R0J0hound's Recent Forum Activity

  • If you want to use the bullet behavior, the simplest solution would be to set vx,vy in an event above the events I gave, and then setting the bullet angleOfMotion and speed in an event after.

    Vx = speed*cos(angleOfMotion)

    Vy = speed*sin(angleOfMotion)

    Speed = distance(0,0,vx,vy)

    AngleOfMotion = angle(0,0,vx,vy)

    The other equation you gave was for figuring out the initial speed to stop in a specified distance. From your description you don’t need that. You just need to slow it down.

    Global number speed=0

    Global number dir=0

    For each ball

    — set dir to angle(0,0,ball.vx,ball.vy)

    — set speed to max(0, distance(0,0,ball.vx,ball.vy)-200*dt)

    — ball: set vx to speed*cos(dir)

    — ball: set vy to speed*sin(dir)

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  • I guess the issue is there is an infinite loop when two balls collide in your events.

    Anyways here's a better approach.

    When a ball hits a wall the ball is moved out in the closest direction from the wall and a bounce calculation is done with that direction.

    In a similar fashion when two balls collide they are moved apart and a bounce calculation is done.

    All balls are assumed to have the same mass and all the walls are not rotated.

    In events i used 16 and 32. That's the radius of the balls and 2*radius.

    dropbox.com/s/2apd1uwsnsylzpu/collision_responce.capx

    Damping can be done by multiplying the velocity by 0.995 or something. Angular damping doesn't make sense unless we are doing angular velocity too.

    If you want different masses or different levels of elasticity you can change up the bounce code with:

    en.wikipedia.org/wiki/Collision_response

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  • When you access value from indexes out of range then it always returns 0. Pushing 0 probably doesn't help with this.

    Anyways, Here's another idea to approach the idea. Check all values in uniqueArray before adding the new value. 

    +---------------------------+
|array: for each x |
+---------------------------+
 local number match=0
 +-----------------------------------+
 |uniqueArray: for each x |set match to 1
 |array.curValue=uniqueArray.curValue|
 +-----------------------------------+
 +---------------------------+
 |match=0 |uniqueArray: push array.curValue to back
 +---------------------------+

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  • Here's a mess of previous topics. There are probably more.

    construct.net/en/forum/construct-3/how-do-i-8/math-result-text-line-145507

    construct.net/en/forum/construct-3/how-do-i-8/create-programming-language-138650

    construct.net/en/forum/construct-2/your-construct-creations-23/r0j0s-experiments-69314

    Specific to what you're going for here's this:

    More functions and expressions can be added in the "namelookup" function.

    dropbox.com/s/beavbwwu1usywyg/parser_example.capx

    It won't allow invalid syntax but the error messages need work.

    Anyways, the simplest would be to do a few string replaces and running the expression with the browser's execjs expression. However this isn't forgiving if there are syntax errors and can be a problem if some arbitrary js is run.

  • In the layout editor it only takes hex numbers. In events you use decimal numbers but you can use the set bit expression.

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