The-Powder-Toy/src/powder.c
jacksonmj 77bcac1a56 Small fixes
Fix nearest_part distance calculation
Rename air constants to avoid PLOSS clash with math.h
Prevent crashes due to bad lava ctype.
2011-02-01 16:06:48 +00:00

3023 lines
72 KiB
C

#include <stdint.h>
#include <math.h>
#include <defines.h>
#include <powder.h>
#include <air.h>
#include <misc.h>
int isplayer = 0;
float player[27]; //[0] is a command cell, [3]-[18] are legs positions, [19] is index, [19]-[26] are accelerations
float player2[27];
particle *parts;
particle *cb_parts;
int gravityMode = 1; // starts enabled in "vertical" mode...
unsigned char bmap[YRES/CELL][XRES/CELL];
unsigned char emap[YRES/CELL][XRES/CELL];
unsigned char cb_bmap[YRES/CELL][XRES/CELL];
unsigned char cb_emap[YRES/CELL][XRES/CELL];
int pfree;
unsigned pmap[YRES][XRES];
unsigned cb_pmap[YRES][XRES];
unsigned photons[YRES][XRES];
static int pn_junction_sprk(int x, int y, int pt)
{
unsigned r = pmap[y][x];
if ((r & 0xFF) != pt)
return 0;
r >>= 8;
if (parts[r].type != pt)
return 0;
if (parts[r].life != 0)
return 0;
parts[r].ctype = pt;
part_change_type(r,x,y,PT_SPRK);
parts[r].life = 4;
return 1;
}
static void photoelectric_effect(int nx, int ny)
{
unsigned r = pmap[ny][nx];
if ((r&0xFF) == PT_PSCN) {
if ((pmap[ny][nx-1] & 0xFF) == PT_NSCN ||
(pmap[ny][nx+1] & 0xFF) == PT_NSCN ||
(pmap[ny-1][nx] & 0xFF) == PT_NSCN ||
(pmap[ny+1][nx] & 0xFF) == PT_NSCN)
pn_junction_sprk(nx, ny, PT_PSCN);
}
}
/*
RETURN-value explenation
1 = Swap
0 = No move/Bounce
2 = Both particles occupy the same space.
*/
int eval_move(int pt, int nx, int ny, unsigned *rr)
{
unsigned r;
if (nx<0 || ny<0 || nx>=XRES || ny>=YRES)
return 0;
r = pmap[ny][nx];
if (r && (r>>8)<NPART)
r = (r&~0xFF) | parts[r>>8].type;
if (rr)
*rr = r;
if ((r&0xFF)==PT_VOID || (r&0xFF)==PT_BHOL)
return 1;
if (pt==PT_PHOT&&(
(r&0xFF)==PT_GLAS || (r&0xFF)==PT_PHOT ||
(r&0xFF)==PT_CLNE || (r&0xFF)==PT_PCLN ||
(r&0xFF)==PT_GLOW || (r&0xFF)==PT_WATR ||
(r&0xFF)==PT_DSTW || (r&0xFF)==PT_SLTW ||
(r&0xFF)==PT_ISOZ || (r&0xFF)==PT_ISZS ||
(r&0xFF)==PT_FILT || (r&0xFF)==PT_INVIS ||
(r&0xFF)==PT_QRTZ || (r&0xFF)==PT_PQRT ||
((r&0xFF)==PT_LCRY&&parts[r>>8].life > 5)))
return 2;
if (pt==PT_STKM) //Stick man's head shouldn't collide
return 2;
if (pt==PT_STKM2) //Stick man's head shouldn't collide
return 2;
if ((pt==PT_BIZR||pt==PT_BIZRG)&&(r&0xFF)==PT_FILT)
return 2;
if (bmap[ny/CELL][nx/CELL]==WL_ALLOWGAS && ptypes[pt].falldown!=0 && pt!=PT_FIRE && pt!=PT_SMKE)
return 0;
if (ptypes[pt].falldown!=2 && bmap[ny/CELL][nx/CELL]==WL_ALLOWLIQUID)
return 0;
if ((pt==PT_NEUT ||pt==PT_PHOT) && bmap[ny/CELL][nx/CELL]==WL_EWALL && !emap[ny/CELL][nx/CELL])
return 0;
if (bmap[ny/CELL][nx/CELL]==WL_EHOLE && !emap[ny/CELL][nx/CELL])
return 2;
if (bmap[ny/CELL][nx/CELL]==WL_ALLOWAIR)
return 0;
if (ptypes[pt].falldown!=1 && bmap[ny/CELL][nx/CELL]==WL_ALLOWSOLID)
return 0;
if (r && (r&0xFF) < PT_NUM) {
if (ptypes[pt].properties&TYPE_ENERGY && ptypes[(r&0xFF)].properties&TYPE_ENERGY)
return 2;
if (pt==PT_NEUT && ptypes[(r&0xFF)].properties&PROP_NEUTPASS)
return 2;
if (pt==PT_NEUT && ptypes[(r&0xFF)].properties&PROP_NEUTPENETRATE)
return 1;
if ((r&0xFF)==PT_NEUT && ptypes[pt].properties&PROP_NEUTPENETRATE)
return 0;
}
if (r && ((r&0xFF) >= PT_NUM || (ptypes[pt].weight <= ptypes[(r&0xFF)].weight)))
return 0;
if (pt == PT_PHOT)
return 2;
return 1;
}
int try_move(int i, int x, int y, int nx, int ny)
{
unsigned r, e;
if (x==nx && y==ny)
return 1;
e = eval_move(parts[i].type, nx, ny, &r);
if ((pmap[ny][nx]&0xFF)==PT_BOMB && parts[i].type==PT_BOMB && parts[i].tmp == 1)
e = 2;
if ((pmap[ny][nx]&0xFF)==PT_INVIS && (pv[ny/CELL][nx/CELL]>4.0f ||pv[ny/CELL][nx/CELL]<-4.0f))
return 1;
/* half-silvered mirror */
if (!e && parts[i].type==PT_PHOT &&
(((r&0xFF)==PT_BMTL && rand()<RAND_MAX/2) ||
(pmap[y][x]&0xFF)==PT_BMTL))
e = 2;
if (!e)
{
if (!legacy_enable && parts[i].type==PT_PHOT && r)
{
if ((r & 0xFF) == PT_COAL || (r & 0xFF) == PT_BCOL)
parts[r>>8].temp = parts[i].temp;
if ((r & 0xFF) < PT_NUM && ptypes[r&0xFF].hconduct)
parts[i].temp = parts[r>>8].temp = restrict_flt((parts[r>>8].temp+parts[i].temp)/2, MIN_TEMP, MAX_TEMP);
}
return 0;
}
if (e == 2)
{
if (parts[i].type == PT_PHOT && (r&0xFF)==PT_GLOW && !parts[r>>8].life)
if (rand() < RAND_MAX/30)
{
parts[r>>8].life = 120;
create_gain_photon(i);
}
if (parts[i].type == PT_PHOT && (r&0xFF)==PT_FILT)
{
int temp_bin = (int)((parts[r>>8].temp-273.0f)*0.025f);
if (temp_bin < 0) temp_bin = 0;
if (temp_bin > 25) temp_bin = 25;
parts[i].ctype = 0x1F << temp_bin;
}
if (parts[i].type == PT_NEUT && (r&0xFF)==PT_GLAS) {
if (rand() < RAND_MAX/10)
create_cherenkov_photon(i);
}
if (parts[i].type == PT_PHOT && (r&0xFF)==PT_INVIS) {
part_change_type(i,x,y,PT_NEUT);
parts[i].ctype = 0;
}
if ((parts[i].type==PT_BIZR||parts[i].type==PT_BIZRG) && (r&0xFF)==PT_FILT)
{
int temp_bin = (int)((parts[r>>8].temp-273.0f)*0.025f);
if (temp_bin < 0) temp_bin = 0;
if (temp_bin > 25) temp_bin = 25;
parts[i].ctype = 0x1F << temp_bin;
}
return 1;
}
if ((r&0xFF)==PT_VOID)
{
if (parts[i].type == PT_STKM)
{
death = 1;
isplayer = 0;
}
if (parts[i].type == PT_STKM2)
{
death2 = 1;
isplayer2 = 0;
}
parts[i].type=PT_NONE;
return 0;
}
if ((r&0xFF)==PT_BHOL)
{
if (parts[i].type == PT_STKM)
{
death = 1;
isplayer = 0;
}
if (parts[i].type == PT_STKM2)
{
death2 = 1;
isplayer2 = 0;
}
parts[i].type=PT_NONE;
if (!legacy_enable)
{
parts[r>>8].temp = restrict_flt(parts[r>>8].temp+parts[i].temp/2, MIN_TEMP, MAX_TEMP);//3.0f;
}
return 0;
}
if ((pmap[ny][nx]&0xFF)==PT_CNCT)
return 0;
if (parts[i].type==PT_CNCT && y<ny && (pmap[y+1][x]&0xFF)==PT_CNCT)
return 0;
if (bmap[ny/CELL][nx/CELL]==WL_EHOLE && !emap[y/CELL][x/CELL])
return 1;
if ((bmap[y/CELL][x/CELL]==WL_EHOLE && !emap[y/CELL][x/CELL]) && (bmap[ny/CELL][nx/CELL]!=WL_EHOLE && !emap[ny/CELL][nx/CELL]))
return 0;
if (r && (r>>8)<NPART && ptypes[r&0xFF].falldown!=2 && bmap[y/CELL][x/CELL]==WL_ALLOWLIQUID)
return 0;
if (parts[i].type == PT_PHOT)
return 1;
e = r >> 8;
if (r && e<NPART)
{
if (parts[e].type == PT_PHOT)
return 1;
parts[e].x += x-nx;
parts[e].y += y-ny;
}
pmap[ny][nx] = (i<<8)|parts[i].type;
pmap[y][x] = r;
return 1;
}
static unsigned direction_to_map(float dx, float dy, int t)
{
// TODO:
// Adding extra directions causes some inaccuracies.
// Not adding them causes problems with some diagonal surfaces (photons absorbed instead of reflected).
// For now, don't add them.
// Solution may involve more intelligent setting of initial i0 value in find_next_boundary?
