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Mar
3
awarded  Yearling
Mar
3
answered OpenGL ES 2 inheriting issues
Mar
3
answered AI multithreading
Feb
6
awarded  Informed
Sep
23
awarded  Yearling
Jun
24
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Jun
19
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Jun
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Feb
19
awarded  Fanatic
Nov
16
revised sprite animation in openGL
edited body
Nov
2
comment Passing elapsed time to the update function from the game loop
@Marton thank you, I didn't know that. I've deleted my comment.
Oct
31
awarded  Critic
Oct
22
awarded  Enthusiast
Oct
15
answered Sprite Animation in Android with OpenGL ES
Oct
15
comment Sprite Animation in Android with OpenGL ES
You can find the answer here: gamedev.stackexchange.com/questions/37510/…
Oct
3
revised Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
added 12 characters in body
Oct
3
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
it is the same result as before or a different one?
Oct
3
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
Your problem is normal because you are still using touchPos.x = (2*event.getX())/getWidth() -1.0f; but as I've said before you should write touchPos.x = (2*event.getX())/getWidth() -1.0f -mx; and -my in touchPos.y
Oct
2
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
Can you update the SurfaceView code?
Oct
2
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
well, think about it. event.getX() goes from 0 to the value of getWidth() so event.getX()/getWidth() goes from 0 to 1. These is a 2* so the range is from 0 to 2 but your coordinates goes from -1 to 1 so subtract 1 and that's all. By the way, I was assuming that the center of the screen is (0,0)