New feature: food system requires mercs to eat and drink in order to survive

- food and water levels are lowered every hour, eat food to survive
- not doing so leads to various penalties and ultimately death
- added food items for that purpose. Food can degrade over time. Rotten food poisons.
- Mercs automatically consume food if hungry/thirsty and food is in their inventories
- for more info, see http://www.bears-pit.com/board/ubbthreads.php/topics/307396/Re_Mercs_need_food_and_water_t.html#Post307396
- this feature requires new STI files from the GameDir trunk.

- added a bunch of filler variable to the soldier type, so hopefully savegame compatibility can be maintained easier in the future.

WARNING: This will break savegame compatibility

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@5411 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/World Items.cpp

@@ -28,6 +28,7 @@
 	#include "Quests.h"
 	#include "Soldier Profile.h"
 	#include "message.h"
+	#include "Food.h"	// added by Flugente
 #include "connect.h"
 #endif
 
@@ -895,6 +896,18 @@ void CoolDownWorldItems( BOOLEAN fSetZero )
 						}
 					}
 				}
+				else if ( Item[gWorldItems[ uiCount ].object.usItem].foodtype > 0 )		// food decays
+				{
+					OBJECTTYPE* pObj = &(gWorldItems[ uiCount ].object);				// ... get pointer for this item ...
+
+					if ( pObj != NULL )													// ... if pointer is not obviously useless ...
+					{
+						for(INT16 i = 0; i < pObj->ubNumberOfObjects; ++i)				// ... there might be multiple items here (item stack), so for each one ...
+						{							
+							(*pObj)[i]->data.bTemperature = max(0.0f, (*pObj)[i]->data.bTemperature - Food[Item[pObj->usItem].foodtype].usDecayRate);	// set new temperature														
+						}
+					}
+				}
 			}
 		}
 	}