Added ability to create new objects, delete objects, and delete/move collision ranges without changing targets until mouse leaves a previous collisoin target.

TiledCollisionEditor/main.cpp

@@ -22,9 +22,11 @@ class TiledCollisionEditor : public olc::PixelGameEngine
 	bool dragging=false;
 	bool dragTranslate=false;
 	vf2d upperLeftDragOffset{};
+	Quadrilateral*highlightedQuad=nullptr;
 
 	bool dragNewObj=false;
 	vi2d upperLeftObjTile{};
+	vi2d lowerRightObjTile{};
 
 	Renderable circle;
 	Renderable createNewButtonImg;
@@ -70,6 +72,7 @@ public:
 		createNewButton->hotkey=Q;
 		editButton=new ImageCheckBox{gui,editButtonImg,true,vf2d{40.f,ScreenHeight()-36.f},{32.f,32.f},{4,4},{32,32}};
 		editButton->hotkey=E;
+
 		return true;
 	}
 
@@ -77,6 +80,13 @@ public:
 		const Tileset&tileset=tilesets[activeTileset];
 
 		if(selectedObj.length()>0){
+
+			if(GetKey(DEL).bPressed){
+				tilesets[activeTileset].objects.erase(selectedObj);
+				selectedObj="";
+				return;
+			}
+
 			for(int y=0;y<tileset.tilecount/tileset.columns;y++){
 				for(int x=0;x<tileset.columns;x++){
 					if(!geom2d::contains(tileset.objects.at(selectedObj).bounds,vf2d{float(x*tileset.tilewidth)+tileset.tilewidth/2,float(y*tileset.tileheight)+tileset.tileheight/2})){
@@ -117,36 +127,25 @@ public:
 			}
 			if(editButton->bChecked){
 				if(GetMouse(Mouse::LEFT).bPressed){
+					if(highlightedQuad!=nullptr){
 						#pragma region Select a point on a collision quad.
-					for(const Quadrilateral&quad:obj.collisionTiles){
+						for(size_t pointInd=0;const vf2d&point:*highlightedQuad){
-						for(size_t pointInd=0;const vf2d&point:quad){
 							if(geom2d::line<float>(point,view.ScreenToWorld(GetMousePos())).length()<4){
-								if(GetMouse(Mouse::LEFT).bPressed){
 								editingPoint=pointInd;
-									editingQuad=const_cast<Quadrilateral*>(&quad);
+								editingQuad=highlightedQuad;
-									originalQuad=quad;
+								originalQuad=*highlightedQuad;
-								}
 								goto exitCollisionCheck;
 							}
 							pointInd++;
 						}
-					}
 						#pragma endregion
-					for(const Quadrilateral&quad:obj.collisionTiles){
+
-						std::array<geom2d::triangle<float>,2>collisionTris{
-							geom2d::triangle<float>{quad[0],quad[1],quad[2]},
-							geom2d::triangle<float>{quad[0],quad[2],quad[3]},
-						};
-						for(geom2d::triangle<float>&tri:collisionTris){
-							if(geom2d::overlaps(tri,geom2d::circle<float>(view.ScreenToWorld(GetMousePos()),3.f))){
 						dragTranslate=true;
-								editingQuad=const_cast<Quadrilateral*>(&quad);
+						editingQuad=highlightedQuad;
-								upperLeftDragOffset=GetSnapPoint()-quad[0];
+						upperLeftDragOffset=GetSnapPoint()-(*highlightedQuad)[0];
 						originalQuad=*editingQuad;
 						goto exitCollisionCheck;
 					}
-						}
-					}
 					exitCollisionCheck:
 					if(EditingQuad&&!dragging){
 						(*editingQuad)[editingPoint]=GetSnapPoint();
@@ -174,23 +173,8 @@ public:
 			}
 
