darker-engine/esm/src/engine.js

ecs lightweight library

var __asyncValues = (this && this.__asyncValues) || function (o) {
    if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
    var m = o[Symbol.asyncIterator], i;
    return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
};
import { uid, UIDKey } from './uid.js';
export const engine = () => {
    let rawSystems = []; // TODO: remove??
    let systems = [];
    let entityList = [];
    let typeEntityMap = {};
    let entityComponentMap = {};
    // Contains which components/data has every entity
    let entityDataMap = [];
    // Contains which entities has every system
    let systemEntitiesMap = [];
    const { getUID } = uid(() => entityList);
    const setSystems = async (..._systems) => {
        var _a, e_1, _b, _c;
        var _d;
        rawSystems = [..._systems];
        systems = [];
        systemEntitiesMap = [];
        try {
            for (var _e = true, _systems_1 = __asyncValues(_systems), _systems_1_1; _systems_1_1 = await _systems_1.next(), _a = _systems_1_1.done, !_a;) {
                _c = _systems_1_1.value;
                _e = false;
                try {
                    const system = _c;
                    const _system = (await system());
                    _system.name = system.name;
                    _system.id = (_d = _system.id) !== null && _d !== void 0 ? _d : getUID(UIDKey.SYSTEM);
                    systemEntitiesMap[_system.id] = [];
                    systems[_system.id] = _system;
                }
                finally {
                    _e = true;
                }
            }
        }
        catch (e_1_1) { e_1 = { error: e_1_1 }; }
        finally {
            try {
                if (!_e && !_a && (_b = _systems_1.return)) await _b.call(_systems_1);
            }
            finally { if (e_1) throw e_1.error; }
        }
    };
    const _entity_removeComponent = async (entityId, component) => {
        var _a, e_2, _b, _c;
        var _d, _e;
        const entity = getEntity(entityId);
        if (!entity) {
            return console.warn(`Warning "removeComponent::(${entityId},${component})" undefined`);
        }
        entityComponentMap[entityId] = entityComponentMap[entityId].filter((_component) => _component !== component);
        const systemList = systems
            .filter((system) => {
            var _a;
            const entities = systemEntitiesMap[system.id];
            return (_a = entities === null || entities === void 0 ? void 0 : entities.includes(entityId)) !== null && _a !== void 0 ? _a : false;
        })
            .filter((system) => !system.components.every((_component) => { var _a; return (_a = entityComponentMap[entityId]) === null || _a === void 0 ? void 0 : _a.includes(_component); }))
            .reverse();
        try {
            for (var _f = true, systemList_1 = __asyncValues(systemList), systemList_1_1; systemList_1_1 = await systemList_1.next(), _a = systemList_1_1.done, !_a;) {
                _c = systemList_1_1.value;
                _f = false;
                try {
                    const system = _c;
                    const entities = systemEntitiesMap[system.id];
                    systemEntitiesMap[system.id] = (_d = entities === null || entities === void 0 ? void 0 : entities.filter((_id) => _id !== entityId)) !== null && _d !== void 0 ? _d : [];
                    try {
                        await ((_e = system === null || system === void 0 ? void 0 : system.onRemove) === null || _e === void 0 ? void 0 : _e.call(system, entityId));
                    }
                    catch (e) {
                        console.warn(`Error catch system::${system.id} "onRemove(${entityId})"`);
                        console.error(e);
                    }
                }
                finally {
                    _f = true;
                }
            }
        }
        catch (e_2_1) { e_2 = { error: e_2_1 }; }
        finally {
            try {
                if (!_f && !_a && (_b = systemList_1.return)) await _b.call(systemList_1);
            }
            finally { if (e_2) throw e_2.error; }
        }
        return;
    };
    const _entity_updateComponent = async (entityId, component, data) => {
        var _a, e_3, _b, _c;
        var _d, _e;
        const entity = getEntity(entityId);
        if (!entity) {
