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Fix oob accesses when e.g. shooting tile -1. (can propagate via WEAPONx_SHOOTS)

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Ideally, we would also warn when setting WEAPONx_SHOOTS to negative values, but
we'd have to intercept CON's setvar's and it wouldn't be pretty.

git-svn-id: https://svn.eduke32.com/eduke32@2268 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-01-19 21:58:23 +00:00
parent a61052f807
commit ca2d612976
3 changed files with 25 additions and 21 deletions
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3
polymer/eduke32/source/game.h
View file

@ -334,7 +334,8 @@ extern char forcegl;
#define gametextpal(x,y,t,s,p) G_PrintGameText(0,STARTALPHANUM, x,y,t,s,p,26,0, 0, xdim-1, ydim-1, 65536) #define gametextpal(x,y,t,s,p) G_PrintGameText(0,STARTALPHANUM, x,y,t,s,p,26,0, 0, xdim-1, ydim-1, 65536)
#define gametextpalbits(x,y,t,s,p,dabits) G_PrintGameText(0,STARTALPHANUM, x,y,t,s,p,dabits,0, 0, xdim-1, ydim-1, 65536) #define gametextpalbits(x,y,t,s,p,dabits) G_PrintGameText(0,STARTALPHANUM, x,y,t,s,p,dabits,0, 0, xdim-1, ydim-1, 65536)
#define A_CheckSpriteFlags(iActor, iType) (((SpriteFlags[sprite[iActor].picnum]^actor[iActor].flags) & iType) != 0) #define A_CheckSpriteFlags(iActor, iType) (((SpriteFlags[sprite[iActor].picnum]^actor[iActor].flags) & iType) != 0)
#define A_CheckSpriteTileFlags(iPicnum, iType) ((SpriteFlags[iPicnum] & iType) != 0) // (unsigned)iPicnum check: AMC TC Rusty Nails, bayonet MG alt. fire, iPicnum == -1 (via aplWeaponShoots)
#define A_CheckSpriteTileFlags(iPicnum, iType) (((unsigned)iPicnum < MAXTILES) && (SpriteFlags[iPicnum] & iType) != 0)
#define G_EnterText(x, y, t, dalen, c) _EnterText(0,x,y,t,dalen,c) #define G_EnterText(x, y, t, dalen, c) _EnterText(0,x,y,t,dalen,c)
#define Net_EnterText(x, y, t, dalen, c) _EnterText(1,x,y,t,dalen,c) #define Net_EnterText(x, y, t, dalen, c) _EnterText(1,x,y,t,dalen,c)
#define S_StopSound(num) S_StopEnvSound(num, -1) #define S_StopSound(num) S_StopEnvSound(num, -1)

2
polymer/eduke32/source/gamevars.c
View file

@ -932,6 +932,8 @@ void Gv_ResetSystemDefaults(void)
aplWeaponFlags[i][j]=Gv_GetVarByLabel(aszBuf,0, -1, j); aplWeaponFlags[i][j]=Gv_GetVarByLabel(aszBuf,0, -1, j);
Bsprintf(aszBuf,"WEAPON%d_SHOOTS",i); Bsprintf(aszBuf,"WEAPON%d_SHOOTS",i);
aplWeaponShoots[i][j]=Gv_GetVarByLabel(aszBuf,0, -1, j); aplWeaponShoots[i][j]=Gv_GetVarByLabel(aszBuf,0, -1, j);
if ((unsigned)aplWeaponShoots[i][j] >= MAXTILES)
aplWeaponShoots[i][j] = 0;
Bsprintf(aszBuf,"WEAPON%d_SPAWNTIME",i); Bsprintf(aszBuf,"WEAPON%d_SPAWNTIME",i);
aplWeaponSpawnTime[i][j]=Gv_GetVarByLabel(aszBuf,0, -1, j); aplWeaponSpawnTime[i][j]=Gv_GetVarByLabel(aszBuf,0, -1, j);
Bsprintf(aszBuf,"WEAPON%d_SPAWN",i); Bsprintf(aszBuf,"WEAPON%d_SPAWN",i);

3
polymer/eduke32/source/player.c
View file

@ -346,6 +346,7 @@ int32_t A_Shoot(int32_t i,int32_t atwith)
} }
#ifdef POLYMER #ifdef POLYMER
if (atwith >= 0)
switch (DynamicTileMap[atwith]) switch (DynamicTileMap[atwith])
{ {
case FIRELASER__STATIC: case FIRELASER__STATIC:
@ -1044,7 +1045,7 @@ DOSKIPBULLETHOLE:
} }
} }
else else if (atwith >= 0)
{ {
switch (DynamicTileMap[atwith]) switch (DynamicTileMap[atwith])
{ {