decla-red/backend/src/players/player.ts
2020-10-07 16:40:21 +02:00

118 lines
3.2 KiB
TypeScript

import { vec2 } from 'gl-matrix';
import {
CommandExecutors,
CommandReceiver,
CreateObjectsCommand,
CreatePlayerCommand,
DeleteObjectsCommand,
MoveActionCommand,
serialize,
SetViewAreaActionCommand,
TransportEvents,
UpdateObjectsCommand,
} from 'shared';
import { CharacterPhysical } from '../objects/character-physical';
import { BoundingBox } from '../physics/bounding-boxes/bounding-box';
import { PhysicalContainer } from '../physics/containers/physical-container';
import { Physical } from '../physics/physical';
export class Player extends CommandReceiver {
public isActive = true;
private character: CharacterPhysical;
private objectsPreviouslyInViewArea: Array<Physical> = [];
private objectsInViewArea: Array<Physical> = [];
protected commandExecutors: CommandExecutors = {
[SetViewAreaActionCommand.type]: this.setViewArea.bind(this),
[MoveActionCommand.type]: (c: MoveActionCommand) => {
vec2.normalize(c.delta, c.delta);
vec2.scale(c.delta, c.delta, 15);
this.character.sendCommand(c);
},
};
constructor(
private readonly objects: PhysicalContainer,
private readonly socket: SocketIO.Socket,
) {
super();
this.character = new CharacterPhysical(objects);
this.objectsPreviouslyInViewArea.push(this.character);
this.objectsInViewArea.push(this.character);
this.objects.addObject(this.character);
socket.emit(
TransportEvents.ServerToPlayer,
serialize(new CreatePlayerCommand(this.character)),
);
this.sendObjects();
}
public setViewArea(c: SetViewAreaActionCommand) {
const viewArea = new BoundingBox(null);
viewArea.topLeft = c.viewArea.topLeft;
viewArea.size = c.viewArea.size;
this.objectsInViewArea = this.objects.findIntersecting(viewArea);
}
public sendObjects() {
const newlyIntersecting = this.objectsInViewArea.filter(
(o) => !this.objectsPreviouslyInViewArea.includes(o),
);
const noLongerIntersecting = this.objectsPreviouslyInViewArea.filter(
(o) => !this.objectsInViewArea.includes(o),
);
this.objectsPreviouslyInViewArea = this.objectsInViewArea;
if (noLongerIntersecting.length > 0) {
this.socket.emit(
TransportEvents.ServerToPlayer,
serialize(
new DeleteObjectsCommand([
...new Set(noLongerIntersecting.map((p) => p.gameObject.id)),
]),
),
);
}
if (newlyIntersecting.length > 0) {
this.socket.emit(
TransportEvents.ServerToPlayer,
serialize(
new CreateObjectsCommand([
...new Set(newlyIntersecting.map((p) => p.gameObject)),
]),
),
);
}
this.socket.emit(
TransportEvents.ServerToPlayer,
serialize(
new UpdateObjectsCommand([
...new Set(
this.objectsInViewArea.filter((p) => p.canMove).map((p) => p.gameObject),
),
]),
),
);
if (this.isActive) {
//setImmediate(this.sendObjects.bind(this));
setTimeout(this.sendObjects.bind(this), 5);
}
}
public destroy() {
this.isActive = false;
this.character.destroy();
this.objects.removeObject(this.character);
}
}