// or rewriting normal/boundary finding code
return (dx >= 0) |
(((dx + dy) >= 0) << 1) | /* 567 */
((dy >= 0) << 2) | /* 4+0 */
(((dy - dx) >= 0) << 3) | /* 321 */
((dx <= 0) << 4) |
(((dx + dy) <= 0) << 5) |
((dy <= 0) << 6) |
(((dy - dx) <= 0) << 7);
/*
return (dx >= -0.001) |
(((dx + dy) >= -0.001) << 1) | // 567
((dy >= -0.001) << 2) | // 4+0
(((dy - dx) >= -0.001) << 3) | // 321
((dx <= 0.001) << 4) |
(((dx + dy) <= 0.001) << 5) |
((dy <= 0.001) << 6) |
(((dy - dx) <= 0.001) << 7);
}*/
}
static int is_blocking(int t, int x, int y)
{
if (t & REFRACT) {
if (x<0 || y<0 || x>=XRES || y>=YRES)
return 0;
if ((pmap[y][x] & 0xFF) == PT_GLAS)
return 1;
return 0;
}
return !eval_move(t, x, y, NULL);
}
static int is_boundary(int pt, int x, int y)
{
if (!is_blocking(pt,x,y))
return 0;
if (is_blocking(pt,x,y-1) && is_blocking(pt,x,y+1) && is_blocking(pt,x-1,y) && is_blocking(pt,x+1,y))
return 0;
return 1;
}
static int find_next_boundary(int pt, int *x, int *y, int dm, int *em)
{
static int dx[8] = {1,1,0,-1,-1,-1,0,1};
static int dy[8] = {0,1,1,1,0,-1,-1,-1};
static int de[8] = {0x83,0x07,0x0E,0x1C,0x38,0x70,0xE0,0xC1};
int i, ii, i0;
if (*x <= 0 || *x >= XRES-1 || *y <= 0 || *y >= YRES-1)
return 0;
if (*em != -1) {
i0 = *em;
dm &= de[i0];
} else
i0 = 0;
for (ii=0; ii<8; ii++) {
i = (ii + i0) & 7;
if ((dm & (1 << i)) && is_boundary(pt, *x+dx[i], *y+dy[i])) {
*x += dx[i];
*y += dy[i];
*em = i;
return 1;
}
}
return 0;
}
int get_normal(int pt, int x, int y, float dx, float dy, float *nx, float *ny)
{
int ldm, rdm, lm, rm;
int lx, ly, lv, rx, ry, rv;
int i, j;
float r, ex, ey;
if (!dx && !dy)
return 0;
if (!is_boundary(pt, x, y))
return 0;
ldm = direction_to_map(-dy, dx, pt);
rdm = direction_to_map(dy, -dx, pt);
lx = rx = x;
ly = ry = y;
lv = rv = 1;
lm = rm = -1;
j = 0;
for (i=0; i<SURF_RANGE; i++) {
if (lv)
lv = find_next_boundary(pt, &lx, &ly, ldm, &lm);
if (rv)
rv = find_next_boundary(pt, &rx, &ry, rdm, &rm);
j += lv + rv;
if (!lv && !rv)
break;
}
if (j < NORMAL_MIN_EST)
return 0;
if ((lx == rx) && (ly == ry))
return 0;
ex = rx - lx;
ey = ry - ly;
r = 1.0f/hypot(ex, ey);
*nx = ey * r;
*ny = -ex * r;
return 1;
}
int get_normal_interp(int pt, float x0, float y0, float dx, float dy, float *nx, float *ny)
{
int x, y, i;
dx /= NORMAL_FRAC;
dy /= NORMAL_FRAC;
for (i=0; i<NORMAL_INTERP; i++) {
x = (int)(x0 + 0.5f);
y = (int)(y0 + 0.5f);
if (is_boundary(pt, x, y))
break;
x0 += dx;
y0 += dy;
}
if (i >= NORMAL_INTERP)
return 0;
if (pt == PT_PHOT)
photoelectric_effect(x, y);
return get_normal(pt, x, y, dx, dy, nx, ny);
}
void kill_part(int i)
{
int x, y;
if (parts[i].type != PT_PHOT) {
x = (int)(parts[i].x+0.5f);
y = (int)(parts[i].y+0.5f);
if (parts[i].type == PT_STKM)
{
death = 1;
isplayer = 0;
}
if (parts[i].type == PT_STKM2)
{
death2 = 1;
isplayer2 = 0;
}
if (parts[i].type == PT_SPAWN)
{
ISSPAWN1 = 0;
}
if (parts[i].type == PT_SPAWN2)
{
ISSPAWN2 = 0;
}
if (x>=0 && y>=0 && x<XRES && y<YRES) {
if ((pmap[y][x]>>8)==i)
pmap[y][x] = 0;
else if ((photons[y][x]>>8)==i)
photons[y][x] = 0;
}
}
parts[i].type = PT_NONE;
parts[i].life = pfree;
pfree = i;
}
#if defined(WIN32) && !defined(__GNUC__)
_inline void part_change_type(int i, int x, int y, int t)
#else
inline void part_change_type(int i, int x, int y, int t)
#endif
{
if (x<0 || y<0 || x>=XRES || y>=YRES || i>=NPART)
return -1;
parts[i].type = t;
if (t!=PT_STKM&&t!=PT_STKM2 && t!=PT_PHOT)// && t!=PT_NEUT)
pmap[y][x] = t|(i<<8);
else if ((pmap[y][x]>>8)==i)
pmap[y][x] = 0;
}
#if defined(WIN32) && !defined(__GNUC__)
_inline int create_n_parts(int n, int x, int y, float vx, float vy, int t)
#else
inline int create_n_parts(int n, int x, int y, float vx, float vy, int t)
#endif
{
int i, c;
n = (n/10);
if (n<1) {
n = 1;
}
if (n>680) {
n = 680;
}
if (x<0 || y<0 || x>=XRES || y>=YRES)
return -1;
for (c; c<n; c++) {
float r = (rand()%128+128)/127.0f;
float a = (rand()%360)*3.14159f/180.0f;
if (pfree == -1)
return -1;
i = pfree;
pfree = parts[i].life;
parts[i].x = (float)x;
parts[i].y = (float)y;
parts[i].type = t;
parts[i].life = rand()%480+480;
parts[i].vx = r*cosf(a);
parts[i].vy = r*sinf(a);
parts[i].ctype = 0;
parts[i].temp += (n*17);
parts[i].tmp = 0;
if (t!=PT_STKM&&t!=PT_STKM2 && t!=PT_PHOT && !pmap[y][x])// && t!=PT_NEUT)
pmap[y][x] = t|(i<<8);
pv[y/CELL][x/CELL] += 6.0f * CFDS;
}
return 0;
}
#if defined(WIN32) && !defined(__GNUC__)
_inline int create_part(int p, int x, int y, int t)
#else
inline int create_part(int p, int x, int y, int t)
#endif
{
int i;
if (x<0 || y<0 || x>=XRES || y>=YRES)
return -1;
if (t==SPC_HEAT||t==SPC_COOL)
{
if ((pmap[y][x]&0xFF)!=PT_NONE&&(pmap[y][x]&0xFF)<PT_NUM)
{
if (t==SPC_HEAT&&parts[pmap[y][x]>>8].temp<MAX_TEMP)
{
if ((pmap[y][x]&0xFF)==PT_PUMP) {
parts[pmap[y][x]>>8].temp = restrict_flt(parts[pmap[y][x]>>8].temp + 0.1f, MIN_TEMP, MAX_TEMP);
} else if ((sdl_mod & (KMOD_SHIFT)) && (sdl_mod & (KMOD_CTRL))) {
parts[pmap[y][x]>>8].temp = restrict_flt(parts[pmap[y][x]>>8].temp + 50.0f, MIN_TEMP, MAX_TEMP);
} else {
parts[pmap[y][x]>>8].temp = restrict_flt(parts[pmap[y][x]>>8].temp + 4.0f, MIN_TEMP, MAX_TEMP);
}
}
if (t==SPC_COOL&&parts[pmap[y][x]>>8].temp>MIN_TEMP)
{
if ((pmap[y][x]&0xFF)==PT_PUMP) {
parts[pmap[y][x]>>8].temp = restrict_flt(parts[pmap[y][x]>>8].temp - 0.1f, MIN_TEMP, MAX_TEMP);
} else if ((sdl_mod & (KMOD_SHIFT)) && (sdl_mod & (KMOD_CTRL))) {
parts[pmap[y][x]>>8].temp = restrict_flt(parts[pmap[y][x]>>8].temp - 50.0f, MIN_TEMP, MAX_TEMP);
} else {
parts[pmap[y][x]>>8].temp = restrict_flt(parts[pmap[y][x]>>8].temp - 4.0f, MIN_TEMP, MAX_TEMP);
}
}
return pmap[y][x]>>8;
}
else
{
return -1;
}
}
if (t==SPC_AIR)
{
pv[y/CELL][x/CELL] += 0.03f;
if (y+CELL<YRES)
pv[y/CELL+1][x/CELL] += 0.03f;
if (x+CELL<XRES)
{
pv[y/CELL][x/CELL+1] += 0.03f;
if (y+CELL<YRES)
pv[y/CELL+1][x/CELL+1] += 0.03f;
}
return -1;
}
if (t==SPC_VACUUM)
{
pv[y/CELL][x/CELL] -= 0.03f;
if (y+CELL<YRES)
pv[y/CELL+1][x/CELL] -= 0.03f;
if (x+CELL<XRES)
{
pv[y/CELL][x/CELL+1] -= 0.03f;
if (y+CELL<YRES)
pv[y/CELL+1][x/CELL+1] -= 0.03f;
}
return -1;
}
if (t==PT_SPRK)
{
if (!((pmap[y][x]&0xFF)==PT_INST||(ptypes[pmap[y][x]&0xFF].properties&PROP_CONDUCTS)))
return -1;
if (parts[pmap[y][x]>>8].life!=0)
return -1;
parts[pmap[y][x]>>8].type = PT_SPRK;
parts[pmap[y][x]>>8].life = 4;
parts[pmap[y][x]>>8].ctype = pmap[y][x]&0xFF;
pmap[y][x] = (pmap[y][x]&~0xFF) | PT_SPRK;
return pmap[y][x]>>8;
}
if (t==PT_SPAWN&&ISSPAWN1)
return -1;
if (t==PT_SPAWN2&&ISSPAWN2)
return -1;
if (p==-1)//creating from anything but brush
{
if (pmap[y][x])
{
if ((pmap[y][x]&0xFF)!=PT_SPAWN&&(pmap[y][x]&0xFF)!=PT_SPAWN2)
{
if (t!=PT_STKM&&t!=PT_STKM2)
{
return -1;
}
}
}
if (pfree == -1)
return -1;
i = pfree;
pfree = parts[i].life;
}
else if (p==-2)//creating from brush
{
if (pmap[y][x])
{
if (((pmap[y][x]&0xFF)==PT_CLNE||(pmap[y][x]&0xFF)==PT_BCLN||((pmap[y][x]&0xFF)==PT_PCLN&&t!=PT_PSCN&&t!=PT_NSCN))&&(t!=PT_CLNE&&t!=PT_PCLN&&t!=PT_BCLN&&t!=PT_STKM&&t!=PT_STKM2))
{
parts[pmap[y][x]>>8].ctype = t;
}
return -1;
}
if (photons[y][x] && t==PT_PHOT)
return -1;
if (pfree == -1)
return -1;
i = pfree;
pfree = parts[i].life;
}
else
i = p;
if (t==PT_GLAS)
{
parts[i].pavg[1] = pv[y/CELL][x/CELL];
}
if (t==PT_QRTZ)
{
parts[i].pavg[1] = pv[y/CELL][x/CELL];
}
if (t!=PT_STKM&&t!=PT_STKM2)
{
parts[i].x = (float)x;
parts[i].y = (float)y;
parts[i].type = t;
parts[i].vx = 0;
parts[i].vy = 0;
parts[i].life = 0;
parts[i].ctype = 0;
parts[i].temp = ptypes[t].heat;
parts[i].tmp = 0;
}
if (t==PT_ACID)
{
parts[i].life = 75;
}
/*Testing
if(t==PT_WOOD){
parts[i].life = 150;
}
End Testing*/
if (t==PT_WARP) {
parts[i].life = rand()%95+70;
}
if (t==PT_FUSE) {
parts[i].life = 50;
parts[i].tmp = 50;
}
if (ptypes[t].properties&PROP_LIFE) {
int r;
for(r = 0; r<NGOL; r++)
if(t==goltype[r])
parts[i].tmp = grule[r+1][9] - 1;
}
if (t==PT_DEUT)
parts[i].life = 10;
if (t==PT_BRAY)
parts[i].life = 30;
