rnd-20000806-1-src

[rocksndiamonds.git] / src / joystick.c

diff --git a/src/joystick.c b/src/joystick.c
index 3aeb8e9d6163bc6b7dd3ae72e75d3d9c74a06185..c069289a6beea6b674f3a6b4646104b0b46a800a 100644 (file)
--- a/src/joystick.c
+++ b/src/joystick.c
@@ -18,6 +18,195 @@
 #include "joystick.h"
 #include "misc.h"
 
+#ifndef MSDOS
+static int JoystickPosition(int middle, int margin, int actual)
+{
+  long range, pos;
+  int percentage;
+
+  if (margin < middle && actual > middle)
+    return 0;
+  if (margin > middle && actual < middle)
+    return 0;
+
+  range = ABS(margin - middle);
+  pos = ABS(actual - middle);
+  percentage = (int)(pos * 100 / range);
+
+  if (percentage > 100)
+    percentage = 100;
+
+  return percentage;
+}
+#endif
+
+#ifdef USE_SDL_LIBRARY
+
+static SDL_Joystick *sdl_joystick[MAX_PLAYERS] = { NULL, NULL, NULL, NULL };
+static int sdl_js_axis[MAX_PLAYERS][2]   = { {0, 0}, {0, 0}, {0, 0}, {0, 0} };
+static int sdl_js_button[MAX_PLAYERS][2] = { {0, 0}, {0, 0}, {0, 0}, {0, 0} };
+
+SDL_Joystick *Get_SDL_Joystick(int nr)
+{
+  return sdl_joystick[nr];
+}
+
+boolean Open_SDL_Joystick(int nr)
+{
+  if (nr < 0 || nr > MAX_PLAYERS)
+    return FALSE;
+
+  return ((sdl_joystick[nr] = SDL_JoystickOpen(nr)) == NULL ? FALSE : TRUE);
+}
+
+void Close_SDL_Joystick(int nr)
+{
+  if (nr < 0 || nr > MAX_PLAYERS)
+    return;
+
+  SDL_JoystickClose(sdl_joystick[nr]);
+}
+
+boolean Check_SDL_JoystickOpened(int nr)
+{
+  if (nr < 0 || nr > MAX_PLAYERS)
+    return FALSE;
+
+  return (SDL_JoystickOpened(nr) ? TRUE : FALSE);
+}
+
+void HandleJoystickEvent(Event *event)
+{
+  switch(event->type)
+  {
+    case SDL_JOYAXISMOTION:
+      if (event->jaxis.axis < 2)
+      {
+       sdl_js_axis[event->jaxis.which][event->jaxis.axis]= event->jaxis.value;
+
+#if 0
+       printf("js_%d %s-axis: %d\n",
+              event->jaxis.which,
+              (event->jaxis.axis == 0 ? "x" : "y"),
+              event->jaxis.value);
+#endif
+      }
+      break;
+
+    case SDL_JOYBUTTONDOWN:
+      if (event->jbutton.button < 2)
+      {
+       sdl_js_button[event->jbutton.which][event->jbutton.button] = TRUE;
+
+#if 0
+        printf("js_%d button %d: pressed\n",
+              event->jbutton.which,
+              event->jbutton.button);
+#endif
+      }
+      break;
+
+    case SDL_JOYBUTTONUP:
+      if (event->jbutton.button < 2)
+      {
+       sdl_js_button[event->jbutton.which][event->jbutton.button] = FALSE;
+
+#if 0
+        printf("js_%d button %d: released\n",
+              event->jbutton.which,
+              event->jbutton.button);
+#endif
+      }
+      break;
+
+    default:
+      break;
+  }
+}
+
+int Get_SDL_Joystick_Axis(int nr, int axis)
+{
+  if (nr < 0 || nr > MAX_PLAYERS)
+    return 0;
+
+  if (axis < 0 || axis > 1)
+    return 0;
+
+  return sdl_js_axis[nr][axis];
+}
+
+void CheckJoystickData()
+{
+}
+
+int Joystick(int player_nr)
+{
+  int joystick_nr = stored_player[player_nr].joystick_fd;
+  int js_x,js_y, js_b1,js_b2;
+  int left, right, up, down;
+  int result = 0;
+
+  if (joystick_status == JOYSTICK_OFF)
+    return 0;
+
+  if (game_status == SETUPINPUT)
+    return 0;
+
+  if (!setup.input[player_nr].use_joystick ||
+      !Check_SDL_JoystickOpened(joystick_nr))
+    return 0;
+
+  js_x  = sdl_js_axis[joystick_nr][0];
+  js_y  = sdl_js_axis[joystick_nr][1];
+
+  js_b1 = sdl_js_button[joystick_nr][0];
+  js_b2 = sdl_js_button[joystick_nr][1];
+
+
+
+#if 0
+  printf("JOYSTICK %d: js_x == %d, js_y == %d, js_b1 == %d, js_b2 == %d\n",
+        joystick_nr, js_x, js_y, js_b1, js_b2);
+#endif
+
+
+
+  left  = JoystickPosition(setup.input[player_nr].joy.xmiddle,
+                          setup.input[player_nr].joy.xleft,  js_x);
+  right = JoystickPosition(setup.input[player_nr].joy.xmiddle,
+                          setup.input[player_nr].joy.xright, js_x);
+  up    = JoystickPosition(setup.input[player_nr].joy.ymiddle,
+                          setup.input[player_nr].joy.yupper, js_y);
+  down  = JoystickPosition(setup.input[player_nr].joy.ymiddle,
+                          setup.input[player_nr].joy.ylower, js_y);
+
+  if (left > JOYSTICK_PERCENT)
+    result |= JOY_LEFT;
+  else if (right > JOYSTICK_PERCENT)
+    result |= JOY_RIGHT;
+  if (up > JOYSTICK_PERCENT)
+    result |= JOY_UP;
+  else if (down > JOYSTICK_PERCENT)
+    result |= JOY_DOWN;
+
+  if (js_b1)
+    result |= JOY_BUTTON_1;
+  if (js_b2)
+    result |= JOY_BUTTON_2;
+
+
+
+#if 0
+  printf("result == 0x%08x\n", result);
+#endif
+
+
+
+  return result;
+}
+
+#else /* !USE_SDL_LIBRARY */
+
 void CheckJoystickData()
 {
   int i;
@@ -42,28 +231,6 @@ void CheckJoystickData()
   }
 }
 
-#ifndef MSDOS
-static int JoystickPosition(int middle, int margin, int actual)
-{
-  long range, pos;
-  int percentage;
-
-  if (margin < middle && actual > middle)
-    return 0;
-  if (margin > middle && actual < middle)
-    return 0;
-
-  range = ABS(margin - middle);
-  pos = ABS(actual - middle);
-  percentage = (int)(pos * 100 / range);
-
-  if (percentage > 100)
-    percentage = 100;
-
-  return percentage;
-}
-#endif
-
 #ifndef MSDOS
 int Joystick(int player_nr)
 {
@@ -196,6 +363,8 @@ int Joystick(int player_nr)
 }
 #endif /* MSDOS */
 
+#endif /* !USE_SDL_LIBRARY */
+
 int JoystickButton(int player_nr)
 {
   static int last_joy_button[MAX_PLAYERS] = { 0, 0, 0, 0 };