Poison.ts

/*
 * todo
 * make the powerups actually do something
 * enemy count
 * sub bullets (spawn a child bullet at age)
 * enemy fire rate
 * bullet count
 * enemy movement
 * homing enemy bullets
 * player bullet spread
 * player bullet count
 * player orientation
 * kill bullets if they exit the screen
 * sound
 * make the enemy segmented
 * particles
 * write a range function (leftBound, rightBound, count, index)
 * returns for (0, 1, 1, 0) = 0.5
 * returns for (0, 1, 2, 0) = 0
 * */
import * as m from "mglue";
import { Vector, Color, Keyboard, Random, TextDrawer, Sound } from "mglue";

class BasicGame extends m.Game
{
	level : number = 0;
	ship : Ship;
	onBeginGame()
	{
		this.ship = new Ship();
		this.nextLevel();
	}
	nextLevel()
	{
		this.level++;
		new Pickup(0.25)
		new Pickup(0.75)
	}
	update()
	{
	}
}
class Enemy extends m.Actor
{
	hp : number = 2;
	begin()
	{
		this.hp = g.level + 2;
		this.position.set(0.5, 0.1)
		this.drawing
		.setColor(Color.pink)
		.addRect(0.05)
	}
	update()
	{
		if(this.age%30==0)
		{
			let direction = new m.Vector(0, 1);
			// aim routine
			direction = g.ship.position.copy().subtract(this.position).normalize();
			new EnemyShot(this.position.copy(),direction);
		}
	}
	hit()
	{
		this.hp--;
		if(this.hp == 0)
		{
			this.destroy();
			g.nextLevel();
		}
	}
}
class Pickup extends m.Actor
{
	text : m.TextActor;
	begin(px)
	{
		this.text = new m.TextActor("POW");	
		this.text.setDurationForever();
		this.text.setVelocity(new m.Vector(0, 0.002));
		this.text.position.set(px, 0)
		this.drawing
		.setColor(m.Color.orange)
		.addRect(0.1, 0.05);
	}
	update()
	{
		this.text.update();
		this.position = this.text.position.copy();
		if(this.text.position.y > g.ship.position.y)
		{
			this.text.velocity.y = 0;
			this.text.position.y = g.ship.position.y;
		}
		this.checkOverlap(Ship, (s:Ship)=>{
			this.onGrab();
		}));
	}
	onGrab()
	{
		this.group.members.forEach((p : Actor)=>{
			p.destroy();
			p.text.destroy();
		});
		new Enemy();
	}
}	
class EnemyShot extends m.Actor
{
	begin(pos, direction)
	{
		this.position = pos;
		this.drawing
		.setColor(Color.pink)
		.addRect(0.01)
		direction.multiply(0.01);
		this.velocity = direction;   
	}
}

let SPEED_MULT = 1;
class Ship extends m.Actor
{
    acceleration : Vector = new Vector(0,0);
    speed : number = 0.0017 * SPEED_MULT;
    maxVelocity : number = 0.019 * SPEED_MULT;
 
	begin()
	{
		this.position.set(0.5,0.9)
		this.drawing
			.setColor(Color.blue)
			.addSegementedRect(0.01, 0.05,-0.005,0,-20)
			.addSegementedRect(0.01, 0.05, 0.005,0,20)
			.mirrorX()
	}
	update()
	{
	this.acceleration.set(0,0);
        if(Keyboard.keyDown[Keyboard.LEFT])
        {
            this.acceleration.set(-this.speed, 0);
        }
        else if(Keyboard.keyDown[Keyboard.RIGHT])
        {
            this.acceleration.set(this.speed, 0);
        }
        else
        {
            this.velocity.multiply(0.8);
        }
        this.velocity.add(this.acceleration);
          this.velocity.x = this.velocity.x.clamp(-this.maxVelocity, this.maxVelocity);
        let clampedX = this.position.x.clamp(0, 1);
        // zero velocity when we hit the walls
        if(clampedX != this.position.x)
        {
            this.velocity.x = 0;
            this.position.x = clampedX;
        }
 
	this.checkOverlap(EnemyShot, (e : EnemyShot) =>{
		this.kill()
	});
	if(this.age%20==0)
		{
			new PlayerShot(this.position.copy());
		}
	}
	kill()
	{
		this.destroy()
		g.endGame();
	}
}
class PickupCore
{
	onPickup()
	{}
	enemyUpdate(e:Enemy)
	{}
}
class PlayerShot extends m.Actor
{
	begin(pos)
	{
		this.position = pos;
		this.drawing
		.setColor(Color.blue)
		.addRect(0.02)
		this.velocity.set(0, -0.03)
	}
	update()
	{
		this.checkOverlap(Enemy, (e : Enemy)=>{
			e.hit()
			this.destroy();
		});
	}
}
var g: BasicGame;

m.Config.title = "NEW GAME";
m.Config.saveName = "newGame";
m.Game.runOnReady(() =>
{
	g = new BasicGame();
});