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Spring with self adjusting length

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screenshot of the scene

Author: KarateBrot

Group: Default

Filesize: 300 kB

Date added: 2009-07-29

Rating: 5.6

Downloads: 867

Views: 1082

Comments: 0

Ratings: 2

Times favored: 0

Made with: Phun

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It's a spring that adjusts its length referring to the distance between the two orange boxes. It's a test for the targeting system of my FGM-148 Javelin v1.0. I want to use scripts to steer the rocket into it's target in top-attack mode and I need the distance between target, rocket, and launcher. I don't know if this phunlet could be useful. If you want to use it you're free to do so.

Variables:
scene.my.x1
scene.my.y1
scene.my.x2
s-
cene.my.y2
scene.my.xRel
scene.my.yRel


If you delete the floor and fixate one box the spring slowly extends.

If you drag a box slowly the spring extends referring to the distance. The other box only starts to move if you drag fast enough.


- - - - - - - - - - - - - - -


Calculation method:

1)
detecting all coordinates
(x1, y1, x2, y2)

2)
calculating the absolute value of the difference between x and y coordinates (relative coordinates) (they also could be negative but with absolute values it looks nicer :bonk:)
∆x = |x2 - x1| and ∆y = |y2 - y1|

3)
Pythagoras' theorem for calculating the length (L)
L = √(∆x² + ∆y²)
Last edited at 2009/08/05 01:04:56 by KarateBrot
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