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Fix indexing out-of-bounds with miscellaneous images

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This fixes indexing out-of-bounds in the functions that draw all the
special images such as the elephant and teleporters. Let's make sure the
game doesn't segfault.
This commit is contained in:
Misa
2020-06-13 18:37:53 -07:00
committed by Ethan Lee
parent d03d8afedf
commit 031402e4bb
1 changed files with 21 additions and 2 deletions
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19
desktop_version/src/Graphics.cpp
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@@ -753,6 +753,10 @@ void Graphics::drawgui()
void Graphics::drawimagecol( int t, int xp, int yp, int r = 0, int g = 0, int b = 0, bool cent/*= false*/ ) void Graphics::drawimagecol( int t, int xp, int yp, int r = 0, int g = 0, int b = 0, bool cent/*= false*/ )
{ {
if (!INBOUNDS(t, images))
{
return;
}
SDL_Rect trect; SDL_Rect trect;
if(r+g+b != 0) if(r+g+b != 0)
{ {
@@ -784,6 +788,10 @@ void Graphics::drawimagecol( int t, int xp, int yp, int r = 0, int g = 0, int b
void Graphics::drawimage( int t, int xp, int yp, bool cent/*=false*/ ) void Graphics::drawimage( int t, int xp, int yp, bool cent/*=false*/ )
{ {
if (!INBOUNDS(t, images))
{
return;
}
SDL_Rect trect; SDL_Rect trect;
if (cent) if (cent)
@@ -808,6 +816,11 @@ void Graphics::drawimage( int t, int xp, int yp, bool cent/*=false*/ )
void Graphics::drawpartimage( int t, int xp, int yp, int wp, int hp) void Graphics::drawpartimage( int t, int xp, int yp, int wp, int hp)
{ {
if (!INBOUNDS(t, images))
{
return;
}
SDL_Rect trect; SDL_Rect trect;
trect.x = xp; trect.x = xp;
@@ -2787,15 +2800,21 @@ void Graphics::drawtele(int x, int y, int t, int c)
SDL_Rect telerect; SDL_Rect telerect;
setRect(telerect, x , y, tele_rect.w, tele_rect.h ); setRect(telerect, x , y, tele_rect.w, tele_rect.h );
if (INBOUNDS(0, tele))
{
BlitSurfaceColoured(tele[0], NULL, backBuffer, &telerect, ct); BlitSurfaceColoured(tele[0], NULL, backBuffer, &telerect, ct);
}
setcol(c); setcol(c);
if (t > 9) t = 8; if (t > 9) t = 8;
if (t < 0) t = 0; if (t < 0) t = 0;
setRect(telerect, x , y, tele_rect.w, tele_rect.h ); setRect(telerect, x , y, tele_rect.w, tele_rect.h );
if (INBOUNDS(t, tele))
{
BlitSurfaceColoured(tele[t], NULL, backBuffer, &telerect, ct); BlitSurfaceColoured(tele[t], NULL, backBuffer, &telerect, ct);
} }
}
Uint32 Graphics::getRGBA(Uint8 r, Uint8 g, Uint8 b, Uint8 a) Uint32 Graphics::getRGBA(Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{ {