90 lines
2.2 KiB
TypeScript
90 lines
2.2 KiB
TypeScript
import { MetadataEntry, MetadataWriter } from "../MetadataWriter";
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import { World } from "../World";
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import { MetadataFieldType } from "../enums/MetadataFieldType";
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import { PacketEntityMetadata } from "../packets/EntityMetadata";
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import { IEntity } from "./IEntity";
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export class Entity implements IEntity {
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public static nextEntityId:number = 0;
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public entityId:number;
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public world:World;
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public x:number;
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public y:number;
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public z:number;
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public lastX:number;
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public lastY:number;
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public lastZ:number;
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public health:number;
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public fire:number;
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public crouching:boolean;
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private lastCrouchState:boolean;
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private lastFireState:boolean;
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public constructor(world:World) {
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this.entityId = Entity.nextEntityId++;
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this.fire = 0;
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this.world = world;
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this.x = this.y = this.z = this.lastX = this.lastY = this.lastZ = 0;
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this.crouching = this.lastCrouchState = this.lastFireState = false;
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this.health = 20;
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}
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updateMetadata() {
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const crouchStateChanged = this.crouching !== this.lastCrouchState;
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const fireStateChanged = this.fire > 0 !== this.lastFireState;
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if (crouchStateChanged || fireStateChanged) {
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const metadata = new MetadataWriter();
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// Flags:
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// 1 = On Fire
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// 2 = Player crouched
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// 4 = Player on mount?
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//metadata.addMetadataEntry(0, new MetadataEntry(MetadataFieldType.Byte, 1));
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if (crouchStateChanged) {
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metadata.addMetadataEntry(0, new MetadataEntry(MetadataFieldType.Byte, Number(this.fire > 0) + Number(this.crouching) * 2));
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}
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this.world.sendToNearbyAllNearbyClients(this, new PacketEntityMetadata(this.entityId, metadata.writeBuffer()).writeData());
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this.lastCrouchState = this.crouching;
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this.lastFireState = this.fire > 0;
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}
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}
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distanceTo(entity:IEntity) {
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const dX = entity.x - this.x,
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dY = entity.y - this.y,
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dZ = entity.z - this.z;
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return Math.sqrt(Math.pow(dX, 2) + Math.pow(dY, 2) + Math.pow(dZ, 2));
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}
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damageFrom(damage:number, entity?:IEntity) {
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if (entity === undefined) {
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this.health -= damage;
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}
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}
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onTick() {
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this.updateMetadata();
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if (this.fire > 0) {
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if (this.fire % 20 === 0) {
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this.damageFrom(1);
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}
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this.fire--;
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}
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this.lastX = this.x;
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this.lastY = this.y;
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this.lastZ = this.z;
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}
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} |