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AppGameKit Classic Chat / AGK - Physics Help!

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Benner
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Joined: 5th Mar 2013
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Posted: 5th Mar 2013 02:45
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I'm trying to complete a project for school(2d side-scroller), and I'm stuck on a problem.

The problem is with trying to move the character and keep gravity. Right now i can have either gravity pulling him down or i can move his position.

agk::SetSpritePhysicsVelocity(spriteIndex, speedX, speedY);

that's how I'm changing his position(tried using agk::SetSpriteX same thing)

I'm using visual studio 2008.

this is my first time here so it may be in the wrong spot but any help would be appreciated.
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baxslash
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Posted: 5th Mar 2013 09:53 Edited at: 5th Mar 2013 09:53
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The problem is that you are setting the vertical velocity every loop. To use the physics system gravity you just need to let it make it's own mind up what velocity to apply like so:
agk::SetSpritePhysicsVelocity(spriteIndex, speedX, GetSpritePhysicsVelocityY(spriteIndex));

Welcome to the forums by the way


this.mess = abs(sin(times#))
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Benner
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Posted: 5th Mar 2013 16:52
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Thank you!, I was sitting there or 3+ hours at this last night, I guess through staring at code for so long I just passed that function
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baxslash
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Posted: 5th Mar 2013 16:53
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It's not that obvious anyway but generally if you set the position or velocity manually you negate any other forces.


this.mess = abs(sin(times#))
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Markus
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Posted: 5th Mar 2013 18:43
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interesting too
SetSpritePhysicsForce
SetSpritePhysicsImpulse
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