package com.xerpi.particleweapon;

import java.util.ArrayList;
import java.util.Random;

import android.graphics.Bitmap;
import android.graphics.Canvas;

public class Particles {
    Random random = new Random();
    private float speed1,speed2;
    boolean finished = false;
    ArrayList <Particle> particles = new ArrayList<Particle>();

    public Particles(int total,double speed1,double speed2){
        this.speed1 = (float) speed1;
        this.speed2 = (float) speed2;
        for (int i =0; i<total;i++){
            this.add(speed1,speed2);
        }
    }

    public class Particle{
        double x,y,inc_x,inc_y,w,h,angle,speed;
        boolean dead = false;
        public Particle(){
            this.angle = random.nextDouble()*(6.28);
            this.inc_x = Math.cos(this.angle);
            this.inc_y = Math.sin(this.angle);
            this.speed = getSpeedValue(speed1,speed2);
        }
    }
    public void blit(float x,float y,Bitmap img,Canvas canvas){
        for (int i = 0; i < this.particles.size(); i++){
            if (this.particles.get(i).dead){
                continue;
            }
            canvas.save();
            canvas.rotate((float) Math.toDegrees(this.particles.get(i).angle),x+(float) this.particles.get(i).x,y+(float) this.particles.get(i).y);
            canvas.drawBitmap(img, x+(float) this.particles.get(i).x,y+(float) this.particles.get(i).y,null);
            canvas.restore();
        }
    }

    public boolean move() {
        this.finished = true;
        for (int i = 0; i < this.particles.size(); i++) {
            if (this.particles.get(i).dead){
                continue;
            }
            this.particles.get(i).y += this.particles.get(i).inc_y * this.particles.get(i).speed;
            this.particles.get(i).x += this.particles.get(i).inc_x * this.particles.get(i).speed;
            if (this.particles.get(i).x < 854 && this.particles.get(i).x > 0 && this.particles.get(i).y < 480 && this.particles.get(i).y > 0){
//              this.particles.get(i).inc_x *=-1;
//              this.particles.get(i).angle+=Math.PI;
                this.finished = false;
            }
        }
        return this.finished;
    }

    public void reset() {
        for (int i = 0; i < this.particles.size(); i++) {
            this.particles.set(i,new Particle());
        }
    }

    public void add(double speed1,double speed2){
        this.particles.add(new Particle());
    }
    public double getSpeedValue(double num1,double num2){
        return num1 + ((num2-num1)*this.random.nextDouble());
    }
}