            console.warn(`Warning "updateComponent::(${entityId},${component})" undefined`);
            return entity;
        }
        if (!((_d = entityComponentMap[entityId]) === null || _d === void 0 ? void 0 : _d.includes(component))) {
            return await _entity_addComponent(entityId, component, data);
        }
        const currentData = entityDataMap[entity.id];
        entityDataMap[entity.id] = Object.assign(Object.assign({}, currentData), { [component]: Object.assign(Object.assign({}, (currentData[component] || {})), data) });
        const systemList = systems
            //Only filters the current updated component
            .filter((system) => system.components.includes(component))
            .filter((system) => {
            var _a;
            const entities = systemEntitiesMap[system.id];
            return (_a = entities === null || entities === void 0 ? void 0 : entities.includes(entityId)) !== null && _a !== void 0 ? _a : false;
        });
        try {
            for (var _f = true, systemList_2 = __asyncValues(systemList), systemList_2_1; systemList_2_1 = await systemList_2.next(), _a = systemList_2_1.done, !_a;) {
                _c = systemList_2_1.value;
                _f = false;
                try {
                    const system = _c;
                    try {
                        await ((_e = system === null || system === void 0 ? void 0 : system.onUpdate) === null || _e === void 0 ? void 0 : _e.call(system, entityId, component));
                    }
                    catch (e) {
                        console.warn(`Error catch system::${system.id} "onUpdate(${entityId}, ${component})"`);
                        console.error(e);
                    }
                }
                finally {
                    _f = true;
                }
            }
        }
        catch (e_3_1) { e_3 = { error: e_3_1 }; }
        finally {
            try {
                if (!_f && !_a && (_b = systemList_2.return)) await _b.call(systemList_2);
            }
            finally { if (e_3) throw e_3.error; }
        }
        return entity;
    };
    const _entity_addComponent = async (entityId, component, data = {}) => {
        var _a, e_4, _b, _c;
        var _d;
        const entity = getEntity(entityId);
        if (!entity) {
            console.warn(`Warning "addComponent::(${entityId},${component})" undefined`);
            return entity;
        }
        entityComponentMap[entity.id].push(component);
        entityDataMap[entity.id] = Object.assign(Object.assign({}, entityDataMap[entity.id]), { [component]: data });
        const systemList = systems
            .filter((system) => system.components.includes(component))
            // Cuando los sistemas no contengan la entidad actual
            .filter((system) => {
            var _a;
            const entities = systemEntitiesMap[system.id];
            return (_a = !(entities === null || entities === void 0 ? void 0 : entities.includes(entityId))) !== null && _a !== void 0 ? _a : true;
        })
            // Cuando la entidad tenga los componentes correspondientes a ese sistema
            .filter((system) => system.components.every((_component) => { var _a; return (_a = entityComponentMap[entityId]) === null || _a === void 0 ? void 0 : _a.includes(_component); }));
        try {
            for (var _e = true, systemList_3 = __asyncValues(systemList), systemList_3_1; systemList_3_1 = await systemList_3.next(), _a = systemList_3_1.done, !_a;) {
                _c = systemList_3_1.value;
                _e = false;
                try {
                    const system = _c;
                    const entities = systemEntitiesMap[system.id];
                    systemEntitiesMap[system.id] = [...(entities !== null && entities !== void 0 ? entities : []), entityId];
                    try {
                        await ((_d = system === null || system === void 0 ? void 0 : system.onAdd) === null || _d === void 0 ? void 0 : _d.call(system, entityId));
                    }
                    catch (e) {
                        console.warn(`Error catch system::${system.id} "onAdd(${entityId})"`);
                        console.error(e);
                    }
                }
                finally {
                    _e = true;
                }
            }
        }
