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Fix major update_particles_i bug, do_move was being called on nonexistant particles, causing kill_part to kill another particle

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This commit is contained in:
Jacob1 2012-03-14 19:46:56 -04:00
parent 8db6230414
commit 96ec3486e8
1 changed files with 18 additions and 33 deletions
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51
src/powder.c
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@ -318,43 +318,17 @@ int try_move(int i, int x, int y, int nx, int ny)
if (parts[i].type==PT_NEUT && (ptypes[r&0xFF].properties&PROP_NEUTABSORB))
{
parts[i].type=PT_NONE;
kill_part(i);
return 0;
}
if ((r&0xFF)==PT_VOID || (r&0xFF)==PT_PVOD) //this is where void eats particles
{
if (parts[i].type == PT_STKM)
{
player.spwn = 0;
}
if (parts[i].type == PT_STKM2)
{
player2.spwn = 0;
}
if (parts[i].type == PT_FIGH)
{
fighters[(unsigned char)parts[i].tmp].spwn = 0;
fighcount--;
}
parts[i].type=PT_NONE;
kill_part(i);
return 0;
}
if ((r&0xFF)==PT_BHOL || (r&0xFF)==PT_NBHL) //this is where blackhole eats particles
{
if (parts[i].type == PT_STKM)
{
player.spwn = 0;
}
if (parts[i].type == PT_STKM2)
{
player2.spwn = 0;
}
if (parts[i].type == PT_FIGH)
{
fighters[(unsigned char)parts[i].tmp].spwn = 0;
fighcount--;
}
parts[i].type=PT_NONE;
kill_part(i);
if (!legacy_enable)
{
parts[r>>8].temp = restrict_flt(parts[r>>8].temp+parts[i].temp/2, MIN_TEMP, MAX_TEMP);//3.0f;
@ -364,7 +338,7 @@ int try_move(int i, int x, int y, int nx, int ny)
}
if (((r&0xFF)==PT_WHOL||(r&0xFF)==PT_NWHL) && parts[i].type==PT_ANAR) //whitehole eats anar
{
parts[i].type=PT_NONE;
kill_part(i);
if (!legacy_enable)
{
parts[r>>8].temp = restrict_flt(parts[r>>8].temp- (MAX_TEMP-parts[i].temp)/2, MIN_TEMP, MAX_TEMP);
@ -415,8 +389,10 @@ int try_move(int i, int x, int y, int nx, int ny)
// try to move particle, and if successful update pmap and parts[i].x,y
int do_move(int i, int x, int y, float nxf, float nyf)
{
int nx = (int)(nxf+0.5f), ny = (int)(nyf+0.5f);
int result = try_move(i, x, y, nx, ny);
int nx = (int)(nxf+0.5f), ny = (int)(nyf+0.5f), result;
if (parts[i].type == PT_NONE)
return 0;
result = try_move(i, x, y, nx, ny);
if (result)
{
int t = parts[i].type;
@ -613,6 +589,9 @@ void kill_part(int i)//kills particle number i
{
int x, y;
if (parts[i].type == PT_NONE) //This shouldn't happen anymore, but it's here just in case
return;
x = (int)(parts[i].x+0.5f);
y = (int)(parts[i].y+0.5f);
if (parts[i].type == PT_STKM)
@ -2284,13 +2263,15 @@ killed:
if (stagnant)//FLAG_STAGNANT set, was reflected on previous frame
{
// cast coords as int then back to float for compatibility with existing saves
if (!do_move(i, x, y, (float)fin_x, (float)fin_y)) {
if (!do_move(i, x, y, (float)fin_x, (float)fin_y) && parts[i].type) {
kill_part(i);
continue;
}
}
else if (!do_move(i, x, y, fin_xf, fin_yf))
{
if (parts[i].type == PT_NONE)
continue;
// reflection
parts[i].flags |= FLAG_STAGNANT;
if (t==PT_NEUT && 100>(rand()%1000))
@ -2350,6 +2331,8 @@ killed:
// gasses and solids (but not powders)
if (!do_move(i, x, y, fin_xf, fin_yf))
{
if (parts[i].type == PT_NONE)
continue;
// can't move there, so bounce off
// TODO
if (fin_x>x+ISTP) fin_x=x+ISTP;
@ -2381,6 +2364,8 @@ killed:
// liquids and powders
if (!do_move(i, x, y, fin_xf, fin_yf))
{
if (parts[i].type == PT_NONE)
continue;
if (fin_x!=x && do_move(i, x, y, fin_xf, clear_yf))
{
parts[i].vx *= ptypes[t].collision;