added optional button to restart game (door, panel and touch variants)
[rocksndiamonds.git] / src / libgame / joystick.c
index b286de23732f769a220d7775d45b2efbfaadbd63..14ba7d2c61ee9eace068f84767b5176096ea2314 100644 (file)
@@ -1,15 +1,13 @@
-/***********************************************************
-* Artsoft Retro-Game Library                               *
-*----------------------------------------------------------*
-* (c) 1995-2006 Artsoft Entertainment                      *
-*               Holger Schemel                             *
-*               Detmolder Strasse 189                      *
-*               33604 Bielefeld                            *
-*               Germany                                    *
-*               e-mail: info@artsoft.org                   *
-*----------------------------------------------------------*
-* joystick.c                                               *
-***********************************************************/
+// ============================================================================
+// Artsoft Retro-Game Library
+// ----------------------------------------------------------------------------
+// (c) 1995-2014 by Artsoft Entertainment
+//                         Holger Schemel
+//                 info@artsoft.org
+//                 https://www.artsoft.org/
+// ----------------------------------------------------------------------------
+// joystick.c
+// ============================================================================
 
 #if defined(PLATFORM_FREEBSD)
 #include <machine/joystick.h>
 #include "misc.h"
 
 
-/* ========================================================================= */
-/* platform dependent joystick functions                                     */
-/* ========================================================================= */
-
-#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
-void UnixInitJoysticks()
-{
-  static boolean unix_joystick_subsystem_initialized = FALSE;
-  boolean print_warning = !unix_joystick_subsystem_initialized;
-  int i;
-
-  for (i = 0; i < MAX_PLAYERS; i++)
-  {
-    char *device_name = setup.input[i].joy.device_name;
-
-    /* this allows subsequent calls to 'InitJoysticks' for re-initialization */
-    if (joystick.fd[i] != -1)
-    {
-      close(joystick.fd[i]);
-      joystick.fd[i] = -1;
-    }
-
-    if (!setup.input[i].use_joystick)
-      continue;
-
-    if (access(device_name, R_OK) != 0)
-    {
-      if (print_warning)
-       Error(ERR_WARN, "cannot access joystick device '%s'", device_name);
-
-      continue;
-    }
-
-    if ((joystick.fd[i] = open(device_name, O_RDONLY)) < 0)
-    {
-      if (print_warning)
-       Error(ERR_WARN, "cannot open joystick device '%s'", device_name);
-
-      continue;
-    }
-
-    joystick.status = JOYSTICK_ACTIVATED;
-  }
-
-  unix_joystick_subsystem_initialized = TRUE;
-}
-
-boolean UnixReadJoystick(int fd, int *x, int *y, boolean *b1, boolean *b2)
-{
-#if defined(PLATFORM_FREEBSD)
-  struct joystick joy_ctrl;
-#else
-  struct joystick_control
-  {
-    int buttons;
-    int x;
-    int y;
-  } joy_ctrl;
-#endif
-
-  if (read(fd, &joy_ctrl, sizeof(joy_ctrl)) != sizeof(joy_ctrl))
-    return FALSE;
-
-  if (x != NULL)
-    *x = joy_ctrl.x;
-  if (y != NULL)
-    *y = joy_ctrl.y;
-
-#if defined(PLATFORM_FREEBSD)
-  if (b1 != NULL)
-    *b1 = joy_ctrl.b1;
-  if (b2 != NULL)
-    *b2 = joy_ctrl.b2;
-#else
-  if (b1 != NULL)
-    *b1 = joy_ctrl.buttons & 1;
-  if (b2 != NULL)
-    *b2 = joy_ctrl.buttons & 2;
-#endif
-
-  return TRUE;
-}
-#endif /* PLATFORM_UNIX && !TARGET_SDL */
-
-
-/* ========================================================================= */
-/* platform independent joystick functions                                   */
-/* ========================================================================= */
-
-#define TRANSLATE_JOYSYMBOL_TO_JOYNAME 0
-#define TRANSLATE_JOYNAME_TO_JOYSYMBOL 1
-
-void translate_joyname(int *joysymbol, char **name, int mode)
-{
-  static struct
-  {
-    int joysymbol;
-    char *name;
-  } translate_joy[] =
-  {
-    { JOY_LEFT,                "joystick_left" },
-    { JOY_RIGHT,       "joystick_right" },
-    { JOY_UP,          "joystick_up" },
-    { JOY_DOWN,                "joystick_down" },
-    { JOY_BUTTON_1,    "joystick_button_1" },
-    { JOY_BUTTON_2,    "joystick_button_2" },
-  };
-
-  int i;
-
-  if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
-  {
-    *name = "[undefined]";
-
-    for (i = 0; i < 6; i++)
-    {
-      if (*joysymbol == translate_joy[i].joysymbol)
-      {
-       *name = translate_joy[i].name;
-       break;
-      }
-    }
-  }
-  else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
-  {
-    *joysymbol = 0;
-
-    for (i = 0; i < 6; i++)
-    {
-      if (strEqual(*name, translate_joy[i].name))
-      {
-       *joysymbol = translate_joy[i].joysymbol;
-       break;
-      }
-    }
-  }
-}
-
-char *getJoyNameFromJoySymbol(int joysymbol)
-{
-  char *name;
-
-  translate_joyname(&joysymbol, &name, TRANSLATE_JOYSYMBOL_TO_JOYNAME);
-  return name;
-}
-
-int getJoySymbolFromJoyName(char *name)
-{
-  int joysymbol;
-
-  translate_joyname(&joysymbol, &name, TRANSLATE_JOYNAME_TO_JOYSYMBOL);
-  return joysymbol;
-}
+// ============================================================================
+// platform independent joystick functions
+// ============================================================================
 
