Add "randomfoliage" special property (#118)

* is/setRandomFoliageEnabled (Client function)

Enable/Disable random foliage generation.

BEFORE:
https://drive.google.com/open?id=0BxjQi6_IK2doWjJEaWY3Sm42QW8

AFTER:
https://drive.google.com/open?id=0BxjQi6_IK2doY2xFRzh5aGpXZTA

* Revert "is/setRandomFoliageEnabled (Client function)"

This reverts commit 33fd901.

* Add "randomfoliage" special property

Author: ZReC

Client/game_sa/CGameSA.cpp

@@ -569,6 +569,9 @@ void CGameSA::SetMinuteDuration ( unsigned long ulTime )
 
 bool CGameSA::IsCheatEnabled ( const char* szCheatName )
 {
+    if (!strcmp ( szCheatName, PROP_RANDOM_FOLIAGE ))
+        return IsRandomFoliageEnabled ();
+
     if ( !strcmp ( szCheatName, PROP_SNIPER_MOON ) )
         return IsMoonEasterEggEnabled ();
 
@@ -580,6 +583,12 @@ bool CGameSA::IsCheatEnabled ( const char* szCheatName )
 
 bool CGameSA::SetCheatEnabled ( const char* szCheatName, bool bEnable )
 {
+    if (!strcmp ( szCheatName, PROP_RANDOM_FOLIAGE ))
+    {
+        SetRandomFoliageEnabled ( bEnable );
+        return true;
+    }
+  
     if ( !strcmp( szCheatName, PROP_SNIPER_MOON ) )
     {
         SetMoonEasterEggEnabled ( bEnable );
@@ -598,6 +607,8 @@ bool CGameSA::SetCheatEnabled ( const char* szCheatName, bool bEnable )
 
 void CGameSA::ResetCheats ()
 {
+    SetRandomFoliageEnabled ( true );
+
     SetMoonEasterEggEnabled ( false );
 
     std::map < std::string, SCheatSA* >::iterator it;
@@ -610,6 +621,19 @@ void CGameSA::ResetCheats ()
     }
 }
 
+bool CGameSA::IsRandomFoliageEnabled ()
+{
+    return *(unsigned char *)0x5DD01B == 0x74;
+}
+
+void CGameSA::SetRandomFoliageEnabled ( bool bEnabled )
+{
+    // 0xEB skip random foliage generation
+    MemPut < BYTE > ( 0x5DD01B, bEnabled ? 0x74 : 0xEB );
+    // 0x74 destroy random foliage loaded
+    MemPut < BYTE > ( 0x5DC536, bEnabled ? 0x75 : 0x74 );
+}
+
 bool CGameSA::IsMoonEasterEggEnabled ()
 {
     return *(unsigned char *)0x73ABCF == 0x75;

Client/game_sa/CGameSA.h

@@ -87,6 +87,7 @@
 #define CHEAT_NEVERWANTED           "neverwanted"
 #define CHEAT_HEALTARMORMONEY       "healtharmormoney"
 
+#define PROP_RANDOM_FOLIAGE         "randomfoliage"
 #define PROP_SNIPER_MOON            "snipermoon"
 
 struct SCheatSA {
@@ -215,6 +216,9 @@ class CGameSA : public CGame
     bool                    SetCheatEnabled         ( const char* szCheatName, bool bEnable );
     void                    ResetCheats             ();
 
+    bool                    IsRandomFoliageEnabled  ();
+    void                    SetRandomFoliageEnabled ( bool bEnable );
+
     bool                    IsMoonEasterEggEnabled  ();
     void                    SetMoonEasterEggEnabled ( bool bEnabled );