void UIScreen::primary_timer_func()
{
if (use_joystick_as_mouse)
{
if (Framework::joystick)
{
float sensitivity = 8.0;
ALLEGRO_MOUSE_STATE mouse_state;
al_get_mouse_state(&mouse_state);
ALLEGRO_JOYSTICK_STATE joystick_state;
al_get_joystick_state(Framework::joystick, &joystick_state);
// TODO:
// right now the joystick axis to use for the mouse emulation is static,
// this should be fixed so that an axis might be chosen by the user
// and/or multiple joysticks could also be used
if (joystick_state.stick[0].axis[0] != 0.0 || joystick_state.stick[0].axis[1] != 0.0)
{
al_set_mouse_xy(display->al_display,
mouse_state.x + joystick_state.stick[0].axis[0]*sensitivity,
mouse_state.y + joystick_state.stick[0].axis[1]*sensitivity);
}
}
}
// call the parent's usual functions
UIWidget::primary_timer_func();
UIWidget::draw_func();
on_draw_after_children();
}
static void setup_joystick_values(ALLEGRO_JOYSTICK *joy)
{
ALLEGRO_JOYSTICK_STATE jst;
int i, j;
if (joy == NULL) {
num_sticks = 0;
num_buttons = 0;
return;
}
al_get_joystick_state(joy, &jst);
num_sticks = al_get_joystick_num_sticks(joy);
if (num_sticks > MAX_STICKS)
num_sticks = MAX_STICKS;
for (i = 0; i < num_sticks; i++) {
num_axes[i] = al_get_joystick_num_axes(joy, i);
for (j = 0; j < num_axes[i]; ++j)
joys[i][j] = jst.stick[i].axis[j];
}
num_buttons = al_get_joystick_num_buttons(joy);
if (num_buttons > MAX_BUTTONS) {
num_buttons = MAX_BUTTONS;
}
for (i = 0; i < num_buttons; i++) {
joys_buttons[i] = (jst.button[i] >= 16384);
}
}
static void draw(ALLEGRO_JOYSTICK *curr_joy)
{
int x = 100;
int y = 100;
ALLEGRO_JOYSTICK_STATE joystate;
int i;
al_clear_to_color(al_map_rgb(0, 0, 0));
if (curr_joy) {
al_get_joystick_state(curr_joy, &joystate);
for (i = 0; i < al_get_joystick_num_sticks(curr_joy); i++) {
al_draw_filled_circle(
x+joystate.stick[i].axis[0]*20 + i * 80,
y+joystate.stick[i].axis[1]*20,
20, al_map_rgb(255, 255, 255)
);
}
for (i = 0; i < al_get_joystick_num_buttons(curr_joy); i++) {
if (joystate.button[i]) {
al_draw_filled_circle(
i*20+10, 400, 9, al_map_rgb(255, 255, 255)
);
}
}
}
al_flip_display();
}
/**
Reads the given joystick's state.
@param stick joystick.
*/
void retrieve(const Joystick &stick) {
al_get_joystick_state(stick.get(), &get());
}
