public override AIAction GFixedUpdate(UnitCommander unitCmd, Vector2 goalPos)
{
//Init
Vector2 moveVec = Vector2.zero;
Vector2 pos = unitCmd.transform.position;
unitCmd.GetComponent<Rigidbody2D>().gravityScale = 1;
state = AIState.MOVING;
//Check for enemies
float directionX = unitCmd.turnedRight ? 1f : -1f;
Vector2 inFrontUpperLeft = new Vector2(pos.x + directionX * 0.5f, pos.y + 0.5f);
Vector2 inFrontLowerRight = new Vector2(pos.x + directionX * 0.9f, pos.y - 0.5f);
Collider2D[] inFrontColliders = Physics2D.OverlapAreaAll(inFrontUpperLeft, inFrontLowerRight);
foreach (Collider2D coll in inFrontColliders) {
if (coll.tag.Equals("Monster")){
state = AIState.ATTACKING;
}
}
switch (state) {
case AIState.MOVING:
moveVec = Movement(unitCmd, goalPos);
break;
case AIState.ATTACKING:
moveVec = AttackMove(unitCmd, inFrontColliders);
break;
default:
break;
}
Debug.DrawLine(inFrontUpperLeft, inFrontLowerRight, Color.green);
return new AIAction(moveVec, state == AIState.ATTACKING);
}
protected Vector2 Movement(UnitCommander unitCmd, Vector2 goalPos)
{
Vector2 moveVec = Vector2.zero;
Vector2 pos = unitCmd.transform.position;
bool isOnStairs = false;
Vector2 upperLeft = new Vector2(pos.x - 0.1f, pos.y + 0.5f);
Vector2 lowerRight = new Vector2(pos.x + 0.1f, pos.y - 0.5f);
Collider2D[] colliders = Physics2D.OverlapAreaAll(upperLeft, lowerRight);
float totXForce = 0;
foreach (Collider2D coll in colliders) {
//Is on stairs?
if (coll.tag.Equals("Stairs"))
{
isOnStairs = true;
unitCmd.GetComponent<Rigidbody2D>().gravityScale = 0;
unitCmd.GetComponent<Rigidbody2D>().velocity = Vector2.zero;
break;
}//Move away from other heroes
// else if (coll.tag.Equals("Hero"))
// {
// float xDiff = coll.transform.position.x - pos.x;
// float xForce = xDiff == 0 ? 0 : 0.1f/xDiff;
// totXForce -= xForce;
// }
}
//Move in x or y direction / Can move in y direction?
if (isOnStairs && CanContinueOnStairs(pos, goalPos)){ // && transform.position.y - 0.5f < goalPos.y || transform.position.y - 0.6f > goalPos.y){
moveVec.y = Mathf.MoveTowards(pos.y, goalPos.y, 0.1f) - pos.y;
}else{
moveVec.x = Mathf.MoveTowards(pos.x, goalPos.x, 0.1f) - pos.x;
}
//Apply hero-distancer force
// if (totXForce > 0.1) totXForce = 0.1f;
// if (totXForce < -0.1) totXForce = -0.1f;
// if ((moveVec.x > 0 && totXForce < 0) || (moveVec.x < 0 && totXForce > 0)) moveVec.x += totXForce;
return moveVec;
}