koobas.hobune.stream
Taking damage from an enemy on collision
Hey guys,
What I have done so far is created a first person shooter where you shoot enemies that walk around and follow you. I've got everything working fine. I can shoot the enemies three times each, and they die etc.... etc...
What I am stuck on, is getting the player to take damage when enemies collide or come into contact with the player. I tried the following script:
var health = 4;
function OnCollisionEnter(hit: Collision){
if(hit.gameObject.tag == "enemy"){
health = health - 1;
}
}
function Update(){
if(health == 0){
Destroy(gameObject);
}
}
This is the script to go onto the player and as you can notice, I ran into a problem, because when the enemies collide with the player, it is constantly taking down the health, and because the Update function is constantly checking how ever many times it does per frame, it basically kills the player straight away....
What I was thinking was, I need say a cool down buffer, where it takes a couple of seconds until the player can take damage again, even if an enemy is colliding with it!!!
Thanks in advance!
-Grady
This is a very basic solution, but maybe is what you want. The only change is the introduction of a WaitForSeconds() that stops the health decreasing for 2 secs. I can't test it right now, so it's just a suggestion. Let me know...
var health = 4;
var damage = 1;
var wait_time = 2;
var lock = 0;
function OnCollisionEnter(hit: Collision){
if(hit.gameObject.tag == "enemy" && lock == 0){
DecreasingHealth();
}
}
function DecreasingHealth(){
lock=1;
health=health-damage;
yield WaitForSeconds(wait_time);
lock=0;
}
function Update(){
if(health == 0){
Destroy(gameObject);
}
}
Ok thank you, I'm not at unity right now, but I will test it after! Thanks for your response!
for some reason, the collision is not be detected, i have a character controller on my first person player and i attached a non kinematic rigidbody with use gravity disabled.
I don't know why this isn't working.....
Is isTrigger deactivated under the Collider voice? 'Cause all seems working to me...
yeah, is trigger is deactivated on the enemy, but i can't check the players one because it is a first person controller with a character controller....
$$anonymous$$aybe it won't work because character controllers don't use OnCollisionEnter? I think they use OnControllerColliderHit.
I would try the following approach:
Create a flag (Boolean) to toggle recognition of the collision, "hasCollided".
Inside OnCollisionEnter, first check that hasCollided is false. If it is, flag it as true and calculate the damage. This should prevent subsequent calculations of the same collision.
Finally, use OnCollisionExit to reset hasCollided to false. This should ensure that the objects have to separate before a subsequent collision is recognised.
I hope that solves your problem. (I'm going to be facing the same thing shortly...)
