public override void Update(Npc npc)
{
closestBall = npc.FindClosestBall(npc.transform.position);
if (closestBall != null)
{
npc.GetComponent <NpcController>().GoToBall(closestBall);
}
//OverlapCapsule calculations based on this: https://roundwide.com/physics-overlap-capsule/
var center = npc.transform.TransformPoint(npcCollider.center);
var size = new Vector3(npcCollider.radius, npcCollider.height, npcCollider.radius); //the code given in the above link for this line is WRONG! Don't convert to world position!
var radius = size.x; //the CharacterController radius + skinWidth MUST be smaller than the CapsuleCollider radius or else it won't detect collisions!
var height = size.y;
var bottom = new Vector3(center.x, center.y - height / 2 + radius, center.z);
var top = new Vector3(center.x, center.y + height / 2 - radius, center.z);
//the following code works similarly to BlastballStateThrown - refer to that for explanation
bool checkCapsule = Physics.CheckCapsule(top, bottom, radius, ballMask);
Physics.OverlapCapsuleNonAlloc(top, bottom, radius, overlapBall, ballMask);
if (!oldCheckCapsule && checkCapsule)
{
npc.npcBall = overlapBall[0].gameObject;
}
oldCheckCapsule = checkCapsule;
//change state
if (npc.npcBall != null)
{
npc.ChangeState(npc.stateHasBall);
}
}
public override void Enter(Npc npc)
{
npcCollider = npc.GetComponent <CapsuleCollider>();
ballMask = LayerMask.GetMask("Ball"); //all balls must be on the Ball layer
closestBall = npc.FindClosestBall(npc.transform.position);
if (closestBall != null)
{
npc.GetComponent <NpcController>().GoToBall(closestBall);
}
}