koobas.hobune.stream
Checking trigger collision on other objects?
Im currently working on a tower defence game , and in that game you are only allowd to build inside a area. So i need to check if the grid object is inside a trigger.
This is my current script.
using UnityEngine; using System.Collections;
public class Player : MonoBehaviour {
public float gridSpacing = 5.0f;
public Transform grid;
public GameObject tower;
// Update is called once per frame
void Update () {
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
bool rayhit;
rayhit = Physics.Raycast(ray.origin, ray.direction, out hit);
Vector3 position = hit.point;
position.x = Mathf.Round(position.x / gridSpacing) * gridSpacing;
position.y = Mathf.Round(position.y / gridSpacing) * gridSpacing;
position.z = Mathf.Round(position.z / gridSpacing) * gridSpacing;
grid.transform.position = position;
if (Input.GetButtonDown("Fire1")) {
Instantiate(tower, position, Quaternion.identity);
}
}
}
So i need to
if (Input.GetButtonDown("Fire1")) {
to also check if inside a trigger and the triggers tag.
try telling it to print something like "Trigger Active" when initiate the trigger. That way you will know the trigger is active
Not the safest when using multiply triggers. I wanna have something that checks when u click to avoid bugs.
I don't have any code but perhaps a method that could be helpful. You could store an array of available positions inside the grid, when a position is filled it cannot be built at. Just as an example, here position 1:3 and 2:2 is not available for building:
[ ][ ][x]
[ ][x][ ]
[ ][ ][ ]
