SCI32: Add note about kCantBeHere rect

scummvm · Mar 13, 2016 · 430d5be · 430d5be
1 parent 80098c8
commit 430d5be
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/engines/sci/graphics/compare.cpp b/engines/sci/graphics/compare.cpp
@@ -158,6 +158,10 @@ reg_t GfxCompare::kernelCanBeHere(reg_t curObject, reg_t listReference) {
 }
 
 reg_t GfxCompare::kernelCantBeHere32(const reg_t curObject, const reg_t listReference) const {
+	// Most of SCI32 graphics code converts rects from the VM to exclusive
+	// rects before operating on them, but this call leverages SCI16 engine
+	// code that operates on inclusive rects, so the rect's bottom-right
+	// point is not modified like in other SCI32 kernel calls
 	Common::Rect checkRect(
 		readSelectorValue(_segMan, curObject, SELECTOR(brLeft)),
 		readSelectorValue(_segMan, curObject, SELECTOR(brTop)),