From aa6a89fa41dc0014b12fa87eca2c2382782a4c9d Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Mon, 12 Apr 2004 21:48:36 +0200
Subject: [PATCH] rnd-20040412-1-src

---
 src/conftime.h |  2 +-
 src/editor.c   |  5 +++++
 src/game.c     | 43 ++++++++++++++++++++++++++++++++++++++++++-
 src/main.h     |  3 ++-
 src/tools.c    |  4 ++--
 5 files changed, 52 insertions(+), 5 deletions(-)

diff --git a/src/conftime.h b/src/conftime.h
index e9b0ec9a..ac82660f 100644
--- a/src/conftime.h
+++ b/src/conftime.h
@@ -1 +1 @@
-#define COMPILE_DATE_STRING "[2004-04-11 03:36]"
+#define COMPILE_DATE_STRING "[2004-04-12 20:40]"
diff --git a/src/editor.c b/src/editor.c
index 665fef5e..f499cf11 100644
--- a/src/editor.c
+++ b/src/editor.c
@@ -1351,6 +1351,9 @@ static struct ValueTextInfo options_change_direct_action[] =
   { CE_HIT_BY_SOMETHING,	"hit by something"		},
 #else
   { CE_HITTING_SOMETHING,	"collision"			},
+#endif
+#if 1
+  { CE_BLOCKED,			"blocked"			},
 #endif
   { CE_IMPACT,			"impact (on something)"		},
   { CE_SMASHED,			"smashed (from above)"		},
@@ -5875,6 +5878,7 @@ static void CopyCustomElementPropertiesToEditor(int element)
      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
+     HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
      custom_element_change.direct_action);
@@ -6041,6 +6045,7 @@ static void CopyCustomElementPropertiesToGame(int element)
   custom_element_change_events[CE_SWITCHED] = FALSE;
   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
+  custom_element_change_events[CE_BLOCKED] = FALSE;
   custom_element_change_events[CE_IMPACT] = FALSE;
   custom_element_change_events[CE_SMASHED] = FALSE;
   custom_element_change_events[custom_element_change.direct_action] =
diff --git a/src/game.c b/src/game.c
index 59ced416..da15ed43 100644
--- a/src/game.c
+++ b/src/game.c
@@ -5097,6 +5097,8 @@ void StartMoving(int x, int y)
       WasJustFalling[x][y] = 0;
 #endif
 
+      CheckCollision[x][y] = 0;
+
       Impact(x, y);
     }
     else if (IS_FREE(x, y + 1) && element == EL_SPRING && level.use_spring_bug)
@@ -5211,11 +5213,24 @@ void StartMoving(int x, int y)
   }
 
   /* not "else if" because of elements that can fall and move (EL_SPRING) */
+#if 0
+  if (CAN_MOVE(element) && !started_moving && MovDir[x][y] != MV_NO_MOVING)
+#else
   if (CAN_MOVE(element) && !started_moving)
+#endif
   {
     int move_pattern = element_info[element].move_pattern;
     int newx, newy;
 
+#if DEBUG
+    if (MovDir[x][y] == MV_NO_MOVING)
+    {
+      printf("StartMoving(): %d,%d: element %d ['%s'] not moving\n",
+	     x, y, element, element_info[element].token_name);
+      printf("StartMoving(): This should never happen!\n");
+    }
+#endif
+
     Moving2Blocked(x, y, &newx, &newy);
 
 #if 1
@@ -5254,6 +5269,8 @@ void StartMoving(int x, int y)
       WasJustMoving[x][y] = 0;
 #endif
 
+      CheckCollision[x][y] = 0;
+
       TestIfElementHitsCustomElement(x, y, MovDir[x][y]);
 
 #if 0
@@ -5808,6 +5825,25 @@ void StartMoving(int x, int y)
 
       TurnRound(x, y);
 
+      if (move_pattern & MV_ANY_DIRECTION &&
+	  move_pattern == MovDir[x][y])
+      {
+	int blocking_element =
+	  (IN_LEV_FIELD(newx, newy) ? Feld[newx][newy] : BorderElement);
+
+#if 0
+	printf("::: '%s' is blocked by '%s'! [%d,%d -> %d,%d]\n",
+	       element_info[element].token_name,
+	       element_info[blocking_element].token_name,
+	       x, y, newx, newy);
+#endif
+
+	CheckElementChangeBySide(x, y, element, blocking_element, CE_BLOCKED,
+				 MovDir[x][y]);
+
+	element = Feld[x][y];	/* element might have changed */
+      }
+
 #if 1
       if (GFX_ELEMENT(element) != EL_SAND)     /* !!! FIX THIS (crumble) !!! */
 	DrawLevelElementAnimation(x, y, element);
@@ -6080,7 +6116,12 @@ void ContinueMoving(int x, int y)
   /* prevent elements on conveyor belt from moving on in last direction */
   if (pushed_by_conveyor && CAN_FALL(element) &&
       direction & MV_HORIZONTAL)
-    MovDir[newx][newy] = 0;
+  {
+    if (CAN_MOVE(element))
+      InitMovDir(newx, newy);
+    else
+      MovDir[newx][newy] = 0;
+  }
 #endif
 
   if (!pushed_by_player)
diff --git a/src/main.h b/src/main.h
index 0690bafe..e89d1fee 100644
--- a/src/main.h
+++ b/src/main.h
@@ -197,8 +197,9 @@
 #define CE_HIT_BY_SOMETHING	27
 #define CE_OTHER_IS_HITTING	28
 #define CE_OTHER_GETS_HIT	29
+#define CE_BLOCKED		30
 
-#define NUM_CHANGE_EVENTS	30
+#define NUM_CHANGE_EVENTS	31
 
 #define CE_BITMASK_DEFAULT	0
 
diff --git a/src/tools.c b/src/tools.c
index 616cf6e8..39af85ee 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -302,10 +302,10 @@ void BackToFront()
   if (redraw_mask & REDRAW_TILES)
   {
     for (x = 0; x < SCR_FIELDX; x++)
-      for (y =0 ; y < SCR_FIELDY; y++)
+      for (y = 0 ; y < SCR_FIELDY; y++)
 	if (redraw[redraw_x1 + x][redraw_y1 + y])
 	  BlitBitmap(buffer, window,
-		     FX + x * TILEX, FX + y * TILEY, TILEX, TILEY,
+		     FX + x * TILEX, FY + y * TILEY, TILEX, TILEY,
 		     SX + x * TILEX, SY + y * TILEY);
   }
 
-- 
2.34.1