Change Path/Waypoint

Reismehl

Hi!
I'm working on a game where incoming AI cars need to change direction at an intersection. I saw a Tower Defense video on youtube where the actors changed direction when they overlapped/collided with an invisible waypoint. Anyone know how to do this?
-Erik

MotherHoose

for one waypoint just make a small 4x4 actor named dirChange …
place it in the middle of the intersection point on your image

and in your prototype for the cars:
Rule: when
Event: overlaps or collides with actor dirChange
--do changes for car's direction that you want.

when it works well … dirChanger Attributes > Graphics > uncheck the Visible boolean

@};- MH

Reismehl

Ok, thats what i thought, but its not working properly. The traffic is generated by a spawner, so i've told the Car Actor to move upwards when born.

Now, after adding the rule you suggested, it only bumps into the dirChange actor, slides on its edge towards the new direction i've set, then continues in the original direction. Obviously, it understands it as "Change direction only while colliding with dirChange, but not permanently."

Any suggestions?
Thank you MH for your fast reply.

Reismehl

Ok, I figured it out!

For the car:
(when born/spawned) Change attribute: self.motion.linear.y to 100

Rule: when overlaps or collides with waypoint actor
Change attribute: self.motion.lenar.x to 100
and Change attribute: self.motion.lineary to 0

-Erik

MotherHoose

Aha! you got it! good work! @Ms45333

often good to:
Save As… your game to a new sandBox project and play around there until you find what works best, for you.
then add those behaviors to your original game.

@};- MH