finished portal fundimentals

Assets/Scripts/GridMovement.cs

@@ -0,0 +1,92 @@
+//GridMovement.cs
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class GridMovement : MonoBehaviour
+{
+    [SerializeField] private float moveTime = 0.3f;
+    [SerializeField] private AnimationCurve spacing;
+    
+    private bool isMoving;
+    private Animator animator;
+    private MapInfo map;
+
+    void Start()
+    {
+        animator = GetComponent<Animator>();
+        animator.SetFloat("y", -1);
+        map = FindObjectOfType<MapInfo>();
+    }
+
+    private void Update()
+    {
+        if (Input.GetKeyDown(KeyCode.W)) 
+        {
+            Walk(Vector3.up);
+        }
+        else if (Input.GetKeyDown(KeyCode.S))
+        {
+            Walk(Vector3.down);
+        }
+        else if (Input.GetKeyDown(KeyCode.A))
+        {
+            Walk(Vector3.left);
+        }
+        else if (Input.GetKeyDown(KeyCode.D))
+        {
+            Walk(Vector3.right);
+        }
+    }
+
+    public bool Walk(Vector3 direction)
+    {
+        if (isMoving) 
+            return false;
+    
+        if (!IsPositionWalkable(transform.position + direction))
+            return false;
+        
+        StartCoroutine(WalkCoroutine(direction, moveTime));
+        return true;
+    }
+
+    private bool IsPositionWalkable(Vector3 pos)
+    {
+        if (Physics2D.OverlapPoint(pos) != null)
+            return false;
+
+        if (map != null)
+        {
+            return map.IsPositionInBounds(pos);
+        }
+
+        return true;
+    }
+
+    private IEnumerator WalkCoroutine(Vector3 direction, float duration)
+    {
+        Vector3 from = transform.position;
+        Vector3 to = from + direction;
+
+        animator.SetFloat("x", direction.x);
+        animator.SetFloat("y", direction.y);
+        animator.SetFloat("speed", 1f);
+        if (duration < float.Epsilon)
+        {
+            transform.position = to;
+            yield break;
+        }
+
+        isMoving = true;
+        float aggregate = 0;
+        while (aggregate < 1f)
+        {
+            aggregate += Time.deltaTime / duration;
+            transform.position = Vector3.Lerp(from, to, spacing.Evaluate(aggregate));
+            yield return null;
+        }
+        isMoving = false;
+        animator.SetFloat("speed", 0f);
+    }
+}