        catch (e_4_1) { e_4 = { error: e_4_1 }; }
        finally {
            try {
                if (!_e && !_a && (_b = systemList_3.return)) await _b.call(systemList_3);
            }
            finally { if (e_4) throw e_4.error; }
        }
        return entity;
    };
    // TODO: maintain original order, not this shit
    const _entity_getComponentTypes = (entityId) => entityComponentMap[entityId];
    const _entity_getComponent = (entityId, component, deepClone = false) => {
        const entityData = entityDataMap[entityId];
        return entityData && entityData[component]
            ? deepClone ? structuredClone(entityData[component]) : Object.assign({}, entityData[component])
            : {};
    };
    const _entity_getComponents = (entityId, components, deepClone = false) => {
        const entityData = entityDataMap[entityId];
        return components.reduce((acc, component) => {
            const data = entityData[component];
            if (!data)
                return acc;
            acc[component] = deepClone ? structuredClone(data) : data;
            return acc;
        }, {});
    };
    const _entity_hasComponent = (entityId, component) => { var _a; return (_a = entityComponentMap[entityId]) === null || _a === void 0 ? void 0 : _a.includes(component); };
    const _entity_getData = (entityId) => structuredClone(entityDataMap[entityId]);
    const getEntityList = () => Object.values(entityList) || [];
    const getEntityListByType = (type) => { var _a; return ((_a = typeEntityMap[type]) === null || _a === void 0 ? void 0 : _a.map((entityId) => entityList[entityId])) || []; };
    const getEntityListByComponents = (...componentList) => {
        return entityList
            .reduce((list, entity) => {
            const entityComponents = entityComponentMap[entity.id];
            if (componentList.length === 0 ||
                componentList.every((component) => entityComponents.includes(component))) {
                return [...list, entity];
            }
            return list;
        }, Array())
            .filter(Boolean);
    };
    const getEntity = (entityId) => {
        const entity = entityList[entityId];
        if (!entity) {
            console.warn(`Warning "internal::getEntity(${entityId})" undefined`);
        }
        return entity;
    };
    const addEntity = async (...rawEntities) => {
        var _a, e_5, _b, _c, _d, e_6, _e, _f;
        var _g;
        const date = Date.now();
        const entities = rawEntities.map((rawEntity) => {
            var _a, _b, _c;
            const entity = rawEntity;
            entity.id = (_a = entity.id) !== null && _a !== void 0 ? _a : getUID(UIDKey.ENTITY, entity.safe);
            entity.getData = () => _entity_getData(entity.id);
            entity.getComponent = (component, deepClone) => _entity_getComponent(entity.id, component, deepClone);
            entity.getComponentTypes = () => _entity_getComponentTypes(entity.id);
            entity.getComponents = (components, deepClone) => _entity_getComponents(entity.id, components, deepClone);
            entity.hasComponent = (component) => _entity_hasComponent(entity.id, component);
            entity.removeComponent = (component) => _entity_removeComponent(entity.id, component);
            entity.updateComponent = (component, data) => _entity_updateComponent(entity.id, component, data);
            if (!typeEntityMap[entity.type]) {
                typeEntityMap[entity.type] = [];
            }
            typeEntityMap[entity.type].push(entity.id);
            entityComponentMap[entity.id] = entity.components;
            entityDataMap[entity.id] = (_c = (_b = entity === null || entity === void 0 ? void 0 : entity.getComponentTypes) === null || _b === void 0 ? void 0 : _b.call(entity).reduce((acc, b) => (Object.assign(Object.assign({}, acc), { [b]: acc[b] || {} })), entity.data)) !== null && _c !== void 0 ? _c : {};
            entityList[entity.id] = entity;
            return entity;
        });
        try {
            for (var _h = true, entities_1 = __asyncValues(entities), entities_1_1; entities_1_1 = await entities_1.next(), _a = entities_1_1.done, !_a;) {
                _c = entities_1_1.value;
                _h = false;
                try {
                    const entity = _c;
                    // Calculate points from component order.
