73 lines
2.3 KiB
TypeScript
73 lines
2.3 KiB
TypeScript
import { PlaySfx } from "../Applet/Audio";
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import { RenderBounds, Polygon, Location } from "../Ecs/Components";
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import { Join, Remove, Lookup, Create, Id } from "../Ecs/Data";
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import { Data, World, Lifetime, Teams } from "./GameComponents";
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export function SelfDestructMinions(data: Data, world: World) {
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const bossKilled = Join(data, "boss", "hp")
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.filter(([id, boss, {hp}]) => hp < 0)
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.length > 0;
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if(bossKilled) {
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Join(data, "hp")
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.filter(([id, hp]) => hp.team == Teams.ENEMY)
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.forEach(([id, hp]) => hp.hp = 0);
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}
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}
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export function CheckHp(data: Data, world: World) {
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Join(data, "hp").forEach(([id, hp]) => {
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if(hp.hp <= 0) {
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// remove from game
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Remove(data, id);
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}
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});
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}
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export function CheckLifetime(data: Data, world: World, interval: number) {
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let particles = 0;
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Join(data, "lifetime").forEach(([id, lifetime]) => {
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lifetime.time -= interval;
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if(lifetime.time <= 0) {
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// remove from game
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Remove(data, id);
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}
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particles++;
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});
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}
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export function SmokeDamage(data: Data, world: World) {
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Join(data, "hp", "location").forEach(([id, hp, {X, Y}]) => {
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// convert dealt damage to particles
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const puffs = Math.floor(hp.receivedDamage / 3);
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SpawnBlast(data, world, X, Y, 2, "#000", puffs);
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hp.receivedDamage = Math.floor(hp.receivedDamage % 3);
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});
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}
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function SpawnBlast(data: Data, world: World, x: number, y: number, size: number, color: string, count: number) {
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for(let puff = 0; puff < count; puff++) {
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const angle = Math.PI * 2 * puff / count;
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SpawnPuff(data, world, x, y, size, color, angle);
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}
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}
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function SpawnPuff(data: Data, world: World, x: number, y: number, size: number, color: string, angle: number): Id {
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return Create(data, {
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location: new Location({
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X: x,
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Y: y,
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VX: (Math.random() + 0.5) * 400 * Math.cos(angle),
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VY: (Math.random() + 0.5) * 400 * -Math.sin(angle)
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}),
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bounds: new Polygon([
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-size, -size,
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-size, size,
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size, size,
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size, -size
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]),
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renderBounds: new RenderBounds(color, world.smokeLayer),
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lifetime: new Lifetime(Math.random() / 3)
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});
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}
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