cpp/openttd-patchpack/source Changeset - r13859:1852aec3e30e

Changeset - r13859:1852aec3e30e

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rubidium - 15 years ago 2009-12-04 16:57:35
rubidium@openttd.org

(svn r18398) -Fix [FS#3343]: the tree 'which one to draw' hash wasn't anywhere near random and thus showed a very visible repeated pattern when only one tree type was used

1 file changed with 3 insertions and 11 deletions:

src/tree_cmd.cpp

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src/tree_cmd.cpp

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@@ @@ -457,16 +457,8 @@ static void DrawTile_Trees(TileInfo *ti) @@
 	/* Do not draw trees when the invisible trees setting is set */
 	if (IsInvisibilitySet(TO_TREES)) return;
 	uint16 tmp = ti->x;
 	tmp = ROR(tmp, 2);
 	tmp -= ti->y;
 	tmp = ROR(tmp, 3);
 	tmp -= ti->x;
 	tmp = ROR(tmp, 1);
 	tmp += ti->y;
 	uint index = GB(tmp, 6, 2) + (GetTreeType(ti->tile) << 2);
 	uint tmp = CountBits(ti->tile + ti->x + ti->y);
 	uint index = GB(tmp, 0, 2) + (GetTreeType(ti->tile) << 2);
 	/* different tree styles above one of the grounds */
 	if (GetTreeGround(ti->tile) == TREE_GROUND_SNOW_DESERT &&
@@ @@ -478,7 +470,7 @@ static void DrawTile_Trees(TileInfo *ti) @@
 	assert(index < lengthof(_tree_layout_sprite));
 	const PalSpriteID *s = _tree_layout_sprite[index];
-	const TreePos *d = _tree_layout_xy[GB(tmp, 4, 2)];
+	const TreePos *d = _tree_layout_xy[GB(tmp, 2, 2)];
 	/* combine trees into one sprite object */
 	StartSpriteCombine();

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