import com.mygdx.manager.GameStateManager;
import com.mygdx.manager.MyContactListener;
import com.mygdx.manager.MyInput;




import static com.mygdx.manager.Box2DVariables.BIT_PLAYER;
import static com.mygdx.manager.Box2DVariables.PPM;



public class Play extends GameState{


    private World  world;


    private Player player;


    private Box2DDebugRenderer b2d;
    private OrthographicCamera B2DCAM;
    private TiledMap tileMap;
    private OrthogonalTiledMapRenderer orthomap;
    private MyContactListener cl;
    private float tileSize;
    private Sprite sprite;
    private Viewport viewport;

    private Texture back;



    //file name
    private final String LEVEL_1 ="maps/tilemap_1.tmx";

    public Play(GameStateManager gsm) {
        super(gsm);


        //setup box2d
        world=new World(new Vector2(0,-9.8f),true);
        cl=new MyContactListener();
        world.setContactListener(cl);
        sb=new SpriteBatch();
        viewport = new ExtendViewport(MyMainGame.Width, MyMainGame.Height, cam);
       // sprite=new Sprite(MyMainGame.con.getTexture("sprite"),32,32);
        //cam=new OrthographicCamera();

        b2d=new Box2DDebugRenderer();

        //create Player
        createPlayer();
        //create Tiles
        createTiles();
        orthomap = new OrthogonalTiledMapRenderer(tileMap,1/32f);
        // sb=new SpriteBatch();


        //setup Box2D Cam
        B2DCAM=new OrthographicCamera();
        B2DCAM.setToOrtho(false, MyMainGame.Width/PPM,MyMainGame.Height/PPM);
           //setup hud and cam
        hud=new OrthographicCamera();
        cam=new OrthographicCamera();
        cam.setToOrtho(false,10,7);
        hud.setToOrtho(false,MyMainGame.Width,MyMainGame.Height);













      /* //TODO - remove me
        File file = new File(LEVEL_1);
        if(file.exists())
            System.out.println("file exists");*/


    }


    @Override
    public void init() {

    }

    @Override
    public void update(float dt) {
        handleInput();

            world.step(dt,6,2);
            player.update(dt);

    }

    @Override
    public void draw() {

    }

    @Override
    public void render() {

        //clear screen

        Gdx.gl20.glClear(GL20.GL_COLOR_BUFFER_BIT);






        hud.update();


    if (sb == null) {
System.out.println("Sb is null");
        }
       // cam.position.set(player.getPosition().x,player.getPosition().y,0  );
          sb.setProjectionMatrix(cam.combined);






           //draw tile map
        orthomap.setView(cam);
        orthomap.render();
           //draw player
        sb.setProjectionMatrix(hud.combined);

        player.render(sb);

        b2d.render(world,B2DCAM.combined);




    }

    @Override
    public void handleInput() {
     if(MyInput.isPressed((MyInput.SPACE))){
         System.out.println("space pressed");
         if(cl.isPlayerOnGround())
             System.out.println(cl.isPlayerOnGround());
             player.getBody().applyForceToCenter(0,200,true);
         }
     }


    @Override
    public void dispose() {
        world.dispose();
        b2d.dispose();
        tileMap.dispose();
        orthomap.dispose();
    }

    private void createPlayer(){
        BodyDef bodydef=new BodyDef();
        FixtureDef fixdef=new FixtureDef();
        PolygonShape shape=new PolygonShape();


        //create player
        bodydef.position.set(60/PPM,200/PPM);
        bodydef.type= BodyDef.BodyType.DynamicBody;
       //
         bodydef.linearVelocity.set(1,0);
        Body body=world.createBody(bodydef);

        shape.setAsBox(13/PPM,13/PPM);
        fixdef.shape=shape;
        fixdef.filter.categoryBits= BIT_PLAYER;
        fixdef.filter.maskBits=Box2DVariables.BIT_BLUE;
       // fixdef.filter.maskBits=Box2DVariables.BIT_GREEN;
        body.createFixture(fixdef).setUserData("PLAYER");


        //create foot sensor
        shape.setAsBox(13/PPM,2/PPM,new Vector2(0,-13/PPM),0);
        fixdef.shape=shape;
        fixdef.filter.categoryBits= BIT_PLAYER;
        fixdef.filter.maskBits=Box2DVariables.BIT_BLUE;
      //  fixdef.filter.maskBits=Box2DVariables.BIT_GREEN;
        fixdef.isSensor=true;
        body.createFixture(fixdef).setUserData("FOOT");

        //create Player
        player=new Player(body);
        body.setUserData(player);
    }
    private void createTiles(){
//load tile map
        tileMap = new TmxMapLoader().load(LEVEL_1);
        //orthomap = new OrthogonalTiledMapRenderer(tileMap,1);


        tileSize=(int)tileMap.getProperties().get("tilewidth", Integer.class);
        System.out.println("Tile Size " +tileSize);

        TiledMapTileLayer layer;

        layer=(TiledMapTileLayer)tileMap.getLayers().get("Blue");
            createLayer(layer,Box2DVariables.BIT_BLUE);
        layer=(TiledMapTileLayer)tileMap.getLayers().get("Green");
        createLayer(layer,Box2DVariables.BIT_GREEN);
        layer=(TiledMapTileLayer)tileMap.getLayers().get("Red");
        createLayer(layer,Box2DVariables.BIT_RED);
        System.out.println("Layer Height " +layer.getHeight());
        System.out.println("Layer Width " +layer.getWidth());
    }
    private void createLayer(TiledMapTileLayer layer,short bits){
        BodyDef bodydef1=new BodyDef();
        FixtureDef fixdef1=new FixtureDef();

//go through cells in layer
        for(int row=0;row<layer.getHeight();row++){
            for(int col=0;col<layer.getWidth();col++){
                //get cells
                TiledMapTileLayer.Cell cell=layer.getCell(col,row);

                //check if cell exists
                if(cell==null) continue;
                if(cell.getTile()==null) continue;

                //create body and fixture from cell
                bodydef1.type= BodyDef.BodyType.StaticBody;
                bodydef1.position.set((col+0.5f)*tileSize/PPM,(row+0.5f)*tileSize/PPM);
                ChainShape cs=new ChainShape();
                Vector2[] v=new Vector2[3];
                //bottom left
                v[0]=new Vector2(-tileSize/2/PPM,-tileSize/2/PPM);
                //top left
                v[1]=new Vector2(-tileSize/2/PPM,tileSize/2/PPM);
                //top right corner
                v[2]=new Vector2(tileSize/2/PPM,tileSize/2/PPM);


                cs.createChain(v);
                fixdef1.friction=0;
                fixdef1.shape =cs;
                fixdef1.filter.categoryBits=bits;
                fixdef1.filter.maskBits=BIT_PLAYER;
                fixdef1.isSensor=false;
                world.createBody(bodydef1).createFixture(fixdef1);

            }
        }
    }
}

cam.position.set(player.getPosition().x,player.getPosition().y,0);