                    const componentMapPoint = entity.components.reduce((obj, com, ind) => (Object.assign(Object.assign({}, obj), { [com]: ind ** 2 })), {});
                    const systemList = systems
                        .map((system) => ({
                        system,
                        // Assign system by component points order
                        points: system.components.reduce((points, component) => componentMapPoint[component] + points, 0),
                    }))
                        .filter((system) => !isNaN(system.points))
                        .sort((systemA, systemB) => systemB.points > systemA.points ? -1 : systemB.points === systemA.points ? 0 : 1)
                        .map(({ system }) => system);
                    try {
                        for (var _j = true, systemList_4 = (e_6 = void 0, __asyncValues(systemList)), systemList_4_1; systemList_4_1 = await systemList_4.next(), _d = systemList_4_1.done, !_d;) {
                            _f = systemList_4_1.value;
                            _j = false;
                            try {
                                const system = _f;
                                const systemEntities = systemEntitiesMap[system.id];
                                systemEntitiesMap[system.id] = [...(systemEntities !== null && systemEntities !== void 0 ? systemEntities : []), entity.id];
                                try {
                                    await ((_g = system === null || system === void 0 ? void 0 : system.onAdd) === null || _g === void 0 ? void 0 : _g.call(system, entity.id));
                                }
                                catch (e) {
                                    console.warn(`Error catch system::${system.id} "onUpdate(${entity.id})"`);
                                    console.error(e);
                                }
                            }
                            finally {
                                _j = true;
                            }
                        }
                    }
                    catch (e_6_1) { e_6 = { error: e_6_1 }; }
                    finally {
                        try {
                            if (!_j && !_d && (_e = systemList_4.return)) await _e.call(systemList_4);
                        }
                        finally { if (e_6) throw e_6.error; }
                    }
                }
                finally {
                    _h = true;
                }
            }
        }
        catch (e_5_1) { e_5 = { error: e_5_1 }; }
        finally {
            try {
                if (!_h && !_a && (_b = entities_1.return)) await _b.call(entities_1);
            }
            finally { if (e_5) throw e_5.error; }
        }
        const ms = Date.now() - date;
        if (ms > 500) {
            console.warn(`addEntity ${ms}ms addedEntities:${entities.length} totalEntities:${entityList.length}`);
        }
        return entities;
    };
    const removeEntity = async (...entityIdList) => {
        var _a, e_7, _b, _c, _d, e_8, _e, _f;
        var _g, _h, _j;
        const _entityList = entityIdList.map((entityId) => entityList[entityId]);
        try {
            for (var _k = true, _entityList_1 = __asyncValues(_entityList), _entityList_1_1; _entityList_1_1 = await _entityList_1.next(), _a = _entityList_1_1.done, !_a;) {
                _c = _entityList_1_1.value;
                _k = false;
                try {
                    const entity = _c;
                    if (!entity)
                        return;
                    const componentEntityList = (_g = entity === null || entity === void 0 ? void 0 : entity.getComponentTypes) === null || _g === void 0 ? void 0 : _g.call(entity);
                    if (!componentEntityList)
                        return;
                    // Calculate points from component order.
                    const componentMapPoint = componentEntityList.reduce((obj, com, ind) => (Object.assign(Object.assign({}, obj), { [com]: ind ** 2 })), {});
                    const systemList = systems
                        .map((system) => ({
                        system,
                        // Assign system by component points order
                        points: system.components.reduce((points, component) => componentMapPoint[component] + points, 0),
                    }))
                        .filter((system) => !isNaN(system.points))
                        .sort((systemA, systemB) => systemB.points > systemA.points ? 1 : systemB.points === systemA.points ? 0 : -1)
                        .map(({ system }) => system);
                    try {
                        for (var _l = true, systemList_5 = (e_8 = void 0, __asyncValues(systemList)), systemList_5_1; systemList_5_1 = await systemList_5.next(), _d = systemList_5_1.done, !_d;) {
                            _f = systemList_5_1.value;
                            _l = false;
                            try {
                                const system = _f;
                                try {
