84 lines
2.4 KiB
TypeScript
84 lines
2.4 KiB
TypeScript
import {
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Jump,
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Forces,
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Acceleration,
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ComponentNames,
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Velocity,
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Mass,
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} from "../components";
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import { Game } from "../Game";
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import { KeyConstants, PhysicsConstants } from "../config";
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import type { Entity } from "../entities";
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import { Action } from "../interfaces";
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import { System, SystemNames } from "./";
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export class Input extends System {
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private keys: Set<string>;
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private actionTimeStamps: Map<Action, number>;
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constructor() {
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super(SystemNames.Input);
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this.keys = new Set<number>();
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this.actionTimeStamps = new Map<Action, number>();
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}
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public keyPressed(key: string) {
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this.keys.add(key);
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}
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public keyReleased(key: string) {
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this.keys.delete(key);
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}
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private hasSomeKey(keys: string[]): boolean {
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return keys.some((key) => this.keys.has(key));
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}
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public update(dt: number, game: Game) {
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game.componentEntities.get(ComponentNames.Control)?.forEach((entityId) => {
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const entity = game.entities.get(entityId);
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if (!entity.hasComponent(ComponentNames.Velocity)) {
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return;
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}
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const velocity = entity.getComponent<Velocity>(ComponentNames.Velocity);
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if (this.hasSomeKey(KeyConstants.ActionKeys.get(Action.MOVE_RIGHT))) {
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velocity.dCartesian.dx = PhysicsConstants.PLAYER_MOVE_VEL;
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} else if (
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this.hasSomeKey(KeyConstants.ActionKeys.get(Action.MOVE_LEFT))
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) {
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velocity.dCartesian.dx = -PhysicsConstants.PLAYER_MOVE_VEL;
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} else {
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velocity.dCartesian.dx = 0;
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}
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});
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game.componentEntities.get(ComponentNames.Jump)?.forEach((entityId) => {
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const entity = game.entities.get(entityId);
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const jump = entity.getComponent<Jump>(ComponentNames.Jump);
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const velocity = entity.getComponent<Velocity>(ComponentNames.Velocity);
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if (this.hasSomeKey(KeyConstants.ActionKeys.get(Action.JUMP))) {
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if (jump.canJump) {
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this.actionTimeStamps.set(Action.JUMP, performance.now());
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velocity.dCartesian.dy = PhysicsConstants.PLAYER_JUMP_INITIAL_VEL;
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jump.canJump = false;
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}
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if (
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performance.now() - this.actionTimeStamps.get(Action.JUMP) <
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PhysicsConstants.MAX_JUMP_TIME_MS
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) {
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const mass = entity.getComponent<Mass>(ComponentNames.Mass).mass;
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entity.getComponent<Forces>(ComponentNames.Forces)?.forces.push({
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fCartesian: { fy: mass * PhysicsConstants.PLAYER_JUMP_ACC },
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});
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}
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}
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});
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}
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}
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