if (t==PT_PUMP)
parts[i].life= 10;
if (t==PT_SING)
parts[i].life = rand()%50+60;
if (t==PT_QRTZ)
parts[i].tmp = (rand()%11);
if (t==PT_PQRT)
parts[i].tmp = (rand()%11);
if (t==PT_FSEP)
parts[i].life = 50;
if (t==PT_COAL) {
parts[i].life = 110;
parts[i].tmp = 50;
}
if (t==PT_FRZW)
parts[i].life = 100;
if (t==PT_PIPE)
parts[i].life = 60;
if (t==PT_BCOL)
parts[i].life = 110;
if (t==PT_FIRE)
parts[i].life = rand()%50+120;
if (t==PT_PLSM)
parts[i].life = rand()%150+50;
if (t==PT_HFLM)
parts[i].life = rand()%150+50;
if (t==PT_LAVA)
parts[i].life = rand()%120+240;
if (t==PT_NBLE)
parts[i].life = 0;
if (t==PT_ICEI)
parts[i].ctype = PT_WATR;
if (t==PT_NEUT)
{
float r = (rand()%128+128)/127.0f;
float a = (rand()%360)*3.14159f/180.0f;
parts[i].life = rand()%480+480;
parts[i].vx = r*cosf(a);
parts[i].vy = r*sinf(a);
}
if (t==PT_MORT)
{
parts[i].vx = 2;
}
if (t==PT_PHOT)
{
float a = (rand()%8) * 0.78540f;
parts[i].life = 680;
parts[i].ctype = 0x3FFFFFFF;
parts[i].vx = 3.0f*cosf(a);
parts[i].vy = 3.0f*sinf(a);
}
if (t==PT_PHOT)
photons[y][x] = t|(i<<8);
if (t==PT_STKM)
{
if (isplayer==0)
{
if (pmap[y][x]&0xFF==PT_SPAWN)
{
parts[pmap[y][x]>>8].type = PT_STKM;
parts[pmap[y][x]>>8].vx = 0;
parts[pmap[y][x]>>8].vy = 0;
parts[pmap[y][x]>>8].life = 100;
parts[pmap[y][x]>>8].ctype = 0;
parts[pmap[y][x]>>8].temp = ptypes[t].heat;
}
else
{
parts[i].x = (float)x;
parts[i].y = (float)y;
parts[i].type = PT_STKM;
parts[i].vx = 0;
parts[i].vy = 0;
parts[i].life = 100;
parts[i].ctype = 0;
parts[i].temp = ptypes[t].heat;
}
player[3] = x-1; //Setting legs positions
player[4] = y+6;
player[5] = x-1;
player[6] = y+6;
player[7] = x-3;
player[8] = y+12;
player[9] = x-3;
player[10] = y+12;
player[11] = x+1;
player[12] = y+6;
player[13] = x+1;
player[14] = y+6;
player[15] = x+3;
player[16] = y+12;
player[17] = x+3;
player[18] = y+12;
isplayer = 1;
}
else
{
return -1;
}
//kill_part(playerspawn);
create_part(-1,x,y,PT_SPAWN);
ISSPAWN1 = 1;
}
if (t==PT_STKM2)
{
if (isplayer2==0)
{
if (pmap[y][x]&0xFF==PT_SPAWN2)
{
parts[pmap[y][x]>>8].type = PT_STKM2;
parts[pmap[y][x]>>8].vx = 0;
parts[pmap[y][x]>>8].vy = 0;
parts[pmap[y][x]>>8].life = 100;
parts[pmap[y][x]>>8].ctype = 0;
parts[pmap[y][x]>>8].temp = ptypes[t].heat;
}
else
{
parts[i].x = (float)x;
parts[i].y = (float)y;
parts[i].type = PT_STKM2;
parts[i].vx = 0;
parts[i].vy = 0;
parts[i].life = 100;
parts[i].ctype = 0;
parts[i].temp = ptypes[t].heat;
}
player2[3] = x-1; //Setting legs positions
player2[4] = y+6;
player2[5] = x-1;
player2[6] = y+6;
player2[7] = x-3;
player2[8] = y+12;
player2[9] = x-3;
player2[10] = y+12;
player2[11] = x+1;
player2[12] = y+6;
player2[13] = x+1;
player2[14] = y+6;
player2[15] = x+3;
player2[16] = y+12;
player2[17] = x+3;
player2[18] = y+12;
isplayer2 = 1;
}
else
{
return -1;
}
//kill_part(player2spawn);
create_part(-1,x,y,PT_SPAWN2);
ISSPAWN2 = 1;
}
if (t==PT_BIZR||t==PT_BIZRG)
parts[i].ctype = 0x47FFFF;
if (t!=PT_STKM&&t!=PT_STKM2 && t!=PT_PHOT)// && t!=PT_NEUT) is this needed? it breaks floodfill, Yes photons should not be placed in the PMAP
pmap[y][x] = t|(i<<8);
return i;
}
static void create_gain_photon(int pp)
{
float xx, yy;
int i, lr, temp_bin, nx, ny;
if (pfree == -1)
return;
i = pfree;
lr = rand() % 2;
if (lr) {
xx = parts[pp].x - 0.3*parts[pp].vy;
yy = parts[pp].y + 0.3*parts[pp].vx;
} else {
xx = parts[pp].x + 0.3*parts[pp].vy;
yy = parts[pp].y - 0.3*parts[pp].vx;
}
nx = (int)(xx + 0.5f);
ny = (int)(yy + 0.5f);
if (nx<0 || ny<0 || nx>=XRES || ny>=YRES)
return;
if ((pmap[ny][nx] & 0xFF) != PT_GLOW)
return;
pfree = parts[i].life;
parts[i].type = PT_PHOT;
parts[i].life = 680;
parts[i].x = xx;
parts[i].y = yy;
parts[i].vx = parts[pp].vx;
parts[i].vy = parts[pp].vy;
parts[i].temp = parts[pmap[ny][nx] >> 8].temp;
parts[i].tmp = 0;
photons[ny][nx] = PT_PHOT|(i<<8);
temp_bin = (int)((parts[i].temp-273.0f)*0.25f);
if (temp_bin < 0) temp_bin = 0;
if (temp_bin > 25) temp_bin = 25;
parts[i].ctype = 0x1F << temp_bin;
}
static void create_cherenkov_photon(int pp)
{
int i, lr, nx, ny;
float r, eff_ior;
if (pfree == -1)
return;
i = pfree;
nx = (int)(parts[pp].x + 0.5f);
ny = (int)(parts[pp].y + 0.5f);
if ((pmap[ny][nx] & 0xFF) != PT_GLAS)
return;
if (hypotf(parts[pp].vx, parts[pp].vy) < 1.44f)
return;
pfree = parts[i].life;
lr = rand() % 2;
parts[i].type = PT_PHOT;
parts[i].ctype = 0x00000F80;
parts[i].life = 680;
parts[i].x = parts[pp].x;
parts[i].y = parts[pp].y;
parts[i].temp = parts[pmap[ny][nx] >> 8].temp;
parts[i].tmp = 0;
photons[ny][nx] = PT_PHOT|(i<<8);
if (lr) {
parts[i].vx = parts[pp].vx - 2.5f*parts[pp].vy;
parts[i].vy = parts[pp].vy + 2.5f*parts[pp].vx;
} else {
parts[i].vx = parts[pp].vx + 2.5f*parts[pp].vy;
parts[i].vy = parts[pp].vy - 2.5f*parts[pp].vx;
}
/* photons have speed of light. no discussion. */
r = 1.269 / hypotf(parts[i].vx, parts[i].vy);
parts[i].vx *= r;
parts[i].vy *= r;
}
#if defined(WIN32) && !defined(__GNUC__)
_inline void delete_part(int x, int y)
#else
inline void delete_part(int x, int y)
#endif
{
unsigned i;
if (x<0 || y<0 || x>=XRES || y>=YRES)
return;
if (photons[y][x]) {
i = photons[y][x];
} else {
i = pmap[y][x];
}
if (!i || (i>>8)>=NPART)
return;
if ((parts[i>>8].type==SLALT)||SLALT==0)
{
kill_part(i>>8);
}
else if (ptypes[parts[i>>8].type].menusection==SEC)
{
kill_part(i>>8);
}
else
return;
}
#if defined(WIN32) && !defined(__GNUC__)
_inline int is_wire(int x, int y)
#else
inline int is_wire(int x, int y)
#endif
{
return bmap[y][x]==WL_DETECT || bmap[y][x]==WL_EWALL || bmap[y][x]==WL_ALLOWLIQUID || bmap[y][x]==WL_WALLELEC || bmap[y][x]==WL_ALLOWALLELEC || bmap[y][x]==WL_EHOLE;
}
#if defined(WIN32) && !defined(__GNUC__)
_inline int is_wire_off(int x, int y)
#else
inline int is_wire_off(int x, int y)
#endif
{
return (bmap[y][x]==WL_DETECT || bmap[y][x]==WL_EWALL || bmap[y][x]==WL_ALLOWLIQUID || bmap[y][x]==WL_WALLELEC || bmap[y][x]==WL_ALLOWALLELEC || bmap[y][x]==WL_EHOLE) && emap[y][x]<8;
}
int get_wavelength_bin(int *wm)
{
int i, w0=30, wM=0;
if (!*wm)
return -1;
for (i=0; i<30; i++)
if (*wm & (1<<i)) {
if (i < w0)
w0 = i;
if (i > wM)
wM = i;
}
if (wM-w0 < 5)
return (wM+w0)/2;
i = rand() % (wM-w0-3);
i += w0;
*wm &= 0x1F << i;
return i + 2;
}
void set_emap(int x, int y)
{
int x1, x2;
if (!is_wire_off(x, y))
return;
// go left as far as possible
x1 = x2 = x;
while (x1>0)
{
if (!is_wire_off(x1-1, y))
break;
x1--;
}
while (x2<XRES/CELL-1)
{
if (!is_wire_off(x2+1, y))
break;
x2++;
}
// fill span
for (x=x1; x<=x2; x++)
emap[y][x] = 16;
// fill children
if (y>1 && x1==x2 &&
is_wire(x1-1, y-1) && is_wire(x1, y-1) && is_wire(x1+1, y-1) &&
!is_wire(x1-1, y-2) && is_wire(x1, y-2) && !is_wire(x1+1, y-2))
set_emap(x1, y-2);
else if (y>0)
for (x=x1; x<=x2; x++)
if (is_wire_off(x, y-1))
{
if (x==x1 || x==x2 || y>=YRES/CELL-1 ||
is_wire(x-1, y-1) || is_wire(x+1, y-1) ||
is_wire(x-1, y+1) || !is_wire(x, y+1) || is_wire(x+1, y+1))
set_emap(x, y-1);
}
if (y<YRES/CELL-2 && x1==x2 &&
is_wire(x1-1, y+1) && is_wire(x1, y+1) && is_wire(x1+1, y+1) &&
!is_wire(x1-1, y+2) && is_wire(x1, y+2) && !is_wire(x1+1, y+2))
set_emap(x1, y+2);
else if (y<YRES/CELL-1)
for (x=x1; x<=x2; x++)
if (is_wire_off(x, y+1))
{
if (x==x1 || x==x2 || y<0 ||
is_wire(x-1, y+1) || is_wire(x+1, y+1) ||
is_wire(x-1, y-1) || !is_wire(x, y-1) || is_wire(x+1, y-1))
set_emap(x, y+1);
}
}
#if defined(WIN32) && !defined(__GNUC__)
_inline int parts_avg(int ci, int ni,int t)//t is the particle you are looking for
#else
inline int parts_avg(int ci, int ni,int t)
#endif
{
if (t==PT_INSL)//to keep electronics working
{
int pmr = pmap[(int)((parts[ci].y + parts[ni].y)/2)][(int)((parts[ci].x + parts[ni].x)/2)];
if ((pmr>>8) < NPART && pmr)
return parts[pmr>>8].type;
else
return PT_NONE;
}
else
{
int pmr2 = pmap[(int)((parts[ci].y + parts[ni].y)/2+0.5f)][(int)((parts[ci].x + parts[ni].x)/2+0.5f)];//seems to be more accurate.
