1 files changed, 45 insertions, 0 deletions
diff --git a/static/src/engine/entity.ts b/static/src/engine/entity.ts
new file mode 100644
index 0000000..2c8d38e
--- /dev/null
+++ b/static/src/engine/entity.ts
@@ -0,0 +1,45 @@
+import {
+  Component,
+  ComponentType,
+  PositionComponent,
+  RenderableComponent,
+  TrailingPositionComponent,
+} from "./component";
+
+export enum EntityType {
+  LASER = "LASER",
+  CAT = "CAT",
+}
+
+export interface Entity {
+  entity_type: EntityType;
+  id: string;
+  components: Record<ComponentType, Component>;
+}
+
+export const create_laser = (base: Entity) => {
+  const trailing_position: TrailingPositionComponent = {
+    name: ComponentType.TRAILING_POSITION,
+    trails: [],
+  };
+  base.components[ComponentType.TRAILING_POSITION] = trailing_position;
+
+  const renderable: RenderableComponent = {
+    name: ComponentType.RENDERABLE,
+  };
+  base.components[ComponentType.RENDERABLE] = renderable;
+  return base;
+};
+
+export const create_cat = (base: Entity) => {
+  const renderable: RenderableComponent = {
+    name: ComponentType.RENDERABLE,
+  };
+  base.components[ComponentType.RENDERABLE] = renderable;
+  base.components[ComponentType.POSITION] = {
+    component: ComponentType.POSITION,
+    x: Math.random() * 1_000,
+    y: Math.random() * 1_000,
+  } as unknown as PositionComponent; // TODO: hack
+  return base;
+};