Java-Gaming.org
Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
Featured games (78)
games approved by the League of Dukes
Games in Showcase (406)
games submitted by our members
Games in WIP (293)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  [Solved]Bullet Logic  (Read 323 times)
0 Members and 1 Guest are viewing this topic.
Offline SonicPixelation

Senior Newbie





« Posted 2012-12-31 03:35:11 »

I looked everywhere for this but couldn't find it. What I wanted to implement into a game is a simple 2d bullet logic that is controlled by the mouse. I understand that you use the slope to determine it but I want to find a guess the ratio between x Velocity and y Velocity to get it to go in the right angle. any help would be greatly appreciated, even if it you are doing it all wrong use this method instead.
Online ra4king

JGO Kernel


Medals: 264
Projects: 2


I'm the King!


« Reply #1 - Posted 2012-12-31 04:42:46 »

vx = speed * cos(angle);
vy = speed * sin(angle);

Add the velocities to their respective components each frame Smiley

Offline SonicPixelation

Senior Newbie





« Reply #2 - Posted 2012-12-31 20:08:14 »

Thanks a lot got up and running works like a charm
Pages: [1]
  ignore  |  Print  
 
 

Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
 
Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars and Titan!

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

The invasion has landed! On Mars! And you're there to beat 'em!
cubemaster21 (72 views)
2013-05-17 21:29:12

alaslipknot (83 views)
2013-05-16 21:24:48

gouessej (113 views)
2013-05-16 00:53:38

gouessej (108 views)
2013-05-16 00:17:58

theagentd (119 views)
2013-05-15 15:01:13

theagentd (108 views)
2013-05-15 15:00:54

StreetDoggy (152 views)
2013-05-14 15:56:26

kutucuk (176 views)
2013-05-12 17:10:36

kutucuk (173 views)
2013-05-12 15:36:09

UnluckyDevil (182 views)
2013-05-12 05:09:57
Complex number cookbook
by Roquen
2013-04-24 12:47:31

2D Dynamic Lighting
by Oskuro
2013-04-17 16:46:12

2D Dynamic Lighting
by Oskuro
2013-04-17 16:45:57

2D Dynamic Lighting
by Oskuro
2013-04-17 16:23:20

Noise (bandpassed white)
by Roquen
2013-04-05 17:36:01

Noise (bandpassed white)
by Roquen
2013-04-03 16:17:38

Java Data structures
by Roquen
2013-03-29 13:21:12

Topic Request
by kutucuk
2013-03-22 21:42:01
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!
Page created in 0.077 seconds with 20 queries.