updated contact info in source file headers
[rocksndiamonds.git] / src / events.c
index 2593dd2f5acfcf3026be1d655ee35c54de11ff13..709ad4535c132ea4343f0c19abc630f030f60f4d 100644 (file)
@@ -1,15 +1,13 @@
-/***********************************************************
-* Rocks'n'Diamonds -- McDuffin Strikes Back!               *
-*----------------------------------------------------------*
-* (c) 1995-2006 Artsoft Entertainment                      *
-*               Holger Schemel                             *
-*               Detmolder Strasse 189                      *
-*               33604 Bielefeld                            *
-*               Germany                                    *
-*               e-mail: info@artsoft.org                   *
-*----------------------------------------------------------*
-* events.c                                                 *
-***********************************************************/
+// ============================================================================
+// Rocks'n'Diamonds - McDuffin Strikes Back!
+// ----------------------------------------------------------------------------
+// (c) 1995-2014 by Artsoft Entertainment
+//                         Holger Schemel
+//                 info@artsoft.org
+//                 http://www.artsoft.org/
+// ----------------------------------------------------------------------------
+// events.c
+// ============================================================================
 
 #include "libgame/libgame.h"
 
@@ -175,6 +173,13 @@ void EventLoop(void)
          case EVENT_TEXTINPUT:
            HandleTextEvent((TextEvent *) &event);
            break;
+
+         case SDL_APP_WILLENTERBACKGROUND:
+         case SDL_APP_DIDENTERBACKGROUND:
+         case SDL_APP_WILLENTERFOREGROUND:
+         case SDL_APP_DIDENTERFOREGROUND:
+           HandlePauseResumeEvent((PauseResumeEvent *) &event);
+           break;
 #endif
 
          case EVENT_KEYPRESS:
@@ -363,10 +368,6 @@ void SleepWhileUnmapped()
 
 void HandleExposeEvent(ExposeEvent *event)
 {
-#if !defined(TARGET_SDL)
-  RedrawPlayfield(FALSE, event->x, event->y, event->width, event->height);
-  FlushDisplay();
-#endif
 }
 
 void HandleButtonEvent(ButtonEvent *event)
@@ -458,10 +459,6 @@ void HandleWindowEvent(WindowEvent *event)
     int new_window_width  = event->data1;
     int new_window_height = event->data2;
 
-    printf("::: RESIZED from %d, %d to %d, %d\n",
-          video.window_width, video.window_height,
-          new_window_width, new_window_height);
-
     // if window size has changed after resizing, calculate new scaling factor
     if (new_window_width  != video.window_width ||
        new_window_height != video.window_height)
@@ -469,6 +466,12 @@ void HandleWindowEvent(WindowEvent *event)
       int new_xpercent = (100 * new_window_width  / video.width);
       int new_ypercent = (100 * new_window_height / video.height);
 
+#if 0
+      printf("::: RESIZED from %d, %d to %d, %d\n",
+            video.window_width, video.window_height,
+            new_window_width, new_window_height);
+#endif
+
       setup.window_scaling_percent = video.window_scaling_percent =
        MIN(MAX(MIN_WINDOW_SCALING_PERCENT, MIN(new_xpercent, new_ypercent)),
            MAX_WINDOW_SCALING_PERCENT);
@@ -476,11 +479,15 @@ void HandleWindowEvent(WindowEvent *event)
       video.window_width  = new_window_width;
       video.window_height = new_window_height;
 
+#if 0
       printf("::: setup.window_scaling_percent set to %d\n",
             setup.window_scaling_percent);
+#endif
 
       if (game_status == GAME_MODE_SETUP)
        RedrawSetupScreenAfterFullscreenToggle();
+
+      SetWindowTitle();
     }
 #else
     // prevent slightly wrong scaling factor due to rounding differences
@@ -514,6 +521,345 @@ void HandleWindowEvent(WindowEvent *event)
   }
 }
 