if ((pmr2>>8) < NPART && pmr2)
{
if (parts[pmr2>>8].type==t)
return t;
}
else
return PT_NONE;
}
return PT_NONE;
}
int nearest_part(int ci, int t)
{
int distance = MAX_DISTANCE;
int ndistance = 0;
int id = -1;
int i = 0;
int cx = (int)parts[ci].x;
int cy = (int)parts[ci].y;
for (i=0; i<NPART; i++)
{
if (parts[i].type==t&&!parts[i].life&&i!=ci)
{
ndistance = abs(cx-parts[i].x)+abs(cy-parts[i].y);// Faster but less accurate Older: sqrt(pow(cx-parts[i].x, 2)+pow(cy-parts[i].y, 2));
if (ndistance<distance)
{
distance = ndistance;
id = i;
}
}
}
return id;
}
void update_particles_i(pixel *vid, int start, int inc)
{
int i, j, x, y, t, nx, ny, r, surround_space, s, lt, rt, nt, nnx, nny, q, golnum, goldelete, z, neighbors;
float mv, dx, dy, ix, iy, lx, ly, nrx, nry, dp;
int fin_x, fin_y, clear_x, clear_y;
float fin_xf, fin_yf, clear_xf, clear_yf;
float nn, ct1, ct2, swappage;
float pt = R_TEMP;
float c_heat = 0.0f;
int h_count = 0;
int starti = (start*-1);
int surround[8];
int surround_hconduct[8];
float pGravX, pGravY, pGravD;
if (sys_pause&&!framerender)
return;
if (ISGRAV==1)
{
ISGRAV = 0;
GRAV ++;
GRAV_R = 60;
GRAV_G = 0;
GRAV_B = 0;
GRAV_R2 = 30;
GRAV_G2 = 30;
GRAV_B2 = 0;
for ( q = 0; q <= GRAV; q++)
{
if (GRAV_R >0 && GRAV_G==0)
{
GRAV_R--;
GRAV_B++;
}
if (GRAV_B >0 && GRAV_R==0)
{
GRAV_B--;
GRAV_G++;
}
if (GRAV_G >0 && GRAV_B==0)
{
GRAV_G--;
GRAV_R++;
}
if (GRAV_R2 >0 && GRAV_G2==0)
{
GRAV_R2--;
GRAV_B2++;
}
if (GRAV_B2 >0 && GRAV_R2==0)
{
GRAV_B2--;
GRAV_G2++;
}
if (GRAV_G2 >0 && GRAV_B2==0)
{
GRAV_G2--;
GRAV_R2++;
}
}
if (GRAV>180) GRAV = 0;
}
if (ISLOVE==1)
{
ISLOVE = 0;
for (ny=0; ny<YRES-4; ny++)
{
for (nx=0; nx<XRES-4; nx++)
{
r=pmap[ny][nx];
if ((r>>8)>=NPART || !r)
{
continue;
}
else if ((ny<9||nx<9||ny>YRES-7||nx>XRES-10)&&parts[r>>8].type==PT_LOVE)
kill_part(r>>8);
else if (parts[r>>8].type==PT_LOVE)
{
love[nx/9][ny/9] = 1;
}
}
}
for (nx=9; nx<=XRES-18; nx++)
{
for (ny=9; ny<=YRES-7; ny++)
{
if (love[nx/9][ny/9]==1)
{
for ( nnx=0; nnx<9; nnx++)
for ( nny=0; nny<9; nny++)
{
if (ny+nny>0&&ny+nny<YRES&&nx+nnx>=0&&nx+nnx<XRES)
{
rt=pmap[ny+nny][nx+nnx];
if ((rt>>8)>=NPART)
{
continue;
}
if (!rt&&loverule[nnx][nny]==1)
create_part(-1,nx+nnx,ny+nny,PT_LOVE);
else if (!rt)
continue;
else if (parts[rt>>8].type==PT_LOVE&&loverule[nnx][nny]==0)
kill_part(rt>>8);
}
}
}
love[nx/9][ny/9]=0;
}
}
}
if (ISLOLZ==1)
{
ISLOLZ = 0;
for (ny=0; ny<YRES-4; ny++)
{
for (nx=0; nx<XRES-4; nx++)
{
r=pmap[ny][nx];
if ((r>>8)>=NPART || !r)
{
continue;
}
else if ((ny<9||nx<9||ny>YRES-7||nx>XRES-10)&&parts[r>>8].type==PT_LOLZ)
kill_part(r>>8);
else if (parts[r>>8].type==PT_LOLZ)
{
lolz[nx/9][ny/9] = 1;
}
}
}
for (nx=9; nx<=XRES-18; nx++)
{
for (ny=9; ny<=YRES-7; ny++)
{
if (lolz[nx/9][ny/9]==1)
{
for ( nnx=0; nnx<9; nnx++)
for ( nny=0; nny<9; nny++)
{
if (ny+nny>0&&ny+nny<YRES&&nx+nnx>=0&&nx+nnx<XRES)
{
rt=pmap[ny+nny][nx+nnx];
if ((rt>>8)>=NPART)
{
continue;
}
if (!rt&&lolzrule[nny][nnx]==1)
create_part(-1,nx+nnx,ny+nny,PT_LOLZ);
else if (!rt)
continue;
else if (parts[rt>>8].type==PT_LOLZ&&lolzrule[nny][nnx]==0)
kill_part(rt>>8);
}
}
}
lolz[nx/9][ny/9]=0;
}
}
}
if (ISGOL==1&&++CGOL>=GSPEED)//GSPEED is frames per generation
{
int createdsomething = 0;
CGOL=0;
ISGOL=0;
for (nx=CELL; nx<XRES-CELL; nx++)
for (ny=CELL; ny<YRES-CELL; ny++)
{
r = pmap[ny][nx];
if ((r>>8)>=NPART || !r)
{
gol[nx][ny] = 0;
continue;
}
else
for ( golnum=1; golnum<=NGOL; golnum++)
if (parts[r>>8].type==goltype[golnum-1])
{
if(parts[r>>8].tmp == grule[golnum][9]-1) {
gol[nx][ny] = golnum;
for ( nnx=-1; nnx<2; nnx++)
for ( nny=-1; nny<2; nny++)//it will count itself as its own neighbor, which is needed, but will have 1 extra for delete check
{
gol2[((nx+nnx+XRES-3*CELL)%(XRES-2*CELL))+CELL][((ny+nny+YRES-3*CELL)%(YRES-2*CELL))+CELL][golnum] ++;
gol2[((nx+nnx+XRES-3*CELL)%(XRES-2*CELL))+CELL][((ny+nny+YRES-3*CELL)%(YRES-2*CELL))+CELL][0] ++;
}
} else {
parts[r>>8].tmp --;
if(parts[r>>8].tmp<=0)
parts[r>>8].type = PT_NONE;//using kill_part makes it not work
}
}
}
for (nx=CELL; nx<XRES-CELL; nx++)
for (ny=CELL; ny<YRES-CELL; ny++)
{
r = pmap[ny][nx];
neighbors = gol2[nx][ny][0];
if(neighbors==0 || !(ptypes[r&0xFF].properties&PROP_LIFE || !r&0xFF) || (r>>8)>=NPART)
continue;
for ( golnum = 1; golnum<=NGOL; golnum++)
for ( goldelete = 0; goldelete<9; goldelete++)
{
if (neighbors==goldelete&&gol[nx][ny]==0&&grule[golnum][goldelete]>=2&&gol2[nx][ny][golnum]>=(goldelete%2)+goldelete/2)
{
if (create_part(-1,nx,ny,goltype[golnum-1]))
createdsomething = 1;
}
else if (neighbors-1==goldelete&&gol[nx][ny]==golnum&&(grule[golnum][goldelete]==0||grule[golnum][goldelete]==2))//subtract 1 because it counted itself
{
if(parts[r>>8].tmp==grule[golnum][9]-1)
parts[r>>8].tmp --;
}
if(parts[r>>8].tmp<=0)
parts[r>>8].type = PT_NONE;//using kill_part makes it not work
}
gol2[nx][ny][0] = 0;
for ( z = 1; z<=NGOL; z++)
gol2[nx][ny][z] = 0;
}
if (createdsomething)
GENERATION ++;
}
if (ISWIRE==1)
{
for ( q = 0; q<(int)(MAX_TEMP-73.15f)/100+2; q++)
if (!wireless[q][1])
{
wireless[q][0] = 0;
}
else
wireless[q][1] = 0;
}
for (i=start; i<(NPART-starti); i+=inc)
if (parts[i].type)
{
lx = parts[i].x;
ly = parts[i].y;
t = parts[i].type;
//printf("parts[%d].type: %d\n", i, parts[i].type);
if (parts[i].life && t!=PT_ACID && t!=PT_COAL && t!=PT_WOOD && t!=PT_STKM && t!=PT_STKM2 && t!=PT_FUSE && t!=PT_FSEP && t!=PT_BCOL && t!=PT_GOL && t!=PT_SPNG && t!=PT_DEUT)
{
if (!(parts[i].life==10&&(t==PT_SWCH||t==PT_LCRY||t==PT_PCLN||t==PT_HSWC||t==PT_PUMP)))
parts[i].life--;
if (parts[i].life<=0 && !(ptypes[t].properties&PROP_CONDUCTS) && t!=PT_ARAY && t!=PT_FIRW && t!=PT_SWCH && t!=PT_PCLN && t!=PT_HSWC && t!=PT_PUMP && t!=PT_SPRK && t!=PT_LAVA && t!=PT_LCRY && t!=PT_QRTZ && t!=PT_GLOW && t!= PT_FOG && t!=PT_PIPE && t!=PT_FRZW &&(t!=PT_ICEI&&parts[i].ctype!=PT_FRZW)&&t!=PT_INST && t!=PT_SHLD1&& t!=PT_SHLD2&& t!=PT_SHLD3&& t!=PT_SHLD4)
{
kill_part(i);
continue;
}
}
x = (int)(parts[i].x+0.5f);
y = (int)(parts[i].y+0.5f);
if (x<CELL || y<CELL || x>=XRES-CELL || y>=YRES-CELL ||
(bmap[y/CELL][x/CELL] &&
(bmap[y/CELL][x/CELL]==WL_WALL ||
bmap[y/CELL][x/CELL]==WL_WALLELEC ||
bmap[y/CELL][x/CELL]==WL_ALLOWAIR ||
(bmap[y/CELL][x/CELL]==WL_DESTROYALL) ||
(bmap[y/CELL][x/CELL]==WL_ALLOWLIQUID && ptypes[t].falldown!=2) ||
(bmap[y/CELL][x/CELL]==WL_ALLOWSOLID && ptypes[t].falldown!=1) ||
(bmap[y/CELL][x/CELL]==WL_ALLOWGAS && ptypes[t].falldown!=0 && parts[i].type!=PT_FIRE && parts[i].type!=PT_SMKE && parts[i].type!=PT_HFLM) ||
(bmap[y/CELL][x/CELL]==WL_DETECT && (t==PT_METL || t==PT_SPRK)) ||
(bmap[y/CELL][x/CELL]==WL_EWALL && !emap[y/CELL][x/CELL])) && (t!=PT_STKM) && (t!=PT_STKM2)))
{
kill_part(i);
continue;
}
if (bmap[y/CELL][x/CELL]==WL_DETECT && emap[y/CELL][x/CELL]<8)
set_emap(x/CELL, y/CELL);
vx[y/CELL][x/CELL] = vx[y/CELL][x/CELL]*ptypes[t].airloss + ptypes[t].airdrag*parts[i].vx;
vy[y/CELL][x/CELL] = vy[y/CELL][x/CELL]*ptypes[t].airloss + ptypes[t].airdrag*parts[i].vy;
if (t==PT_GAS||t==PT_NBLE)
{
if (pv[y/CELL][x/CELL]<3.5f)
pv[y/CELL][x/CELL] += ptypes[t].hotair*(3.5f-pv[y/CELL][x/CELL]);
if (y+CELL<YRES && pv[y/CELL+1][x/CELL]<3.5f)
pv[y/CELL+1][x/CELL] += ptypes[t].hotair*(3.5f-pv[y/CELL+1][x/CELL]);
if (x+CELL<XRES)
{
pv[y/CELL][x/CELL+1] += ptypes[t].hotair*(3.5f-pv[y/CELL][x/CELL+1]);
if (y+CELL<YRES)
pv[y/CELL+1][x/CELL+1] += ptypes[t].hotair*(3.5f-pv[y/CELL+1][x/CELL+1]);
}
}
else
{
pv[y/CELL][x/CELL] += ptypes[t].hotair;
if (y+CELL<YRES)
pv[y/CELL+1][x/CELL] += ptypes[t].hotair;
if (x+CELL<XRES)
{
pv[y/CELL][x/CELL+1] += ptypes[t].hotair;
if (y+CELL<YRES)
pv[y/CELL+1][x/CELL+1] += ptypes[t].hotair;
}
}
//Gravity mode by Moach
switch (gravityMode)
{
default:
case 0:
pGravX = pGravY = 0.0f;
break;
case 1:
pGravX = 0.0f;
pGravY = ptypes[t].gravity;
break;
case 2:
pGravD = 0.01f - hypotf((x - XCNTR), (y - YCNTR));
