324 reputation
137
bio website fantasyvengeance.com
location Italy
age 26
visits member for 1 year, 10 months
seen Dec 28 '13 at 17:26

Java and Android developer with interests in 3D stuff and game development.

Linux user since 2003, self taught in electronic, former musician.

Graduated in "Computer Science" at the University of Verona (Italy) with a thesis involving ARM boards, real time OSs and custom graphic libraries.

Three time winner at the National Turing Machine Contest of the University of Pisa (Italy) back in high school.


Dec
24
comment To stop Spite animation scrolling along the background in openGL ES
Then I don't know where the problem is, sorry :(
Dec
23
comment To stop Spite animation scrolling along the background in openGL ES
ok, but adding those 3 lines change somethings or the problem is still there?
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
15
comment Sprite Animation in Android with OpenGL ES
You can find the answer here: gamedev.stackexchange.com/questions/37510/…
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)
Oct
1
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
No, scale as in touchPos.x = (2*event.getX())/getWidth() -1.f;
Oct
1
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
Yes it is the same use mx,my instead of rx,ry. I've supposed that your opengl screen coordinates goes from the top-left corner (-1,1) to the bottom-right corner (1,-1) If you are using different screen coordinates just scale event.getX() and event.getY() in according to them.
Oct
1
comment Is it possible to emulate a MovieTexture with dynamically loaded images?
How long is the video? Framerate?
Oct
1
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
ok, assuming that (rx,ry) is the center of rotation you need to do touchPos.x-=rx; touchPos.y-=ry;
Sep
29
comment Sprite animation in openGL - Some frames are being skipped
I don't mind, I've asked you just to know if it work or not. I'm curious ;)
Sep
29
comment Sprite animation in openGL - Some frames are being skipped
Did you tested my code?
Sep
28
comment Rotate triangle so that its tip points in the direction of the point on the screen that we last touched
The center of rotation of the new triangle is (0,0,0) or something else?
Sep
26
comment Sprite animation in openGL - Some frames are being skipped
Ok I'm editing the answer
Sep
26
comment Sprite animation in openGL - Some frames are being skipped
Ok I will try to explain it better, do you prefear to edit your Renderer class (easy) or only FragileSquare?
Sep
26
comment Sprite animation in openGL - Some frames are being skipped
Sorry, I was adding another comment because of the characters limit. No in the 1st idea you neet to replace System.currentTimeMillis() with (System.currentTimeMillis()-MyRenderer.flag2)
Sep
26
comment Sprite animation in openGL - Some frames are being skipped
delta is now the amount of milliseconds between each call to the draw method. In your if(MyRender.flag2==1) replace System.currentTimeMillis() with t+=delta; I forgot to tell you that you need to declare int t; near int delta; If you want to repeat the animation every time there is a collision you need to reset t to 0 when there is not a collision (example, add an else{ t=0; })
Sep
26
comment Sprite animation in openGL - Some frames are being skipped
Ok, I have two solutions. In your renderer class set flag2=System.currentTimeMillis() instead of 1 when there is a collision, 0 otherwise. In the draw function replace if(MyRender.flag2==1) with if(MyRender.flag2>0). MyRender.flag2 is now your timestamp and you are still using one static member. Second idea, in your FragileSquare class add a member long timestamp=System.currentTimeMillis(); and another one int delta; At the beginning of your draw method add delta = System.currentTimeMillis(); timestamp=System.currentTimeMillis();