4 files changed, 14 insertions, 20 deletions
diff --git a/engines/wintermute/base/base_surface_storage.cpp b/engines/wintermute/base/base_surface_storage.cpp
index 4e795ca813..2205e3e096 100644
--- a/engines/wintermute/base/base_surface_storage.cpp
+++ b/engines/wintermute/base/base_surface_storage.cpp
@@ -176,32 +176,29 @@ bool BaseSurfaceStorage::sortSurfaces() {
 
 
 //////////////////////////////////////////////////////////////////////////
-int BaseSurfaceStorage::surfaceSortCB(const void *arg1, const void *arg2) {
-	const BaseSurface *s1 = *((const BaseSurface *const *)arg1);
-	const BaseSurface *s2 = *((const BaseSurface *const *)arg2);
-
+bool BaseSurfaceStorage::surfaceSortCB(const BaseSurface *s1, const BaseSurface *s2) {
 	// sort by life time
 	if (s1->_lifeTime <= 0 && s2->_lifeTime > 0) {
-		return 1;
+		return false;
 	} else if (s1->_lifeTime > 0 && s2->_lifeTime <= 0) {
-		return -1;
+		return true;
 	}
 
 
 	// sort by validity
 	if (s1->_valid && !s2->_valid) {
-		return -1;
+		return true;
 	} else if (!s1->_valid && s2->_valid) {
-		return 1;
+		return false;
 	}
 
 	// sort by time
 	else if (s1->_lastUsedTime > s2->_lastUsedTime) {
-		return 1;
+		return false;
 	} else if (s1->_lastUsedTime < s2->_lastUsedTime) {
-		return -1;
+		return true;
 	} else {
-		return 0;
+		return false;
 	}
 }
 
diff --git a/engines/wintermute/base/base_surface_storage.h b/engines/wintermute/base/base_surface_storage.h
index aef8ad23f9..61738e69a2 100644
--- a/engines/wintermute/base/base_surface_storage.h
+++ b/engines/wintermute/base/base_surface_storage.h
@@ -39,7 +39,7 @@ public:
 	uint32 _lastCleanupTime;
 	bool initLoop();
 	bool sortSurfaces();
-	static int surfaceSortCB(const void *arg1, const void *arg2);
+	static bool surfaceSortCB(const BaseSurface *arg1, const BaseSurface *arg2);
 	bool cleanup(bool warn = false);
 	//DECLARE_PERSISTENT(BaseSurfaceStorage, BaseClass);
 
diff --git a/engines/wintermute/base/particles/part_emitter.cpp b/engines/wintermute/base/particles/part_emitter.cpp
index bab4d4609e..e1bc659fdd 100644
--- a/engines/wintermute/base/particles/part_emitter.cpp
+++ b/engines/wintermute/base/particles/part_emitter.cpp
@@ -373,16 +373,13 @@ bool PartEmitter::sortParticlesByZ() {
 }
 
 //////////////////////////////////////////////////////////////////////////
-int PartEmitter::compareZ(const void *obj1, const void *obj2) {
-	const PartParticle *p1 = *(const PartParticle *const *)obj1;
-	const PartParticle *p2 = *(const PartParticle *const *)obj2;
-
+bool PartEmitter::compareZ(const PartParticle *p1, const PartParticle *p2) {
 	if (p1->_posZ < p2->_posZ) {
-		return -1;
+		return true;
 	} else if (p1->_posZ > p2->_posZ) {
-		return 1;
+		return false;
 	} else {
-		return 0;
+		return false;
 	}
 }
 
diff --git a/engines/wintermute/base/particles/part_emitter.h b/engines/wintermute/base/particles/part_emitter.h
index f2c8f139f1..3aa55e1ac8 100644
--- a/engines/wintermute/base/particles/part_emitter.h
+++ b/engines/wintermute/base/particles/part_emitter.h
@@ -127,7 +127,7 @@ private:
 	BaseScriptHolder *_owner;
 
 	PartForce *addForceByName(const Common::String &name);
-	int static compareZ(const void *obj1, const void *obj2);
+	bool static compareZ(const PartParticle *p1, const PartParticle *p2);
 	bool initParticle(PartParticle *particle, uint32 currentTime, uint32 timerDelta);
 	bool updateInternal(uint32 currentTime, uint32 timerDelta);
 	uint32 _lastGenTime;