pGravX = ptypes[t].gravity * ((float)(x - XCNTR) / pGravD);
pGravY = ptypes[t].gravity * ((float)(y - YCNTR) / pGravD);
}
parts[i].vx *= ptypes[t].loss;
parts[i].vy *= ptypes[t].loss;
parts[i].vx += ptypes[t].advection*vx[y/CELL][x/CELL] + pGravX;
parts[i].vy += ptypes[t].advection*vy[y/CELL][x/CELL] + pGravY;
if (ptypes[t].diffusion)
{
parts[i].vx += ptypes[t].diffusion*(rand()/(0.5f*RAND_MAX)-1.0f);
parts[i].vy += ptypes[t].diffusion*(rand()/(0.5f*RAND_MAX)-1.0f);
}
j = surround_space = nt = 0;
for (nx=-1; nx<2; nx++)
for (ny=-1; ny<2; ny++) {
if (nx||ny) {
surround[j] = r = pmap[y+ny][x+nx];
j++;
if (!bmap[(y+ny)/CELL][(x+nx)/CELL] || bmap[(y+ny)/CELL][(x+nx)/CELL]==WL_STREAM)
{
if (!(r&0xFF))
surround_space = 1;
if ((r&0xFF)!=t)
nt = 1;
}
}
}
if (!legacy_enable)
{
if (y-2 >= 0 && y-2 < YRES && (ptypes[t].properties&TYPE_LIQUID)) {
r = pmap[y-2][x];
if (!((r>>8)>=NPART || !r || parts[i].type != (r&0xFF))) {
if (parts[i].temp>parts[r>>8].temp) {
swappage = parts[i].temp;
parts[i].temp = parts[r>>8].temp;
parts[r>>8].temp = swappage;
}
}
}
c_heat = 0.0f;
h_count = 0;
if (t&&(t!=PT_HSWC||parts[i].life==10)&&ptypes[t].hconduct>(rand()%250))
{
for (j=0; j<8; j++)
{
surround_hconduct[j] = i;
r = surround[j];
if ((r>>8)>=NPART || !r)
continue;
rt = r&0xFF;
if (rt&&ptypes[rt].hconduct&&(rt!=PT_HSWC||parts[r>>8].life==10)
&&(t!=PT_FILT||(rt!=PT_BRAY&&rt!=PT_BIZR&&rt!=PT_BIZRG))
&&(rt!=PT_FILT||(t!=PT_BRAY&&t!=PT_PHOT&&t!=PT_BIZR&&t!=PT_BIZRG)))
{
surround_hconduct[j] = r>>8;
c_heat += parts[r>>8].temp;
h_count++;
}
}
pt = parts[i].temp = (c_heat+parts[i].temp)/(h_count+1);
for (j=0; j<8; j++)
{
parts[surround_hconduct[j]].temp = pt;
}
s = 1;
if (pt>ptransitions[t].thv&&ptransitions[t].tht>-1) {
// particle type change due to high temperature
if (ptransitions[t].tht!=PT_NUM)
t = ptransitions[t].tht;
else if (t==PT_ICEI) {
if (parts[i].ctype&&parts[i].ctype!=PT_ICEI) {
if (ptransitions[parts[i].ctype].tlt==PT_ICEI&&pt<=ptransitions[parts[i].ctype].tlv) s = 0;
else {
t = parts[i].ctype;
parts[i].ctype = PT_NONE;
parts[i].life = 0;
}
}
else if (pt>274.0f) t = PT_WATR;
else s = 0;
}
else if (t==PT_SLTW) {
if (1>rand()%6) t = PT_SALT;
else t = PT_WTRV;
}
else s = 0;
} else if (pt<ptransitions[t].tlv&&ptransitions[t].tlt>-1) {
// particle type change due to low temperature
if (ptransitions[t].tlt!=PT_NUM)
t = ptransitions[t].tlt;
else if (t==PT_WTRV) {
if (pt<273.0f) t = PT_RIME;
else t = PT_DSTW;
}
else if (t==PT_LAVA) {
if (parts[i].ctype && parts[i].ctype<PT_NUM && parts[i].ctype!=PT_LAVA) {
if (ptransitions[parts[i].ctype].tht==PT_LAVA&&pt>=ptransitions[parts[i].ctype].thv) s = 0;
else if (parts[i].ctype==PT_THRM&&pt>=ptransitions[PT_BMTL].thv) s = 0;
else if (pt>=973.0f) s = 0; // freezing point for lava with any other (not listed in ptransitions as turning into lava) ctype
else {
t = parts[i].ctype;
parts[i].ctype = PT_NONE;
if (t==PT_THRM) {
parts[i].tmp = 0;
t = PT_BMTL;
}
if (parts[i].ctype==PT_PLUT)
{
parts[i].tmp = 0;
t = parts[i].ctype = PT_LAVA;
}
}
}
else if (pt<973.0f) t = PT_STNE;
else s = 0;
}
else s = 0;
if (s) parts[i].life = 0;
}
else s = 0;
if (s) { // particle type change occurred
parts[i].life = 0;
if (t==PT_ICEI||t==PT_LAVA)
parts[i].ctype = parts[i].type;
if (ptypes[t].state==ST_GAS&&ptypes[parts[i].type].state!=ST_GAS)
pv[y/CELL][x/CELL] += 0.50f;
part_change_type(i,x,y,t);
if (t==PT_FIRE||t==PT_PLSM||t==PT_HFLM)
parts[i].life = rand()%50+120;
if (t==PT_LAVA) {
if (parts[i].ctype==PT_BRMT) parts[i].ctype = PT_BMTL;
else if (parts[i].ctype==PT_SAND) parts[i].ctype = PT_GLAS;
else if (parts[i].ctype==PT_BGLA) parts[i].ctype = PT_GLAS;
else if (parts[i].ctype==PT_PQRT) parts[i].ctype = PT_QRTZ;
parts[i].life = rand()%120+240;
}
if (t==PT_NONE) {
kill_part(i);
goto killed;
}
}
pt = parts[i].temp = restrict_flt(parts[i].temp, MIN_TEMP, MAX_TEMP);
if (t==PT_LAVA) {
parts[i].life = restrict_flt((parts[i].temp-700)/7, 0.0f, 400.0f);
if (parts[i].ctype==PT_THRM&&parts[i].tmp>0)
{
parts[i].tmp--;
parts[i].temp = 3500;
}
if (parts[i].ctype==PT_PLUT&&parts[i].tmp>0)
{
parts[i].tmp--;
parts[i].temp = MAX_TEMP;
}
}
}
}
if (ptypes[t].properties&PROP_LIFE)
{
parts[i].temp = restrict_flt(parts[i].temp-50.0f, MIN_TEMP, MAX_TEMP);
ISGOL=1;
}
if ((ptypes[t].properties&PROP_CONDUCTS) || t==PT_SPRK)
{
nx = x % CELL;
if (nx == 0)
nx = x/CELL - 1;
else if (nx == CELL-1)
nx = x/CELL + 1;
else
nx = x/CELL;
ny = y % CELL;
if (ny == 0)
ny = y/CELL - 1;
else if (ny == CELL-1)
ny = y/CELL + 1;
else
ny = y/CELL;
if (nx>=0 && ny>=0 && nx<XRES/CELL && ny<YRES/CELL)
{
if (t!=PT_SPRK)
{
if (emap[ny][nx]==12 && !parts[i].life)
{
part_change_type(i,x,y,PT_SPRK);
parts[i].life = 4;
parts[i].ctype = t;
t = PT_SPRK;
}
}
else if (bmap[ny][nx]==WL_DETECT || bmap[ny][nx]==WL_EWALL || bmap[ny][nx]==WL_ALLOWLIQUID || bmap[ny][nx]==WL_WALLELEC || bmap[ny][nx]==WL_ALLOWALLELEC || bmap[ny][nx]==WL_EHOLE)
set_emap(nx, ny);
}
}
if ((ptypes[t].explosive&2) && pv[y/CELL][x/CELL]>2.5f)
{
parts[i].life = rand()%80+180;
parts[i].temp = restrict_flt(ptypes[PT_FIRE].heat + (ptypes[t].flammable/2), MIN_TEMP, MAX_TEMP);
t = PT_FIRE;
part_change_type(i,x,y,t);
pv[y/CELL][x/CELL] += 0.25f * CFDS;
}
s = 1;
if (pv[y/CELL][x/CELL]>ptransitions[t].phv&&ptransitions[t].pht>-1) {
// particle type change due to high pressure
if (ptransitions[t].pht!=PT_NUM)
t = ptransitions[t].pht;
else if (t==PT_BMTL) {
if (pv[y/CELL][x/CELL]>2.5f)
t = PT_BRMT;
else if (pv[y/CELL][x/CELL]>1.0f && parts[i].tmp==1)
t = PT_BRMT;
else s = 0;
}
else s = 0;
} else if (pv[y/CELL][x/CELL]<ptransitions[t].plv&&ptransitions[t].plt>-1) {
// particle type change due to low pressure
if (ptransitions[t].plt!=PT_NUM)
t = ptransitions[t].plt;
else s = 0;
}
else s = 0;
if (s) { // particle type change occurred
parts[i].life = 0;
part_change_type(i,x,y,t);
if (t==PT_FIRE)
parts[i].life = rand()%50+120;
if (t==PT_NONE) {
kill_part(i);
goto killed;
}
}
if (ptypes[t].update_func)
{
if ((*(ptypes[t].update_func))(i,x,y,surround_space))
continue;
}
if (legacy_enable)
update_legacy_all(i,x,y,surround_space);
killed:
if (parts[i].type == PT_NONE)
continue;
if (!parts[i].vx&&!parts[i].vy)
continue;
#if defined(WIN32) && !defined(__GNUC__)
mv = max(fabsf(parts[i].vx), fabsf(parts[i].vy));
#else
mv = fmaxf(fabsf(parts[i].vx), fabsf(parts[i].vy));
#endif
if (mv < ISTP)
{
clear_x = x;
clear_y = y;
clear_xf = parts[i].x;
clear_yf = parts[i].y;
fin_xf = clear_xf + parts[i].vx;
fin_yf = clear_yf + parts[i].vy;
fin_x = (int)(fin_xf+0.5f);
fin_y = (int)(fin_yf+0.5f);
}
else
{
// interpolate to see if there is anything in the way
dx = parts[i].vx*ISTP/mv;
dy = parts[i].vy*ISTP/mv;
fin_xf = parts[i].x;
fin_yf = parts[i].y;
while (1)
{
mv -= ISTP;
fin_xf += dx;
fin_yf += dy;
fin_x = (int)(fin_xf+0.5f);
fin_y = (int)(fin_yf+0.5f);
if (mv <= 0.0f)
{
// nothing found
fin_xf = parts[i].x + parts[i].vx;
fin_yf = parts[i].y + parts[i].vy;
fin_x = (int)(fin_xf+0.5f);
fin_y = (int)(fin_yf+0.5f);
clear_xf = fin_xf-dx;
clear_yf = fin_yf-dy;
clear_x = (int)(clear_xf+0.5f);
clear_y = (int)(clear_yf+0.5f);
break;
}
if (fin_x<CELL || fin_y<CELL || fin_x>=XRES-CELL || fin_y>=YRES-CELL || pmap[fin_y][fin_x] || (bmap[fin_y/CELL][fin_x/CELL] && bmap[fin_y/CELL][fin_x/CELL]!=WL_STREAM))
{
// found an obstacle
clear_xf = fin_xf-dx;
clear_yf = fin_yf-dy;
clear_x = (int)(clear_xf+0.5f);
clear_y = (int)(clear_yf+0.5f);
break;
}
}
}
if ((t==PT_PHOT||t==PT_NEUT)) {
if (t == PT_PHOT) {
rt = pmap[fin_y][fin_x] & 0xFF;
lt = pmap[y][x] & 0xFF;
r = eval_move(PT_PHOT, fin_x, fin_y, NULL);
if (((rt==PT_GLAS && lt!=PT_GLAS) || (rt!=PT_GLAS && lt==PT_GLAS)) && r) {
if (!get_normal_interp(REFRACT|t, parts[i].x, parts[i].y, parts[i].vx, parts[i].vy, &nrx, &nry)) {
kill_part(i);
continue;
}
r = get_wavelength_bin(&parts[i].ctype);
if (r == -1) {
kill_part(i);
continue;
}
