88 lines
2.0 KiB
JavaScript
88 lines
2.0 KiB
JavaScript
const {Position} = wielder;
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const shots = [];
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const EVERY = 0.03;
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const N = 14;
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const SPREAD = 1;
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const creating = [];
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const promises = []
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for (let i = 0; i < N; ++i) {
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promises.push(ecs.create({
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Collider: {
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bodies: [
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{
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points: [
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{x: -2.5, y: -2.5},
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{x: 14, y: -2.5},
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{x: 14, y: 2.5},
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{x: -2.5, y: 2.5},
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],
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unstoppable: 1,
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},
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],
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},
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Controlled: {},
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Direction: {direction: Math.TAU * (i / N)},
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Forces: {},
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Position: {x: Position.x, y: Position.y},
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Speed: {},
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Sprite: {
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alpha: 0,
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source: '/assets/magic-swords/magic-sword-shot.json',
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},
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Ticking: {},
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VisibleAabb: {},
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}));
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}
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for (const id of await Promise.all(promises)) {
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creating.push(ecs.get(id));
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}
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const accumulated = {};
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const shot = creating.shift();
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shot.Sprite.alpha = 1;
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accumulated[shot.id] = 0;
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shots.push(shot)
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let spawner = 0;
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while (shots.length > 0) {
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spawner += elapsed;
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if (creating.length > 0 && spawner >= EVERY) {
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const shot = creating.shift();
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shot.Sprite.alpha = 1;
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accumulated[shot.id] = 0;
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shots.push(shot)
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spawner -= EVERY;
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}
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const destroying = [];
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for (const shot of shots) {
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accumulated[shot.id] += elapsed;
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if (accumulated[shot.id] <= SPREAD) {
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shot.Speed.speed = 100 * (1 - (accumulated[shot.id] / SPREAD))
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}
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else {
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const toward = Math.atan2(
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where.y - shot.Position.y,
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where.x - shot.Position.x,
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)
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shot.Speed.speed = 400;
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shot.Direction.direction = (Math.TAU + toward) % Math.TAU;
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if (Math.distance(where, shot.Position) < 4) {
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delete accumulated[shot.id];
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destroying.push(shot);
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}
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}
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shot.Controlled.directionMove(shot.Direction.direction);
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}
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for (let i = 0; i < destroying.length; ++i) {
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shots.splice(shots.indexOf(destroying[i]), 1);
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destroying[i] = destroying[i].id;
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}
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ecs.destroyMany(destroying);
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await wait(0)
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}
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