private void OnTriggerEnter2D(Collider2D collision)
{
// (meme) solution to mouse hitting trigger twice while turning
if (m_state == MouseState.Turn)
{
return;
}
// not sure if we want this:
// Increment this direction's box to dissuade backtracking the maze
if (!trigger_map.ContainsKey(collision.name))
{
trigger_map.Add(collision.name, 1);
}
else
{
trigger_map[collision.name]++;
}
DialogueTrigger dt = collision.gameObject.GetComponent <DialogueTrigger>();
if (dt != null)
{
if (!dt.activated)
{
dt.Activate();
m_state = MouseState.InDialogue;
rb.velocity = Vector2.zero;
}
return;
}
ChangeLevelTrigger changer = collision.gameObject.GetComponent <ChangeLevelTrigger>();
if (changer != null)
{
victory_sound.PlayThis();
changer.loadNextLevel();
m_state = MouseState.Wait;
rb.velocity = Vector2.zero;
return;
}
// make the mouse choose a new path semi-randomly
// raycast forward, left, and right to find the 3 directions he can go
List <RaycastHit2D> collider_hits = new List <RaycastHit2D>();
// check in front of mouse, and to left and right of mouse
Vector2[] raycast_directions = { transform.up, -1.0f * transform.right, transform.right };
RaycastHit2D hit;
float trigger_size = collision.GetComponent <BoxCollider2D>().size.y;
float rand_total = 0f;
foreach (Vector2 raycast_dir in raycast_directions)
{
// raycast from side of trigger box outwards
hit = Physics2D.Raycast(collision.transform.position + (Vector3)raycast_dir * trigger_size, raycast_dir);
if (hit.collider.tag == "MazeTrigger")
{
collider_hits.Add(hit);
if (!trigger_map.ContainsKey(hit.collider.name))
{
rand_total += 1.0f;
trigger_map.Add(hit.collider.name, 1);
}
else
{
rand_total += 1.0f / trigger_map[hit.collider.name];
}
}
}
if (collider_hits.Count == 0)
{
// have to turn around
rb.velocity = new Vector2(0, 0);
transform.Rotate(Vector3.forward * 180);
direction *= -1.0f;
return;
}
Random rnd = new Random();
float place = Random.Range(0.0f, rand_total);
// FOR DEBUGGING PLEASE REMEMBER TO REMOVE
//place = 0;
float cur_place = 0.0f;
RaycastHit2D next_target = collider_hits[0];
for (int i = 0; i < collider_hits.Count; ++i)
{
cur_place += 1.0f / trigger_map[collider_hits[i].collider.name];
if (place < cur_place)
{
next_target = collider_hits[i];
break;
}
}
Vector2 next_direction = (next_target.transform.position - collision.transform.position).normalized;
if (direction != next_direction)
{
// we are going to need to turn
// update the direction that we are going in
direction = (next_target.transform.position - collision.transform.position);
direction.Normalize();
if (Vector2.Dot(direction, Vector2.up) == 0)
{
snap_float = next_target.transform.position.y;
}
else
{
snap_float = next_target.transform.position.x;
}
Invoke("swap_to_turn", turn_delay);
}
}