From: Holger Schemel <info@artsoft.org>
Date: Sun, 16 Feb 2020 20:20:32 +0000 (+0100)
Subject: moved global random variable for EM engine to game structure
X-Git-Tag: 4.2.0.0~110
X-Git-Url: https://git.artsoft.org/?p=rocksndiamonds.git;a=commitdiff_plain;h=fbc0c609bdd53fdab1d4f3b2b680dbe22aad3515

moved global random variable for EM engine to game structure
---

diff --git a/src/game_em/export.h b/src/game_em/export.h
index 3089d48f..66dd1334 100644
--- a/src/game_em/export.h
+++ b/src/game_em/export.h
@@ -28,6 +28,8 @@ struct GlobalInfo_EM
 
 struct GameInfo_EM
 {
+  unsigned int random;
+
   boolean level_solved;
   boolean game_over;
 
@@ -73,12 +75,12 @@ struct GraphicInfo_EM
 struct EngineSnapshotInfo_EM
 {
   struct GameInfo_EM game_em;
-  unsigned int RandomEM;
   struct LOGIC lev;
   struct PLAYER ply[MAX_PLAYERS];
+
+  int frame;
   int screen_x;
   int screen_y;
-  int frame;
 };
 
 
diff --git a/src/game_em/global.h b/src/game_em/global.h
index 40d4e2cc..00b190c6 100644
--- a/src/game_em/global.h
+++ b/src/game_em/global.h
@@ -3,9 +3,14 @@
 
 #include "main_em.h"
 
+
+/* global variables */
+
 extern int frame;
+extern int screen_x, screen_y;
+
 
-/* all global function prototypes */
+/* global function prototypes */
 
 void readjoy(byte, struct PLAYER *);
 
diff --git a/src/game_em/init.c b/src/game_em/init.c
index c99cb8e7..8be34d40 100644
--- a/src/game_em/init.c
+++ b/src/game_em/init.c
@@ -49,13 +49,13 @@ unsigned int InitEngineRandom_EM(int seed)
     int simple_rnd = GetSimpleRandom(1000);
     int i;
 
-    for (i = 0; i < simple_rnd || RandomEM == NEW_RANDOMIZE; i++)
-      RandomEM = RandomEM * 129 + 1;
+    for (i = 0; i < simple_rnd || game_em.random == NEW_RANDOMIZE; i++)
+      game_em.random = game_em.random * 129 + 1;
 
-    seed = RandomEM;
+    seed = game_em.random;
   }
 
-  RandomEM = seed;
+  game_em.random = seed;
 
-  return (unsigned int) seed;
+  return (unsigned int)seed;
 }
diff --git a/src/game_em/input.c b/src/game_em/input.c
index 7eccf546..6eadbbdf 100644
--- a/src/game_em/input.c
+++ b/src/game_em/input.c
@@ -6,20 +6,15 @@
 #include "main_em.h"
 
 
-unsigned int RandomEM;
-
 struct CAVE cav;
 struct LOGIC lev;
 struct PLAYER ply[MAX_PLAYERS];
 
-extern int screen_x;
-extern int screen_y;
-
 struct EngineSnapshotInfo_EM engine_snapshot_em;
 
 void game_init_random(void)
 {
-  RandomEM = 1684108901;
+  game_em.random = 1684108901;
 }
 
 void game_init_cave_buffers(void)
@@ -72,7 +67,7 @@ void GameActions_EM(byte action[MAX_PLAYERS], boolean warp_mode)
   int i;
   boolean any_player_dropping = FALSE;
 
-  RandomEM = RandomEM * 129 + 1;
+  game_em.random = game_em.random * 129 + 1;
 
   frame = (frame - 1) & 7;
 
@@ -169,9 +164,7 @@ void SaveEngineSnapshotValues_EM(void)
   engine_snapshot_em.game_em = game_em;
   engine_snapshot_em.lev = lev;
 
-  engine_snapshot_em.RandomEM = RandomEM;
   engine_snapshot_em.frame = frame;
-
   engine_snapshot_em.screen_x = screen_x;
   engine_snapshot_em.screen_y = screen_y;
 
@@ -186,9 +179,7 @@ void LoadEngineSnapshotValues_EM(void)
   game_em = engine_snapshot_em.game_em;
   lev = engine_snapshot_em.lev;
 
-  RandomEM = engine_snapshot_em.RandomEM;
   frame = engine_snapshot_em.frame;
-
   screen_x = engine_snapshot_em.screen_x;
   screen_y = engine_snapshot_em.screen_y;
 
diff --git a/src/game_em/logic.c b/src/game_em/logic.c
index 42166ebb..73b2d94c 100644
--- a/src/game_em/logic.c
+++ b/src/game_em/logic.c
@@ -1313,7 +1313,8 @@ static void check_player(struct PLAYER *ply)
       ply->dynamite_cnt = 0;
     }
 
-    RandomEM += 7;	/* be a bit more random if the player doesn't move */
+    /* be a bit more random if the player doesn't move */
+    game_em.random += 7;
 
     return;
   }
@@ -7157,7 +7158,8 @@ void logic_players(void)
     ply[i].anim = PLY_still;
   }
 
-  start_check_nr = (RandomEM & 128 ? 0 : 1) * 2 + (RandomEM & 256 ? 0 : 1);
+  start_check_nr = ((game_em.random & 128 ? 0 : 1) * 2 +
+		    (game_em.random & 256 ? 0 : 1));
 
   for (i = 0; i < MAX_PLAYERS; i++)
   {
@@ -7194,7 +7196,7 @@ void logic_objects(void)
   next = lev.next;
   boom = lev.boom;
 
-  seed = RandomEM;
+  seed = game_em.random;
   score = 0;
 
   for (y = lev.top; y < lev.bottom; y++)
@@ -7206,7 +7208,7 @@ void logic_objects(void)
   else
     game_em.game_over = TRUE;
 
-  RandomEM = seed;
+  game_em.random = seed;
 
   /* triple buffering */
   void *temp = lev.cave;
@@ -7254,7 +7256,7 @@ void logic_globals(void)
 
   /* grow amoeba */
 
-  random = RandomEM;
+  random = game_em.random;
 
   for (count = lev.amoeba_time; count--;)
   {
@@ -7268,7 +7270,7 @@ void logic_globals(void)
     random = random * 129 + 1;
   }
 
-  RandomEM = random;
+  game_em.random = random;
 
   /* handle explosions */
 
diff --git a/src/game_em/main_em.h b/src/game_em/main_em.h
index 0e988595..2daa1e86 100644
--- a/src/game_em/main_em.h
+++ b/src/game_em/main_em.h
@@ -85,8 +85,6 @@ extern int			SX, SY;
 // exported variables
 // ----------------------------------------------------------------------------
 
-extern unsigned int RandomEM;
-
 extern struct CAVE cav;
 extern struct LOGIC lev;
 extern struct PLAYER ply[MAX_PLAYERS];