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March 24, 2021 12:43
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| import {_Entity, Component, ComponentConstructor, PropType, Types, World} from 'ecsy'; | |
| type BuiltinPropTypes = | |
| typeof Number | typeof Boolean | typeof String | typeof Array | typeof Object; // you can add more | |
| interface Typed<T, D> { | |
| type: PropType<T, D>; | |
| } | |
| interface PropOptions<T, D> { | |
| type: PropType<T, D> | Typed<T, D> | BuiltinPropTypes; | |
| default?: D; | |
| } | |
| const BUILTINS_MAP = new Map<BuiltinPropTypes, PropType<any, any>>([ | |
| [Number, Types.Number], | |
| [Boolean, Types.Boolean], | |
| [String, Types.String], | |
| [Array, Types.Array], | |
| [Object, Types.Ref], | |
| [Vector2, Vector2Type] | |
| ]); | |
| export function prop<T, D>( | |
| practicalOptions: PropOptions<T, D> | PropType<T, D> | Typed<T, D> | BuiltinPropTypes | |
| ) { | |
| return function(target: any, name: string): void { | |
| if (target.constructor.schema === Component.schema) target.constructor.schema = {}; | |
| const options: PropOptions<T, D> = | |
| 'type' in practicalOptions ? practicalOptions : {type: practicalOptions}; | |
| options.type = | |
| BUILTINS_MAP.get(options.type as BuiltinPropTypes) ?? | |
| ('type' in options.type ? options.type.type : options.type); | |
| target.constructor.schema[name] = options; | |
| }; | |
| } | |
| const components: ComponentConstructor<Component<any>>[] = []; | |
| export function component(constructor: ComponentConstructor<Component<any>>): void { | |
| components.push(constructor); | |
| } | |
| export function registerAllComponents(world: World): void { | |
| for (const comp of components) world.registerComponent(comp); | |
| } | |
| declare module 'ecsy' { | |
| interface Entity { // eslint-disable-line @typescript-eslint/no-unused-vars | |
| get<C extends Component<any>>( | |
| this: Entity, type: ComponentConstructor<C>, includeRemoved?: boolean): Readonly<C>; | |
| mutate<C extends Component<any>>(this: Entity, type: ComponentConstructor<C>): C; | |
| } | |
| } | |
| _Entity.prototype.get = function get<C extends Component<any>>( | |
| this: _Entity, type: ComponentConstructor<C>, includeRemoved?: boolean | |
| ): Readonly<C> { | |
| // Don't check if the component exists and throw an exception since it would likely just slow | |
| // things down, and we'll crash pretty soon if the component isn't there anyway. | |
| return this.getComponent(type, includeRemoved)!; | |
| }; | |
| _Entity.prototype.mutate = function mutate<C extends Component<any>>( | |
| this: _Entity, type: ComponentConstructor<C> | |
| ): C { | |
| // Don't check if the component exists and throw an exception since it would likely just slow | |
| // things down, and we'll crash pretty soon if the component isn't there anyway. | |
| return this.getMutableComponent(type)!; | |
| }; |
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