How to Make Video Games 29
In this part of my How to Make Video Games series I will continue making a Zelda clone. I’ll create animations for the villains and animate them. I’ll also cover a new way to animate Link’s sword from inside of code. We’ll use coroutines to make items show and then disappear on the screen and a whole lot more.
All of the code used follows the video down below. As always feel free to do what ever you’d like with it.
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Code From the Video
Villain.cs
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using System.Collections; using System.Collections.Generic; using UnityEngine; public class Villain : MonoBehaviour { // NEW STUFF 1 public float speed = 2f; // The villains will all start going right when loaded Vector2 direction = Vector2.right; // Keeps track of if Villain is chasing or not bool chasing = false; // END OF NEW STUFF 1 // NEW STUFF 2 // Get reference to the Animator so I can change animations private Animator animator; // Reference to Link GameObject linkGO; Rigidbody2D rb; void Awake(){ // Get reference to Link linkGO = GameObject.Find("Link"); // Get reference to rigid body rb = GetComponent<Rigidbody2D> (); animator = GetComponent<Animator> (); } // END OF NEW STUFF 2 // NEW STUFF 1 void FixedUpdate(){ // Change the direction as needed GetComponent<Rigidbody2D> ().velocity = direction * speed; /* transform.position = Vector3.MoveTowards (transform.position, linkGO.transform.position, .03f); */ } // Handles changing direction when we hit VillainStart and end void OnTriggerEnter2D(Collider2D col){ if (!chasing) { // When we collide make the Villain go in the opposite direction transform.localScale = new Vector2 (-1 * transform.localScale.x, transform.localScale.y); // Change direction direction = new Vector2 (-1 * direction.x, direction.y); } // END OF NEW STUFF 1 // NEW STUFF 2 else { } // if(col.gameObject.name == "Link") // END OF NEW STUFF 2 } } |
Link2.cs
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using System.Collections; using System.Collections.Generic; using UnityEngine; // Used so I can use Floor using System; public class Link2 : MonoBehaviour { // Speed Link moves public float speed; // Used to move Link private Rigidbody2D rb; // Used to access the function IsValidSpace in Gameboard.cs // Gameboard gameBoard; // Get reference to the SoundManager for functions // SoundManager soundManager; // Used to change Link animations Animator animator; // NEW STUFF 2 GameObject weaponGO; GameObject swordGO; public enum AttkDir { LEFT, RIGHT, UP, DOWN } AttkDir atkDir; // END OF NEW STUFF 2 // Makes sure components have been created when the // game starts void Awake(){ // Get Links Rigidbody rb = GetComponent<Rigidbody2D> (); // Setup Gameboard so I can access functions // gameBoard = FindObjectOfType(typeof(Gameboard)) as Gameboard; // Get SoundManager reference // soundManager = GameObject.Find ("SoundManager").GetComponent<SoundManager> (); // Get Animator reference animator = GetComponent<Animator>(); // NEW 2 Get sword gameobject weaponGO = GameObject.Find("Weapon"); swordGO = GameObject.Find(“Sword"); swordGO.GetComponent<Renderer>().enabled = false; } // Used to flip the animations bool facingRight = false; bool facingLeft = false; void FixedUpdate(){ // Get keyboard input float horzMove = Input.GetAxisRaw ("Horizontal"); float vertMove = Input.GetAxisRaw ("Vertical"); rb.velocity = new Vector2 (horzMove * speed, vertMove * speed); // NEW 2 Changed to w and s if (Input.GetKey ("w") || Input.GetKey ("s")) { if (Input.GetKey ("s")) { animator.Play ("WalkDown"); // NEW 2 Rotate Link's sword // weaponGO.transform.rotation = Quaternion.Euler(0, 0, 0); // Set attack direction to down and call for animation atkDir = AttkDir.DOWN; } if (Input.GetKey ("w")) { animator.Play ("WalkUp"); // NEW 2 Rotate Link's sword // weaponGO.transform.rotation = Quaternion.Euler(0, 0, 180); // Set attack direction to up and call for animation atkDir = AttkDir.UP; } } else { if (Input.GetKey ("d")) { animator.Play ("WalkRight"); /* // Flips the animation to the right if (facingLeft) { facingRight = true; facingLeft = false; animator.transform.Rotate (0, 180, 0); } else if (!facingLeft) { facingRight = true; } */ // NEW 2 Rotate Link's sword // weaponGO.transform.rotation = Quaternion.Euler(0, 0, 90); // weaponGO.transform.position = new Vector3(transform.position.x, // transform.position.y, transform.position.z); // Set attack direction to right and call for animation atkDir = AttkDir.RIGHT; } if (Input.GetKey ("a")) { // NEW 2 Updated by adding WalkLeft animator.Play ("WalkLeft"); // NEW 2 Rotate Link's sword //weaponGO.transform.rotation = Quaternion.Euler(0, 0, -90); //weaponGO.transform.position = new Vector3(transform.position.x, // transform.position.y - .55f, transform.position.z); // Set attack direction to left and call for animation atkDir = AttkDir.LEFT; /* // Flips the animation to the left if (facingRight) { facingLeft = true; facingRight = false; animator.transform.Rotate (0, 180, 0); } else if (!facingRight) { facingLeft = true; } */ } } // Switches back to the Idle position if a key is released if (Input.GetKeyUp ("s")) { animator.Play ("Idle"); // When stopped Link will move back into a valid position float centerX = (float)Math.Round(Convert.ToDouble(transform.position.x)); float centerY = (float)Math.Round(Convert.ToDouble(transform.position.y)); transform.position = new Vector2(centerX, centerY); swordGO.GetComponent<Renderer>().enabled = false; } // NEW 2 Trigger sword attack with return key if (Input.GetKey (KeyCode.Return)) { LinkAttack (); } } // NEW STUFF 2 void LinkAttack(){ switch (atkDir) { case AttkDir.DOWN: { StartCoroutine (AnimateSword (0f, 0f)); break; } case AttkDir.LEFT: { StartCoroutine (AnimateSword (-90f, -.55f)); break; } case AttkDir.RIGHT: { StartCoroutine (AnimateSword (90f, 0f)); break; } case AttkDir.UP: { StartCoroutine (AnimateSword (180f, 0f)); break; } } // END OF NEW STUFF 2 } IEnumerator AnimateSword(float rotation, float vertMove){ // Make sword appear swordGO.GetComponent<Renderer>().enabled = true; // Rotate sword into position weaponGO.transform.rotation = Quaternion.Euler(0, 0, rotation); // Move sword vertically weaponGO.transform.position = new Vector3(transform.position.x, transform.position.y + vertMove, transform.position.z); // Wait a second before hiding sword again yield return new WaitForSeconds (.2f); swordGO.GetComponent<Renderer>().enabled = false; } } |
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