+#if 1
+
+#define NUM_TOUCH_FINGERS              3
+
+static struct
+{
+  boolean touched;
+  SDL_FingerID finger_id;
+  int counter;
+  Key key;
+} touch_info[NUM_TOUCH_FINGERS];
+
+void HandleFingerEvent(FingerEvent *event)
+{
+  static Key motion_key_x = KSYM_UNDEFINED;
+  static Key motion_key_y = KSYM_UNDEFINED;
+  static Key button_key = KSYM_UNDEFINED;
+  static float motion_x1, motion_y1;
+  static float button_x1, button_y1;
+  static SDL_FingerID motion_id = -1;
+  static SDL_FingerID button_id = -1;
+  int move_trigger_distance_percent = 2;   // percent of touchpad width/height
+  int drop_trigger_distance_percent = 5;   // percent of touchpad width/height
+  float move_trigger_distance = (float)move_trigger_distance_percent / 100;
+  float drop_trigger_distance = (float)drop_trigger_distance_percent / 100;
+  float event_x = event->x;
+  float event_y = event->y;
+
+#if 1
+#if DEBUG_EVENTS
+  Error(ERR_DEBUG, "FINGER EVENT: finger was %s, touch ID %lld, finger ID %lld, x/y %f/%f, dx/dy %f/%f, pressure %f",
+       event->type == EVENT_FINGERPRESS ? "pressed" :
+       event->type == EVENT_FINGERRELEASE ? "released" : "moved",
+       event->touchId,
+       event->fingerId,
+       event->x, event->y,
+       event->dx, event->dy,
+       event->pressure);
+#endif
+#endif
+
+  if (game_status != GAME_MODE_PLAYING)
+    return;
+
+#if 1
+  if (strEqual(setup.touch.control_type, TOUCH_CONTROL_VIRTUAL_BUTTONS))
+#else
+  boolean use_virtual_button_control = FALSE;
+
+  if (use_virtual_button_control)
+#endif
+  {
+    int key_status = (event->type == EVENT_FINGERRELEASE ? KEY_RELEASED :
+                     KEY_PRESSED);
+#if 1
+    Key key = (event->x < 1.0 / 3.0 ?
+              (event->y < 1.0 / 2.0 ? setup.input[0].key.snap :
+               setup.input[0].key.drop) :
+              event->x > 2.0 / 3.0 ?
+              (event->y < 1.0 / 3.0 ? setup.input[0].key.up :
+               event->y > 2.0 / 3.0 ? setup.input[0].key.down :
+               event->x < 5.0 / 6.0 ? setup.input[0].key.left :
+               setup.input[0].key.right) :
+              KSYM_UNDEFINED);
+#if 0
+    char *key_name = (key == setup.input[0].key.snap  ? "SNAP" :
+                     key == setup.input[0].key.drop  ? "DROP" :
+                     key == setup.input[0].key.up    ? "UP" :
+                     key == setup.input[0].key.down  ? "DOWN" :
+                     key == setup.input[0].key.left  ? "LEFT" :
+                     key == setup.input[0].key.right ? "RIGHT" : "(unknown)");
+#endif
+    char *key_status_name = (key_status == KEY_RELEASED ? "KEY_RELEASED" :
+                            "KEY_PRESSED");
+#else
+    Key key = (event->y < 1.0 / 3.0 ? setup.input[0].key.up :
+              event->y > 2.0 / 3.0 ? setup.input[0].key.down :
+              event->x < 1.0 / 3.0 ? setup.input[0].key.left :
+              event->x > 2.0 / 3.0 ? setup.input[0].key.right :
+              setup.input[0].key.snap);
+#endif
+    int i;
+
+    Error(ERR_DEBUG, "::: key '%s' was '%s' [fingerId: %lld]",
+         getKeyNameFromKey(key), key_status_name, event->fingerId);
+
+    // check if we already know this touch event's finger id
+    for (i = 0; i < NUM_TOUCH_FINGERS; i++)
+    {
+      if (touch_info[i].touched &&
+         touch_info[i].finger_id == event->fingerId)
+      {
+       // Error(ERR_DEBUG, "MARK 1: %d", i);
+
+       break;
+      }
+    }
+
+    if (i >= NUM_TOUCH_FINGERS)
+    {
+      if (key_status == KEY_PRESSED)
+      {
+       int oldest_pos = 0, oldest_counter = touch_info[0].counter;
+
+       // unknown finger id -- get new, empty slot, if available
+       for (i = 0; i < NUM_TOUCH_FINGERS; i++)
+       {
+         if (touch_info[i].counter < oldest_counter)
+         {
+           oldest_pos = i;
+           oldest_counter = touch_info[i].counter;
+
+           // Error(ERR_DEBUG, "MARK 2: %d", i);
+         }
+
+         if (!touch_info[i].touched)
+         {
+           // Error(ERR_DEBUG, "MARK 3: %d", i);
+
+           break;
+         }
+       }
+
+       if (i >= NUM_TOUCH_FINGERS)
+       {
+         // all slots allocated -- use oldest slot
+         i = oldest_pos;
+
+         // Error(ERR_DEBUG, "MARK 4: %d", i);
+       }
+      }
+      else
+      {
+       // release of previously unknown key (should not happen)
+
+       if (key != KSYM_UNDEFINED)
+       {
+         HandleKey(key, KEY_RELEASED);
+
+         Error(ERR_DEBUG, "=> key == '%s', key_status == '%s' [slot %d] [1]",
+               getKeyNameFromKey(key), "KEY_RELEASED", i);
+       }
+      }
+    }
+
+    if (i < NUM_TOUCH_FINGERS)
+    {
+      if (key_status == KEY_PRESSED)
+      {
+       if (touch_info[i].key != key)
+       {
+         if (touch_info[i].key != KSYM_UNDEFINED)
+         {
+           HandleKey(touch_info[i].key, KEY_RELEASED);
+
+           Error(ERR_DEBUG, "=> key == '%s', key_status == '%s' [slot %d] [2]",
+                 getKeyNameFromKey(touch_info[i].key), "KEY_RELEASED", i);
+         }
+
+         if (key != KSYM_UNDEFINED)