 			if(GetMouse(Mouse::RIGHT).bPressed&&!EditingQuad&&!dragTranslate){
-				std::vector<Quadrilateral*>quadsToBeRemoved;
+				if(highlightedQuad!=nullptr){
-				for(const Quadrilateral&quad:obj.collisionTiles){
+					std::erase_if(tilesets[activeTileset].objects[selectedObj].collisionTiles,[&](Quadrilateral&q){return &q==highlightedQuad;});
-					std::array<geom2d::triangle<float>,2>collisionTris{
-						geom2d::triangle<float>{quad[0],quad[1],quad[2]},
-						geom2d::triangle<float>{quad[0],quad[2],quad[3]},
-					};
-					for(geom2d::triangle<float>&tri:collisionTris){
-						if(geom2d::overlaps(tri,geom2d::circle<float>(view.ScreenToWorld(GetMousePos()),3.f))){
-							//Delete this quad, the mouse is overlapping it!
-							quadsToBeRemoved.push_back(const_cast<Quadrilateral*>(&quad));
-							break;
-						}
-					}
-				}
-
-				for(Quadrilateral*quad:quadsToBeRemoved){
-					std::erase_if(tilesets[activeTileset].objects[selectedObj].collisionTiles,[&](Quadrilateral&q){return &q==quad;});
 				}
 			}
 
@@ -215,18 +199,26 @@ public:
 
 	void NewObjectUpdate(){
 		const Tileset&tileset=tilesets[activeTileset];
-		if(GetMouse(Mouse::LEFT).bPressed){
-			vf2d worldCoords=view.ScreenToWorld(GetMousePos());
-			upperLeftObjTile=vi2d{int(round(worldCoords.x/tileset.tilewidth)*tileset.tilewidth),int(round(worldCoords.y/tileset.tileheight)*tileset.tileheight)};
-			dragNewObj=true;
-		}
 		if(GetMouse(Mouse::LEFT).bReleased){
 			dragNewObj=false;
 			
 			vf2d worldCoords=view.ScreenToWorld(GetMousePos());
-			vi2d lowerRightObjTile=vi2d{int(round(worldCoords.x/tileset.tilewidth)*tileset.tilewidth),int(round(worldCoords.y/tileset.tileheight)*tileset.tileheight)};
+			vi2d newUpperLeftTile=upperLeftObjTile;
+			vi2d newLowerRightTile=lowerRightObjTile;
 
-			geom2d::rect<int>newObjRect{upperLeftObjTile,lowerRightObjTile-upperLeftObjTile};
+			if(worldCoords.x<upperLeftObjTile.x){
+				newLowerRightTile.x=int(floor(worldCoords.x/tileset.tilewidth)*tileset.tilewidth);
+				std::swap(newUpperLeftTile.x,newLowerRightTile.x);
+			}
+			if(worldCoords.y<upperLeftObjTile.y){
+				newLowerRightTile.y=int(floor(worldCoords.y/tileset.tileheight)*tileset.tileheight);
+				std::swap(newUpperLeftTile.y,newLowerRightTile.y);
+			}
+
+			if(newLowerRightTile.x==newUpperLeftTile.x)newLowerRightTile.x+=tileset.tilewidth;
+			if(newLowerRightTile.y==newUpperLeftTile.y)newLowerRightTile.y+=tileset.tileheight;
+
+			geom2d::rect<int>newObjRect{newUpperLeftTile,newLowerRightTile-newUpperLeftTile};
 
 			const Tileset&tileset=tilesets[activeTileset];
 			//Check for intersection with other objects, if found then we deny creating this object this way.
@@ -244,10 +236,10 @@ public:
 
 				TilesetObject&newObj=tilesets[activeTileset].objects[objName];
 				newObj.name=objName;
-				for(int y=0;y<newObjRect.size.y;y++){
+				for(int y=0;y<newObjRect.size.y/tileset.tileheight;y++){
-					for(int x=0;x<newObjRect.size.x;x++){
+					for(int x=0;x<newObjRect.size.x/tileset.tilewidth;x++){
-						int tileX=upperLeftObjTile.x/tileset.tilewidth+x;
+						int tileX=newUpperLeftTile.x/tileset.tilewidth+x;
-						int tileY=upperLeftObjTile.y/tileset.tileheight+y;
+						int tileY=newUpperLeftTile.y/tileset.tileheight+y;
 						int tileID=tileY*tileset.columns+tileX;
 						newObj.AddTile(tileset,tileID);
 					}
@@ -292,6 +284,13 @@ public:
 		if(editButton->bPressed)createNewButton->bChecked=false;
 
 		if(GetMouseY()<ScreenHeight()-36||GetMouseX()>72){
+			if(selectedObj.length()==0){
+				if(GetMouse(Mouse::LEFT).bPressed){
+					vf2d worldCoords=view.ScreenToWorld(GetMousePos());
+					upperLeftObjTile=vi2d{int(floor(worldCoords.x/tileset.tilewidth)*tileset.tilewidth),int(floor(worldCoords.y/tileset.tileheight)*tileset.tileheight)};
+					dragNewObj=true;
+				}
+			}
 			if(!dragNewObj){
 				Update();
 			}else{
@@ -308,7 +307,18 @@ public:
 		if(selectedObj.length()>0&&!dragNewObj){
 			const TilesetObject&obj=tileset.objects.at(selectedObj);
 		