nn = GLASS_IOR - GLASS_DISP*(r-15)/15.0f;
nn *= nn;
nrx = -nrx;
nry = -nry;
if (rt==PT_GLAS && lt!=PT_GLAS)
nn = 1.0f/nn;
ct1 = parts[i].vx*nrx + parts[i].vy*nry;
ct2 = 1.0f - (nn*nn)*(1.0f-(ct1*ct1));
if (ct2 < 0.0f) {
// total internal reflection
parts[i].vx -= 2.0f*ct1*nrx;
parts[i].vy -= 2.0f*ct1*nry;
fin_xf = parts[i].x;
fin_yf = parts[i].y;
fin_x = x;
fin_y = y;
} else {
// refraction
ct2 = sqrtf(ct2);
ct2 = ct2 - nn*ct1;
parts[i].vx = nn*parts[i].vx + ct2*nrx;
parts[i].vy = nn*parts[i].vy + ct2*nry;
}
}
}
if (try_move(i, x, y, fin_x, fin_y)) {
parts[i].x = fin_xf;
parts[i].y = fin_yf;
} else {
// reflection
parts[i].flags |= FLAG_STAGNANT;
if (t==PT_NEUT && 100>(rand()%1000))
{
kill_part(i);
continue;
}
r = pmap[fin_y][fin_x];
// this should be replaced with a particle type attribute ("photwl" or something)
if ((r & 0xFF) == PT_PSCN) parts[i].ctype = 0x00000000;
if ((r & 0xFF) == PT_NSCN) parts[i].ctype = 0x00000000;
if ((r & 0xFF) == PT_SPRK) parts[i].ctype = 0x00000000;
if ((r & 0xFF) == PT_COAL) parts[i].ctype = 0x00000000;
if ((r & 0xFF) == PT_BCOL) parts[i].ctype = 0x00000000;
if ((r & 0xFF) == PT_PLEX) parts[i].ctype &= 0x1F00003E;
if ((r & 0xFF) == PT_NITR) parts[i].ctype &= 0x0007C000;
if ((r & 0xFF) == PT_NBLE) parts[i].ctype &= 0x3FFF8000;
if ((r & 0xFF) == PT_LAVA) parts[i].ctype &= 0x3FF00000;
if ((r & 0xFF) == PT_ACID) parts[i].ctype &= 0x1FE001FE;
if ((r & 0xFF) == PT_DUST) parts[i].ctype &= 0x3FFFFFC0;
if ((r & 0xFF) == PT_SNOW) parts[i].ctype &= 0x03FFFFFF;
if ((r & 0xFF) == PT_GOO) parts[i].ctype &= 0x3FFAAA00;
if ((r & 0xFF) == PT_PLNT) parts[i].ctype &= 0x0007C000;
if ((r & 0xFF) == PT_PLUT) parts[i].ctype &= 0x001FCE00;
if ((r & 0xFF) == PT_URAN) parts[i].ctype &= 0x003FC000;
if (get_normal_interp(t, parts[i].x, parts[i].y, parts[i].vx, parts[i].vy, &nrx, &nry)) {
dp = nrx*parts[i].vx + nry*parts[i].vy;
parts[i].vx -= 2.0f*dp*nrx;
parts[i].vy -= 2.0f*dp*nry;
fin_x = (int)(parts[i].x + parts[i].vx + 0.5f);
fin_y = (int)(parts[i].y + parts[i].vy + 0.5f);
// cast as int then back to float for compatibility with existing saves
if (try_move(i, x, y, fin_x, fin_y)) {
parts[i].x = (float)fin_x;
parts[i].y = (float)fin_y;
} else {
kill_part(i);
continue;
}
} else {
if (t!=PT_NEUT)
kill_part(i);
continue;
}
if (!parts[i].ctype&&t!=PT_NEUT) {
kill_part(i);
continue;
}
}
}
else if (ptypes[t].falldown==0)
{
// gasses and solids (but not powders)
if (try_move(i, x, y, fin_x, fin_y)) {
parts[i].x = fin_xf;
parts[i].y = fin_yf;
} else {
// TODO
if (fin_x>x+ISTP) fin_x=x+ISTP;
if (fin_x<x-ISTP) fin_x=x-ISTP;
if (fin_y>y+ISTP) fin_y=y+ISTP;
if (fin_y<y-ISTP) fin_y=y-ISTP;
if (try_move(i, x, y, 2*x-fin_x, fin_y))
{
parts[i].x = 0.25f+(float)(2*x-fin_x);
parts[i].y = 0.25f+fin_y;
parts[i].vx *= ptypes[t].collision;
}
else if (try_move(i, x, y, fin_x, 2*y-fin_y))
{
parts[i].x = 0.25f+fin_x;
parts[i].y = 0.25f+(float)(2*y-fin_y);
parts[i].vy *= ptypes[t].collision;
}
else
{
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
}
}
else
{
// liquids and powders
// TODO: rewrite to operate better with radial gravity
if (try_move(i, x, y, fin_x, fin_y)) {
parts[i].x = fin_xf;
parts[i].y = fin_yf;
} else {
if (fin_x!=x && try_move(i, x, y, fin_x, clear_y))
{
parts[i].x = fin_xf;
parts[i].y = clear_yf;
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
else if (fin_y!=y && try_move(i, x, y, clear_x, fin_y))
{
parts[i].x = clear_xf;
parts[i].y = fin_yf;
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
else
{
r = (rand()%2)*2-1;
if (fin_y!=clear_y && try_move(i, x, y, clear_x+r, fin_y))
{
parts[i].x = clear_xf+r;
parts[i].y = fin_yf;
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
else if (fin_y!=clear_y && try_move(i, x, y, clear_x-r, fin_y))
{
parts[i].x = clear_xf-r;
parts[i].y = fin_yf;
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
else if (fin_x!=clear_x && try_move(i, x, y, fin_x, clear_y+r))
{
parts[i].x = fin_xf;
parts[i].y = clear_yf+r;
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
else if (fin_x!=clear_x && try_move(i, x, y, fin_x, clear_y-r))
{
parts[i].x = fin_xf;
parts[i].y = clear_yf-r;
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
else if (ptypes[t].falldown>1 && (parts[i].vy>fabs(parts[i].vx) || gravityMode==2))
{
s = 0;
if (!rt || nt) //nt is if there is an something else besides the current particle type, around the particle
rt = 30;//slight less water lag, although it changes how it moves a lot
else
rt = 10;
for (j=clear_x+r; j>=0 && j>=clear_x-rt && j<clear_x+rt && j<XRES; j+=r)
{
if (try_move(i, x, y, j, fin_y))
{
parts[i].x = clear_xf+(j-clear_x);
parts[i].y = fin_yf;
nx = j;
ny = fin_y;
s = 1;
break;
}
if (try_move(i, x, y, j, clear_y))
{
parts[i].x = clear_xf+(j-clear_x);
nx = j;
s = 1;
break;
}
if ((pmap[y][j]&255)!=t || (bmap[y/CELL][j/CELL] && bmap[y/CELL][j/CELL]!=WL_STREAM))
break;
}
if (parts[i].vy>0)
r = 1;
else
r = -1;
if (s)
for (j=clear_y+r; j>=0 && j<YRES && j>=clear_y-rt && j<clear_y+rt; j+=r)
{
if (try_move(i, x, y, nx, j))
{
parts[i].y = clear_yf+(j-clear_y);
break;
}
if ((pmap[j][nx]&255)!=t || (bmap[j/CELL][nx/CELL] && bmap[j/CELL][nx/CELL]!=WL_STREAM))
{
s = 0;
break;
}
}
else if (clear_x!=x&&clear_y!=y && try_move(i, x, y, clear_x, clear_y)) {
// if interpolation was done and haven't yet moved, try moving to last clear position
parts[i].x = clear_xf;
parts[i].y = clear_yf;
}
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
if (!s)
parts[i].flags |= FLAG_STAGNANT;
}
else
{
if (clear_x!=x&&clear_y!=y && try_move(i, x, y, clear_x, clear_y)) {
// if interpolation was done, try moving to last clear position
parts[i].x = clear_xf;
parts[i].y = clear_yf;
}
parts[i].flags |= FLAG_STAGNANT;
parts[i].vx *= ptypes[t].collision;
parts[i].vy *= ptypes[t].collision;
}
}
}
}
nx = (int)(parts[i].x+0.5f);
ny = (int)(parts[i].y+0.5f);
if (nx<CELL || nx>=XRES-CELL || ny<CELL || ny>=YRES-CELL)
{
kill_part(i);
continue;
}
}
if (framerender) {
framerender = 0;
sys_pause = 1;
}
}
void update_particles(pixel *vid)
{
int i, j, x, y, t, nx, ny, r, cr,cg,cb, l = -1;
float lx, ly;
#ifdef MT
int pt = 0, pc = 0;
pthread_t *InterThreads;
#endif
isplayer = 0; //Needed for player spawning
isplayer2 = 0;
memset(pmap, 0, sizeof(pmap));
memset(photons, 0, sizeof(photons));
r = rand()%2;
NUM_PARTS = 0;
for (j=0; j<NPART; j++)
{
i = r ? (NPART-1-j) : j;
if (parts[i].type)
{
t = parts[i].type;
x = (int)(parts[i].x+0.5f);
y = (int)(parts[i].y+0.5f);
if (x>=0 && y>=0 && x<XRES && y<YRES && t!=PT_PHOT) {
if (t!=PT_NEUT || (pmap[y][x]&0xFF)!=PT_GLAS)
pmap[y][x] = t|(i<<8);
}
if (t==PT_PHOT)
photons[y][x] = t|(i<<8);
NUM_PARTS ++;
}
else
{
parts[i].life = l;
l = i;
}
}
pfree=l;
if (cmode==CM_BLOB)
{
for (y=0; y<YRES/CELL; y++)
{
for (x=0; x<XRES/CELL; x++)
{
if (bmap[y][x]==WL_WALL)
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
{
pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x80, 0x80, 0x80);
}
if (bmap[y][x]==WL_DESTROYALL)
for (j=0; j<CELL; j+=2)
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x80, 0x80, 0x80);
}
if (bmap[y][x]==WL_ALLOWLIQUID)
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
if (!((y*CELL+j)%2) && !((x*CELL+i)%2))
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xC0C0C0);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0xC0, 0xC0, 0xC0);
}
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_FAN)
for (j=0; j<CELL; j+=2)
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x8080FF);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x80, 0x80, 0xFF);
}
if (bmap[y][x]==WL_DETECT)
{
for (j=0; j<CELL; j+=2)
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xFF8080);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0xFF, 0x80, 0x80);
}
if (emap[y][x])
{
cr = 255;
cg = 32;
cb = 8;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_EWALL)
{
if (emap[y][x])
