// Update is called once per frame
public void UpdateState()
{
// Return to patrol state if target is out of range
if (!stateMachine.IsTargetInRange())
{
ToPatrolState();
}
// Get the direction from self to target
Vector3 targetDir = stateMachine.GetTargetDirection();
// Calculate movement step speed
float step = stateMachine.maxChaseSpeed * Time.deltaTime;
// Calculate new look rotation
Vector3 newDir = Vector3.RotateTowards(stateMachine.rotationBody.forward, targetDir, step, 0.0f);
stateMachine.rotationBody.rotation = Quaternion.LookRotation(newDir);
// Reset X and Z axis
Vector3 tempEulerAngles = stateMachine.rotationBody.eulerAngles;
tempEulerAngles.x = 0.0f;
tempEulerAngles.z = 0.0f;
stateMachine.rotationBody.eulerAngles = tempEulerAngles;
// Attack after timer
if (chaseTime >= stateMachine.chaseDuration)
{
ToAttackState();
}
// Increment timer
chaseTime += Time.deltaTime;
}
void CheckTargetIsInFOV()
{
if (!stateMachine.IsTargetInRange())
{
return;
}
Vector3 targetDir = stateMachine.GetTargetDirection();
float angleToTarget = Vector3.Angle(targetDir, stateMachine.rotationBody.forward);
// Check if target is in FOV
if (angleToTarget <= stateMachine.turrentLookFOV * 0.5f && angleToTarget >= -stateMachine.turrentLookFOV * 0.5f)
{
ToAlertState();
}
}