Crops !

client/systems/crop_system.ts

@@ -0,0 +1,45 @@
+import { System } from "$/common/ecs/mod.ts";
+import { Sprite } from "../components/sprite.ts";
+import { ClientWorld } from "../client_world.ts";
+import { Crop } from "$/client/components/crop.ts";
+import { get_sprite_region } from "$/common/utils.ts";
+import { ClickableSprite } from "../components/clickable.ts";
+import { ItemStack, PlayerInventory } from "../components/inventory.ts";
+
+export class CropSystem extends System {
+	update(world: ClientWorld, delta: number): void {
+		for (const entity of world.get_entities()) {
+			const crop = entity.get(Crop);
+
+			if (!crop) {
+				continue;
+			}
+
+			// finished growing, very good
+			if (crop.total_stages === crop.current_stage + 1) {
+				const clickable_sprite = entity.get(ClickableSprite);
+				if (clickable_sprite && clickable_sprite.clicked) {
+					const [player] = world.get_tag("player")!;
+					const inventory = player.get(PlayerInventory)!;
+					inventory.container.add_item(new ItemStack(crop.item_drop));
+					world.delete_entity(entity);
+				}
+				continue;
+			}
+
+			crop.growth_time += delta;
+			if (crop.growth_time >= crop.time_to_grow[crop.current_stage]) {
+				crop.current_stage += 1;
+				crop.growth_time = 0;
+			}
+
+			const sprite = entity.get(Sprite);
+
+			if (sprite) {
+				const region = get_sprite_region(crop.sprite_ids[crop.current_stage]);
+				sprite.source_x = region.x * 16;
+				sprite.source_y = region.y * 16;
+			}
+		}
+	}
+}