{
cr = cg = cb = 128;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
if (i&j&1)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x80, 0x80, 0x80);
}
}
else
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
if (!(i&j&1))
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x80, 0x80, 0x80);
}
}
}
if (bmap[y][x]==WL_WALLELEC)
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
{
pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
if (!((y*CELL+j)%2) && !((x*CELL+i)%2))
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xC0C0C0);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0xC0, 0xC0, 0xC0);
}
else
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x80, 0x80, 0x80);
}
}
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_ALLOWALLELEC)
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
{
//pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
if (!((y*CELL+j)%2) && !((x*CELL+i)%2))
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xFFFF22);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0xFF, 0xFF, 0x22);
}
}
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_ALLOWGAS)
{
for (j=0; j<CELL; j+=2)
{
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x579777);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x57, 0x97, 0x77);
}
}
}
if (bmap[y][x]==WL_ALLOWAIR)
{
for (j=0; j<CELL; j+=2)
{
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x3C3C3C);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x3C, 0x3C, 0x3C);
}
}
}
if (bmap[y][x]==WL_ALLOWSOLID)
{
for (j=0; j<CELL; j+=2)
{
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x575757);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x57, 0x57, 0x57);
}
}
}
if (bmap[y][x]==WL_EHOLE)
{
if (emap[y][x])
{
for (j=0; j<CELL; j++)
{
for (i=(j)&1; i<CELL; i++)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x242424);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x24, 0x24, 0x24);
}
}
for (j=0; j<CELL; j+=2)
{
for (i=(j)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x000000);
}
}
}
else
{
for (j=0; j<CELL; j+=2)
{
for (i=(j)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x242424);
drawblob(vid, (x*CELL+i), (y*CELL+j), 0x24, 0x24, 0x24);
}
}
}
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (emap[y][x] && (!sys_pause||framerender))
emap[y][x] --;
}
}
}
else
{
for (y=0; y<YRES/CELL; y++)
{
for (x=0; x<XRES/CELL; x++)
{
if (bmap[y][x]==WL_WALL)
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
{
pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
}
if (bmap[y][x]==WL_DESTROYALL)
for (j=0; j<CELL; j+=2)
for (i=(j>>1)&1; i<CELL; i+=2)
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
if (bmap[y][x]==WL_ALLOWLIQUID)
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
if (!((y*CELL+j)%2) && !((x*CELL+i)%2))
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xC0C0C0);
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_FAN)
for (j=0; j<CELL; j+=2)
for (i=(j>>1)&1; i<CELL; i+=2)
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x8080FF);
if (bmap[y][x]==WL_DETECT)
{
for (j=0; j<CELL; j+=2)
for (i=(j>>1)&1; i<CELL; i+=2)
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xFF8080);
if (emap[y][x])
{
cr = 255;
cg = 32;
cb = 8;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_EWALL)
{
if (emap[y][x])
{
cr = cg = cb = 128;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
if (i&j&1)
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
}
else
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
if (!(i&j&1))
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
}
}
if (bmap[y][x]==WL_WALLELEC)
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
{
pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
if (!((y*CELL+j)%2) && !((x*CELL+i)%2))
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xC0C0C0);
else
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x808080);
}
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_ALLOWALLELEC)
{
for (j=0; j<CELL; j++)
for (i=0; i<CELL; i++)
{
//pmap[y*CELL+j][x*CELL+i] = 0x7FFFFFFF;
if (!((y*CELL+j)%2) && !((x*CELL+i)%2))
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0xFFFF22);
}
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (bmap[y][x]==WL_ALLOWAIR)
{
for (j=0; j<CELL; j+=2)
{
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x3C3C3C);
}
}
}
if (bmap[y][x]==WL_ALLOWGAS)
{
for (j=0; j<CELL; j+=2)
{
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x579777);
}
}
}
if (bmap[y][x]==WL_ALLOWSOLID)
{
for (j=0; j<CELL; j+=2)
{
for (i=(j>>1)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x575757);
}
}
}
if (bmap[y][x]==WL_EHOLE)
{
if (emap[y][x])
{
for (j=0; j<CELL; j++)
{
for (i=(j)&1; i<CELL; i++)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x242424);
}
}
for (j=0; j<CELL; j+=2)
{
for (i=(j)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x000000);
}
}
}
else
{
for (j=0; j<CELL; j+=2)
{
for (i=(j)&1; i<CELL; i+=2)
{
vid[(y*CELL+j)*(XRES+BARSIZE)+(x*CELL+i)] = PIXPACK(0x242424);
}
}
}
if (emap[y][x])
{
cr = cg = cb = 16;
cr += fire_r[y][x];
if (cr > 255) cr = 255;
fire_r[y][x] = cr;
cg += fire_g[y][x];
if (cg > 255) cg = 255;
fire_g[y][x] = cg;
cb += fire_b[y][x];
if (cb > 255) cb = 255;
fire_b[y][x] = cb;
}
}
if (emap[y][x] && (!sys_pause||framerender))
emap[y][x] --;
}
}
}
update_particles_i(vid, 0, 1);
for (y=0; y<YRES/CELL; y++)
for (x=0; x<XRES/CELL; x++)
if (bmap[y][x]==WL_STREAM)
{
lx = x*CELL + CELL*0.5f;
ly = y*CELL + CELL*0.5f;
for (t=0; t<1024; t++)
{
nx = (int)(lx+0.5f);
ny = (int)(ly+0.5f);
if (nx<0 || nx>=XRES || ny<0 || ny>=YRES)
break;
addpixel(vid, nx, ny, 255, 255, 255, 64);
i = nx/CELL;
j = ny/CELL;
lx += vx[j][i]*0.125f;
ly += vy[j][i]*0.125f;
if (bmap[j][i]==WL_STREAM && i!=x && j!=y)
break;
}
drawtext(vid, x*CELL, y*CELL-2, "\x8D", 255, 255, 255, 128);
}
}
void rotate_area(int area_x, int area_y, int area_w, int area_h, int invert)
{
//TODO: MSCC doesn't like arrays who's size is determined at runtime.
#if !(defined(WIN32) && !defined(__GNUC__))
int cx = 0;
int cy = 0;
unsigned tpmap[area_h][area_w];
unsigned rtpmap[area_w][area_h];
unsigned char tbmap[area_h/CELL][area_w/CELL];
unsigned char rtbmap[area_w/CELL][area_h/CELL];
float tfvy[area_h/CELL][area_w/CELL];
float tfvx[area_h/CELL][area_w/CELL];
for (cy=0; cy<area_h; cy++)
{
for (cx=0; cx<area_w; cx++)//save walls to temp
{
if (area_x + cx<XRES&&area_y + cy<YRES)
{
if (bmap[(cy+area_y)/CELL][(cx+area_x)/CELL]) {
tbmap[cy/CELL][cx/CELL] = bmap[(cy+area_y)/CELL][(cx+area_x)/CELL];
if (bmap[(cy+area_y)/CELL][(cx+area_x)/CELL]==WL_FAN) {
tfvx[cy/CELL][cx/CELL] = fvx[(cy+area_y)/CELL][(cx+area_x)/CELL];
tfvy[cy/CELL][cx/CELL] = fvy[(cy+area_y)/CELL][(cx+area_x)/CELL];
}
} else {
tbmap[cy/CELL][cx/CELL] = 0;
tfvx[cy/CELL][cx/CELL] = 0;
tfvy[cy/CELL][cx/CELL] = 0;
}
}
}
}
for (cy=0; cy<area_h; cy++)
{
for (cx=0; cx<area_w; cx++)//save particles to temp
{
if ((area_x + cx<XRES&&area_y + cy<YRES))
{
tpmap[cy][cx] = pmap[(int)(cy+area_y+0.5f)][(int)(cx+area_x+0.5f)];
}
else
tpmap[(int)(cy+0.5f)][(int)(cx+0.5f)] = 0;
}
}
for (cy=0; cy<area_w; cy++)
{
for (cx=0; cx<area_h; cx++)//rotate temp arrays
{
if (invert)
{
rtbmap[cy/CELL][((area_h-1)-cx)/CELL] = tbmap[cy/CELL][cx/CELL];
rtpmap[cy][(area_h-1)-cx] = tpmap[(int)(cy+0.5f)][(int)(cx+0.5f)];
tfvx[cy/CELL][((area_h-1)-cx)/CELL] = -tfvx[cy/CELL][cx/CELL];
tfvy[cy/CELL][((area_h-1)-cx)/CELL] = tfvy[cy/CELL][cx/CELL];
}
else
{
rtbmap[((area_h-1)-cx)/CELL][cy/CELL] = tbmap[cy/CELL][cx/CELL];
rtpmap[(area_h-1)-cx][cy] = tpmap[(int)(cy+0.5f)][(int)(cx+0.5f)];
tfvy[((area_h-1)-cx)/CELL][cy/CELL] = -tfvx[cy/CELL][cx/CELL];
tfvx[((area_h-1)-cx)/CELL][cy/CELL] = tfvy[cy/CELL][cx/CELL];
}
}
}
for (cy=0; cy<area_w; cy++)
{
for (cx=0; cx<area_h; cx++)//move particles and walls
{
if (area_x + cx<XRES&&area_y + cy<YRES)