                                    await ((_h = system === null || system === void 0 ? void 0 : system.onRemove) === null || _h === void 0 ? void 0 : _h.call(system, entity.id));
                                }
                                catch (e) {
                                    console.warn(`Error catch system::${system.id} "onRemove(${entity.id})"`);
                                    console.error(e);
                                }
                                const systemEntities = systemEntitiesMap[system.id];
                                systemEntitiesMap[system.id] = (_j = systemEntities === null || systemEntities === void 0 ? void 0 : systemEntities.filter((_id) => _id !== entity.id)) !== null && _j !== void 0 ? _j : [];
                            }
                            finally {
                                _l = true;
                            }
                        }
                    }
                    catch (e_8_1) { e_8 = { error: e_8_1 }; }
                    finally {
                        try {
                            if (!_l && !_d && (_e = systemList_5.return)) await _e.call(systemList_5);
                        }
                        finally { if (e_8) throw e_8.error; }
                    }
                    delete entityList[entity.id];
                    delete entityComponentMap[entity.id];
                    typeEntityMap[entity.type] = typeEntityMap[entity.type].filter((entityId) => entity.id !== entityId);
                }
                finally {
                    _k = true;
                }
            }
        }
        catch (e_7_1) { e_7 = { error: e_7_1 }; }
        finally {
            try {
                if (!_k && !_a && (_b = _entityList_1.return)) await _b.call(_entityList_1);
            }
            finally { if (e_7) throw e_7.error; }
        }
    };
    const getSystem = (id) => systems[id];
    const clear = () => {
        systems = [];
        entityList = [];
        typeEntityMap = {};
        entityComponentMap = [];
        entityDataMap = [];
        systemEntitiesMap = [];
    };
    const load = async () => {
        var _a, e_9, _b, _c;
        var _d;
        try {
            for (var _e = true, systems_1 = __asyncValues(systems), systems_1_1; systems_1_1 = await systems_1.next(), _a = systems_1_1.done, !_a;) {
                _c = systems_1_1.value;
                _e = false;
                try {
                    const system = _c;
                    await ((_d = system === null || system === void 0 ? void 0 : system.onLoad) === null || _d === void 0 ? void 0 : _d.call(system));
                }
                finally {
                    _e = true;
                }
            }
        }
        catch (e_9_1) { e_9 = { error: e_9_1 }; }
        finally {
            try {
                if (!_e && !_a && (_b = systems_1.return)) await _b.call(systems_1);
            }
            finally { if (e_9) throw e_9.error; }
        }
    };
    const hardReload = async () => {
        var _a, e_10, _b, _c, _d, e_11, _e, _f, _g, e_12, _h, _j, _k, e_13, _l, _m;
        try {
            for (var _o = true, _p = __asyncValues([...systems].reverse().filter(Boolean)), _q; _q = await _p.next(), _a = _q.done, !_a;) {
                _c = _q.value;
                _o = false;
                try {
                    const system = _c;
                    const entities = systemEntitiesMap[system.id];
                    try {
                        for (var _r = true, _s = (e_11 = void 0, __asyncValues([...entities].reverse())), _t; _t = await _s.next(), _d = _t.done, !_d;) {
                            _f = _t.value;
                            _r = false;
                            try {
                                const entityId = _f;
                                (system === null || system === void 0 ? void 0 : system.onRemove) && (await (system === null || system === void 0 ? void 0 : system.onRemove(entityId)));
                            }
                            finally {
                                _r = true;
                            }
                        }
                    }
                    catch (e_11_1) { e_11 = { error: e_11_1 }; }
                    finally {
                        try {
                            if (!_r && !_d && (_e = _s.return)) await _e.call(_s);
                        }
                        finally { if (e_11) throw e_11.error; }
                    }
                    (system === null || system === void 0 ? void 0 : system.onDestroy) && (await (system === null || system === void 0 ? void 0 : system.onDestroy()));
                }
                finally {
                    _o = true;
                }
            }
        }
        catch (e_10_1) { e_10 = { error: e_10_1 }; }
        finally {
            try {
                if (!_o && !_a && (_b = _p.return)) await _b.call(_p);
            }
            finally { if (e_10) throw e_10.error; }
        }
        try {
