Rooms, items and some player stuff

src/framework/world/query.js

@@ -0,0 +1,27 @@
+export class Query {
+    constructor(include, exclude) {
+        this.include = include;
+        this.exclude = exclude;
+        this.isDirty = true;
+        this.results = new Array();
+        this.includeComponentIds = include.map((component) => component.id);
+        this.excludeComponentIds = exclude.map((component) => component.id);
+    }
+    execute(world) {
+        if (!this.isDirty && this.results) {
+            return this.results;
+        }
+        let filtered;
+        const entities = world.entities.filter(entity => {
+            let ids = entity.components.map(component => component.id);
+            let includes = ids.map(id => this.includeComponentIds.includes(id)).includes(true);
+            let excludes = ids.map(id => this.excludeComponentIds.includes(id)).includes(true);
+            return includes && !excludes;
+        });
+        if (entities.length > 0) {
+            this.isDirty = false;
+            this.results = entities;
+        }
+        return entities;
+    }
+}