small code cleanup

[rocksndiamonds.git] / src / game.c

diff --git a/src/game.c b/src/game.c
index 20157c6d347482e2de7db3b0904b5c9916b10a2f..b843cbe7eba99fdda77cd76442011d9834d84221 100644 (file)
--- a/src/game.c
+++ b/src/game.c
@@ -3402,6 +3402,7 @@ void InitGame(void)
     player->action = 0;
     player->effective_action = 0;
     player->programmed_action = 0;
+    player->snap_action = 0;
 
     player->mouse_action.lx = 0;
     player->mouse_action.ly = 0;
@@ -11993,7 +11994,8 @@ void GameActions_RND(void)
           element == EL_DC_MAGIC_WALL_FULL ||
           element == EL_DC_MAGIC_WALL_ACTIVE ||
           element == EL_DC_MAGIC_WALL_EMPTYING) &&
-         ABS(x-jx) + ABS(y-jy) < ABS(magic_wall_x-jx) + ABS(magic_wall_y-jy))
+         ABS(x - jx) + ABS(y - jy) <
+         ABS(magic_wall_x - jx) + ABS(magic_wall_y - jy))
       {
        magic_wall_x = x;
        magic_wall_y = y;
@@ -12511,7 +12513,6 @@ boolean MovePlayer(struct PlayerInfo *player, int dx, int dy)
        game.centered_player_nr == -1))
   {
     int old_scroll_x = scroll_x, old_scroll_y = scroll_y;
-    int offset = game.scroll_delay_value;
 
     if (!IN_VIS_FIELD(SCREENX(jx), SCREENY(jy)))
     {
@@ -12523,15 +12524,19 @@ boolean MovePlayer(struct PlayerInfo *player, int dx, int dy)
     }
     else
     {
+      int offset = game.scroll_delay_value;
+
       if (jx != old_jx)                // player has moved horizontally
       {
-       if ((player->MovDir == MV_LEFT  && scroll_x > jx - MIDPOSX + offset) ||
-           (player->MovDir == MV_RIGHT && scroll_x < jx - MIDPOSX - offset))
-         scroll_x = jx-MIDPOSX + (scroll_x < jx-MIDPOSX ? -offset : +offset);
+       int offset_x = offset * (player->MovDir == MV_LEFT ? +1 : -1);
+       int new_scroll_x = jx - MIDPOSX + offset_x;
+
+       if ((player->MovDir == MV_LEFT  && scroll_x > new_scroll_x) ||
+           (player->MovDir == MV_RIGHT && scroll_x < new_scroll_x))
+         scroll_x = new_scroll_x;
 
        // don't scroll over playfield boundaries
-       if (scroll_x < SBX_Left || scroll_x > SBX_Right)
-         scroll_x = (scroll_x < SBX_Left ? SBX_Left : SBX_Right);
+       scroll_x = MIN(MAX(SBX_Left, scroll_x), SBX_Right);
 
        // don't scroll more than one field at a time
        scroll_x = old_scroll_x + SIGN(scroll_x - old_scroll_x);
@@ -12543,13 +12548,15 @@ boolean MovePlayer(struct PlayerInfo *player, int dx, int dy)
       }
       else                     // player has moved vertically
       {
-       if ((player->MovDir == MV_UP   && scroll_y > jy - MIDPOSY + offset) ||
-           (player->MovDir == MV_DOWN && scroll_y < jy - MIDPOSY - offset))
-         scroll_y = jy-MIDPOSY + (scroll_y < jy-MIDPOSY ? -offset : +offset);
+       int offset_y = offset * (player->MovDir == MV_UP ? +1 : -1);
+       int new_scroll_y = jy - MIDPOSY + offset_y;
+
+       if ((player->MovDir == MV_UP   && scroll_y > new_scroll_y) ||
+           (player->MovDir == MV_DOWN && scroll_y < new_scroll_y))
+         scroll_y = new_scroll_y;
 
        // don't scroll over playfield boundaries
-       if (scroll_y < SBY_Upper || scroll_y > SBY_Lower)
-         scroll_y = (scroll_y < SBY_Upper ? SBY_Upper : SBY_Lower);
+       scroll_y = MIN(MAX(SBY_Upper, scroll_y), SBY_Lower);
 
        // don't scroll more than one field at a time
        scroll_y = old_scroll_y + SIGN(scroll_y - old_scroll_y);