-			Quadrilateral*highlightedQuad=nullptr;
+			if(highlightedQuad!=nullptr){
+				std::array<geom2d::triangle<float>,2>collisionTris{
+					geom2d::triangle<float>{(*highlightedQuad)[0],(*highlightedQuad)[1],(*highlightedQuad)[2]},
+					geom2d::triangle<float>{(*highlightedQuad)[0],(*highlightedQuad)[2],(*highlightedQuad)[3]},
+				};
+				for(geom2d::triangle<float>&tri:collisionTris){
+					if(geom2d::overlaps(tri,geom2d::circle<float>(view.ScreenToWorld(GetMousePos()),3.f))){
+						goto renderQuads;
+					}
+				}
+				highlightedQuad=nullptr;
+			}else{
 				for(const Quadrilateral&quad:obj.collisionTiles){
 					std::array<geom2d::triangle<float>,2>collisionTris{
 						geom2d::triangle<float>{quad[0],quad[1],quad[2]},
@@ -321,6 +331,7 @@ public:
 						}
 					}
 				}
+			}
 			renderQuads:
 			for(const Quadrilateral&quad:obj.collisionTiles){
 				std::vector<vf2d>points;
@@ -347,11 +358,26 @@ public:
 		}else
 		if(dragNewObj){
 			vf2d worldCoords=view.ScreenToWorld(GetMousePos());
-			vi2d lowerRightObjTile=vi2d{int(round(worldCoords.x/tileset.tilewidth)*tileset.tilewidth),int(round(worldCoords.y/tileset.tileheight)*tileset.tileheight)};
+			lowerRightObjTile=vi2d{int(ceil(worldCoords.x/tileset.tilewidth)*tileset.tilewidth),int(ceil(worldCoords.y/tileset.tileheight)*tileset.tileheight)};
+			
+			vi2d newUpperLeftTile=upperLeftObjTile;
+			vi2d newLowerRightTile=lowerRightObjTile;
+
+			if(worldCoords.x<upperLeftObjTile.x){
+				newLowerRightTile.x=int(floor(worldCoords.x/tileset.tilewidth)*tileset.tilewidth);
+				std::swap(newUpperLeftTile.x,newLowerRightTile.x);
+			}
+			if(worldCoords.y<upperLeftObjTile.y){
+				newLowerRightTile.y=int(floor(worldCoords.y/tileset.tileheight)*tileset.tileheight);
+				std::swap(newUpperLeftTile.y,newLowerRightTile.y);
+			}
+
+			if(newLowerRightTile.x==newUpperLeftTile.x)newLowerRightTile.x+=tileset.tilewidth;
+			if(newLowerRightTile.y==newUpperLeftTile.y)newLowerRightTile.y+=tileset.tileheight;
 
 			Pixel overlayCol={0,0,255,160};
 
-			geom2d::rect<int>newObjRect{upperLeftObjTile,lowerRightObjTile-upperLeftObjTile};
+			geom2d::rect<int>newObjRect{newUpperLeftTile,newLowerRightTile-newUpperLeftTile};
 
 			for(auto&[name,obj]:tileset.objects){
 				geom2d::rect<float>offsetBounds{obj.bounds.pos+vf2d{0.5f,0.5f},obj.bounds.size-vf2d{1.f,1.f}};
@@ -361,7 +387,7 @@ public:
 				}
 			}
 
-			view.FillRectDecal(upperLeftObjTile,lowerRightObjTile-upperLeftObjTile,overlayCol);
+			view.FillRectDecal(newObjRect.pos,newObjRect.size,overlayCol);
 		}
 
 		for(auto&[objName,obj]:tileset.objects){

TiledCollisionEditor/olcPGEX_QuickGUI.h

@@ -1029,6 +1029,8 @@ namespace olc::QuickGUI
 			bHeld = false;		
 		}
 
+		if(fMax<fMin)std::swap(fMax,fMin);
+
 		fValue = std::clamp(fValue, fMin, fMax);
 		m_fTransition = std::clamp(m_fTransition, 0.0f, 1.0f);
 	}