Module 5, first update

Classnotes/Module-5/5.1.Platformer/Assets/HeroMovement.cs

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+using System.Collections;
+using System.Collections.Generic;
+using Unity.VisualScripting;
+using UnityEngine;
+
+public class HeroMovement : MonoBehaviour
+{
+    private Rigidbody2D mHeroPhysics;
+    [SerializeField] private float mSpeed = 3f;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        mHeroPhysics = GetComponent<Rigidbody2D>();  
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        float d = mSpeed * Time.smoothDeltaTime;
+
+        if (Input.GetKey(KeyCode.A)) {
+            transform.localPosition += new Vector3(-d, 0, 0);
+                // Note: this is updating the position (no physics)
+        }
+
+        if (Input.GetKey(KeyCode.D)) {
+            Collider2D other = GameObject.Find("ThePlatform - Brown").GetComponent<Collider2D>();
+            if (mHeroPhysics.IsTouching(other)) { // can only move right when on platform
+                Debug.Log("Hero is touching: " + other.gameObject);
+                mHeroPhysics.velocity = new Vector2(mSpeed, 0);
+                // Note: this is changing velocity
+            }
+        }
+
+        if (Input.GetKey(KeyCode.W)) {
+            transform.localPosition += new Vector3(0, d, 0);
+                // Note: this is updating the position (no physics)
+        }
+
+        if (Input.GetKey(KeyCode.Space)) {
+            mHeroPhysics.velocity = new Vector2(0, mSpeed);
+                // Note: this is changing velocity
+        }
+
+    }
+
+    void OnCollisionEnter2D(Collision2D other) {
+        // Note: the Hero's Collider.isTriggered is OFF
+        //   When this is off, will collide with all Collider2D with isTriggered Off
+        Debug.Log("Hero CollisionEnter:" + other.gameObject.name);
+    }
+
+    void OnCollisionStay2D(Collision2D other) {
+        Debug.Log("Hero CollisionStay:" + other.gameObject.name);
+    }
+
+    void OnCollisionExit2D(Collision2D other) {
+        Debug.Log("Hero CollisionExit:" + other.gameObject.name);
+    }
+
+    void OnTriggerEnter2D(Collider2D other) {
+        Debug.Log("Hero TriggerEnter:" + other.gameObject.name);
+    }
+
+    void OnTriggerStay2D(Collider2D other) {
+        Debug.Log("Hero TriggerStay:" + other.gameObject.name);
+    }
+
+    void OnTriggerExit2D(Collider2D other) {
+        Debug.Log("Hero TriggerExit:" + other.gameObject.name);
+    }
+}