+         {
+           HandleKey(key, KEY_PRESSED);
+
+           Error(ERR_DEBUG, "=> key == '%s', key_status == '%s' [slot %d] [3]",
+                 getKeyNameFromKey(key), "KEY_PRESSED", i);
+         }
+       }
+
+       touch_info[i].touched = TRUE;
+       touch_info[i].finger_id = event->fingerId;
+       touch_info[i].counter = Counter();
+       touch_info[i].key = key;
+      }
+      else
+      {
+       if (touch_info[i].key != KSYM_UNDEFINED)
+       {
+         HandleKey(touch_info[i].key, KEY_RELEASED);
+
+         Error(ERR_DEBUG, "=> key == '%s', key_status == '%s' [slot %d] [4]",
+               getKeyNameFromKey(touch_info[i].key), "KEY_RELEASED", i);
+       }
+
+       touch_info[i].touched = FALSE;
+       touch_info[i].finger_id = 0;
+       touch_info[i].counter = 0;
+       touch_info[i].key = 0;
+      }
+    }
+
+#if 0
+#if 1
+    Error(ERR_DEBUG, "=> key == '%s', key_status == '%s' [slot %d]",
+         key_name, key_status_name, i);
+#else
+    Error(ERR_DEBUG, "=> key == %d, key_status == %d [%d]", key, key_status, i);
+#endif
+#endif
+
+    return;
+  }
+
+  // use touch direction control
+
+  if (event->type == EVENT_FINGERPRESS)
+  {
+    if (event_x > 1.0 / 3.0)
+    {
+      // motion area
+
+      motion_id = event->fingerId;
+
+      motion_x1 = event_x;
+      motion_y1 = event_y;
+
+      motion_key_x = KSYM_UNDEFINED;
+      motion_key_y = KSYM_UNDEFINED;
+
+      Error(ERR_DEBUG, "---------- MOVE STARTED (WAIT) ----------");
+    }
+    else
+    {
+      // button area
+
+      button_id = event->fingerId;
+
+      button_x1 = event_x;
+      button_y1 = event_y;
+
+      button_key = setup.input[0].key.snap;
+
+      HandleKey(button_key, KEY_PRESSED);
+
+      Error(ERR_DEBUG, "---------- SNAP STARTED ----------");
+    }
+  }
+  else if (event->type == EVENT_FINGERRELEASE)
+  {
+    if (event->fingerId == motion_id)
+    {
+      motion_id = -1;
+
+      if (motion_key_x != KSYM_UNDEFINED)
+       HandleKey(motion_key_x, KEY_RELEASED);
+      if (motion_key_y != KSYM_UNDEFINED)
+       HandleKey(motion_key_y, KEY_RELEASED);
+
+      motion_key_x = KSYM_UNDEFINED;
+      motion_key_y = KSYM_UNDEFINED;
+
+      Error(ERR_DEBUG, "---------- MOVE STOPPED ----------");
+    }
+    else if (event->fingerId == button_id)
+    {
+      button_id = -1;
+
+      if (button_key != KSYM_UNDEFINED)
+       HandleKey(button_key, KEY_RELEASED);
+
+      button_key = KSYM_UNDEFINED;
+
+      Error(ERR_DEBUG, "---------- SNAP STOPPED ----------");
+    }
+  }
+  else if (event->type == EVENT_FINGERMOTION)
+  {
+    if (event->fingerId == motion_id)
+    {
+      float distance_x = ABS(event_x - motion_x1);
+      float distance_y = ABS(event_y - motion_y1);
+      Key new_motion_key_x = (event_x < motion_x1 ? setup.input[0].key.left :
+                             event_x > motion_x1 ? setup.input[0].key.right :
+                             KSYM_UNDEFINED);
+      Key new_motion_key_y = (event_y < motion_y1 ? setup.input[0].key.up :
+                             event_y > motion_y1 ? setup.input[0].key.down :
+                             KSYM_UNDEFINED);
+
+      if (distance_x < move_trigger_distance / 2 ||
+         distance_x < distance_y)
+       new_motion_key_x = KSYM_UNDEFINED;
+
+      if (distance_y < move_trigger_distance / 2 ||
+         distance_y < distance_x)
+       new_motion_key_y = KSYM_UNDEFINED;
+
+      if (distance_x > move_trigger_distance ||
+         distance_y > move_trigger_distance)
+      {
+       if (new_motion_key_x != motion_key_x)
+       {
+         if (motion_key_x != KSYM_UNDEFINED)
+           HandleKey(motion_key_x, KEY_RELEASED);
+         if (new_motion_key_x != KSYM_UNDEFINED)
+           HandleKey(new_motion_key_x, KEY_PRESSED);
+       }
+
+       if (new_motion_key_y != motion_key_y)
+       {
+         if (motion_key_y != KSYM_UNDEFINED)
+           HandleKey(motion_key_y, KEY_RELEASED);
+         if (new_motion_key_y != KSYM_UNDEFINED)
+           HandleKey(new_motion_key_y, KEY_PRESSED);
+       }
+
+       motion_x1 = event_x;
+       motion_y1 = event_y;
+
+       motion_key_x = new_motion_key_x;
+       motion_key_y = new_motion_key_y;
+
+       Error(ERR_DEBUG, "---------- MOVE STARTED (MOVE) ----------");
+      }
+    }
+    else if (event->fingerId == button_id)
+    {
+      float distance_x = ABS(event_x - button_x1);
+      float distance_y = ABS(event_y - button_y1);
+
+      if (distance_x < drop_trigger_distance / 2 &&
+         distance_y > drop_trigger_distance)
+      {
+       if (button_key == setup.input[0].key.snap)
+         HandleKey(button_key, KEY_RELEASED);
+
+       button_x1 = event_x;
+       button_y1 = event_y;
+
+       button_key = setup.input[0].key.drop;
+
+       HandleKey(button_key, KEY_PRESSED);
+
+       Error(ERR_DEBUG, "---------- DROP STARTED ----------");
+      }
+    }
+  }
+}
+
+#else
+
 void HandleFingerEvent(FingerEvent *event)
 {
 #if 0
@@ -598,6 +944,8 @@ void HandleFingerEvent(FingerEvent *event)
 #endif
 }
 
