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Newcomers DBPro Corner / opposite angles of sprites

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Gatorules
15
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Joined: 17th Dec 2008
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Posted: 21st Dec 2008 20:07
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I am trying to make a very simple game and in the part of the code that I am stuck on I want the ball to bounce off of a blocker and set the angle to the opposite direction. Can someone please help me. I am pretty sure that the problem is in the part that says "-1*ballangle+360).

Here is my code:
if ( dbSpriteCollision ( ball, blocker ) )
dbRotateSprite( ball, -1*dbSpriteAngle(ball)+360);
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Virtual Nomad
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18
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Joined: 14th Dec 2005
Location: SF Bay Area, USA
Posted: 22nd Dec 2008 01:20 Edited at: 22nd Dec 2008 01:20
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try:

wrapvalue(ballangle+180)

...for easy 'opposite direction' behavior.

Virtual Nomad @ California, USA
AMD Phenom™ X4 9750 Quad-Core @ 2.4 GHz . 8 GB PC2-6400 RAM
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Not_Maindric
17
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Joined: 10th Jul 2007
Location: Omaha, NE
Posted: 30th Dec 2008 17:50
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This looks like GDK, but anyways...

Quote: "if ( dbSpriteCollision ( ball, blocker ) )"


This looks like it needs a condition....

Quote: "dbRotateSprite( ball, -1*dbSpriteAngle(ball)+360);"


Just put



That will do less math, so more speed, and it will rotate the according sprite correctly... Not sure how you have it set up, but that is what I would think would make it work...

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