improved synchronization of main game loop

[rocksndiamonds.git] / src / events.c

diff --git a/src/events.c b/src/events.c
index d599dde4ba1ee695dcd450730cb23da75074bdef..952f8995f602cdec1a475dd9c4fd76211138d907 100644 (file)
--- a/src/events.c
+++ b/src/events.c
@@ -19,6 +19,7 @@
 #include "editor.h"
 #include "files.h"
 #include "tape.h"
+#include "cartoons.h"
 #include "network.h"
 
 
@@ -66,7 +67,7 @@ static int FilterEventsExt(const Event *event)
 
   /* do no reset mouse cursor before all pending events have been processed */
   if (gfx.cursor_mode == cursor_mode_last &&
-      ((effectiveGameStatus() == GAME_MODE_TITLE &&
+      ((game_status == GAME_MODE_TITLE &&
        gfx.cursor_mode == CURSOR_NONE) ||
        (game_status == GAME_MODE_PLAYING &&
        gfx.cursor_mode == CURSOR_PLAYFIELD)))
@@ -153,6 +154,9 @@ boolean NextValidEvent(Event *event)
 
 void EventLoop(void)
 {
+  static unsigned int sync_frame_delay = 0;
+  unsigned int sync_frame_delay_value = GAME_FRAME_DELAY;
+
   while (1)
   {
     if (PendingEvent())                /* got event */
@@ -208,7 +212,7 @@ void EventLoop(void)
     }
     else
     {
-      if (effectiveGameStatus() == GAME_MODE_TITLE)
+      if (game_status == GAME_MODE_TITLE)
       {
        /* when showing title screens, hide mouse pointer (if not moved) */
 
@@ -218,7 +222,8 @@ void EventLoop(void)
          SetMouseCursor(CURSOR_NONE);
        }
       }
-      else if (game_status == GAME_MODE_PLAYING && !tape.pausing)
+      else if (game_status == GAME_MODE_PLAYING && (!tape.pausing ||
+                                                   tape.single_step))
       {
        /* when playing, display a special mouse pointer inside the playfield */
 
@@ -245,18 +250,14 @@ void EventLoop(void)
        has its own synchronization and is CPU friendly, too */
 
     if (game_status == GAME_MODE_PLAYING)
-    {
       HandleGameActions();
-    }
-    else
-    {
-      if (!PendingEvent())     /* delay only if no pending events */
-       Delay(10);
-    }
 
     /* refresh window contents from drawing buffer, if needed */
     BackToFront();
 
+    if (game_status != GAME_MODE_PLAYING)
+      WaitUntilDelayReached(&sync_frame_delay, sync_frame_delay_value);
+
     if (game_status == GAME_MODE_QUIT)
       return;
   }
@@ -407,9 +408,6 @@ void HandleButtonEvent(ButtonEvent *event)
 
 void HandleMotionEvent(MotionEvent *event)
 {
-  if (!PointerInWindow(window))
-    return;    /* window and pointer are on different screens */
-
   if (button_status == MB_RELEASED && game_status != GAME_MODE_EDITOR)
     return;
 
@@ -932,12 +930,14 @@ void HandleWindowManagerEvent(Event *event)
 void HandleButton(int mx, int my, int button, int button_nr)
 {
   static int old_mx = 0, old_my = 0;
+  boolean button_hold = FALSE;
 
   if (button < 0)
   {
     mx = old_mx;
     my = old_my;
     button = -button;
+    button_hold = TRUE;
   }
   else
   {
@@ -946,6 +946,7 @@ void HandleButton(int mx, int my, int button, int button_nr)
   }
 
 #if defined(PLATFORM_ANDROID)
+  // !!! for now, do not handle gadgets when playing -- maybe fix this !!!
   if (game_status != GAME_MODE_PLAYING &&
       HandleGadgets(mx, my, button))
   {
@@ -960,6 +961,9 @@ void HandleButton(int mx, int my, int button, int button_nr)
   }
 #endif
 
+  if (button_hold && game_status == GAME_MODE_PLAYING && tape.pausing)
+    return;
+
   /* do not use scroll wheel button events for anything other than gadgets */
   if (IS_WHEEL_BUTTON(button_nr))
     return;
@@ -1548,28 +1552,6 @@ void HandleKey(Key key, int key_status)
          }
          break;
 
-#if 0
-       case KSYM_s:
-         if (!global.fps_slowdown)
-         {
-           global.fps_slowdown = TRUE;
-           global.fps_slowdown_factor = 2;
-           printf("fps slowdown enabled -- display only every 2nd frame\n");
-         }
-         else if (global.fps_slowdown_factor == 2)
-         {
-           global.fps_slowdown_factor = 4;
-           printf("fps slowdown enabled -- display only every 4th frame\n");
-         }
-         else
-         {
-           global.fps_slowdown = FALSE;
-           global.fps_slowdown_factor = 1;
-           printf("fps slowdown disabled\n");
-         }
-         break;
-#endif
-
        case KSYM_v:
          printf("::: currently using game engine version %d\n",
                 game.engine_version);
@@ -1595,7 +1577,8 @@ void HandleKey(Key key, int key_status)
 
 void HandleNoEvent()
 {
-  if (button_status && game_status != GAME_MODE_PLAYING)
+  // if (button_status && game_status != GAME_MODE_PLAYING)
+  if (button_status && (game_status != GAME_MODE_PLAYING || tape.pausing))
   {
     HandleButton(0, 0, -button_status, button_status);
   }