+#endif
+
 static boolean checkTextInputKeyModState()
 {
   // when playing, only handle raw key events and ignore text input
@@ -633,6 +981,19 @@ void HandleTextEvent(TextEvent *event)
     HandleKey(key, KEY_RELEASED);
   }
 }
+
+void HandlePauseResumeEvent(PauseResumeEvent *event)
+{
+  if (event->type == SDL_APP_WILLENTERBACKGROUND)
+  {
+    Mix_PauseMusic();
+  }
+  else if (event->type == SDL_APP_DIDENTERFOREGROUND)
+  {
+    Mix_ResumeMusic();
+  }
+}
+
 #endif
 
 void HandleKeyEvent(KeyEvent *event)
@@ -752,11 +1113,20 @@ void HandleButton(int mx, int my, int button, int button_nr)
     old_my = my;
   }
 
+#if defined(PLATFORM_ANDROID)
+  if (game_status != GAME_MODE_PLAYING &&
+      HandleGadgets(mx, my, button))
+  {
+    /* do not handle this button event anymore */
+    mx = my = -32;     /* force mouse event to be outside screen tiles */
+  }
+#else
   if (HandleGadgets(mx, my, button))
   {
     /* do not handle this button event anymore */
     mx = my = -32;     /* force mouse event to be outside screen tiles */
   }
+#endif
 
