@Override
    public void input(float delta) {
        super.input(delta);
        if(Input.getKeyDown(Input.KEY_1)){
            floorMaterial.addTexture("normal", new Texture("brick_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("brick.png"));
        }
        if(Input.getKeyDown(Input.KEY_2)){
            floorMaterial.addTexture("normal", new Texture("clay_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("clay.png"));
        }
        if(Input.getKeyDown(Input.KEY_3)){
            floorMaterial.addTexture("normal", new Texture("stonebrick_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("stonebrick.png"));
        }
        if(Input.getKeyDown(Input.KEY_4)){
            floorMaterial.addTexture("normal", new Texture("grass_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("grass2.png"));
        }
        if(Input.getKeyDown(Input.KEY_5)){
            floorMaterial.addTexture("normal", new Texture("netherbrick_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("netherbrick.png"));
        }
        if(Input.getKeyDown(Input.KEY_6)){
            floorMaterial.addTexture("normal", new Texture("diamondblock_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("diamondblock.png"));
        }
        if(Input.getKeyDown(Input.KEY_7)){
            floorMaterial.addTexture("normal", new Texture("lapis_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("lapis.png"));
        }
        if(Input.getKeyDown(Input.KEY_8)){
            floorMaterial.addTexture("normal", new Texture("netherrack_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("netherrack.png"));
        }
        if(Input.getKeyDown(Input.KEY_9)){
            floorMaterial.addTexture("normal", new Texture("quartzblockchiseled2_normal.png"));
            floorMaterial.addTexture("diffuse", new Texture("quartzblockchiseled2.png"));
        }
    }