added setup option to force scroll delay when using the EM engine

The default value is not to force the configured scroll delay value
when playing levels with the EM engine, but always center the screen.

diff --git a/src/files.c b/src/files.c
index 14f9f175cd7ab6be38ee36b66432b63b85f5b2c3..d4751ae52b8a4cfb6622a499e9f4f5d3e302be84 100644 (file)
--- a/src/files.c
+++ b/src/files.c
@@ -8367,6 +8367,10 @@ static struct TokenInfo global_setup_tokens[] =
     TYPE_SWITCH,
     &setup.scroll_delay,                       "scroll_delay"
   },
+  {
+    TYPE_SWITCH,
+    &setup.forced_scroll_delay,                        "forced_scroll_delay"
+  },
   {
     TYPE_INTEGER,
     &setup.scroll_delay_value,                 "scroll_delay_value"
@@ -9112,6 +9116,7 @@ static void setSetupInfoToDefaults(struct SetupInfo *si)
   si->sound_simple = TRUE;
   si->toons = TRUE;
   si->scroll_delay = TRUE;
+  si->forced_scroll_delay = FALSE;
   si->scroll_delay_value = STD_SCROLL_DELAY;
   si->engine_snapshot_mode = getStringCopy(STR_SNAPSHOT_MODE_DEFAULT);
   si->engine_snapshot_memory = SNAPSHOT_MEMORY_DEFAULT;

diff --git a/src/game.c b/src/game.c
index 23650858360e773404ce8b050b1bbffba1234266..862c5083d0c2d974b13eeadf6754b9fcfcf162c4 100644 (file)
--- a/src/game.c
+++ b/src/game.c
@@ -3255,6 +3255,8 @@ static void InitGameEngine(void)
   // ---------- initialize graphics engine ------------------------------------
   game.scroll_delay_value =
     (game.forced_scroll_delay_value != -1 ? game.forced_scroll_delay_value :
+     level.game_engine_type == GAME_ENGINE_TYPE_EM &&
+     !setup.forced_scroll_delay           ? 0 :
      setup.scroll_delay                   ? setup.scroll_delay_value       : 0);
   game.scroll_delay_value =
     MIN(MAX(MIN_SCROLL_DELAY, game.scroll_delay_value), MAX_SCROLL_DELAY);

diff --git a/src/libgame/system.h b/src/libgame/system.h
index 8b7de610cc551a6f61802e3deaaaa4ca1f1d9752..d9c1b002be000dcaaefd3ce61c451eaebc35d66c 100644 (file)
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -1359,6 +1359,7 @@ struct SetupInfo
   boolean sound_simple;
   boolean toons;
   boolean scroll_delay;
+  boolean forced_scroll_delay;
   int scroll_delay_value;
   char *engine_snapshot_mode;
   int engine_snapshot_memory;

diff --git a/src/screens.c b/src/screens.c
index b4f2e5fc8d46003189d0d2abf4c0435be3226116..b8c34820eecdb12837868ce57088e204a65c3222 100644 (file)
--- a/src/screens.c
+++ b/src/screens.c
@@ -6255,6 +6255,7 @@ static struct TokenInfo setup_info_game[] =
   { TYPE_ENTER_LIST,   execSetupChooseScrollDelay, "Scroll Delay:"     },
   { TYPE_STRING,       &scroll_delay_text,     ""                      },
 #endif
+  { TYPE_SWITCH,       &setup.forced_scroll_delay,"Scroll Delay in EM engine:" },
   { TYPE_ENTER_LIST, execSetupChooseSnapshotMode,"Game Engine Snapshot Mode:" },
   { TYPE_STRING,       &snapshot_mode_text,    ""                      },
   { TYPE_SWITCH,       &setup.show_snapshot_buttons,"Show Snapshot Buttons:" },