Start implementing palette cycler/distorter.

EarthboundBattleBackgrounds/EarthboundBattleBackgrounds/main.cpp

@@ -1,6 +1,8 @@
 #define OLC_PGE_APPLICATION
 #include "olcPixelGameEngine.h"
 
+#define PI 3.14159f
+
 #include <ranges>
 
 using namespace olc;
@@ -269,11 +271,45 @@ struct Rom{
 			arrayGraphicsData=arrayBlock.decompress();
 		}
 	};
+
+	struct BackgroundLayer{
+
+		struct Distorter{
+			const float c1{1/512.f};
+			const float c2{8*PI/(1024*256.f)};
+			const float c3{PI/60.f};
+			Sprite&bitmap;
+			Distorter(Sprite&bitmap)
+			:bitmap(bitmap){}
+		};
+
+		struct PaletteCycle{
+			std::vector<Pixel>originalCols;
+			std::vector<Pixel>currentCols;
+			byte type,start1,end1,start2,end2,speed,cycleCountdown,cycleCount{};
+			PaletteCycle(BattleBackground&background,BackgroundPalette&palette)
+			:type(background.paletteCycleType),start1(background.paletteCycle1StartInd),end1(background.paletteCycle1EndInd),start2(background.paletteCycle2StartInd),end2(background.paletteCycle2EndInd),speed(background.paletteCycleSpeed/2),cycleCountdown(speed),originalCols(palette.colors),currentCols(originalCols){
+				for(int i:std::views::iota(0U,originalCols.size())){
+					originalCols.emplace_back(originalCols[i]);
+				}
+			}
+		};
+
+		PixelGameEngine*pge;
+		Sprite*spr;
+		Distorter distorter;
+		PaletteCycle cycle;
+		BattleBackground&background;
+		BackgroundGraphics&graphics;
+		BackgroundLayer(PixelGameEngine*pge,uint8_t pgeLayer,uint16_t backgroundInd,std::vector<BattleBackground>&backgrounds,std::vector<BackgroundPalette>&palettes,std::vector<BackgroundGraphics>&graphics)
+		:pge(pge),spr(new Sprite(256,256)),distorter(*spr),background(backgrounds[backgroundInd]),graphics(graphics[background.graphicsInd]),cycle(background,palettes[background.paletteInd]){}
+	};
 	std::u8string data;
 	inline static std::string reversedBytes;
 	std::vector<BattleBackground>backgrounds;
 	std::vector<BackgroundPalette>palettes;
 	std::vector<BackgroundGraphics>graphics;
+	BackgroundLayer layer1{nullptr,0U,0U,backgrounds},layer2{nullptr,1U,0U,backgrounds};
 	Rom(){
 		#pragma region Setup Reversed Bytes
 			reversedBytes.resize(256);
@@ -320,8 +356,6 @@ public:
 public:
 	bool OnUserCreate() override
 	{
-		CreateLayer();
-		EnableLayer(1U,true);
 		return true;
 	}
 
@@ -375,12 +409,17 @@ public:
 		}
 	}
 
+	void BackgroundLayerDisplayTest(){
+
+	}
+
 	int yOffset{0};
 
 	bool OnUserUpdate(float fElapsedTime) override
 	{
 		//PaletteDisplayTest();
-		GraphicsDisplayTest();
+		//GraphicsDisplayTest();
+		BackgroundLayerDisplayTest();
 		return true;
 	}
 };