unity spherecast
void CheckSpherecast(float radius, float detectableDistance, LayerMask detectableLayer) {
Ray ray = mainCamera.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
if (Physics.SphereCast(ray, radius, out hitInfo, detectableDistance, detectableLayer)) {
Debug.Log(hitInfo);
}
}draw sphere cast unity with program
void RenderVolume(Vector3 p1 , Vector3 p2 , float radius , Vector3 dir, float distance )
{
if (!shape)
{ // if shape doesn't exist yet, create it
shape = GameObject.CreatePrimitive(PrimitiveType.Cube).transform;
Destroy(shape.GetComponent<Collider>()); // no collider, please!
shape.GetComponent<Renderer>().material = mat; // assign the selected material to it
}
Vector3 scale ; // calculate desired scale
float diam = 2 * radius; // calculate capsule diameter
scale.x = diam; // width = capsule diameter
scale.y = Vector3.Distance(p2, p1) + diam; // capsule height
scale.z = distance + diam; // volume length
shape.localScale = scale; // set the rectangular volume size
// set volume position and rotation
shape.position = (p1 + p2 + dir.normalized * distance) / 2;
shape.rotation = Quaternion.LookRotation(dir, p2 - p1);
shape.GetComponent<Renderer>().enabled = true; // show it
}
void HideVolume()
{ // hide the volume
if (shape) shape.GetComponent<Renderer>().enabled = false;
}
private Transform shape ;
public float range = 10; // range of the capsule cast
private float freeDistance = 0;
void Update()
{
if (Input.Get$$anonymous$$ey("p"))
{ // while P pressed...
RaycastHit hit;
CharacterController charContr = GetComponent<CharacterController>();
var radius = charContr.radius;
// find centers of the top/bottom hemispheres
Vector3 p1 = transform.position + charContr.center;
var p2 = p1;
var h = charContr.height / 2 - radius;
p2.y += h;
p1.y -= h;
// draw CapsuleCast volume:
RenderVolume(p1, p2, radius, transform.forward, range);
// cast character controller shape range meters forward:
if (Physics.CapsuleCast(p1, p2, radius, transform.forward,out hit, range))
{
// if some obstacle inside range, save its distance
freeDistance = hit.distance;
}
else {
// otherwise shows that the way is clear up to range distance
freeDistance = range;
}
}
if (Input.Get$$anonymous$$eyUp("p"))
{
HideVolume(); // hide volume when P is released
}
}Copyright © 2021 Codeinu
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