Screen

package com.thecherno.rain.graphics;

import java.util.Random;

import com.thecherno.rain.entity.mob.Player;
import com.thecherno.rain.level.tile.Tile;

public class Screen {

    public int width,height;
    public int[] pixels;
    public final int MAP_SIZE = 64;
    public final int MAP_SIZE_MASK = MAP_SIZE - 1;
    public int[] tiles = new int[MAP_SIZE * MAP_SIZE];

    public int xOffset, yOffset;

    private Random random = new Random();

    public Screen(int width, int height) {
            this.width = width;
            this.height = height;
            pixels = new int[width * height];

            for (int i = 0; i < MAP_SIZE * MAP_SIZE; i++) {
                    tiles[i] = random.nextInt(0xffffff);
            }
    }

    public void clear() {
            for (int i = 0; i < pixels.length; i++) {
                    pixels[i] = 0;
            }
    }

    public void renderTile(int xp, int yp, Tile tile) {
        xp -= xOffset;
        yp -= yOffset;
        for (int y = 0; y < tile.sprite.SIZE; y++) {
            int ya = y + yp;
            for (int x = 0; x < tile.sprite.SIZE; x++) {
                int xa = x + xp;
                if (xa < -tile.sprite.SIZE || xa >= width || ya < 0 || ya >= height) break;
                if (xa < 0) xa = 0;
                pixels[xa+ya*width] = tile.sprite.pixels[x+y*tile.sprite.SIZE];

            }
        }
    }

    public void renderPlayer(int xp, int yp, Sprite sprite) {
        xp -= xOffset;
        yp -= yOffset;
        for (int y = 0; y < 16; y++) {
            int ya = y + yp;
            for (int x = 0; x < 16; x++) {
                int xa = x + xp;
                if (xa < -16 || xa >= width || ya < 0 || ya >= height) break;
                if (xa < 0) xa = 0;
                pixels[xa+ya*width] = sprite.pixels[x+y*16];

            }
        }
    }
    public void setOffset(int xOffset, int yOffset) {
        this.xOffset = xOffset;
        this.yOffset = yOffset;
    }
}