 int getJoystickNrFromDeviceName(char *device_name)
 {
@@ -206,9 +54,42 @@ char *getDeviceNameFromJoystickNr(int joystick_nr)
          joystick_device_name[joystick_nr] : "");
 }
 
+char *getFormattedJoystickName(const char *name_raw)
+{
+  static char name[MAX_JOYSTICK_NAME_LEN + 1];
+  boolean name_skip_space = TRUE;
+  int i, j;
+
+  if (name_raw == NULL)
+    name_raw = "(unknown joystick)";
+
+  // copy joystick name, cutting leading and multiple spaces
+  for (i = 0, j = 0; i < strlen(name_raw) && i < MAX_JOYSTICK_NAME_LEN; i++)
+  {
+    if (name_raw[i] != ' ')
+    {
+      name[j++] = name_raw[i];
+      name_skip_space = FALSE;
+    }
+    else if (!name_skip_space)
+    {
+      name[j++] = name_raw[i];
+      name_skip_space = TRUE;
+    }
+  }
+
+  // cut trailing space
+  if (j > 0 && name[j - 1] == ' ')
+    j--;
+
+  name[j] = '\0';
+
+  return name;
+}
+
 static int JoystickPositionPercent(int center, int border, int actual)
 {
-  long range, position;
+  int range, position;
   int percent;
 
   if (border < center && actual > center)
@@ -227,45 +108,30 @@ static int JoystickPositionPercent(int center, int border, int actual)
   return percent;
 }
 
