Initial revision

1 files changed, 1131 insertions, 0 deletions

diff --git a/src/module.c b/src/module.c
new file mode 100644
index 0000000..cd973c0
--- /dev/null
+++ b/src/module.c
@@ -0,0 +1,1131 @@
+#include "3dc.h"
+
+#include "inline.h"
+#include "module.h"
+#include "stratdef.h"
+#include "bh_types.h"
+#include "pvisible.h"
+#include "pfarlocs.h"
+#include "avpview.h"
+#include "ourasert.h"
+#include "pldghost.h"
+
+#if SupportModules
+
+/* imported externs */
+
+extern SCENE Global_Scene;
+extern int NumActiveBlocks;
+extern DISPLAYBLOCK *ActiveBlockList[];
+extern DISPLAYBLOCK *dptr_last;
+extern unsigned char KeyASCII;
+
+/**** Protos ****/
+
+void FindVisibleModules(VMODULE *vptr,int flag);
+
+/**** Statics ****/
+
+static MODULE **Global_ModuleArrayPtr;
+
+void AllNewModuleHandler(void)
+{
+	{
+		int i;
+		SCENEMODULE *smptr;
+		smptr = Global_ModulePtr[Global_Scene];
+		Global_ModuleArrayPtr = smptr->sm_marray;
+	
+		for(i = 0; i < ModuleArraySize; i++)
+		{
+			ModuleCurrVisArray[i] = 0;
+		}
+	}
+	
+	/* handle dynamic module objects */
+	{
+		int numberOfObjects = NumActiveBlocks;
+		
+	   	while (numberOfObjects--)
+		{
+			DISPLAYBLOCK* objectPtr = ActiveBlockList[numberOfObjects];
+			
+			if(objectPtr->ObFlags3 & ObFlag3_DynamicModuleObject)
+			{
+				STRATEGYBLOCK *sbPtr = objectPtr->ObStrategyBlock;
+
+				sbPtr->containingModule = (ModuleFromPosition(&(objectPtr->ObWorld), sbPtr->containingModule));
+				if (sbPtr->containingModule)
+				if (ModuleIsPhysical(sbPtr->containingModule))
+				{
+					ModuleCurrVisArray[sbPtr->containingModule->m_index] = 1;
+					if(sbPtr->containingModule->m_vmptr) FindVisibleModules(sbPtr->containingModule->m_vmptr,1);
+				}
+			}
+		}
+	}
+	
+	/*If this is an network game , and this machine is the ai server , then need to check if
+	  there are any aliens near to other players*/
+	if(AvP.Network!=I_No_Network && AvP.NetworkAIServer)
+	{
+		/* go through the strategy blocks looking for players*/
+		int sbIndex;
+		for(sbIndex=0;sbIndex<NumActiveStBlocks;sbIndex++)
+		{
+			STRATEGYBLOCK *playerSbPtr = ActiveStBlockList[sbIndex];
+			NETGHOSTDATABLOCK *ghostData;
+			if(playerSbPtr->I_SBtype!=I_BehaviourNetGhost) continue;
+			ghostData = (NETGHOSTDATABLOCK *)playerSbPtr->SBdataptr;
+
+			if(ghostData->type==I_BehaviourAlienPlayer ||
+			   ghostData->type==I_BehaviourMarinePlayer ||
+			   ghostData->type==I_BehaviourPredatorPlayer)
+			{
+				int sbIndex2;
+				//found one of the players
+				if(!playerSbPtr->containingModule) continue;
+
+				/*now search through the strategy blocks , to see if any aliens are
+				visible from the player's location*/
+				for(sbIndex2=0;sbIndex2<NumActiveStBlocks;sbIndex2++)
+				{
+					STRATEGYBLOCK *alienSbPtr = ActiveStBlockList[sbIndex2];
+					/*Is it an alien?*/
+					if(alienSbPtr->I_SBtype!=I_BehaviourAlien) continue;
+					if(!alienSbPtr->containingModule) continue;
+
+					if(IsModuleVisibleFromModule(playerSbPtr->containingModule,alienSbPtr->containingModule))
+					{
+						/*The player can see the alien , so link in all modules that the
+						player can see*/
+						if (ModuleIsPhysical(playerSbPtr->containingModule))
+						{
+							ModuleCurrVisArray[playerSbPtr->containingModule->m_index] = 1;
+							if(playerSbPtr->containingModule->m_vmptr) FindVisibleModules(playerSbPtr->containingModule->m_vmptr,1);
+						}
+
+						/*Since all modules visible by this player have now been linked , don't need
+						to check for any more aliens for this player*/
+						break;
+
+					}
+
+				}
+
+			}	
+		}
+	}
+	
+	/* handle player visibilities */
+	{
+		extern MODULE * playerPherModule;
+		playerPherModule = (ModuleFromPosition(&(Global_VDB_Ptr->VDB_World), playerPherModule));
