3 files changed, 41 insertions, 0 deletions
diff --git a/src/engine/entities/Entity.ts b/src/engine/entities/Entity.ts
new file mode 100644
index 0000000..18ee5d0
--- /dev/null
+++ b/src/engine/entities/Entity.ts
@@ -0,0 +1,34 @@
+import { type Component } from "../components";
+
+const randomId = () => (Math.random() * 1_000_000_000).toString();
+
+export abstract class Entity {
+  public id: string;
+  public components: Map<string, Component>;
+  public name: string;
+
+  constructor(name: string, id: string = randomId()) {
+    this.name = name;
+    this.id = id;
+    this.components = new Map();
+  }
+
+  public addComponent(component: Component) {
+    this.components.set(component.name, component);
+  }
+
+  public getComponent<T extends Component>(name: string): T {
+    if (!this.hasComponent(name)) {
+      throw new Error("Entity does not have component " + name);
+    }
+    return this.components.get(name) as T;
+  }
+
+  public getComponents(): Component[] {
+    return Array.from(this.components.values());
+  }
+
+  public hasComponent(name: string): boolean {
+    return this.components.has(name);
+  }
+}
diff --git a/src/engine/entities/EntityNames.ts b/src/engine/entities/EntityNames.ts
new file mode 100644
index 0000000..59010fc
--- /dev/null
+++ b/src/engine/entities/EntityNames.ts
@@ -0,0 +1,5 @@
+export namespace EntityNames {
+  export const Player = "Player";
+  export const Wall = "Wall";
+  export const Ball = "Ball";
+}
diff --git a/src/engine/entities/index.ts b/src/engine/entities/index.ts
new file mode 100644
index 0000000..ee26a63
--- /dev/null
+++ b/src/engine/entities/index.ts
@@ -0,0 +1,2 @@
+export * from "./Entity";
+export * from "./EntityNames";