AI

2 files changed, 40 insertions, 3 deletions

diff --git a/scripts/map/DungeonGenerator.cs b/scripts/map/DungeonGenerator.cs
index 9a2ceae..ebb7a3d 100644
--- a/scripts/map/DungeonGenerator.cs
+++ b/scripts/map/DungeonGenerator.cs
@@ -2,8 +2,8 @@ using Godot;
 
 public partial class DungeonGenerator : Node
 {
-	private static readonly Godot.Collections.Array<ActorDefinition> enemies = [
-		GD.Load<ActorDefinition>("res://assets/definitions/actor/Skeleton.tres")
+	private static readonly Godot.Collections.Array<EnemyDefinition> enemies = [
+		GD.Load<EnemyDefinition>("res://assets/definitions/actor/Skeleton.tres")
 	];
 
 	[ExportCategory("Dimension")]
@@ -87,6 +87,7 @@ public partial class DungeonGenerator : Node
 			PlaceEntities(data, room);
 		}
 
+		data.SetupPathfinding();
 		return data;
 	}
 
@@ -108,7 +109,7 @@ public partial class DungeonGenerator : Node
 			}
 
 			if (canPlace) {
-				ActorDefinition definition = enemies.PickRandom();
+				EnemyDefinition definition = enemies.PickRandom();
 				Enemy enemy = new Enemy(position, data, definition);
 				data.InsertActor(enemy);
 			}
diff --git a/scripts/map/MapData.cs b/scripts/map/MapData.cs
index ea18b4b..be466ba 100644
--- a/scripts/map/MapData.cs
+++ b/scripts/map/MapData.cs
@@ -15,6 +15,42 @@ public partial class MapData : RefCounted
 	public Player Player { get; set; }
 	public Godot.Collections.Array<Actor> Actors { get; private set; } = [];
 
+	private AStarGrid2D pathfinder;
+	public AStarGrid2D Pathfinder { get => pathfinder; }
+	private static float ActorWeight = 10.0f;
+
+	public void SetupPathfinding() {
+		pathfinder = new AStarGrid2D
+		{
+			Region = new Rect2I(0, 0, Width, Height)
+		};
+
+		pathfinder.Update();
+
+		for (int y = 0; y < Height; y++) {
+			for (int x = 0; x < Width; x++) {
+				Vector2I pos = new Vector2I(x, y);
+				Tile tile = GetTile(pos);
+				pathfinder.SetPointSolid(pos, !tile.IsWalkable);
+			}
+		}
+
+		foreach (Actor actor in Actors) {
+			if (actor.BlocksMovement) {
+				RegisterBlockingActor(actor);
+			}
+		}
+
+	}
+
+	public void RegisterBlockingActor(Actor actor) {
+		pathfinder.SetPointWeightScale(actor.GridPosition, ActorWeight);
+	}
+
+	public void UnregisterBlockingActor(Actor actor) {
+		pathfinder.SetPointWeightScale(actor.GridPosition, 0);
+	}
+
 	public MapData(int width, int height, Player player) {
 		Width = width;
 		Height = height;