package com.stirante.mangareader;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.os.Handler;
import android.os.Looper;
import android.view.View;

/**
 * Created by stirante
 */

public class BallView extends View {

    Handler mHandler = new Handler(Looper.getMainLooper());
    Runnable mTick = new Runnable() {
        public void run() {
            invalidate();
            mHandler.postDelayed(this, 20); // 20ms == 60fps
        }
    };
    private Bitmap ballImage;
    private float x = 0;
    private float y = 0;
    private int dirX = 1;
    private int dirY = 1;
    private int speed = 8;
    private int width = -1;
    private int height = -1;

    public BallView(Context context) {
        super(context);
        ballImage = BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher_round);//tutaj zamien na jakies swoje obrazki
        startAnimation();
    }

    void startAnimation() {
        mHandler.removeCallbacks(mTick);
        mHandler.post(mTick);
    }

    void stopAnimation() {
        mHandler.removeCallbacks(mTick);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        if (width <= 0 && height <= 0) return;
        x += dirX * speed;
        y += dirY * speed;
        if (x >= width - ballImage.getWidth()) dirX = -1;
        if (x < 0) dirX = 1;
        if (y >= height - ballImage.getHeight()) dirY = -1;
        if (y < 0) dirY = 1;
        canvas.drawBitmap(ballImage, x, y, null);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        width = getMeasuredWidth();
        height = getMeasuredHeight();
    }
}