Collision Detection with variables

FatRefrigerator · **Collision Detection with variables -** 09-28-2011, 11:33 AM

How does one make a collision detection system that doesn't involve simply making an event the involves 2 objects?

I want to be able to define a set list of objects that will be the only ones that are detecting.

Ex: a car with a bunch of buildings around it, making it react when it collides with the buildings, but without making a separate method for each building.

GameKid · 09-29-2011, 11:06 PM

If [Car] (Collision with building one here)
If: [Car] Move back [0.1] meters Duration=0
Else:
If [Car] (Collision with building two here)
If: [Car] Move back [0.1] meters Duration=0
Else:
If [Car] (Collision with building three here)
If: [Car] Move back [0.1] meters Duration=0
^Use that sort of thing.

FatRefrigerator · 09-30-2011, 11:32 AM

What you said is what I can already do...

Quote:

Originally Posted by FatRefrigerator

without making a separate method for each building.

Is there any other way?

Mr Kidnapper · 09-30-2011, 04:27 PM

Make a list or array variable with a series of objects that are to be your collision proxy.
Then, make an if statement containing a do for all together that detects if your object is near the collision proxy.

InsertName · 09-30-2011, 06:52 PM

Click here to veiw a Thread on the same thing

GameKid · 10-01-2011, 01:04 AM

Quote:

Originally Posted by FatRefrigerator

What you said is what I can already do...

Is there any other way?

That's entirely different.
You said methods, but I apologize for misunderstanding.

FatRefrigerator · 10-03-2011, 11:28 AM

Quote:

Originally Posted by GameKid

You said methods, but I apologize for misunderstanding.

Apology accepted, I realized after that I had indeed asked for methods, which is what you gave me, but thank you all for your help. Perhaps now I can inch closer to finishing this project...

FatRefrigerator · **Argh... -** 10-04-2011, 12:08 PM

Tried to implement what you suggested...and it didn't work. Not sure if I didn't do what you had in mind or if Alice just doesn't like me, but I'm attaching the world I put it in. You might wanna take a look at the other methods and events I have and see if they might be affecting it.

thanks,
Fatrefrigerator

Dameria · 10-05-2011, 07:56 PM

I made a maze world a long time ago to demonstrate collisions with a bunch of walls that are all in a list. It just checks to see if the person is touching anything in the list and it pushes it back if it is. The problem is though that it only works if you put up walls, rectangles. You would have to tweak it to make it work with other objects, but it works fine if you just put a bunch of walls around the objects where you don't want it to pass through.

Thread is here

gilhritrobin · 10-09-2011, 02:08 AM

This message has been approved by GameKid

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	#1 (permalink)
FatRefrigerator Member Status: Offline Posts: 28 Join Date: Aug 2010 Location: 5000 feet up	Collision Detection with variables - 09-28-2011, 11:33 AM How does one make a collision detection system that doesn't involve simply making an event the involves 2 objects? I want to be able to define a set list of objects that will be the only ones that are detecting. Ex: a car with a bunch of buildings around it, making it react when it collides with the buildings, but without making a separate method for each building.

	#2 (permalink)
GameKid Senior Member Status: Offline Posts: 467 Join Date: May 2011 Location: My magnificent castle	09-29-2011, 11:06 PM If [Car] (Collision with building one here) If: [Car] Move back [0.1] meters Duration=0 Else: If [Car] (Collision with building two here) If: [Car] Move back [0.1] meters Duration=0 Else: If [Car] (Collision with building three here) If: [Car] Move back [0.1] meters Duration=0 ^Use that sort of thing. [COLOR=e4eaf2]Your text here[/COLOR] Come on, you know you want to try it.

	#4 (permalink)
Mr Kidnapper Senior Member Status: Offline Posts: 442 Join Date: Feb 2011	09-30-2011, 04:27 PM Make a list or array variable with a series of objects that are to be your collision proxy. Then, make an if statement containing a do for all together that detects if your object is near the collision proxy.

	#5 (permalink)
InsertName Senior Member Status: Offline Posts: 341 Join Date: Jun 2011 Location: In a house	09-30-2011, 06:52 PM Click here to veiw a Thread on the same thing __№_₤⅞__ Handguns: http://www.alice.org/community/showthread.php?p=45349 MINECRAFT IN ALICE: http://alice.org/community/showthread.php?p=48208 My Stupid Animations: http://alice.org/community/album.php?albumid=119

	#9 (permalink)
Dameria Senior Member Status: Offline Posts: 976 Join Date: Sep 2009 Location: United States	10-05-2011, 07:56 PM I made a maze world a long time ago to demonstrate collisions with a bunch of walls that are all in a list. It just checks to see if the person is touching anything in the list and it pushes it back if it is. The problem is though that it only works if you put up walls, rectangles. You would have to tweak it to make it work with other objects, but it works fine if you just put a bunch of walls around the objects where you don't want it to pass through. Thread is here Check out my best projects so far and please comment: Tic-Tac-Toe 2.0 ................... http://www.alice.org/community/showthread.php?t=3548 Alice Paint ........................... http://www.alice.org/community/showthread.php?p=23408 Real-Time Clock .................. http://www.alice.org/community/showthread.php?p=12725 Maze Game ......................... http://www.alice.org/community/showthread.php?t=4301

	#10 (permalink)
gilhritrobin Junior Member Status: Offline Posts: 5 Join Date: Oct 2011	10-09-2011, 02:08 AM This message has been approved by GameKid