I creating a 2d platform game. I would like to bounce the player away after hit by the enemy, so the user get another feedback beside the sound effect.
How can I achieve my wish?
Use the following code for my enemy attack:
public float timeBetweenAttacks = 0.5f; // The time in seconds between each attack.
public int attackDamage = 25; // The amount of health taken away per attack.
Animator anim; // Reference to the animator component.
GameObject player; // Reference to the player GameObject.
PlayerHealth playerHealth; // Reference to the player's health.
bool playerInRange; // Whether player is within the trigger collider and can be attacked.
float timer; // Timer for counting up to the next attack.
void Awake () {
// Setting up the references.
player = GameObject.FindGameObjectWithTag ("Player");
playerHealth = player.GetComponent <PlayerHealth> ();
//enemyHealth = GetComponent<EnemyHealth>();
anim = GetComponent <Animator> ();
}
void OnCollisionEnter2D (Collision2D other) {
// If the entering collider is the player...
if(other.gameObject == player) {
// ... the player is in range.
playerInRange = true;
}
}
void OnCollisionExit2D(Collision2D other) {
// If the exiting collider is the player...
if(other.gameObject == player) {
// ... the player is no longer in range.
playerInRange = false;
}
}
void Update () {
// Add the time since Update was last called to the timer.
timer += Time.deltaTime;
// If the timer exceeds the time between attacks, the player is in range and this enemy is alive...
if(timer >= timeBetweenAttacks && playerInRange) {
// ... attack.
Attack ();
}
// If the player has zero or less health...
if(playerHealth.currentHealth <= 0) {
// ... tell the animator the player is dead.
anim.SetTrigger ("PlayerDead");
}
}
void Attack () {
// Reset the timer.
timer = 0f;
// If the player has health to lose...
if(playerHealth.currentHealth > 0) {
// ... damage the player.
playerHealth.TakeDamage (attackDamage);
}
}
The enemies do have a box collider 2D, and the script you can see above.
Player has also a box and circle collider 2d, a rigid body2D and a player health script:
public int startingHealth = 100; // The amount of health the player starts the game with.
public int currentHealth; // The current health the player has.
public Slider healthSlider; // Reference to the UI's health bar.
public Image damageImage; // Reference to an image to flash on the screen on being hurt.
public AudioClip hurtClip;
private AudioSource source;
public float flashSpeed = 5f; // The speed the damageImage will fade at.
public Color flashColour = new Color(1f, 0f, 0f, 0.1f); // The colour the damageImage is set to, to flash.
public float internalStrength = 1000;
public int externalStrength = 1000;
Animator anim; // Reference to the Animator component.
PlayerMovement playerMovement; // Reference to the player's movement.
bool isDead; // Whether the player is dead.
bool damaged; // True when the player gets damaged.
void Awake () {
// Setting up the references.
anim = GetComponent <Animator> ();
source = GetComponent <AudioSource> ();
playerMovement = GetComponent <PlayerMovement> ();
// Set the initial health of the player.
currentHealth = startingHealth;
}
void Update () {
//internalStrength -= Time.deltaTime;
//externalStrength = Mathf.RoundToInt(internalStrength) + Random.Range(-100, 100);
// If the player has just been damaged...
if(damaged) {
// ... set the colour of the damageImage to the flash colour.
damageImage.color = flashColour;
}
// Otherwise...
else {
// ... transition the colour back to clear.
damageImage.color = Color.Lerp (damageImage.color, Color.clear, flashSpeed * Time.deltaTime);
}
// Reset the damaged flag.
damaged = false;
}
public void TakeDamage (int amount) {
// Set the damaged flag so the screen will flash.
damaged = true;
// Reduce the current health by the damage amount.
currentHealth -= amount;
// Set the health bar's value to the current health.
healthSlider.value = currentHealth;
// Play the hurt sound effect.
source.PlayOneShot (hurtClip);
// If the player has lost all it's health and the death flag hasn't been set yet...
if(currentHealth <= 0 && !isDead) {
// ... it should die.
Death ();
}
}
void Death () {
// Set the death flag so this function won't be called again.
isDead = true;
// Tell the animator that the player is dead.
anim.SetTrigger ("Die");
// Set the audiosource to play the death clip and play it (this will stop the hurt sound from playing).
// Turn off the movement and shooting scripts.
playerMovement.enabled = false;
}
If there is something unclear or whatever, ask me! Look out for some advice.