   /* do not use scroll wheel button events for anything other than gadgets */
   if (IS_WHEEL_BUTTON(button_nr))
@@ -806,8 +1176,10 @@ void HandleButton(int mx, int my, int button, int button_nr)
 
     case GAME_MODE_PLAYING:
 #ifdef DEBUG
-      if (button == MB_PRESSED && !motion_status && IN_GFX_SCREEN(mx, my))
-       DumpTile(LEVELX((mx - SX) / TILEX), LEVELY((my - SY) / TILEY));
+      if (button == MB_PRESSED && !motion_status && IN_GFX_FIELD_PLAY(mx, my))
+       DumpTile(LEVELX((mx - SX) / TILESIZE_VAR),
+                LEVELY((my - SY) / TILESIZE_VAR));
+        // DumpTile(LEVELX((mx - SX) / TILEX), LEVELY((my - SY) / TILEY));
 #endif
       break;
 
@@ -897,6 +1269,20 @@ static void HandleKeysSpecial(Key key)
     {
       DumpTape(&tape);
     }
+    else if (is_string_suffix(cheat_input, ":fix-tape") ||
+            is_string_suffix(cheat_input, ":ft"))
+    {
+      /* fix single-player tapes that contain player input for more than one
+        player (due to a bug in 3.3.1.2 and earlier versions), which results
+        in playing levels with more than one player in multi-player mode,
+        even though the tape was originally recorded in single-player mode */
+
+      /* remove player input actions for all players but the first one */
+      for (i = 1; i < MAX_PLAYERS; i++)
+       tape.player_participates[i] = FALSE;
+
+      tape.changed = TRUE;
+    }
     else if (is_string_suffix(cheat_input, ":save-native-level") ||
             is_string_suffix(cheat_input, ":snl"))
     {
@@ -1103,8 +1489,10 @@ void HandleKey(Key key, int key_status)
   if (key_status == KEY_RELEASED)
     return;
 
-  if ((key == KSYM_Return || key == KSYM_KP_Enter) &&
-      (GetKeyModState() & KMOD_Alt) && video.fullscreen_available)
+  if ((key == KSYM_F11 ||
+       ((key == KSYM_Return ||
+        key == KSYM_KP_Enter) && (GetKeyModState() & KMOD_Alt))) &&
+      video.fullscreen_available)
   {
     setup.fullscreen = !setup.fullscreen;
 
@@ -1112,7 +1500,7 @@ void HandleKey(Key key, int key_status)
     printf("::: %d\n", setup.window_scaling_percent);
 #endif
 
-    ToggleFullscreenIfNeeded();
+    ToggleFullscreenOrChangeWindowScalingIfNeeded();
 
     if (game_status == GAME_MODE_SETUP)
       RedrawSetupScreenAfterFullscreenToggle();
@@ -1120,8 +1508,12 @@ void HandleKey(Key key, int key_status)
     return;
   }
 
-  if ((key == KSYM_minus || key == KSYM_plus || key == KSYM_0) &&
-      (GetKeyModState() & KMOD_Control) && video.window_scaling_available &&
+  if ((key == KSYM_minus ||
+       key == KSYM_plus ||
+       key == KSYM_0) &&
+      ((GetKeyModState() & KMOD_Control) ||
+       (GetKeyModState() & KMOD_Alt)) &&
+      video.window_scaling_available &&
       !video.fullscreen_enabled)
   {
     if (key == KSYM_0)
@@ -1135,7 +1527,7 @@ void HandleKey(Key key, int key_status)
     else if (setup.window_scaling_percent > MAX_WINDOW_SCALING_PERCENT)
       setup.window_scaling_percent = MAX_WINDOW_SCALING_PERCENT;
 
-    ToggleFullscreenIfNeeded();
+    ToggleFullscreenOrChangeWindowScalingIfNeeded();
 
     if (game_status == GAME_MODE_SETUP)
       RedrawSetupScreenAfterFullscreenToggle();
@@ -1355,6 +1747,7 @@ void HandleKey(Key key, int key_status)
          }
          break;
 
+#if 0
        case KSYM_s:
          if (!global.fps_slowdown)
          {
@@ -1374,7 +1767,9 @@ void HandleKey(Key key, int key_status)
            printf("fps slowdown disabled\n");
          }
          break;
+#endif
 
+#if 0
        case KSYM_f:
          ScrollStepSize = TILEX / 8;
          printf("ScrollStepSize == %d (1/8)\n", ScrollStepSize);
@@ -1394,6 +1789,7 @@ void HandleKey(Key key, int key_status)
          ScrollStepSize = TILEX;
          printf("ScrollStepSize == %d (1/1)\n", ScrollStepSize);
          break;
+#endif
 
        case KSYM_v:
          printf("::: currently using game engine version %d\n",