From: Holger Schemel <info@artsoft.org>
Date: Mon, 7 Aug 2006 22:05:10 +0000 (+0200)
Subject: rnd-20060808-1-src
X-Git-Tag: 3.2.1^2~18
X-Git-Url: https://git.artsoft.org/?p=rocksndiamonds.git;a=commitdiff_plain;h=077a063efbdea9755f17e7442115221aabe71503

rnd-20060808-1-src
* fixed bug with bumpy scrolling with EM engine in double player mode
---

diff --git a/ChangeLog b/ChangeLog
index 43eb2e24..2df768e4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2006-08-07
+	* fixed bug with bumpy scrolling with EM engine in double player mode
+
 2006-08-05
 	* added compatibility code to fix "Snake Bite" style levels that were
 	  broken due to a bugfix regarding EL_SOKOBAN_FIELD_PLAYER in 3.2.0
diff --git a/src/conftime.h b/src/conftime.h
index 2da5f838..60eec918 100644
--- a/src/conftime.h
+++ b/src/conftime.h
@@ -1 +1 @@
-#define COMPILE_DATE_STRING "[2006-08-05 23:30]"
+#define COMPILE_DATE_STRING "[2006-08-08 00:01]"
diff --git a/src/game_em/graphics.c b/src/game_em/graphics.c
index deee45a3..9aff1644 100644
--- a/src/game_em/graphics.c
+++ b/src/game_em/graphics.c
@@ -912,7 +912,36 @@ void RedrawPlayfield_EM(boolean force_redraw)
 			    sy - offset_y > screen_y ? sy - offset_y :
 			    screen_y);
 
+#if 0
+  printf("::: (%d, %d) => (%d, %d) [(%d, %d), (%d, %d)] [%d, %d] [%d / %d]\n",
+	 screen_x_old, screen_y_old,
+	 screen_x, screen_y,
+	 ply[max_center_distance_player_nr].oldx,
+	 ply[max_center_distance_player_nr].x,
+	 ply[max_center_distance_player_nr].oldy,
+	 ply[max_center_distance_player_nr].y,
+	 sx, sy,
+	 ABS(screen_x - screen_x_old),
+	 ABS(screen_y - screen_y_old));
+#endif
+
+#if 1
+
 #if 1
+  /* prevent scrolling further than double player step size when scrolling */
+  if (ABS(screen_x - screen_x_old) > 2 * stepsize)
+  {
+    int dx = SIGN(screen_x - screen_x_old);
+
+    screen_x = screen_x_old + dx * 2 * stepsize;
+  }
+  if (ABS(screen_y - screen_y_old) > 2 * stepsize)
+  {
+    int dy = SIGN(screen_y - screen_y_old);
+
+    screen_y = screen_y_old + dy * 2 * stepsize;
+  }
+#else
   /* prevent scrolling further than double player step size when scrolling */
   if (ABS(screen_x - screen_x_old) > 2 * stepsize ||
       ABS(screen_y - screen_y_old) > 2 * stepsize)
@@ -923,6 +952,8 @@ void RedrawPlayfield_EM(boolean force_redraw)
     screen_x = screen_x_old + dx * 2 * stepsize;
     screen_y = screen_y_old + dy * 2 * stepsize;
   }
+#endif
+
 #else
   /* prevent scrolling further than player step size when scrolling */
   if (ABS(screen_x - screen_x_old) > stepsize ||