added collision

src/Player.cs

@@ -1,32 +1,39 @@
 using Godot;
 using System;
 
-public class Player : Area2D
+public class Player : KinematicBody2D
 {
+    private Vector2 velocity;
+
     [Export]
     public int speed = 400;
-    public override void _Ready()
-    {
-        
-    }
 
-  public override void _Process(float delta)
-  {
+    public override void _PhysicsProcess(float delta)
+    {
+        GetInput();
+        MoveAndCollide(velocity * delta);
+    }
+  
+    public void GetInput()
+    {
+        velocity = new Vector2();
         if (Input.IsActionPressed("move_left"))
         {
-            Position -= new Vector2(speed, 0) * delta;
+            velocity.x -= speed;
         }
         if (Input.IsActionPressed("move_right"))
         {
-            Position += new Vector2(speed, 0) * delta;
+            velocity.x += speed;
         }
         if (Input.IsActionPressed("move_up"))
         {
-            Position -= new Vector2(0, speed) * delta;
+            velocity.y -= speed;
         }
         if (Input.IsActionPressed("move_down"))
         {
-            Position += new Vector2(0, speed) * delta;
+            velocity.y += speed;
         }
     }
+
+
 }