Provide YinYang items to players via global setting

src/WorldProxy.cc

@@ -78,6 +78,8 @@ namespace enigma {
             return server::LevelTime;    // read only
         } else if (key == "ProvideExtralifes") {
             return server::ProvideExtralifes;
+        } else if (key == "ProvideYinYang") {
+            return server::ProvideYinYang;
         } else if (key == "InfiniteReincarnation") {
             return server::InfiniteReincarnation;
         } else if (key == "ShowMoves") {
@@ -199,6 +201,9 @@ namespace enigma {
             ASSERT(server::ProvideExtralifes || !newFlag, XLevelRuntime, 
                 "Attribute 'ProvideExtralifes': toggling from false to true not allowed");
             server::ProvideExtralifes = newFlag;
+        } else if (key == "ProvideYinYang") {
+            bool newFlag = val.to_bool();
+            server::ProvideYinYang = newFlag;
         } else if (key == "InfiniteReincarnation") {
             server::InfiniteReincarnation = val.to_bool();            
         } else if (key == "ShowMoves") {

src/player.cc

@@ -182,8 +182,12 @@ void player::AddYinYang() {
 }
 
 void player::LevelLoaded(bool isRestart) {
-    if (server::TwoPlayerGame && server::SingleComputerGame)
+    if (server::TwoPlayerGame && server::SingleComputerGame) {
         AddYinYang();
+    }
+    if (server::ProvideYinYang) {
+        AddYinYang();
+    }
     RedrawInventory();
 }
 

src/server.cc

@@ -88,6 +88,7 @@ bool ConserveLevel;
 bool IsDifficult;     // read only for Lua
 bool IsLevelRestart;  // no Lua access
 bool ProvideExtralifes;
+bool ProvideYinYang;
 bool InfiniteReincarnation;
 bool SurviveFinish;
 int AddSecondsToScore;
@@ -253,6 +254,7 @@ void PrepareLevel() {
     LevelTime = 0.0;
     ConserveLevel = true;
     ProvideExtralifes = true;
+    ProvideYinYang = false;
     InfiniteReincarnation = false;
     SurviveFinish = true;
     AddSecondsToScore = 0;

src/server.hh

@@ -61,6 +61,7 @@ extern bool ConserveLevel;
 extern bool IsDifficult;
 extern bool IsLevelRestart;
 extern bool ProvideExtralifes;
+extern bool ProvideYinYang;
 extern bool InfiniteReincarnation;  // do not remove extralife on respawn
 extern bool SurviveFinish;
 extern int AddSecondsToScore;