diff options
Diffstat (limited to 'setup/joystick.c')
| -rw-r--r-- | setup/joystick.c | 440 |
1 files changed, 0 insertions, 440 deletions
diff --git a/setup/joystick.c b/setup/joystick.c deleted file mode 100644 index 69c0e508..00000000 --- a/setup/joystick.c +++ /dev/null @@ -1,440 +0,0 @@ -// Emacs style mode select -*- C++ -*- -//----------------------------------------------------------------------------- -// -// Copyright(C) 2007 Simon Howard -// -// This program is free software; you can redistribute it and/or -// modify it under the terms of the GNU General Public License -// as published by the Free Software Foundation; either version 2 -// of the License, or (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -// 02111-1307, USA. -// - -#include <stdio.h> -#include <stdlib.h> - -#include "doomtype.h" -#include "textscreen.h" -#include "txt_joybinput.h" - -#include "joystick.h" - -typedef enum -{ - CALIBRATE_CENTER, - CALIBRATE_LEFT, - CALIBRATE_UP, -} calibration_stage_t; - -// SDL joystick successfully initialised? - -static int joystick_initted = 0; - -// Joystick enable/disable - -int usejoystick = 0; - -// Button mappings - -int joybfire = 0; -int joybstrafe = 1; -int joybuse = 2; -int joybspeed = 3; -int joybstrafeleft = -1; -int joybstraferight = -1; - -// Joystick to use, as an SDL joystick index: - -int joystick_index = -1; - -// Which joystick axis to use for horizontal movement, and whether to -// invert the direction: - -int joystick_x_axis = 0; -int joystick_x_invert = 0; - -// Which joystick axis to use for vertical movement, and whether to -// invert the direction: - -int joystick_y_axis = 1; -int joystick_y_invert = 0; - -static txt_button_t *joystick_button; - -static int *all_joystick_buttons[] = { - &joybstraferight, &joybstrafeleft, &joybfire, &joybspeed, - &joybuse, &joybstrafe, -}; - -// -// Calibration -// - -static txt_window_t *calibration_window; -static txt_label_t *calibration_label; -static calibration_stage_t calibrate_stage; -static SDL_Joystick **all_joysticks = NULL; - -// Set the label showing the name of the currently selected joystick - -static void SetJoystickButtonLabel(void) -{ - char *name; - - name = "None set"; - - if (joystick_initted - && joystick_index >= 0 && joystick_index < SDL_NumJoysticks()) - { - name = (char *) SDL_JoystickName(joystick_index); - } - - TXT_SetButtonLabel(joystick_button, name); -} - -// Try to open all joysticks visible to SDL. - -static int OpenAllJoysticks(void) -{ - int i; - int num_joysticks; - int result; - - if (!joystick_initted) - { - return 0; - } - - // SDL_JoystickOpen() all joysticks. - - num_joysticks = SDL_NumJoysticks(); - - all_joysticks = malloc(sizeof(SDL_Joystick *) * num_joysticks); - - result = 0; - - for (i=0; i<num_joysticks; ++i) - { - all_joysticks[i] = SDL_JoystickOpen(i); - - // If any joystick is successfully opened, return true. - - if (all_joysticks[i] != NULL) - { - result = 1; - } - } - - // Success? Turn on joystick events. - - if (result) - { - SDL_JoystickEventState(SDL_ENABLE); - } - else - { - free(all_joysticks); - all_joysticks = NULL; - } - - return result; -} - -// Close all the joysticks opened with OpenAllJoysticks() - -static void CloseAllJoysticks(void) -{ - int i; - int num_joysticks; - - num_joysticks = SDL_NumJoysticks(); - - for (i=0; i<num_joysticks; ++i) - { - if (all_joysticks[i] != NULL) - { - SDL_JoystickClose(all_joysticks[i]); - } - } - - SDL_JoystickEventState(SDL_DISABLE); - - free(all_joysticks); - all_joysticks = NULL; -} - -static void SetCalibrationLabel(void) -{ - char *message = "???"; - - switch (calibrate_stage) - { - case CALIBRATE_CENTER: - message = "Move the joystick to the\n" - "center, and press a button."; - break; - case CALIBRATE_UP: - message = "Move the joystick up,\n" - "and press a button."; - break; - case CALIBRATE_LEFT: - message = "Move the joystick to the\n" - "left, and press a button."; - break; - } - - TXT_SetLabel(calibration_label, message); -} - -static void CalibrateAxis(int *axis_index, int *axis_invert) -{ - SDL_Joystick *joystick; - int best_axis; - int best_value; - int best_invert; - Sint16 axis_value; - int i; - - joystick = all_joysticks[joystick_index]; - - // Check all axes to find which axis has the largest value. We test - // for one axis at a time, so eg. when we prompt to push the joystick - // left, whichever axis has the largest value is the left axis. - - best_axis = 0; - best_value = 0; - best_invert = 0; - - for (i=0; i<SDL_JoystickNumAxes(joystick); ++i) - { - axis_value = SDL_JoystickGetAxis(joystick, i); - - if (abs(axis_value) > best_value) - { - best_value = abs(axis_value); - best_invert = axis_value > 0; - best_axis = i; - } - } - - // Save the best values we have found - - *axis_index = best_axis; - *axis_invert = best_invert; -} - -static int CalibrationEventCallback(SDL_Event *event, void *user_data) -{ - if (event->type == SDL_JOYBUTTONDOWN - && (joystick_index == -1 || event->jbutton.which == joystick_index)) - { - switch (calibrate_stage) - { - case CALIBRATE_CENTER: - // Centering stage selects which joystick to use. - joystick_index = event->jbutton.which; - break; - - case CALIBRATE_LEFT: - CalibrateAxis(&joystick_x_axis, &joystick_x_invert); - break; - - case CALIBRATE_UP: - CalibrateAxis(&joystick_y_axis, &joystick_y_invert); - break; - } - - if (calibrate_stage == CALIBRATE_UP) - { - // Final stage; close the window - - TXT_CloseWindow(calibration_window); - } - else - { - // Advance to the next calibration stage - - ++calibrate_stage; - SetCalibrationLabel(); - } - - return 1; - } - - return 0; -} - -static void NoJoystick(void) -{ - txt_window_t *window; - - window = TXT_NewWindow(NULL); - - TXT_AddWidget(window, - TXT_NewLabel("No joysticks could be opened.\n\n" - "Try configuring your joystick from within\n" - "your OS first.")); - - TXT_SetWindowAction(window, TXT_HORIZ_LEFT, NULL); - TXT_SetWindowAction(window, TXT_HORIZ_CENTER, - TXT_NewWindowEscapeAction(window)); - TXT_SetWindowAction(window, TXT_HORIZ_RIGHT, NULL); - - joystick_index = -1; - SetJoystickButtonLabel(); -} - -static void CalibrateWindowClosed(TXT_UNCAST_ARG(widget), TXT_UNCAST_ARG(unused)) -{ - CloseAllJoysticks(); - TXT_SDL_SetEventCallback(NULL, NULL); - SetJoystickButtonLabel(); -} - -static void CalibrateJoystick(TXT_UNCAST_ARG(widget), TXT_UNCAST_ARG(unused)) -{ - calibrate_stage = CALIBRATE_CENTER; - - // Try to open all available joysticks. If none are opened successfully, - // bomb out with an error. - - if (!OpenAllJoysticks()) - { - NoJoystick(); - return; - } - - calibration_window = TXT_NewWindow("Joystick calibration"); - - TXT_AddWidgets(calibration_window, - TXT_NewLabel("Please follow the following instructions\n" - "in order to calibrate your joystick."), - TXT_NewStrut(0, 1), - calibration_label = TXT_NewLabel("zzz"), - TXT_NewStrut(0, 1), - NULL); - - TXT_SetWindowAction(calibration_window, TXT_HORIZ_LEFT, NULL); - TXT_SetWindowAction(calibration_window, TXT_HORIZ_CENTER, - TXT_NewWindowAbortAction(calibration_window)); - TXT_SetWindowAction(calibration_window, TXT_HORIZ_RIGHT, NULL); - - TXT_SetWidgetAlign(calibration_label, TXT_HORIZ_CENTER); - TXT_SDL_SetEventCallback(CalibrationEventCallback, NULL); - - TXT_SignalConnect(calibration_window, "closed", CalibrateWindowClosed, NULL); - - // Start calibration - - joystick_index = -1; - calibrate_stage = CALIBRATE_CENTER; - - SetCalibrationLabel(); -} - -void JoyButtonSetCallback(TXT_UNCAST_ARG(widget), TXT_UNCAST_ARG(variable)) -{ - TXT_CAST_ARG(int, variable); - unsigned int i; - - // Only allow a button to be bound to one action at a time. If - // we assign a key that another action is using, set that other action - // to -1. - - for (i=0; i<arrlen(all_joystick_buttons); ++i) - { - if (variable != all_joystick_buttons[i] - && *variable == *all_joystick_buttons[i]) - { - *all_joystick_buttons[i] = -1; - } - } -} - - -// -// GUI -// - -static void JoystickWindowClosed(TXT_UNCAST_ARG(window), TXT_UNCAST_ARG(unused)) -{ - if (joystick_initted) - { - SDL_QuitSubSystem(SDL_INIT_JOYSTICK); - joystick_initted = 0; - } -} - -static void AddJoystickControl(txt_table_t *table, char *label, int *var) -{ - txt_joystick_input_t *joy_input; - - joy_input = TXT_NewJoystickInput(var); - - TXT_AddWidget(table, TXT_NewLabel(label)); - TXT_AddWidget(table, joy_input); - - TXT_SignalConnect(joy_input, "set", JoyButtonSetCallback, var); -} - -void ConfigJoystick(void) -{ - txt_window_t *window; - txt_table_t *button_table; - txt_table_t *joystick_table; - - if (!joystick_initted) - { - joystick_initted = SDL_Init(SDL_INIT_JOYSTICK) >= 0; - } - - window = TXT_NewWindow("Joystick configuration"); - - TXT_AddWidgets(window, - TXT_NewCheckBox("Enable joystick", &usejoystick), - joystick_table = TXT_NewTable(2), - TXT_NewSeparator("Joystick buttons"), - button_table = TXT_NewTable(2), - NULL); - - TXT_SetColumnWidths(joystick_table, 20, 15); - - TXT_AddWidgets(joystick_table, - TXT_NewLabel("Current joystick"), - joystick_button = TXT_NewButton("zzzz"), - NULL); - - TXT_SetColumnWidths(button_table, 20, 15); - - AddJoystickControl(button_table, "Fire", &joybfire); - AddJoystickControl(button_table, "Use", &joybuse); - - // High values of joybspeed are used to activate the "always run mode" - // trick in Vanilla Doom. If this has been enabled, not only is the - // joybspeed value meaningless, but the control itself is useless. - - if (joybspeed < 20) - { - AddJoystickControl(button_table, "Speed", &joybspeed); - } - - AddJoystickControl(button_table, "Strafe", &joybstrafe); - - AddJoystickControl(button_table, "Strafe Left", &joybstrafeleft); - AddJoystickControl(button_table, "Strafe Right", &joybstraferight); - - TXT_SignalConnect(joystick_button, "pressed", CalibrateJoystick, NULL); - TXT_SignalConnect(window, "closed", JoystickWindowClosed, NULL); - - SetJoystickButtonLabel(); -} - |