#define OLC_PGE_APPLICATION
#include "pixelGameEngine.h"

using namespace olc;

class Hexes : public olc::PixelGameEngine
{
public:
	Hexes()
	{
		sAppName = "Hexes";
	}

public:
	Decal*hexImg;
	vf2d offset={100,100};

	bool OnUserCreate() override
	{
		// Called once at the start, so create things here
		hexImg = new Decal(new Sprite("hexTex.png"));
		return true;
	}

	bool OnUserUpdate(float fElapsedTime) override
	{
		if (GetKey(UP).bHeld) {
			offset.y+=fElapsedTime*200;
		}
		if (GetKey(DOWN).bHeld) {
			offset.y-=fElapsedTime*200;
		}
		if (GetKey(LEFT).bHeld) {
			offset.x+=fElapsedTime*200;
		}
		if (GetKey(RIGHT).bHeld) {
			offset.x-=fElapsedTime*200;
		}
		// called once per frame
		float scale=20;
		for (int x=0;x<20;x++) {
			for (int y=0;y<20;y++) {
				vf2d offset2={(y&1?-0.45F*scale:0)+offset.x+x*0.9F*scale,y*scale*0.7F+offset.y};
				DrawPolygonDecal(hexImg,{
					{0+offset2.x,0.5F*scale+offset2.y},{-0.45F*scale+offset2.x,0.25F*scale+offset2.y},{0+offset2.x,0+offset2.y},{0.45F*scale+offset2.x,0.25F*scale+offset2.y},{0.45F*scale+offset2.x,0.75F*scale+offset2.y},{0+offset2.x,1*scale+offset2.y},{-0.45F*scale+offset2.x,0.75F*scale+offset2.y},{-0.45F*scale+offset2.x,0.25F*scale+offset2.y}
				},{
					{1,1},{0,1},{0,0},{0,1},{0,0},{0,1},{0,0},{0,1}
				});
			}
		}
		return true;
	}
};


int main()
{
	Hexes demo;
	if (demo.Construct(256, 240, 4, 4))
		demo.Start();

	return 0;
}