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JustChris · Joined: 03 Nov 2005 Posts: 21

I have played around with the pspgl sprite demo long enough to finally be able to port my game logic from a shooter I made in SDL (on PC) over to the PSP. I'm stuck on how pspgl receives all the key inputs, though.

Using glutJoystickFunc is straightforward, but the sprite demo only shows the letters assigned to the Square, Triangle, Cross and Circle buttons. I really want to get input with the directional buttons rather than the analog nub. So which letters on the keyboard correspond the D-pad directions, as well as Select and Start? I could not find the assignment to these particular buttons in GL/glut.h.

Shatterdome · Joined: 22 Nov 2005 Posts: 11

Wel i'll give you the answer because I wish someone would have told me when I was trying to figure it out :P

JustChris · Joined: 03 Nov 2005 Posts: 21

I already know how to do this with pspctrl.h, but here I'm just looking for the glut way. Meanwhile, I'll just try to combine that functionality with glut and see what happens, if using two different input methods conflict at all.

JustChris · Joined: 03 Nov 2005 Posts: 21

Let me see it anyone can answer this question. In the pspgl sprite demo (the one with the sky background and 4 rows of icons that you can shake and rotate) there is a list of keys assigned to 4 buttons on the PSP.

Near the beginning of the file I find the four actions defined here

jsgf · Joined: 12 Jul 2005 Posts: 254

Note that glut is a standard API, and not psp-specific, so you can look for documentation elsewhere. But like the rest of PSPGL, it isn't complete compared to real glut, but it's worth trying anyway.

The letters are somewhat arbitrary but are intended to be mnemonic: 'o' looks like a circle, 'd' for a triangle-shaped delta, 'q' for sQuare, 's' for select, 'a' for stArt, 'x' for cross, etc.

The arrow keys come through the Special callback, so you need something like:

JustChris · Joined: 03 Nov 2005 Posts: 21

I know that Glut is not PSP-specific, but I was just thinking that the code for the controls was initialized somewhere else. But now it makes sense to me, now that I know where to look and saw how it was done. And I can see it all boils down to using pspctrl.h and sceCtrlReadBufferPositive in the glutMainLoop function. Pretty clever.