-void CheckJoystickData()
+int JoystickExt(int player_nr, boolean use_as_joystick_nr)
 {
-  int i;
-  int distance = 100;
-
-  for (i = 0; i < MAX_PLAYERS; i++)
-  {
-    if (setup.input[i].joy.xleft >= setup.input[i].joy.xmiddle)
-      setup.input[i].joy.xleft = setup.input[i].joy.xmiddle - distance;
-    if (setup.input[i].joy.xright <= setup.input[i].joy.xmiddle)
-      setup.input[i].joy.xright = setup.input[i].joy.xmiddle + distance;
-
-    if (setup.input[i].joy.yupper >= setup.input[i].joy.ymiddle)
-      setup.input[i].joy.yupper = setup.input[i].joy.ymiddle - distance;
-    if (setup.input[i].joy.ylower <= setup.input[i].joy.ymiddle)
-      setup.input[i].joy.ylower = setup.input[i].joy.ymiddle + distance;
-  }
-}
-
-int Joystick(int player_nr)
-{
-  int joystick_fd = joystick.fd[player_nr];
+  int joystick_nr = joystick.nr[player_nr];
   int js_x, js_y;
   boolean js_b1, js_b2;
   int left, right, up, down;
   int result = JOY_NO_ACTION;
 
+  if (use_as_joystick_nr)
+    joystick_nr = player_nr;
+
   if (joystick.status != JOYSTICK_ACTIVATED)
     return JOY_NO_ACTION;
 
-  if (joystick_fd < 0 || !setup.input[player_nr].use_joystick)
+  if (joystick_nr < 0)
     return JOY_NO_ACTION;
 
-  if (!ReadJoystick(joystick_fd, &js_x, &js_y, &js_b1, &js_b2))
+  if (!ReadJoystick(joystick_nr, &js_x, &js_y, &js_b1, &js_b2))
   {
-    Error(ERR_WARN, "cannot read joystick device '%s'",
-         setup.input[player_nr].joy.device_name);
+    Warn("cannot read joystick device '%s'",
+        setup.input[player_nr].joy.device_name);
 
     joystick.status = JOYSTICK_NOT_AVAILABLE;
+
     return JOY_NO_ACTION;
   }
 
@@ -295,10 +161,15 @@ int Joystick(int player_nr)
   return result;
 }
 
-int JoystickButton(int player_nr)
+int Joystick(int player_nr)
+{
+  return JoystickExt(player_nr, FALSE);
+}
+
+static int JoystickButtonExt(int player_nr, boolean use_as_joystick_nr)
 {
   static int last_joy_button[MAX_PLAYERS] = { 0, 0, 0, 0 };
-  int joy_button = (Joystick(player_nr) & JOY_BUTTON);
+  int joy_button = (JoystickExt(player_nr, use_as_joystick_nr) & JOY_BUTTON);
   int result;
 
   if (joy_button)
@@ -320,49 +191,33 @@ int JoystickButton(int player_nr)
   return result;
 }
 
-int AnyJoystick()
+int JoystickButton(int player_nr)
+{
+  return JoystickButtonExt(player_nr, FALSE);
+}
+
+int AnyJoystick(void)
 {
   int i;
   int result = 0;
 
   for (i = 0; i < MAX_PLAYERS; i++)
-    result |= Joystick(i);
+    result |= JoystickExt(i, TRUE);
 
   return result;
 }
 
-int AnyJoystickButton()
+int AnyJoystickButton(void)
 {
   int i;
   int result = JOY_BUTTON_NOT_PRESSED;
 
   for (i = 0; i < MAX_PLAYERS; i++)
   {
-    result = JoystickButton(i);
+    result = JoystickButtonExt(i, TRUE);
     if (result != JOY_BUTTON_NOT_PRESSED)
       break;
   }
 
   return result;
 }
-
-void DeactivateJoystick()
-{
-  /* Temporarily deactivate joystick. This is needed for calibration
-     screens, where the player has to select a joystick device that
-     should be calibrated. If there is a totally uncalibrated joystick
-     active, it may be impossible (due to messed up input from joystick)
-     to select the joystick device to calibrate even when trying to use
-     the mouse or keyboard to select the device. */
-
-  if (joystick.status & JOYSTICK_AVAILABLE)
-    joystick.status &= ~JOYSTICK_ACTIVE;
-}
-
-void ActivateJoystick()
-{
-  /* reactivate temporarily deactivated joystick */
-
-  if (joystick.status & JOYSTICK_AVAILABLE)
-    joystick.status |= JOYSTICK_ACTIVE;
-}