Navigation for enemies

Scripts/Actors/NavigationTestEnemy.cs

@@ -0,0 +1,87 @@
+using Godot;
+using System;
+
+public partial class NavigationTestEnemy : CharacterBody2D
+{
+	[Export]
+	private float _movementSpeed = 300.0f;
+	public const float JumpVelocity = -400.0f;
+
+	private NavigationAgent2D _navigationAgent;
+
+	public override void _Ready()
+	{
+		_navigationAgent = GetNode<NavigationAgent2D>("NavigationAgent2D");
+	}
+
+	public override void _PhysicsProcess(double delta)
+	{
+		var mousePosition = GetGlobalMousePosition();
+		_navigationAgent.TargetPosition = mousePosition;
+
+		var currentAgentPosition = GlobalPosition;
+
+		var nexPathPosition = _navigationAgent.GetNextPathPosition();
+		
+		var newVelocity = currentAgentPosition.DirectionTo(nexPathPosition) * (_movementSpeed);
+
+		// Navigation is over, can do other things
+		if (_navigationAgent.IsNavigationFinished())
+		{
+			
+			return;
+		}
+		
+		if (_navigationAgent.AvoidanceEnabled)
+		{
+			_navigationAgent.SetVelocity(newVelocity);
+			
+		}
+		else
+		{
+			_on_navigation_agent_2d_velocity_computed(newVelocity);
+		}
+
+		MoveAndSlide();
+	}
+	
+	public void _on_navigation_agent_2d_velocity_computed(Vector2 safeVelocity)
+	{
+		this.Velocity = safeVelocity; 
+		
+	}
+
+	// public override void _PhysicsProcess(double delta)
+	// {
+	// 	Vector2 velocity = Velocity;
+	//
+	// 	// Add the gravity.
+	// 	if (!IsOnFloor())
+	// 	{
+	// 		velocity += GetGravity() * (float)delta;
+	// 	}
+	//
+	// 	// Handle Jump.
+	// 	if (Input.IsActionJustPressed("ui_accept") && IsOnFloor())
+	// 	{
+	// 		velocity.Y = JumpVelocity;
+	// 	}
+	//
+	// 	// Get the input direction and handle the movement/deceleration.
+	// 	// As good practice, you should replace UI actions with custom gameplay actions.
+	// 	Vector2 direction = Input.GetVector("ui_left", "ui_right", "ui_up", "ui_down");
+	// 	if (direction != Vector2.Zero)
+	// 	{
+	// 		velocity.X = direction.X * Speed;
+	// 	}
+	// 	else
+	// 	{
+	// 		velocity.X = Mathf.MoveToward(Velocity.X, 0, Speed);
+	// 	}
+	//
+	// 	Velocity = velocity;
+	// 	MoveAndSlide();
+	// }
+
+	
+}

Scripts/Enemy.cs

@@ -3,7 +3,7 @@ using Godot;
 using System;
 using System.Diagnostics;
 
-public partial class Enemy : Area2D, IDestructible
+public partial class Enemy : CharacterBody2D, IDestructible
 {
 	private InteractionController _cachedPlayer;
 	private EnemyState _currentState = EnemyState.Idle;
@@ -61,18 +61,47 @@ public partial class Enemy : Area2D, IDestructible
 
 	public override void _PhysicsProcess(double delta)
 	{
-		HandlePlayerDetection();
 		if (NavigationEnabled)
 		{
-			var moveLocation = _navigationAgent.GetNextPathPosition();
-			
+			// Only do these actions if the enemy has been alerted
 			if (_currentState is EnemyState.Primed)
 			{
-				this.Position = moveLocation;
+				_navigationAgent.SetTargetPosition(_cachedPlayer.GlobalPosition);
+				
+				var currentAgentPosition = GlobalPosition;
+			
+				var nextPathPosition = _navigationAgent.GetNextPathPosition();
+
+				var newVelocity = currentAgentPosition.DirectionTo(nextPathPosition) * (float)(WalkSpeed * delta);
+				
+				
+				// Navigation is over, can do other things like shooting
+				if (_navigationAgent.IsNavigationFinished())
+				{
+					// Shoot player
+					HandlePlayerDetection();
+					return;
+				}
+				
+				if (_navigationAgent.AvoidanceEnabled)
+				{
+					_navigationAgent.SetVelocity(newVelocity);
+			
+				}
+				else
+				{
+					_on_navigation_agent_2d_velocity_computed(newVelocity);
+				}
+
+				MoveAndSlide();
+				
 			}
 		}
-		
-		
+	}
+	
+	public void _on_navigation_agent_2d_velocity_computed(Vector2 safeVelocity)
+	{
+		this.Velocity = safeVelocity; 
 		
 	}
 
@@ -86,10 +115,10 @@ public partial class Enemy : Area2D, IDestructible
 		if (IsPlayerInSight())
 		{
 			// Update player position only if player is in sight
-			if (NavigationEnabled)
-			{
-				_navigationAgent.SetTargetPosition(_cachedPlayer.GlobalPosition);
-			}
+			// if (NavigationEnabled)
+			// {
+			// 	_navigationAgent.SetTargetPosition(_cachedPlayer.GlobalPosition);
+			// }
 			Shoot();
 
 			
@@ -167,7 +196,7 @@ public partial class Enemy : Area2D, IDestructible
 	{
 		
 	}
-
+	
 	private void Explode()
 	{
 		Debug.WriteLine("Ded");

Scripts/TilemapAvoidance.cs

@@ -0,0 +1,34 @@
+using Godot;
+using System;
+
+public partial class TilemapAvoidance : TileMapLayer
+{
+
+	[Export] private TileMapLayer _solidLayer;
+	
+	// Called when the node enters the scene tree for the first time.
+	public override void _Ready()
+	{
+		
+	}
+
+	// Called every frame. 'delta' is the elapsed time since the previous frame.
+	public override void _Process(double delta)
+	{
+	}
+
+	public override bool _UseTileDataRuntimeUpdate(Vector2I coords)
+	{
+		if (_solidLayer.GetUsedCellsById(0).Contains(coords))
+		{
+			return true;
+		}
+
+		return false;
+	}
+
+	public override void _TileDataRuntimeUpdate(Vector2I coords, TileData tileData)
+	{
+		tileData.SetNavigationPolygon(0, null);
+	}
+}