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Ambient heat (disabled by default)

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This commit is contained in:
Simon Robertshaw 2011-06-01 20:18:19 +01:00
parent 3d600c6955
commit c003fee63e
6 changed files with 89 additions and 5 deletions
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4
includes/air.h
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@ -21,10 +21,14 @@ extern float cb_pv[YRES/CELL][XRES/CELL], cb_opv[YRES/CELL][XRES/CELL];
extern float fvx[YRES/CELL][XRES/CELL], fvy[YRES/CELL][XRES/CELL];
extern float hv[YRES/CELL][XRES/CELL], ohv[YRES/CELL][XRES/CELL]; // Ambient Heat
extern float kernel[9];
void make_kernel(void);
void update_airh(void);
void update_grav(void);
void update_air(void);

2
includes/defines.h
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@ -79,6 +79,7 @@ extern unsigned char ZSIZE;
#define SQUARE_BRUSH 1
#define BRUSH_NUM 2
//#define LUACONSOLE
//#define PYCONSOLE
//#define PYEXT
//no longer needed
@ -126,6 +127,7 @@ extern int legacy_enable;
extern int ngrav_enable; //Newtonian gravity
extern int sound_enable;
extern int kiosk_enable;
extern int aheat_enable;
extern int decorations_enable;
extern int sys_pause;

51
src/air.c
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@ -23,6 +23,8 @@ float cb_pv[YRES/CELL][XRES/CELL], cb_opv[YRES/CELL][XRES/CELL];
float fvx[YRES/CELL][XRES/CELL], fvy[YRES/CELL][XRES/CELL];
float hv[YRES/CELL][XRES/CELL], ohv[YRES/CELL][XRES/CELL]; // For Ambient Heat
void make_kernel(void) //used for velocity
{
int i, j;
@ -38,6 +40,55 @@ void make_kernel(void) //used for velocity
for (i=-1; i<2; i++)
kernel[(i+1)+3*(j+1)] *= s;
}
void update_airh(void)
{
int x, y, i, j;
float dh, dp, f, tx, ty;
for (i=0; i<YRES/CELL; i++) //reduces pressure/velocity on the edges every frame
{
hv[i][0] = 295.15f;
hv[i][1] = 295.15f;
hv[i][XRES/CELL-3] = 295.15f;
hv[i][XRES/CELL-2] = 295.15f;
hv[i][XRES/CELL-1] = 295.15f;
}
for (i=0; i<XRES/CELL; i++) //reduces pressure/velocity on the edges every frame
{
hv[0][i] = 295.15f;
hv[1][i] = 295.15f;
hv[YRES/CELL-3][i] = 295.15f;
hv[YRES/CELL-2][i] = 295.15f;
hv[YRES/CELL-1][i] = 295.15f;
}
for (y=0; y<YRES/CELL; y++) //update velocity and pressure
for (x=0; x<XRES/CELL; x++)
{
dh = 0.0f;
for (j=-1; j<2; j++)
for (i=-1; i<2; i++)
if (y+j>0 && y+j<YRES/CELL-2 &&
x+i>0 && x+i<XRES/CELL-2 &&
bmap[y+j][x+i]!=WL_WALL &&
bmap[y+j][x+i]!=WL_WALLELEC &&
(bmap[y+j][x+i]!=WL_EWALL || emap[y+j][x+i]))
{
f = kernel[i+1+(j+1)*3];
dh += hv[y+j][x+i]*f;
}
else
{
f = kernel[i+1+(j+1)*3];
dh += hv[y][x]*f;
}
i = (int)tx;
j = (int)ty;
tx -= i;
ty -= j;
ohv[y][x] = dh;
}
memcpy(hv, ohv, sizeof(hv));
}
void update_grav(void)
{
int x, y, i, j, changed = 0;

9
src/graphics.c
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@ -1237,6 +1237,15 @@ void draw_air(pixel *vid)
clamp_flt(pv[y][x], 0.0f, 8.0f),//pressure adds green
clamp_flt(fabsf(vy[y][x]), 0.0f, 8.0f));//vy adds blue
}
else if (cmode == CM_HEAT && aheat_enable)
{
float ttemp = hv[y][x]+(-MIN_TEMP);
int caddress = restrict_flt((int)( restrict_flt(ttemp, 0.0f, MAX_TEMP+(-MIN_TEMP)) / ((MAX_TEMP+(-MIN_TEMP))/1024) ) *3, 0.0f, (1024.0f*3)-3);
c = PIXRGB((unsigned char)color_data[caddress], (unsigned char)color_data[caddress+1], (unsigned char)color_data[caddress+2]);
//c = PIXRGB(clamp_flt(fabsf(vx[y][x]), 0.0f, 8.0f),//vx adds red
// clamp_flt(hv[y][x], 0.0f, 1600.0f),//heat adds green
// clamp_flt(fabsf(vy[y][x]), 0.0f, 8.0f));//vy adds blue
}
else if (cmode == CM_CRACK)
{
int r;

7
src/main.c
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@ -176,6 +176,7 @@ int sys_pause = 0;
int sys_shortcuts = 1;
int legacy_enable = 0; //Used to disable new features such as heat, will be set by save.
int ngrav_enable = 0; //Newtonian gravity, will be set by save
int aheat_enable; //Ambient heat
int decorations_enable = 1;
int death = 0, framerender = 0;
int amd = 1;
@ -1747,11 +1748,13 @@ int main(int argc, char *argv[])
if (!sys_pause||framerender) //only update air if not paused
{
update_air();
if(aheat_enable)
update_airh();
}
#ifdef OpenGL
ClearScreen();
#else
if (cmode==CM_VEL || cmode==CM_PRESS || cmode==CM_CRACK)//air only gets drawn in these modes
if (cmode==CM_VEL || cmode==CM_PRESS || cmode==CM_CRACK || (cmode==CM_HEAT && aheat_enable))//air only gets drawn in these modes
{
draw_air(vid_buf);
}
@ -2277,6 +2280,8 @@ int main(int argc, char *argv[])
VINE_MODE = !VINE_MODE;
if (sdl_key==SDLK_SPACE)
sys_pause = !sys_pause;
if (sdl_key=='u')
aheat_enable = !aheat_enable;
if (sdl_key=='h')
hud_enable = !hud_enable;
if (sdl_key=='p')

13
src/powder.c
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@ -1614,6 +1614,19 @@ void update_particles_i(pixel *vid, int start, int inc)
h_count = 0;
if (t&&(t!=PT_HSWC||parts[i].life==10)&&ptypes[t].hconduct>(rand()%250))
{
if (aheat_enable)
{
if (hv[y/CELL][x/CELL] < parts[i].temp)
{
hv[y/CELL][x/CELL] = hv[y/CELL][x/CELL] + parts[i].temp*0.04;
parts[i].temp = parts[i].temp - hv[y/CELL][x/CELL]*0.04;
}
else
{
hv[y/CELL][x/CELL] = hv[y/CELL][x/CELL] - parts[i].temp*0.04;
parts[i].temp = parts[i].temp + hv[y/CELL][x/CELL]*0.04;
}
}
for (j=0; j<8; j++)
{
surround_hconduct[j] = i;