Add grid snapping

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

TiledCollisionEditor.data

@@ -956,4 +956,14 @@ wH
                            
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TiledCollisionEditor/main.cpp

@@ -44,7 +44,7 @@ public:
 	bool OnUserUpdate(float fElapsedTime) override
 	{
 		Clear(VERY_DARK_BLUE);
-/*
+
 		view.HandlePanAndZoom();
 		
 		const Tileset&tileset=tilesets[activeTileset];
@@ -62,10 +62,10 @@ public:
 		}
 
 		for(auto&[objName,obj]:tileset.objects){
-			view.DrawLineDecal(obj.bounds.pos,obj.bounds.pos+vf2d{2.f,float(obj.bounds.size.y)},YELLOW);
-			view.DrawLineDecal(obj.bounds.pos,obj.bounds.pos+vf2d{float(obj.bounds.size.x),2},YELLOW);
-			view.DrawLineDecal(obj.bounds.pos+obj.bounds.size,obj.bounds.pos+obj.bounds.size+vf2d{-2.f,-float(obj.bounds.size.y)},YELLOW);
-			view.DrawLineDecal(obj.bounds.pos+obj.bounds.size,obj.bounds.pos+obj.bounds.size+vf2d{-float(obj.bounds.size.x),-2.f},YELLOW);
+			view.DrawLineDecal(obj.bounds.pos,obj.bounds.pos+vf2d{0.f,float(obj.bounds.size.y)},YELLOW);
+			view.DrawLineDecal(obj.bounds.pos,obj.bounds.pos+vf2d{float(obj.bounds.size.x),0.f},YELLOW);
+			view.DrawLineDecal(obj.bounds.pos+obj.bounds.size,obj.bounds.pos+obj.bounds.size+vf2d{0.f,-float(obj.bounds.size.y)},YELLOW);
+			view.DrawLineDecal(obj.bounds.pos+obj.bounds.size,obj.bounds.pos+obj.bounds.size+vf2d{-float(obj.bounds.size.x),0.f},YELLOW);
 
 			vi2d nameTextSize=GetTextSizeProp(objName)*0.25f;
 			view.GradientFillRectDecal(obj.bounds.pos,nameTextSize+vf2d{2,2},RED,{255,0,0,64},{255,0,0,64},RED);
@@ -89,13 +89,22 @@ public:
 			const TilesetObject&obj=tileset.objects.at(selectedObj);
 			const bool EditingQuad=editingPoint<4&&editingQuad!=nullptr;
 
+
+			auto GetSnapPoint=[&](){
+				vf2d worldCoords=view.ScreenToWorld(GetMousePos());
+				if(GetKey(CTRL).bHeld){
+					return vf2d{round(worldCoords.x),round(worldCoords.y)};
+				}
+				return vf2d{round(worldCoords.x/tileset.tilewidth)*tileset.tilewidth,round(worldCoords.y/tileset.tileheight)*tileset.tileheight};
+			};
+
 			if(EditingQuad){
-				(*editingQuad)[editingPoint]=view.ScreenToWorld(GetMousePos());
+				(*editingQuad)[editingPoint]=GetSnapPoint();
 			}
 
 			if(GetMouse(Mouse::LEFT).bPressed){
 				if(EditingQuad){
-					(*editingQuad)[editingPoint]=view.ScreenToWorld(GetMousePos());
+					(*editingQuad)[editingPoint]=GetSnapPoint();
 					editingPoint++;
 				}else{
 					if(obj.collisionTiles.size()==0){
@@ -127,13 +136,13 @@ public:
 				view.DrawPolygonDecal(nullptr,points,uvs,cols);
 			}
 		}
-		*/
+		
 		 //Font test.
-		DrawStringDecal({0,0},"the quick brown fox jumps over the lazy dog 1234567890 !@#$%^&*()-=_+[]{}\\;':\",./<>?~`",WHITE,{1.5f,1.5f});
+		/*DrawStringDecal({0,0},"the quick brown fox jumps over the lazy dog 1234567890 !@#$%^&*()-=_+[]{}\\;':\",./<>?~`",WHITE,{1.5f,1.5f});
 		DrawStringDecal({0,18},"THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG 1234567890 !@#$%^&*()-=_+[]{}\\;':\",./<>?~`",WHITE,{1.5f,1.5f});
 		DrawStringPropDecal({0,36},"the quick brown fox jumps over the lazy dog 1234567890 !@#$%^&*()-=_+[]{}\\;':\",./<>?~`",WHITE,{1.5f,1.5f});
 		DrawStringPropDecal({0,54},"THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG 1234567890 !@#$%^&*()-=_+[]{}\\;':\",./<>?~`",WHITE,{1.5f,1.5f});
-		
+		*/
 
 		return true;
 	}

TiledCollisionEditor/pixelGameEngine.h

@@ -6307,6 +6307,7 @@ namespace olc
 			mapKeys[DOM_PK_END] = Key::END; mapKeys[DOM_PK_PAGE_UP] = Key::PGUP; mapKeys[DOM_PK_PAGE_DOWN] = Key::PGDN;
 			mapKeys[DOM_PK_BACKSPACE] = Key::BACK; mapKeys[DOM_PK_ESCAPE] = Key::ESCAPE;
 			mapKeys[DOM_PK_ENTER] = Key::ENTER; mapKeys[DOM_PK_NUMPAD_EQUAL] = Key::EQUALS;
+			
 			mapKeys[DOM_PK_NUMPAD_ENTER] = Key::ENTER; mapKeys[DOM_PK_PAUSE] = Key::PAUSE;
 			mapKeys[DOM_PK_SCROLL_LOCK] = Key::SCROLL;
 			mapKeys[DOM_PK_NUMPAD_0] = Key::NP0; mapKeys[DOM_PK_NUMPAD_1] = Key::NP1; mapKeys[DOM_PK_NUMPAD_2] = Key::NP2;