Safe tile degree bounds checking

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

SeasonI.h

@@ -17,6 +17,7 @@ enum class ActionType;
 class Entity;
 class Effect;
 class Cutscene;
+class TILE;
 namespace Battle{
     class Move;
 }
@@ -137,6 +138,8 @@ class SeasonI:public PixelGameEngine{
     double ReadDoubleFromStream(std::ifstream&f);
     std::string ReadStringFromStream(std::ifstream&f);
     void CenterCameraOnPlayer();
+    int GetPointQuadrantRelativeToLine(vi2d x1y1,vi2d x2y2,vi2d point);
+    char GetTileDegreeSafely(std::vector<std::vector<TILE*>>&data);
 };
 extern SeasonI*GAME;
 #endif

main.cpp

@@ -4587,13 +4587,9 @@ void SeasonI::DrawGameWorld() {
 		int yTileOffset = cameraPos.y/32;
 		for (auto&obj:OBJECTS) {
 			if (!obj->drawn&&(!obj->dead||EDITING_LAYER==layer::ENCOUNTER)&&
-				(MAP2[y+yTileOffset][(obj->GetPos().x+obj->originPoint.x)/32]->tileDegree==0&&
+				(GetTileDegreeSafely(MAP2)&&
 				obj->GetPos().y+obj->originPoint.y>(y+yTileOffset)*32&&
-				obj->GetPos().y+obj->originPoint.y<=(y+yTileOffset+1)*32||
+				obj->GetPos().y+obj->originPoint.y<=(y+yTileOffset+1)*32)) {
-				MAP2[y+yTileOffset][(obj->GetPos().x+obj->originPoint.x)/32]->tileDegree==-1&& //y=-x+b Check if 32-x position is greater than our y. 
-				((int)(obj->GetPos().x+obj->originPoint.x)%32<32-(int)(obj->GetPos().y+obj->originPoint.y)%32)/*||
-				y+yTileOffset<(int)(obj->GetPos().y+obj->originPoint.y)/32*/)) {
-				printf("%d<%d\n",(int)(obj->GetPos().x+obj->originPoint.x)%32,32-(int)(obj->GetPos().y+obj->originPoint.y)%32);
 				obj->drawn=true;
 				if (obj->blinkFrames>0) {
 					obj->blinkFrames--;
@@ -5546,6 +5542,16 @@ void SeasonI::CenterCameraOnPlayer(){
 	cameraPos=PARTY_MEMBER_OBJ[0]->GetPos()+PARTY_MEMBER_OBJ[0]->originPoint/2-cameraOffset;
 }
 
+int SeasonI::GetPointQuadrantRelativeToLine(vi2d x1y1,vi2d x2y2,vi2d point){
+	return (x2y2.y - x1y1.y) * point.x + (x1y1.x - x2y2.x) * point.y + (x2y2.x * x1y1.y - x1y1.x * x2y2.y);
+}
+
+char SeasonI::GetTileDegreeSafely(std::vector<std::vector<TILE*>>&data){
+	int tileY=(int)PARTY_MEMBER_OBJ[0]->GetPosWithOrigin().y/32;
+	int tileX=(int)PARTY_MEMBER_OBJ[0]->GetPosWithOrigin().x/32;
+	return tileX>=0&&tileY>=0&&tileX<data[0].size()&&tileY<data.size()?data[(int)PARTY_MEMBER_OBJ[0]->GetPosWithOrigin().y/32][(int)PARTY_MEMBER_OBJ[0]->GetPosWithOrigin().x/32]->tileDegree:0;
+}
+
 #ifndef TEST_SUITE
 int main()
 {