package com.example.myapplication

import android.content.ContentValues.TAG
import android.content.Context
import android.graphics.Canvas
import android.graphics.Color
import android.graphics.Paint
import android.graphics.PointF
import android.util.Log
import android.view.MotionEvent
import android.view.SurfaceHolder
import android.view.SurfaceView

class customView(context: Context) : SurfaceView(context), SurfaceHolder.Callback  {

    private var canvas: Canvas
    private var customLoop: CustomLoop

    //debug
    private var recPos: PointF = PointF(0f,0f)
    private var paint: Paint = Paint()

    init {
        holder.addCallback(this)
        customLoop = CustomLoop()
        canvas = Canvas()
        paint.color = Color.RED
    }

    override fun surfaceCreated(holder: SurfaceHolder) {
        update()
    }

    override fun surfaceChanged(holder: SurfaceHolder, format: Int, width: Int, height: Int) {
    }

    override fun surfaceDestroyed(holder: SurfaceHolder) {
    }

    override fun onTouchEvent(event: MotionEvent?): Boolean {
        return super.onTouchEvent(event)
    }

    fun update() {
        while (customLoop.updateLoop()) {
            Log.d(TAG, "hi !")
            recPos.x += 1
            draw()
        }
    }

     fun draw() {
        canvas = holder.lockCanvas()

        canvas.drawColor(Color.BLACK)
        canvas.drawRect(10f, 10f, 100f, 100f, paint)

        holder.unlockCanvasAndPost(canvas)
    }
}