Initial commit

2026-02-24 15:36:10 -03:00
commit fe885a9e24
42 changed files with 2383 additions and 0 deletions
@@ -0,0 +1,75 @@
+import { System } from "$/common/ecs/mod.ts";
+import { World } from "$/common/ecs/world.ts";
+import { Position } from "$/common/components/position.ts";
+import { AnimatedSprite, Sprite } from "$/client/components/sprite.ts";
+import { Tilemap } from "$/client/components/tilemap.ts";
+import { PlayerInventory } from "$/client/components/inventory.ts";
+import { Camera } from "$/client/components/camera.ts";
+
+import { render_animated_sprite, render_sprite } from "./rendering/sprites.ts";
+import { render_tilemap } from "./rendering/tilemap.ts";
+import { render_player_inventory } from "./rendering/player.ts";
+
+export class RenderSystem extends System {
+	ctx: CanvasRenderingContext2D;
+
+	constructor(ctx: CanvasRenderingContext2D) {
+		super();
+		this.ctx = ctx;
+	}
+
+	update(world: World, _delta: number): void {
+		this.ctx.save();
+		this.ctx.setTransform(1, 0, 0, 1, 0, 0);
+
+		const camera_entity = world.get_entities().values().find((e) => e.get(Camera)?.active);
+		const camera = camera_entity?.get(Camera);
+
+		if (!camera) {
+			return;
+		}
+
+		for (const entity of world.get_entities()) {
+			this.ctx.save();
+			this.ctx.translate(
+				Math.floor(this.ctx.canvas.width / 2),
+				Math.floor(this.ctx.canvas.height / 2),
+			);
+
+			this.ctx.scale(camera.zoom, camera.zoom);
+
+			this.ctx.translate(
+				-Math.floor(camera.x),
+				-Math.floor(camera.y),
+			);
+
+			const position = entity.get(Position);
+			const sprite = entity.get(Sprite);
+
+			if (sprite && position) {
+				render_sprite(this.ctx, sprite, position);
+			}
+
+			const animated_sprite = entity.get(AnimatedSprite);
+
+			if (animated_sprite && position) {
+				render_animated_sprite(this.ctx, animated_sprite, position);
+			}
+
+			const tilemap = entity.get(Tilemap);
+
+			if (tilemap) {
+				render_tilemap(this.ctx, tilemap);
+			}
+
+			// Ui
+			this.ctx.restore();
+
+			const player_inventory = entity.get(PlayerInventory);
+
+			if (player_inventory && player_inventory.is_open) {
+				render_player_inventory(this.ctx, player_inventory);
+			}
+		}
+	}
+}