refactor spawners

1 files changed, 34 insertions, 0 deletions

diff --git a/src/engine/systems/Spawner.ts b/src/engine/systems/Spawner.ts
new file mode 100644
index 0000000..6a4d382
--- /dev/null
+++ b/src/engine/systems/Spawner.ts
@@ -0,0 +1,34 @@
+import { System, SystemNames } from ".";
+import { Game } from "..";
+import { ComponentNames, Grid, GridSpawn } from "../components";
+import { FunctionBox } from "../entities";
+
+export class GridSpawner extends System {
+  constructor() {
+    super(SystemNames.GridSpawner);
+  }
+
+  public update(_dt: number, game: Game) {
+    game.forEachEntityWithComponent(ComponentNames.GridSpawn, (entity) => {
+      const lambdaSpawn = entity.getComponent<GridSpawn>(
+        ComponentNames.GridSpawn,
+      )!;
+      const hasGrid = entity.hasComponent(SystemNames.Grid);
+
+      if (!lambdaSpawn.direction || !hasGrid) {
+        return;
+      }
+
+      const grid = entity.getComponent<Grid>(SystemNames.Grid)!;
+
+      const lambda = new FunctionBox(grid.gridPosition, lambdaSpawn.code);
+      const lambdaGrid = lambda.getComponent<Grid>(SystemNames.Grid)!;
+      lambdaGrid.movingDirection = lambdaSpawn.direction;
+      lambda.addComponent(lambdaGrid);
+      game.addEntity(lambda);
+
+      lambdaSpawn.direction = null;
+      entity.addComponent(lambdaSpawn);
+    });
+  }
+}