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jynx

Junior Newbie

 « Posted 2011-08-10 19:33:14 »

Hello, I'm having troubles figuring out how to convert my direction (in degrees) to rise over run for my player's x and y variables and still be able to limit the speed of the player.

JGO Ninja

Medals: 26
Projects: 3
Exp: 6 years

One for all!

 « Reply #1 - Posted 2011-08-10 19:55:58 »

Math.atan2 should do the job

EDIT:
I'm lazy, and my reply suggests it aswell. I'm going to give you more than just that little hint: The source code I used to calculate the velocities of a projectile shot form the player.
 1  2  3  4  5  6  7  8 `Shot shot = new Shot(player.getX(), player.getY(),         player.getRotation());shot.setXV(shot.getXV()         + Math.cos(Math.toRadians(player.getRotation()))         * GameMain.shotSpeed + player.getXVelocity());shot.setYV(shot.getYV()         + Math.sin(Math.toRadians(player.getRotation()))         * GameMain.shotSpeed + player.getYVelocity());`

It should be pretty selfexplainatory. The angle was entered in radians, and is normally in degress for my convinience.

Cheers!

Eli Delventhal

JGO Kernel

Medals: 42
Projects: 11
Exp: 10 years

Game Engineer

 « Reply #2 - Posted 2011-08-10 20:23:13 »

cos = X, sin = Y.

See my work:
OTC Software
jynx

Junior Newbie

 « Reply #3 - Posted 2011-08-10 20:32:12 »

Yep, thanks a bunch guys, works perfectly!
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