Actor walks on line path

gambet

Hello,

Is it possible to move an actor on predefined line (see the image)?

[URL=http://imageshack.us/photo/my-images/7/bozeforum.png/][IMG]http://img7.imageshack.us/img7/2568/bozeforum.th.png[/IMG][/URL]

http://imageshack.us/photo/my-images/7/bozeforum.png/

I want when the actor spawns to random choose between the three lines an then to walk from the beginning of the line to the end and then destroys.
Any idea how to make this.

DrGlickert

You'll have to use lots of rules, lots of exact numbers (in my opinion).

Start with a self.attribute: self.path (integer type)
Start the actor with a Change Attribute self.path to Random(1,3)

RULE;
Move to: X:100, Y:100

RULE:
When X=100 & Y=100
Move to X=300, Y:100

RULE:
When X=300 & Y=100
Move to X:100, Y:100

Wrap that in a bigger rule that when self.path = 1...

Do that for self.path = 2, and self.path = 3

DrGlickert

Oh, if they don't collide with anything, then I'd use interpolate instead of Move To.

DrGlickert

tshirtbooth said:
Rather then Move to i would use interpolate. Its much more reliable.

cheers

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Very true, but what if they have collide rules on them? Interpolate wouldn't work then because interpolate can't be interupted...

scitunes

Use the line drawing demo by ORBZ and then add the waypoint logic (also by ORBZ) to each line segment. Or just have a line pen and a waypoint pen but make the waypoint pen invisible and make the waypoints inviisble. Just don't use constrain's in the waypoint (use change attributes instead).

DrGlickert

tshirtbooth said:
yes but if there are things to collide with then your way will also not work as if you tell the player to move to X:100, Y:100 and there is a wall in the way then it will never get there so the second rule would not take effect

cheers

I meant collides in the sense of bullets flying or tap-to-destroy type collides. Not walls. Should have been more specific ;-)

scitunes

I used the method described above for this game:

http://itunes.apple.com/us/app/fright-control-lite/id422673852?mt=8 (free version)

gambet

DrGlickert said:
You'll have to use lots of rules, lots of exact numbers (in my opinion).

Start with a self.attribute: self.path (integer type)
Start the actor with a Change Attribute self.path to Random(1,3)

RULE;
Move to: X:100, Y:100

RULE:
When X=100 & Y=100
Move to X=300, Y:100

RULE:
When X=300 & Y=100
Move to X:100, Y:100

Wrap that in a bigger rule that when self.path = 1...

Do that for self.path = 2, and self.path = 3

I've already did this with 9 control points, with to many rules but it works.
The problem is that I need to spawn like 20 or more actors and this slows down my game (that's way i need another solution, will recycle actor instead of spawn help?).
I will look at this fright control game and orbz demo and post again.

PS. When I make move to, and then in rule if X=100 & Y=100, this doesn't work so I used the rule self.moving=false. Why the actor does not move to the move to coordinates

gambet

I don't mean that actor does not move at all, but the actor moves close to the coordinates, but not exactly on them

gambet

I have seen the orbz demo for waypoints, and now i remembered that I've used this for my ant actor, but this slows my game
If I upload my solution will someone try to optimize the actor?