I cant make it so that the water creates a splash when hit by an object. i’m looking to instantiate a prefab when there is a collision var power. does anyone have suggestions? or scripts? :roll:
thanks… but i don’t want to get all deep. is there a simpler (less expensive :roll: ) way?
My technique doesn’t require Pro, so do something similar to that.
–Eric
Here is the script im trying:
/// Spawns an object (often a particle system).
// Anything declared with var outside a function is visible and can be changed in the inspector
var splash : GameObject;
function OnCollisionEnter () {
// Instantiate the explosion object if we assigned one in the inspector!
if (explosion != null) {
instantiatedExplosion = Instantiate (explosion, transform.position, transform.rotation
}
it doesn’t work because it won’t register the “}”. Do you know what’s wrong? :roll:
I think it either needs to be explosion or splash-one refrences the other, so use either not both?
var explosion : GameObject;
function OnCollisionEnter () {
// Instantiate the explosion object if we assigned one in the inspector!
if (explosion != null) {
instantiatedExplosion = Instantiate (explosion, transform.position, transform.rotation
}
You can
Substitute the word splash for explosion, but if you do do it throughout the script…
Do you know what I mean? I altered it slightly try it and see…(untested)
AC
var splash : GameObject;
function OnCollisionEnter () {
// Instantiate the explosion object if we assigned one in the inspector!
if (splash != null) {
Instantiate (splash, transform.position, transform.rotation
}
}
Edit>>>>>>>>> I missed a bracket-bottom code should work now 
OH! here is someone’s breakVase script i have modified (it doesn’t have the collide with Tag, or work yet):
var brokenVase : Transform;
var radius = 2.0; // The radius of the explosion that makes the vase shatter instead of just falling apart
var power = 10.0; // The power of the explosion (later on this will be multiplied by the velocity,
// so the vase shatters more if it falls farther)
var fragility = 12; // This is for the relative velocity when the vase hits...
// bigger numbers for fragility make the vase harder to break
private var numberOfCollisions = 1; // A count for the number of objects a vase hits at once...
// we only want 1 or else you might get multiple shattered vases at once
// We want relative velocity info; otherwise this could be written as "function OnCollisionEnter(collision) {"
// and it would be a bit faster
function OnCollisionEnter(collision : Collision) {
// If the vase isn't going fast enough to break or a collision has already been processed, then don't do anything
if (collision.relativeVelocity.magnitude < fragility || numberOfCollisions != 1) {return;}
else
// Get the velocity from the vase and apply it to the pieces of the broken vase
// I figure the velocity would be reduced some by the impact if the vase was really shattering and not faked,
// so multiply by .6...looks more or less right anyway, leaving it at 1 doesn't really
var vaseVelocity = rigidbody.velocity;
for (var child in clonedVase) {
child.rigidbody.velocity = vaseVelocity*.6;
}
// Do the explosion force thing on nearby objects--the vase shards--in an attempt to simulate a properly breaking vase
var explosionPos = transform.position;
var colliders : Collider[] = Physics.OverlapSphere (explosionPos, radius);
for (var hit in colliders) {
if (!hit)
continue;
if (hit.rigidbody) {
hit.rigidbody.AddExplosionForce(power*collision.relativeVelocity.magnitude, explosionPos, radius, 2.0);
}
}
}
Here is the code that you were using. it has some problems.
1: you don’t need to assign the instantiate to a var if you don’t do anything with it aftarwards.
2: You are missing a ); on the instantiate line
3: You are missing a } on the bottom
4: The instantiate won’t create an object at the collison point. It will place it at the center of the water every time
/// Spawns an object (often a particle system).
// Anything declared with var outside a function is visible and can be changed in the inspector
var splash : GameObject;
function OnCollisionEnter () {
// Instantiate the explosion object if we assigned one in the inspector!
if (explosion != null) {
instantiatedExplosion = Instantiate (explosion, transform.position, transform.rotation
}
Here is code that fixes all the problems and should work.
Note: If your water collider is a trigger you need to use OnTriggerEnter instead, but you can’t just switch it, it needs to be set up differently with OnTriggerEnter.
// the splash prefab
var splash : GameObject;
// called whenever an object hits us
function OnCollisionEnter (collision : Collision) {
// Instantiate the splash object if we assigned one in the inspector!
if (splash != null) {
// this part gets the correct point for the explosion out of all the explosion contacts
var hitPoint : Vector3;
for(contact in collision.contacts)
{
hitPoint += contact.point;
}
hitPoint /= collision.contacts.length;
// do the instantiate. Make sure to clean up these splashes once they are done, with
//TimedObjectDestroy or something
Instantiate (splash, hitPoint, transform.rotation);
}
}
Yeah, it’s a trigger. So do I… what DO I do? :roll:
For now, you can make it not a trigger and give it a physics material with a spring. It is possible to achieve decent water this way I think. Using a trigger might be harder.
I’m Using your water script.
What is falling into the water in this case? if it is small objects, this might work ok.
// the splash prefab
var splash : GameObject;
// called whenever an object hits us
function OnTriggerEnter (other : Collider) {
// Instantiate the splash object if we assigned one in the inspector!
if (splash != null) {
// do the instantiate. Make sure to clean up these splashes once they are done, with
//TimedObjectDestroy or something
Instantiate (splash, other.transform.position, transform.rotation);
}
}