- return false;
- },
-
- /*
- * Given a Node Class, retrieves a list of all the nodes for each
- * applicable entity.
- */
- getNodes : function getNodes(nodeType) {
- var position, nodeCollection;
-
- position = this._nodeCollectionKeys.indexOf(nodeType);
-
- if (position >= 0) {
- return this._nodeCollections[position].nodes;
- }
-
- nodeCollection = new Serpentity.NodeCollection({
- type : nodeType,
- });
-
- this._nodeCollectionKeys.push(nodeType);
- this._nodeCollections.push(nodeCollection);
-
- this.entities.forEach(function (entity) {
- nodeCollection.add(entity);
- });
-
- return nodeCollection.nodes;
- },
-
- /*
- * Calls update for every loaded system.
- */
- update : function update(dt) {
- this.systems.forEach(function (system) {
- system.update(dt);
- });
- }
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Serpentity = function () {
+ function Serpentity(config) {
+ _classCallCheck(this, Serpentity);
+
+ this.systems = [];
+ this.entities = [];
+ this._nodeCollections = [];
+ this._nodeCollectionKeys = [];
+
+ Object.assign(this, config || {});
+ }
+
+ /*
+ * Adds a system to the engine, so its update method will be called
+ * with the others. Triggers added hook.
+ *
+ * returns true if added succesfully, false if already added
+ */
+
+
+ _createClass(Serpentity, [{
+ key: 'addSystem',
+ value: function addSystem(system, priority) {
+ var lastIndex = void 0,
+ found = void 0;
+
+ if (this.systems.indexOf(system) >= 0) {
+ return false;
+ }
+
+ system.priority = priority;
+
+ found = false;
+ lastIndex = 0;
+
+ this.systems.some(function findPriority(existingSystem, i) {
+ lastIndex = i;
+ if (existingSystem.priority >= system.priority) {
+ found = true;
+ return true;
+ }
+ });
+
+ if (!found) {
+ lastIndex += 1;
+ }
+
+ this.systems.splice(lastIndex, 0, system);
+ system.added(this);
+ return true;
+ }
+
+ /*
+ * Removes a system from the engine, so its update method will no
+ * longer will be called. Triggers the removed hook.
+ *
+ * returns true if removed succesfully, false if already added
+ */
+
+ }, {
+ key: 'removeSystem',
+ value: function removeSystem(system) {
+ var position = void 0;
+
+ position = this.systems.indexOf(system);
+ if (position >= 0) {
+ this.systems[position].removed(this);
+ this.systems.splice(position, 1);
+ return true;
+ }
+
+ return false;
+ }
+
+ /*
+ * Adds an entity to the engine, adds to existing node collections
+ *
+ * returns true if added, false if already there
+ */
+
+ }, {
+ key: 'addEntity',
+ value: function addEntity(entity) {
+ if (this.entities.indexOf(entity) >= 0) {
+ return false;
+ }
+ this.entities.push(entity);
+
+ this._nodeCollections.forEach(function (collection) {
+ collection.add(entity);
+ });
+
+ return true;
+ }
+
+ /*
+ * Removes entity from system, removing from all node collections
+ *
+ * returns true if removed, false if not present
+ */
+
+ }, {
+ key: 'removeEntity',
+ value: function removeEntity(entity) {
+ var position = void 0;
+
+ position = this.entities.indexOf(entity);
+ if (position >= 0) {
+ this._nodeCollections.forEach(function (collection) {
+ collection.remove(entity);
+ });
+
+ this.entities.splice(position, 1);
+ return true;
+ }
+
+ return false;
+ }
+
+ /*
+ * Given a Node Class, retrieves a list of all the nodes for each
+ * applicable entity.
+ */
+
+ }, {
+ key: 'getNodes',
+ value: function getNodes(nodeType) {
+ var position = void 0,
+ nodeCollection = void 0;
+
+ position = this._nodeCollectionKeys.indexOf(nodeType);
+
+ if (position >= 0) {
+ return this._nodeCollections[position].nodes;
+ }
+
+ nodeCollection = new Serpentity.NodeCollection({
+ type: nodeType
+ });
+
+ this._nodeCollectionKeys.push(nodeType);
+ this._nodeCollections.push(nodeCollection);
+
+ this.entities.forEach(function (entity) {
+ nodeCollection.add(entity);
+ });
+
+ return nodeCollection.nodes;
+ }
+
+ /*
+ * Calls update for every loaded system.
+ */
+
+ }, {
+ key: 'update',
+ value: function update(dt) {
+ this.systems.forEach(function (system) {
+ system.update(dt);
+ });
git.r.bdr.sh / rbdr / serpentity / blobdiff