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78 lines
1.7 KiB
JavaScript
78 lines
1.7 KiB
JavaScript
class Zombie {
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constructor(options) {
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options = options || {};
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this.position = {
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x: options.x,
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y: options.y
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};
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this.velocity = {
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x: 0,
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y: 16,
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};
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this.image = random(Images.zombies);
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this.alive = true;
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this.height = 64;
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this.width = 64;
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}
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update() {
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let dt = deltaTime / 1000;
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this.position.x += this.velocity.x * dt;
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this.position.y += this.velocity.y * dt;
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}
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draw() {
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tint(Colors.DarkGreen);
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image(this.image, this.position.x - 32, this.position.y - 32, 64, 64);
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if (debug) {
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strokeWeight(4);
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stroke('#FF0000');
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point(this.position.x, this.position.y);
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strokeWeight(1);
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noFill();
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rect(this.position.x - 32, this.position.y - 32, 64, 64);
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}
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}
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kill() {
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this.alive = false;
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}
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isDead() {
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return !this.alive || this.outOfBounds();
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}
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}
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Zombie.prototype.bounds = bounds;
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Zombie.prototype.outOfBounds = outOfBounds;
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Zombie.prototype.overlaps = overlaps;
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class ZombieSpawner {
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constructor(options) {
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options = options || {};
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this.game = options.game;
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this.minT = options.minT || 500;
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this.maxT = options.maxT || 3000;
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this.minX = options.minX || 0;
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this.maxX = options.maxX || 500;
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this.minY = options.minY || 100;
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this.maxY = options.maxY || 100;
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this.planNextSpawn();
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}
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planNextSpawn() {
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let t = random(this.minT, this.maxT);
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this.nextSpawn = setTimeout(() => this.spawnZombie(), t);
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}
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spawnZombie() {
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let zombie = new Zombie({
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x: random(this.minX, this.maxX),
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y: random(this.minY, this.maxY),
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});
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this.game.addZombie(zombie);
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this.planNextSpawn();
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}
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}
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