Apparently it was the #45 fix that broke collisions

common/map/region.cpp

@@ -62,7 +62,7 @@ bool Region::SetSolid(int x, int y, bool b) {
 	return solid[x * REGION_WIDTH + y] = b;
 }
 
-bool Region::GetSolid(int x, int y) {
+bool Region::GetSolid(int x, int y) const {
 	if (x < 0 || y < 0 || x >= REGION_WIDTH || y >= REGION_HEIGHT) {
 		throw(std::out_of_range("Region::GetSolid() argument out of range"));
 	}

common/map/region.hpp

@@ -44,7 +44,7 @@ public:
 	type_t GetTile(int x, int y, int z);
 
 	bool SetSolid(int x, int y, bool b);
-	bool GetSolid(int x, int y);
+	bool GetSolid(int x, int y) const;
 
 	//accessors
 	int GetX() const;

common/map/region_pager_base.cpp

@@ -34,10 +34,7 @@ Region::type_t RegionPagerBase::SetTile(int x, int y, int z, Region::type_t v) {
 }
 
 Region::type_t RegionPagerBase::GetTile(int x, int y, int z) {
-	Region* ptr = FindRegion(x, y);
-	if (!ptr) {
-		return 0;
-	}
+	Region* ptr = GetRegion(x, y);
 	return ptr->GetTile(x - ptr->GetX(), y - ptr->GetY(), z);
 }
 
@@ -47,10 +44,7 @@ bool RegionPagerBase::SetSolid(int x, int y, int b) {
 }
 
 bool RegionPagerBase::GetSolid(int x, int y) {
-	Region* ptr = FindRegion(x, y);
-	if (!ptr) {
-		return 0;
-	}
+	Region* ptr = GetRegion(x, y);
 	return ptr->GetSolid(x - ptr->GetX(), y - ptr->GetY());
 }
 

common/map/region_pager_base.hpp

@@ -40,6 +40,7 @@ public:
 	virtual bool GetSolid(int x, int y);
 
 	//region manipulation
+	__attribute__ ((deprecated))
 	virtual Region* GetRegion(int x, int y);
 	virtual Region* FindRegion(int x, int y);
 	virtual Region* PushRegion(Region* const);