Object is within Threshold of Object

08:58 PM

I'm attempting to make a simple game with Alice 2.0. The game is the player controlling a tank's turret
(Left arrow key rotated it left, right arrow key rotates it right. at this point I dont suggest uing up and down)to shoot at
targets out in front of the tank.

Right now when the tennis ball that is shot out reaches the target i placed, nothing happens. I used "If/Then"
with the "Object is within Threshold of Object" function and the If method is not performed when the tennis
ball enters the threshold specified.

So now here it is.
How do I...
Make this method so that when the moving tennis ball enters defined threshold of "target". The action
specified in "If" is performed?

09-04-2009, 11:19 PM

Gah. I just can't figure out what's wrong with this. Does it not recognize it as threshold when arrow keys are controlling the objects movement either?

dubastot · 09-10-2009, 02:48 AM

THis is a little latte to answer, but the problem with your code is you need an infinte loop. You can look at the bottom of the alice window and right beside the if/else statement, you will see the loop option. Just drag it to the command board AND SELECT INFINITE LOOPS. Sorry for the caps. It should look something like this.

Loop infinite times
if/else
tennis ball is within 2 metres of random guy2
random guy2 roll left .2 revolutions duration=2 seconds

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	#1 (permalink)
Kosire Guest Status: Posts: n/a	Object is within Threshold of Object - 09-03-2009, 08:52 PM I'm attempting to make a simple game with Alice 2.0. The game is the player controlling a tank's turret (Left arrow key rotated it left, right arrow key rotates it right. at this point I dont suggest uing up and down)to shoot at targets out in front of the tank. Right now when the tennis ball that is shot out reaches the target i placed, nothing happens. I used "If/Then" with the "Object is within Threshold of Object" function and the If method is not performed when the tennis ball enters the threshold specified. So now here it is. How do I... Make this method so that when the moving tennis ball enters defined threshold of "target". The action specified in "If" is performed? Last edited by Kosire; 09-03-2009 at 08:58 PM.

	#2 (permalink)
Kosire Guest Status: Posts: n/a	09-04-2009, 11:19 PM Gah. I just can't figure out what's wrong with this. Does it not recognize it as threshold when arrow keys are controlling the objects movement either?

	#3 (permalink)
dubastot Senior Member Status: Offline Posts: 661 Join Date: Apr 2009 Location: Two Steps From Hell	09-10-2009, 02:48 AM THis is a little latte to answer, but the problem with your code is you need an infinte loop. You can look at the bottom of the alice window and right beside the if/else statement, you will see the loop option. Just drag it to the command board AND SELECT INFINITE LOOPS. Sorry for the caps. It should look something like this. Loop infinite times if/else tennis ball is within 2 metres of random guy2 random guy2 roll left .2 revolutions duration=2 seconds