            for (var _u = true, _v = __asyncValues([...systems].filter(Boolean)), _w; _w = await _v.next(), _g = _w.done, !_g;) {
                _j = _w.value;
                _u = false;
                try {
                    const system = _j;
                    (system === null || system === void 0 ? void 0 : system.onLoad) && (await (system === null || system === void 0 ? void 0 : system.onLoad()));
                    const entities = systemEntitiesMap[system.id];
                    try {
                        for (var _x = true, _y = (e_13 = void 0, __asyncValues([...entities])), _z; _z = await _y.next(), _k = _z.done, !_k;) {
                            _m = _z.value;
                            _x = false;
                            try {
                                const entityId = _m;
                                (system === null || system === void 0 ? void 0 : system.onAdd) && (await (system === null || system === void 0 ? void 0 : system.onAdd(entityId)));
                            }
                            finally {
                                _x = true;
                            }
                        }
                    }
                    catch (e_13_1) { e_13 = { error: e_13_1 }; }
                    finally {
                        try {
                            if (!_x && !_k && (_l = _y.return)) await _l.call(_y);
                        }
                        finally { if (e_13) throw e_13.error; }
                    }
                }
                finally {
                    _u = true;
                }
            }
        }
        catch (e_12_1) { e_12 = { error: e_12_1 }; }
        finally {
            try {
                if (!_u && !_g && (_h = _v.return)) await _h.call(_v);
            }
            finally { if (e_12) throw e_12.error; }
        }
    };
    const debug = () => {
        const swapSystem = async (systemId, system) => {
            var _a, e_14, _b, _c, _d, e_15, _e, _f;
            var _g, _h;
            const currentSystem = systems[systemId];
            const entities = systemEntitiesMap[systemId];
            // Remove current entities from system
            if (currentSystem.onRemove) {
                try {
                    for (var _j = true, _k = __asyncValues([...entities].reverse()), _l; _l = await _k.next(), _a = _l.done, !_a;) {
                        _c = _l.value;
                        _j = false;
                        try {
                            const entityId = _c;
                            await currentSystem.onRemove(entityId);
                        }
                        finally {
                            _j = true;
                        }
                    }
                }
                catch (e_14_1) { e_14 = { error: e_14_1 }; }
                finally {
                    try {
                        if (!_j && !_a && (_b = _k.return)) await _b.call(_k);
                    }
                    finally { if (e_14) throw e_14.error; }
                }
            }
            // Destroy current system
            if (currentSystem.onDestroy)
                await currentSystem.onDestroy();
            const swappedSystem = (await system());
            swappedSystem.id = currentSystem.id;
            swappedSystem.name = currentSystem.name;
            systems[systemId] = swappedSystem;
            // Load current system
            if (currentSystem === null || currentSystem === void 0 ? void 0 : currentSystem.onLoad)
                await ((_g = swappedSystem.onLoad) === null || _g === void 0 ? void 0 : _g.call(swappedSystem));
            // Add current entities to swapped system
            if (currentSystem.onAdd) {
                try {
                    for (var _m = true, _o = __asyncValues([...entities]), _p; _p = await _o.next(), _d = _p.done, !_d;) {
                        _f = _p.value;
                        _m = false;
                        try {
                            const entityId = _f;
                            await ((_h = swappedSystem.onAdd) === null || _h === void 0 ? void 0 : _h.call(swappedSystem, entityId));
                        }
                        finally {
                            _m = true;
                        }
                    }
                }
                catch (e_15_1) { e_15 = { error: e_15_1 }; }
                finally {
                    try {
                        if (!_m && !_d && (_e = _o.return)) await _e.call(_o);
                    }
                    finally { if (e_15) throw e_15.error; }
                }
            }
        };
        const getSystem = (name) => Object.values(systems).find((system) => system.name === name);
        return {
            swapSystem,
            getSystem,
        };
    };
    return {
        setSystems,
        getEntityList,
        getEntityListByType,
        getEntityListByComponents,
        getEntity,
        addEntity,
        removeEntity,
        getSystem,
        clear,
        load,
        hardReload,
        __debug__: debug(),
    };
};