//Vector2 debugHitLocation = new Vector2();
public override void TickAI(float delta)
{
Player player = Player;
if (player == null)
{
return;
}
Movable locomotion = Locomotion;
bool move = false;
switch (state)
{
case ChaseAIState.Idle:
{
//Wait a while until deciding what to do next.
TickDownTime(delta);
if (timeAccumulator <= 0)
{
if (locomotion.CanSeeTarget(player, Controller.searchRadius))
{
target = player;
state = ChaseAIState.Chasing;
timeAccumulator = Controller.chaseTime;
}
else
{
//Random chance of either continue idling or start wandering.
if (GenRandom.Bool())
{
//Wander.
state = ChaseAIState.Wandering;
//Pick a random spot to wander to.
int randomDirection = GenRandom.Integer(GenDirection.EightWay.Length);
Vector2 randomDirectionVector = GenDirection.EightWay[randomDirection];
Vector2 randomLocationVector = GenMath.OffsetInDirectionVector(locomotion.GlobalPosition, randomDirectionVector, Controller.wanderDistance);
//Vector2 randomLocationVector = locomotion.Position + (randomDirectionVector.Normalized() * Controller.wanderDistance);
bool rayHit = false;
Vector2 rayHitVector = GenPhysics.SimpleRayCast(locomotion, locomotion.GlobalPosition, randomLocationVector, out rayHit);
//debugHitLocation = rayHitVector;
if (!rayHit)
{
target = randomLocationVector;
}
else
{
target = rayHitVector;
}
}
else
{
timeAccumulator = Controller.idleTime;
}
}
}
}
break;
case ChaseAIState.Chasing:
{
//Chase!
ChasePlayer(delta);
move = true;
if (locomotion.CanSeeTarget(player, Controller.searchRadius))
{
//Reset chase time
timeAccumulator = Controller.chaseTime;
}
else
{
//Go back to idling after time passed.
TickDownTime(delta);
if (timeAccumulator <= 0)
{
SwitchToIdleState();
}
}
}
break;
case ChaseAIState.Wandering:
{
if (locomotion.hitObstacle)
{
SwitchToIdleState();
}
else
{
//Stop wandering if nearby the wandering location.
if (locomotion.GlobalPosition.DistanceTo(target.Location) <= 16f)
{
SwitchToIdleState();
}
else
{
MoveToward(target.Location, Controller.movementSpeed * 0.5f);
move = true;
}
}
}
break;
}
if (!move)
{
StopLocomotion();
}
}