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[GTK3] Add analog speed controls

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This commit is contained in:
Maximilian Mader 2020-05-04 03:30:10 +02:00
parent 008db16fb5
commit 65fe7f2f9c
Signed by: Max
GPG Key ID: F71D56A3151C4FB3
1 changed files with 45 additions and 7 deletions
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52
gtk3/main.c
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@ -118,6 +118,7 @@ typedef struct GuiData {
bool rewind_paused;
bool turbo_down;
double clock_mutliplier;
double analog_clock_multiplier;
// Input
uint8_t pressed_buttons;
@ -1179,7 +1180,10 @@ static void vblank(GB_gameboy_t *gb) {
GB_set_pixels_output(gb, get_pixels());
if (gui_data.underclock_down && gui_data.clock_mutliplier > 0.5) {
if (config.analog_speed_controls && gui_data.analog_clock_multiplier != 0.0) {
GB_set_clock_multiplier(gb, gui_data.analog_clock_multiplier);
}
else if (gui_data.underclock_down && gui_data.clock_mutliplier > 0.5) {
gui_data.clock_mutliplier -= 1.0/16;
GB_set_clock_multiplier(gb, gui_data.clock_mutliplier);
}
@ -1252,31 +1256,63 @@ static void vblank(GB_gameboy_t *gb) {
g_idle_add((GSourceFunc) on_vblank, NULL);
}
static double clamp_double(double min, double max, double value) {
if (value < min) return min;
if (value > max) return max;
return value;
}
static double max_double(double a, double b) {
if (a > b) return a;
return b;
}
static double min_double(double a, double b) {
if (a < b) return a;
return b;
}
static void handle_events(GB_gameboy_t *gb) {
SDL_GameControllerUpdate();
uint8_t controller_state = 0;
double analog_clock_multiplier = 1.0;
for (unsigned i = 0; i < gui_data.controller_count; i++) {
struct Controller_t *s = &gui_data.controllers[i];
int16_t x_axis = SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_LEFTX);
int16_t y_axis = SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_LEFTY);
int16_t left_x_axis = SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_LEFTX);
int16_t left_y_axis = SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_LEFTY);
if (x_axis >= JOYSTICK_HIGH) {
int16_t right_x_axis = SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_RIGHTX);
int16_t right_y_axis = SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_RIGHTY);
if (config.analog_speed_controls) {
double left_trigger = (double) SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_TRIGGERLEFT) / (double) 32767;
double right_trigger = (double) SDL_GameControllerGetAxis(s->controller, SDL_CONTROLLER_AXIS_TRIGGERRIGHT) / (double) 32767;
if (left_trigger > 0.0) {
analog_clock_multiplier = min_double(analog_clock_multiplier, clamp_double(1.0 / 3, 1.0, 1 - left_trigger + 0.2));
}
else if (right_trigger > 0.0) {
analog_clock_multiplier = max_double(analog_clock_multiplier, clamp_double(1.0, 3.0, right_trigger * 3 + 0.8));
}
}
if (left_x_axis >= JOYSTICK_HIGH || right_x_axis >= JOYSTICK_HIGH) {
gui_data.last_used_controller = s;
controller_state |= BUTTON_MASK_RIGHT;
}
else if (x_axis <= -JOYSTICK_HIGH) {
else if (left_x_axis <= -JOYSTICK_HIGH || right_x_axis <= -JOYSTICK_HIGH) {
gui_data.last_used_controller = s;
controller_state |= BUTTON_MASK_LEFT;
}
if (y_axis >= JOYSTICK_HIGH) {
if (left_y_axis >= JOYSTICK_HIGH || right_y_axis >= JOYSTICK_HIGH) {
gui_data.last_used_controller = s;
controller_state |= BUTTON_MASK_DOWN;
}
else if (y_axis <= -JOYSTICK_HIGH) {
else if (left_y_axis <= -JOYSTICK_HIGH || right_y_axis <= -JOYSTICK_HIGH) {
gui_data.last_used_controller = s;
controller_state |= BUTTON_MASK_UP;
}
@ -1322,6 +1358,8 @@ static void handle_events(GB_gameboy_t *gb) {
}
}
gui_data.analog_clock_multiplier = analog_clock_multiplier;
GB_set_key_state(gb, GB_KEY_RIGHT, (gui_data.pressed_buttons & BUTTON_MASK_RIGHT) | (controller_state & BUTTON_MASK_RIGHT));
GB_set_key_state(gb, GB_KEY_LEFT, (gui_data.pressed_buttons & BUTTON_MASK_LEFT) | (controller_state & BUTTON_MASK_LEFT));
GB_set_key_state(gb, GB_KEY_UP, (gui_data.pressed_buttons & BUTTON_MASK_UP) | (controller_state & BUTTON_MASK_UP));