112 lines
3.2 KiB
JavaScript
112 lines
3.2 KiB
JavaScript
"use strict";
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const AsteroidThrowerEnemyModel = (function(){
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const AsteroidThrowerEnemyModel = function(xgravity, config = {}){
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const self = this;
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const resolve_image = (img) => {
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if(Array.isArray(img) && img.length > 0){
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return img[Math.floor(Math.random() * img.length)];
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}
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return typeof img === "string" ? img : null;
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};
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const image_src = resolve_image(config.image);
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const base_size = config.size || 2.0;
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const points = config.points || 250;
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const mass = config.mass || 2.2;
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let health = config.health || 45;
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const max_health = health;
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const entity = {
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x : 0,
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y : 0,
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vx : 0,
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vy : 0,
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angle : 0,
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scale : 1.0,
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alpha : 1.0,
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ready : false,
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alive : true,
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age : 0,
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config : config
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};
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const spawn_strategy = SpawnStrategies.get(config.spawn_mode || "perimeter");
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const behavior_strategy = BehaviorStrategies.get(config.behavior || "thrower_ai");
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this.is_ready = () => entity.ready;
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this.is_alive = () => entity.alive;
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this.get_points = () => points;
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this.get_age = () => entity.age;
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this.get_mass = () => mass;
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this.get_health = () => health;
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this.get_max_health = () => max_health;
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this.get_velocity = () => ({ vx: entity.vx, vy: entity.vy });
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this.get_state = () => ({
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x : entity.x,
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y : entity.y,
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angle : entity.angle,
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scale : entity.scale,
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alpha : entity.alpha,
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size : base_size,
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image_src : image_src,
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ready : entity.ready,
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alive : entity.alive,
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health : health,
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max_health : max_health,
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radius : (base_size * entity.scale) * 0.45,
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fallback_color : entity.ready ? "#eab308" : "#fef08a"
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});
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this.get_bounds = () => ({
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x : entity.x,
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y : entity.y,
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radius : (base_size * entity.scale) * 0.45
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});
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this.apply_impulse = (ivx, ivy) => {
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entity.vx += ivx;
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entity.vy += ivy;
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};
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this.set_position = (nx, ny) => {
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entity.x = nx;
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entity.y = ny;
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};
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this.take_damage = (amount) => {
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health = Math.max(0, health - amount);
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if(health <= 0){
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entity.alive = false;
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}
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return entity.alive;
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};
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this.on_hit = () => {
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entity.alive = false;
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};
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this.update = (delta_time, drone_info, all_enemies) => {
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if(!entity.alive) return;
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entity.age += delta_time;
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if(!entity.ready){
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spawn_strategy.update(entity, delta_time);
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} else {
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behavior_strategy(entity, delta_time, drone_info, all_enemies);
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}
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};
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const constructor = () => {
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spawn_strategy.init(entity, config, xgravity);
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};
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constructor();
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};
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return AsteroidThrowerEnemyModel;
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})(); |