Palette and graphics test rendering.

EarthboundBattleBackgrounds/EarthboundBattleBackgrounds/main.cpp

@@ -237,6 +237,7 @@ struct Rom{
 		std::vector<uint16_t>arrayGraphicsData;
 		std::vector<Tile>tiles;
 		byte bpp;
+	private:
 		void buildTiles(){
 			int n{int(graphicsData.size())/(8*bpp)};
 			for(int i{};i<n;i++){
@@ -255,7 +256,7 @@ struct Rom{
 				}
 			}
 		}
-
+	public:
 		BackgroundGraphics(std::u8string_view data,uint16_t index,byte bpp)
 		:bpp(bpp){
 			DataBlock graphicsPtr{data,0xD7A1U+index*4U};
@@ -337,15 +338,47 @@ public:
 		}
 	}
 
+	uint8_t selectedPalette{};
+
 	void GraphicsDisplayTest(){
+		if(GetMouseWheel()<0)yOffset-=32;
+		if(GetMouseWheel()>0)yOffset+=32;
 
+		Clear(BLACK);
+
+		DrawStringDecal({},std::format("Selected Palette: {}",selectedPalette));
+
+		if(GetKey(PGUP).bPressed)selectedPalette=std::clamp(int(selectedPalette)-1,0,int(rom.palettes.size()-1));
+		if(GetKey(PGDN).bPressed)selectedPalette=std::clamp(int(selectedPalette)+1,0,int(rom.palettes.size()-1));;
+
+		Rom::BackgroundPalette&palette{rom.palettes[selectedPalette]};
+		for(uint8_t index=0;Pixel&col:palette.colors){
+			FillRectDecal(vf2d{index*8.f,8.f+yOffset+9},{8,8},col);
+			index++;
+		}
+
+		for(uint8_t row=0;Rom::BackgroundGraphics&graphics:rom.graphics){
+			for(uint8_t col=0;Rom::Tile&tile:graphics.tiles){
+				for(int x{};x<tile.size();x++){
+					for(int y{};y<tile[x].size();y++){
+						int paletteInd{tile[x][y]};
+						Pixel color{MAGENTA};
+						const bool ColorInRange{paletteInd<palette.colors.size()};
+						if(ColorInRange)color=palette.colors[paletteInd];
+						Draw(vi2d{col*8,row*8+yOffset+20}+vi2d{x,y},color);
+					}
+				}
+				col++;
+			}
+			row++;
+		}
 	}
 
 	int yOffset{0};
 
 	bool OnUserUpdate(float fElapsedTime) override
 	{
-		PaletteDisplayTest();
+		//PaletteDisplayTest();
 		GraphicsDisplayTest();
 		return true;
 	}