koobas.hobune.stream
How to make obect move only if its on top of another object
I am instantiating some objects in my scene so they fall onto another compound object (object made up of several parts) I want it so the objects move negatively along the z axis, but only if its touching the compound object. I have done some research on this but all I can find is raycasting to see if the object is touching the ground, however (maybe its just me because i'm not that experienced) but I cant seem to get that to work. I use c#. thanks for your help in advance.
EDIT: This is the code I am using to instantiate my objects.
void Update() {
pennySpawn -= Time.deltaTime;
dimeSpawn -= Time.deltaTime;
nickelSpawn -= Time.deltaTime;
Quaternion rotation = rotationRot;
if (pennySpawn <= 0 && amountPenniesAllowed <= penniesAllowed && coins <= coinsAllowed)
{
Instantiate(penny, new Vector3(Random.Range (-3.0f, 3.0f), 1.5F, Random.Range (5.0f, 15.0f)), rotation);
pennySpawn = 1.0f;
pennySpawn -= Time.deltaTime;
amountPenniesAllowed = amountPenniesAllowed + 1;
coins = coins + 1;
}
if (dimeSpawn <= 0 && amountDimesAllowed <= dimesAllowed && coins <= coinsAllowed)
{
Instantiate(dime, new Vector3(Random.Range (-3.0f, 3.0f), 1.5F, Random.Range (5.0f, 15.0f)), rotation);
dimeSpawn = 1.4f;
dimeSpawn -= Time.deltaTime;
amountDimesAllowed = amountDimesAllowed + 1;
coins = coins + 1;
}
if (nickelSpawn <= 0 && amountNickelsAllowed <= nickelsAllowed && coins <= coinsAllowed)
{
Instantiate(nickel, new Vector3(Random.Range (-3.0f, 3.0f), 1.5F, Random.Range (5.0f, 15.0f)), rotation);
nickelSpawn = 1.2f;
nickelSpawn -= Time.deltaTime;
amountNickelsAllowed = amountNickelsAllowed + 1;
coins = coins + 1;
}
Can you post the code you are using? and you can also look up OnCollisionStay() and OnTriggerStay() wich are part of the rigidbody Physics
ok I edited my post to have the script I am using to instantiate my objects in it.
For the locking the movment when colliding with the object you would need to add code to the movement script
I understand that, and I will probably use something like this:
void Update () { transform.Translate (Vector3.back * Time.deltaTime, Space.World); }
to make my objects move. I just need to know how to call this transform.Translate to work while its on top of the other object.
Have you tried to check if he is on the floor by checking if its colliding with the floor? And if its collides then it can move?
Add an OnCollisionStay function to a component on the coins (http://docs.unity3d.com/ScriptReference/Collider.OnCollisionStay.html).
Inside OnCollisionStay do something like this:
public Collider GroundCollider;
public float Speed = 1.0f;
void OnCollisionStay(Collision collisionInfo)
{
if ( collisionInfo.collider == GroundCollider )
{
transform.position += Vector3.forward * Time.deltaTime * Speed;
}
}
Then in the editor set the GroundCollider property to whatever collider they're going to land on.
