// returns if we are done or not
func key_handler() bool {
var keys []uint8 = sdl.GetKeyState()
if keys[sdl.K_i] != 0 {
view_z += 1
}
if keys[sdl.K_o] != 0 {
view_z -= 1
}
if keys[sdl.K_ESCAPE] != 0 {
return true
}
if keys[sdl.K_UP] != 0 {
view_rotx += 1
}
if keys[sdl.K_DOWN] != 0 {
view_rotx -= 1.0
}
if keys[sdl.K_LEFT] != 0 {
view_roty += 1.0
}
if keys[sdl.K_RIGHT] != 0 {
view_roty -= 1.0
}
if keys[sdl.K_z] != 0 {
if (sdl.GetModState() & sdl.KMOD_RSHIFT) != 0 {
view_rotz -= 1.0
} else {
view_rotz += 1.0
}
}
if keys[sdl.K_w] != 0 {
gl.Translatef(0.0, 0.0, 1)
}
if keys[sdl.K_s] != 0 {
gl.Translatef(0.0, 0.0, -1)
}
if keys[sdl.K_a] != 0 {
gl.Translatef(-1, 0, 0)
}
if keys[sdl.K_d] != 0 {
gl.Translatef(1, 0, 0)
}
if keys[sdl.K_q] != 0 {
gl.Translatef(0, 1, 0)
}
if keys[sdl.K_e] != 0 {
gl.Translatef(0, -1, 0)
}
return false
}
func main() {
flag.Parse()
var done bool
var keys []uint8
sdl.Init(sdl.INIT_VIDEO)
var screen = sdl.SetVideoMode(300, 300, 16, sdl.OPENGL|sdl.RESIZABLE)
if screen == nil {
sdl.Quit()
panic("Couldn't set 300x300 GL video mode: " + sdl.GetError() + "\n")
}
if gl.Init() != 0 {
panic("gl error")
}
sdl.WM_SetCaption("Gears", "gears")
init_()
reshape(int(screen.W), int(screen.H))
done = false
for !done {
idle()
for e := sdl.PollEvent(); e != nil; e = sdl.PollEvent() {
switch e.(type) {
case *sdl.ResizeEvent:
re := e.(*sdl.ResizeEvent)
screen = sdl.SetVideoMode(int(re.W), int(re.H), 16,
sdl.OPENGL|sdl.RESIZABLE)
if screen != nil {
reshape(int(screen.W), int(screen.H))
} else {
panic("we couldn't set the new video mode??")
}
break
case *sdl.QuitEvent:
done = true
break
}
}
keys = sdl.GetKeyState()
if keys[sdl.K_ESCAPE] != 0 {
done = true
}
if keys[sdl.K_UP] != 0 {
view_rotx += 5.0
}
if keys[sdl.K_DOWN] != 0 {
view_rotx -= 5.0
}
if keys[sdl.K_LEFT] != 0 {
view_roty += 5.0
}
if keys[sdl.K_RIGHT] != 0 {
view_roty -= 5.0
}
if keys[sdl.K_z] != 0 {
if (sdl.GetModState() & sdl.KMOD_RSHIFT) != 0 {
view_rotz -= 5.0
} else {
view_rotz += 5.0
}
}
draw()
}
sdl.Quit()
return
}