libretro/scummvm
1
0
Fork 0
mirror of https://github.com/libretro/scummvm.git synced 2025-01-24 19:45:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

SAGA2: Amend unsafe and strange pointer arithmetics in lineTerrain()

Browse Source
This commit is contained in:
Eugene Sandulenko 2021-06-23 18:54:12 +02:00
parent 14811e3202
commit a8600afb26
No known key found for this signature in database
GPG Key ID: 014D387312D34F08
1 changed files with 16 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
engines/saga2/terrain.cpp
View File

@ -376,8 +376,8 @@ uint32 lineTerrain(
uint16 subTileMask_ = 0;
int16 tileStartZ,
*minZ,
*maxZ;
minZ,
maxZ;
int32 curZ,
zStep;
@ -423,11 +423,11 @@ uint32 lineTerrain(
curZ = (int32)curSubTile.z << 16;
zStep = ((int32)(destSubTile.z - curSubTile.z) << 16);
if (zStep > 0) {
minZ = &tileStartZ;
maxZ = &curSubTile.z;
minZ = tileStartZ;
maxZ = curSubTile.z;
} else {
minZ = &curSubTile.z;
maxZ = &tileStartZ;
minZ = curSubTile.z;
maxZ = tileStartZ;
}
if (uDiff > vDiff) {
@ -447,8 +447,8 @@ uint32 lineTerrain(
mapNum,
tilePt,
subTileMask_,
*minZ,
*maxZ + 1);
minZ,
maxZ + 1);
if (terrain & opaqueTerrain) return terrain;
tilePt.u = curSubTile.u >> kTileSubShift;
@ -478,8 +478,8 @@ uint32 lineTerrain(
mapNum,
tilePt,
subTileMask_,
*minZ,
*maxZ + 1);
minZ,
maxZ + 1);
if (terrain & opaqueTerrain) return terrain;
tilePt.v = curSubTile.v >> kTileSubShift;
@ -516,8 +516,8 @@ uint32 lineTerrain(
mapNum,
tilePt,
subTileMask_,
*minZ,
*maxZ + 1);
minZ,
maxZ + 1);
if (terrain & opaqueTerrain) return terrain;
tilePt.v = curSubTile.v >> kTileSubShift;
@ -548,8 +548,8 @@ uint32 lineTerrain(
mapNum,
tilePt,
subTileMask_,
*minZ,
*maxZ + 1);
minZ,
maxZ + 1);
if (terrain & opaqueTerrain) return terrain;
tilePt.u = curSubTile.u >> kTileSubShift;
@ -577,8 +577,8 @@ uint32 lineTerrain(
mapNum,
tilePt,
subTileMask_,
*minZ,
*maxZ);
minZ,
maxZ);
return terrain;
}