{
if ((rtpmap[cy][cx]>>8)<=NPART&&rtpmap[cy][cx])
{
parts[rtpmap[(int)(cy+0.5f)][(int)(cx+0.5f)]>>8].x = area_x +cx;
parts[rtpmap[(int)(cy+0.5f)][(int)(cx+0.5f)]>>8].y = area_y +cy;
}
bmap[(area_y+cy)/CELL][(area_x+cx)/CELL] = rtbmap[cy/CELL][cx/CELL];
fvy[(area_y+cy)/CELL][(area_x+cx)/CELL] = tfvy[cy/CELL][cx/CELL];
fvx[(area_y+cy)/CELL][(area_x+cx)/CELL] = tfvx[cy/CELL][cx/CELL];
}
}
}
#endif
}
void clear_area(int area_x, int area_y, int area_w, int area_h)
{
int cx = 0;
int cy = 0;
for (cy=0; cy<area_h; cy++)
{
for (cx=0; cx<area_w; cx++)
{
bmap[(cy+area_y)/CELL][(cx+area_x)/CELL] = 0;
delete_part(cx+area_x, cy+area_y);
}
}
}
void create_box(int x1, int y1, int x2, int y2, int c)
{
int i, j;
if (x1>x2)
{
i = x2;
x2 = x1;
x1 = i;
}
if (y1>y2)
{
j = y2;
y2 = y1;
y1 = j;
}
for (j=y1; j<=y2; j++)
for (i=x1; i<=x2; i++)
create_parts(i, j, 1, 1, c);
}
int flood_parts(int x, int y, int c, int cm, int bm)
{
int x1, x2, dy = (c<PT_NUM)?1:CELL;
int co = c, wall;
if (cm==PT_INST&&co==PT_SPRK)
if ((pmap[y][x]&0xFF)==PT_SPRK)
return 0;
if (c>=UI_WALLSTART&&c<=UI_WALLSTART+UI_WALLCOUNT)
{
wall = c-100;
}
if (cm==-1)
{
if (c==0)
{
cm = pmap[y][x]&0xFF;
if (!cm)
return 0;
if (REPLACE_MODE && cm!=SLALT)
return 0;
}
else
cm = 0;
}
if (bm==-1)
{
if (wall==WL_ERASE)
{
bm = bmap[y/CELL][x/CELL];
if (!bm)
return 0;
if (bm==WL_WALL)
cm = 0xFF;
}
else
bm = 0;
}
if (((pmap[y][x]&0xFF)!=cm || bmap[y/CELL][x/CELL]!=bm )||( (sdl_mod & (KMOD_CAPS)) && cm!=SLALT))
return 1;
// go left as far as possible
x1 = x2 = x;
while (x1>=CELL)
{
if ((pmap[y][x1-1]&0xFF)!=cm || bmap[y/CELL][(x1-1)/CELL]!=bm)
{
break;
}
x1--;
}
while (x2<XRES-CELL)
{
if ((pmap[y][x2+1]&0xFF)!=cm || bmap[y/CELL][(x2+1)/CELL]!=bm)
{
break;
}
x2++;
}
// fill span
for (x=x1; x<=x2; x++)
{
if (!create_parts(x, y, 0, 0, co))
return 0;
}
// fill children
if (cm==PT_INST&&co==PT_SPRK)//wire crossing for INST
{
if (y>=CELL+dy && x1==x2 &&
((pmap[y-1][x1-1]&0xFF)==PT_INST||(pmap[y-1][x1-1]&0xFF)==PT_SPRK) && ((pmap[y-1][x1]&0xFF)==PT_INST||(pmap[y-1][x1]&0xFF)==PT_SPRK) && ((pmap[y-1][x1+1]&0xFF)==PT_INST || (pmap[y-1][x1+1]&0xFF)==PT_SPRK) &&
(pmap[y-2][x1-1]&0xFF)!=PT_INST && ((pmap[y-2][x1]&0xFF)==PT_INST ||(pmap[y-2][x1]&0xFF)==PT_SPRK) && (pmap[y-2][x1+1]&0xFF)!=PT_INST)
flood_parts(x1, y-2, co, cm, bm);
else if (y>=CELL+dy)
for (x=x1; x<=x2; x++)
if ((pmap[y-1][x]&0xFF)!=PT_SPRK)
{
if (x==x1 || x==x2 || y>=YRES-CELL-1 ||
(pmap[y-1][x-1]&0xFF)==PT_INST || (pmap[y-1][x+1]&0xFF)==PT_INST ||
(pmap[y+1][x-1]&0xFF)==PT_INST || ((pmap[y+1][x]&0xFF)!=PT_INST&&(pmap[y+1][x]&0xFF)!=PT_SPRK) || (pmap[y+1][x+1]&0xFF)==PT_INST)
flood_parts(x, y-dy, co, cm, bm);
}
if (y<YRES-CELL-dy && x1==x2 &&
((pmap[y+1][x1-1]&0xFF)==PT_INST||(pmap[y+1][x1-1]&0xFF)==PT_SPRK) && ((pmap[y+1][x1]&0xFF)==PT_INST||(pmap[y+1][x1]&0xFF)==PT_SPRK) && ((pmap[y+1][x1+1]&0xFF)==PT_INST || (pmap[y+1][x1+1]&0xFF)==PT_SPRK) &&
(pmap[y+2][x1-1]&0xFF)!=PT_INST && ((pmap[y+2][x1]&0xFF)==PT_INST ||(pmap[y+2][x1]&0xFF)==PT_SPRK) && (pmap[y+2][x1+1]&0xFF)!=PT_INST)
flood_parts(x1, y+2, co, cm, bm);
else if (y<YRES-CELL-dy)
for (x=x1; x<=x2; x++)
if ((pmap[y+1][x]&0xFF)!=PT_SPRK)
{
if (x==x1 || x==x2 || y<0 ||
(pmap[y+1][x-1]&0xFF)==PT_INST || (pmap[y+1][x+1]&0xFF)==PT_INST ||
(pmap[y-1][x-1]&0xFF)==PT_INST || ((pmap[y-1][x]&0xFF)!=PT_INST&&(pmap[y-1][x]&0xFF)!=PT_SPRK) || (pmap[y-1][x+1]&0xFF)==PT_INST)
flood_parts(x, y+dy, co, cm, bm);
}
}
else
{
if (y>=CELL+dy)
for (x=x1; x<=x2; x++)
if ((pmap[y-dy][x]&0xFF)==cm && bmap[(y-dy)/CELL][x/CELL]==bm)
if (!flood_parts(x, y-dy, co, cm, bm))
return 0;
if (y<YRES-CELL-dy)
for (x=x1; x<=x2; x++)
if ((pmap[y+dy][x]&0xFF)==cm && bmap[(y+dy)/CELL][x/CELL]==bm)
if (!flood_parts(x, y+dy, co, cm, bm))
return 0;
}
if (!(cm==PT_INST&&co==PT_SPRK))
return 1;
}
int create_parts(int x, int y, int rx, int ry, int c)
{
int i, j, r, f = 0, u, v, oy, ox, b = 0, dw = 0, stemp = 0;//n;
int wall = c - 100;
for (r=UI_ACTUALSTART; r<=UI_ACTUALSTART+UI_WALLCOUNT; r++)
{
if (wall==r)
{
if (c == SPC_AIR || c == SPC_HEAT || c == SPC_COOL || c == SPC_VACUUM)
break;
if (wall == WL_ERASE)
b = 0;
else
b = wall;
dw = 1;
}
}
if (c == WL_FANHELPER)
{
b = WL_FANHELPER;
dw = 1;
}
if (dw==1)
{
rx = rx/CELL;
x = x/CELL;
y = y/CELL;
x -= rx/2;
y -= rx/2;
for (ox=x; ox<=x+rx; ox++)
{
for (oy=y; oy<=y+rx; oy++)
{
if (ox>=0&&ox<XRES/CELL&&oy>=0&&oy<YRES/CELL)
{
i = ox;
j = oy;
if (((sdl_mod & (KMOD_LALT) && sdl_mod & (KMOD_SHIFT))|| sdl_mod & (KMOD_CAPS) ))
{
if (bmap[j][i]==SLALT-100)
b = 0;
else
continue;
}
if (b==WL_FAN)
{
fvx[j][i] = 0.0f;
fvy[j][i] = 0.0f;
}
if (b==WL_STREAM)
{
i = x + rx/2;
j = y + rx/2;
for (v=-1; v<2; v++)
for (u=-1; u<2; u++)
if (i+u>=0 && i+u<XRES/CELL &&
j+v>=0 && j+v<YRES/CELL &&
bmap[j+v][i+u] == WL_STREAM)
return 1;
bmap[j][i] = WL_STREAM;
continue;
}
bmap[j][i] = b;
}
}
}
return 1;
}
if (((sdl_mod & (KMOD_LALT) && sdl_mod & (KMOD_SHIFT))|| sdl_mod & (KMOD_CAPS) )&& !REPLACE_MODE)
{
if (rx==0&&ry==0)
{
delete_part(x, y);
}
else
for (j=-ry; j<=ry; j++)
for (i=-rx; i<=rx; i++)
if ((CURRENT_BRUSH==CIRCLE_BRUSH && (pow(i,2))/(pow(rx,2))+(pow(j,2))/(pow(ry,2))<=1)||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=ry*rx))
delete_part(x+i, y+j);
return 1;
}
if (c == SPC_AIR || c == SPC_HEAT || c == SPC_COOL || c == SPC_VACUUM)
{
if (rx==0&&ry==0)
{
create_part(-2, x, y, c);
}
else
for (j=-ry; j<=ry; j++)
for (i=-rx; i<=rx; i++)
if ((CURRENT_BRUSH==CIRCLE_BRUSH && (pow(i,2))/(pow(rx,2))+(pow(j,2))/(pow(ry,2))<=1)||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=ry*rx))
if (!REPLACE_MODE)
create_part(-2, x+i, y+j, c);
else if ((pmap[y+j][x+i]&0xFF)==SLALT&&SLALT!=0)
create_part(-2, x+i, y+j, c);
return 1;
}
if (c == 0 && !REPLACE_MODE)
{
stemp = SLALT;
SLALT = 0;
if (rx==0&&ry==0)
{
delete_part(x, y);
}
else
for (j=-ry; j<=ry; j++)
for (i=-rx; i<=rx; i++)
if ((CURRENT_BRUSH==CIRCLE_BRUSH && (pow(i,2))/(pow(rx,2))+(pow(j,2))/(pow(ry,2))<=1)||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=ry*rx))
delete_part(x+i, y+j);
SLALT = stemp;
return 1;
}
if (REPLACE_MODE)
{
if (rx==0&&ry==0)
{
if ((pmap[y][x]&0xFF)==SLALT || SLALT==0)
{
if ((pmap[y][x]))
{
delete_part(x, y);
if (c!=0)
create_part(-2, x, y, c);
}
}
}
else
for (j=-ry; j<=ry; j++)
for (i=-rx; i<=rx; i++)
if ((CURRENT_BRUSH==CIRCLE_BRUSH && (pow(i,2))/(pow(rx,2))+(pow(j,2))/(pow(ry,2))<=1)||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=ry*rx))
{
if ((pmap[y+j][x+i]&0xFF)!=SLALT&&SLALT!=0)
continue;
if ((pmap[y+j][x+i]))
{
delete_part(x+i, y+j);
if (c!=0)
create_part(-2, x+i, y+j, c);
}
}
return 1;
}
if (rx==0&&ry==0)//workaround for 1pixel brush/floodfill crashing. todo: find a better fix later.
{
if (create_part(-2, x, y, c)==-1)
f = 1;
}
else
for (j=-ry; j<=ry; j++)
for (i=-rx; i<=rx; i++)
if ((CURRENT_BRUSH==CIRCLE_BRUSH && (pow(i,2))/(pow(rx,2))+(pow(j,2))/(pow(ry,2))<=1)||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=ry*rx))
if (create_part(-2, x+i, y+j, c)==-1)
f = 1;
return !f;
}
void create_line(int x1, int y1, int x2, int y2, int rx, int ry, int c)
{
int cp=abs(y2-y1)>abs(x2-x1), x, y, dx, dy, sy;
float e, de;
if (cp)
{
y = x1;
x1 = y1;
y1 = y;
y = x2;
x2 = y2;
y2 = y;
}
if (x1 > x2)
{
y = x1;
x1 = x2;
x2 = y;
y = y1;
y1 = y2;
y2 = y;
}
dx = x2 - x1;
dy = abs(y2 - y1);
e = 0.0f;
if (dx)
de = dy/(float)dx;
else
de = 0.0f;
y = y1;
sy = (y1<y2) ? 1 : -1;
for (x=x1; x<=x2; x++)
{
if (cp)
create_parts(y, x, rx, ry, c);
else
create_parts(x, y, rx, ry, c);
e += de;
if (e >= 0.5f)
{
y += sy;
if (c==WL_EHOLE || c==WL_ALLOWGAS || c==WL_ALLOWALLELEC || c==WL_ALLOWSOLID || c==WL_ALLOWAIR || c==WL_WALL || c==WL_DESTROYALL || c==WL_ALLOWLIQUID || c==WL_FAN || c==WL_STREAM || c==WL_DETECT || c==WL_EWALL || c==WL_WALLELEC || !(rx+ry))
{
if (cp)
create_parts(y, x, rx, ry, c);
else
create_parts(x, y, rx, ry, c);
}
e -= 1.0f;
}
}
}