+	
+		if(!playerPherModule)
+		{
+			playerPherModule = (ModuleFromPosition(&(Player->ObWorld), playerPherModule));
+		}
+
+		if (playerPherModule)
+		{
+			ModuleCurrVisArray[playerPherModule->m_index] = 2;
+			if(playerPherModule->m_vmptr) FindVisibleModules(playerPherModule->m_vmptr,2);
+		}
+	}
+
+
+
+	/* handle AIMODULE visibility stuff */
+	{
+		int i;
+		for(i = 0; i < ModuleArraySize; i++)
+		{
+			if (ModuleCurrVisArray[i] == 2)
+			{
+				AIMODULE *aiModulePtr = Global_ModuleArrayPtr[i]->m_aimodule;
+				if (aiModulePtr)
+				{
+					MODULE **modulelistPtr = aiModulePtr->m_module_ptrs;
+					while(*modulelistPtr)
+					{
+						int index = (*modulelistPtr)->m_index;
+						if (!ModuleCurrVisArray[index]) ModuleCurrVisArray[index]=1;
+						modulelistPtr++;
+					}
+				}
+			}
+		}
+	}
+	/* update active block list */
+	{
+		int i;
+	
+		for(i = 0; i < ModuleArraySize; i++)
+		{
+			MODULE *mptr = Global_ModuleArrayPtr[i];
+
+			if(ModuleCurrVisArray[i])
+			{
+				if(mptr->m_dptr == 0 && ((mptr->m_flags & m_flag_dormant) == 0))
+				{
+					AllocateModuleObject(mptr);
+				}
+
+			}
+			else
+			{
+				if(mptr->m_dptr) DeallocateModuleObject(mptr);
+			}
+
+		}
+
+	}
+
+	/* call Patrick's code */
+	DoObjectVisibilities();
+}
+
+
+void FindVisibleModules(VMODULE *vptr,int flag)
+{
+	while(vptr->vmod_type != vmtype_term)
+	{
+		MODULE *mptr;
+
+		/* Add this module to the visible array */
+		if(vptr->vmod_mref.mref_ptr)
+		{
+			mptr = vptr->vmod_mref.mref_ptr;
+			ModuleCurrVisArray[mptr->m_index] = flag;
+		}
+
+		/* VMODULE instructions */
+		switch(vptr->vmod_instr)
+		{
+			case vmodi_null:
+				vptr++;
+				break;
+
+			case vmodi_bra_vc:
+				/* If the door/viewport is closed... */
+				/* Branch to this vptr */
+				/* else vptr++; */
+				if(mptr)
+				{
+					if(mptr->m_flags & m_flag_open) vptr++;
+					else vptr = vptr->vmod_data.vmodidata_ptr;
+				}
+				break;
+		}
+	}
+}
+
+
+int ThisObjectIsInAModuleVisibleFromCurrentlyVisibleModules(STRATEGYBLOCK *sbPtr)
+{
+	VMODULE *vPtr;
+	
+	GLOBALASSERT(sbPtr);
+	GLOBALASSERT(sbPtr->containingModule);
+
+	vPtr = sbPtr->containingModule->m_vmptr;
+	GLOBALASSERT(vPtr);
+	
+	if(ModuleCurrVisArray[sbPtr->containingModule->m_index] == 2)
+	{
+		return 1;
+	}
+	
+	while(vPtr->vmod_type != vmtype_term)
+	{
+		MODULE *mptr;
+
+		/* consider this module */
+		if(vPtr->vmod_mref.mref_ptr)
+		{
+			mptr = vPtr->vmod_mref.mref_ptr;
+			if(ModuleCurrVisArray[mptr->m_index] == 2)
+			{
+				if(vPtr->vmod_instr==vmodi_bra_vc)
+				{
+					if(mptr->m_flags & m_flag_open) return 1;
+				}
+				else
+				{
+					return 1;
+				}
+			}
+		}
+
+		/* VMODULE instructions */
+		switch(vPtr->vmod_instr)
+		{
+			case vmodi_null:
+				vPtr++;
+				break;
+
+			case vmodi_bra_vc:
+				/* If the door/viewport is closed... */
+				/* Branch to this vPtr */
+				/* else vPtr++; */
+				if(mptr)
+				{
+					if(mptr->m_flags & m_flag_open) vPtr++;
+					else vPtr = vPtr->vmod_data.vmodidata_ptr;
+				}
+				break;
+		}
+	}
+
+	return 0;
+}
+
+
+
+
+
+void ModuleFunctions(MODULE *mptr, MFUNCTION mf)
+{
+	switch(mf) 
+	{
+		case mfun_null:
+			break;
+	}
+}
+
+
+void AllocateModuleObject(MODULE *mptr)
+{
+
+	DISPLAYBLOCK *dptr;
+	MODULEMAPBLOCK *mapblockptr;
+	STRATEGYBLOCK *sb = 0;
+
+	#if SupportMorphing
+	MORPHCTRL *mc;
+	#endif
+
+	dptr_last = 0;
+
+	mptr->m_dptr = 0;
+
+	if(mptr == 0) return;					/* Whoops! */
+
+	if(mptr->m_mapptr == 0) return;		/* Not all modules have maps */
+
+
+	dptr = CreateActiveObject();
+
+
+	if(dptr) {
+
+
+		/* Tell the module we exist */
+
+		mptr->m_dptr = dptr;
+
+		/* Tell the object who its module is */
+
+		dptr->ObMyModule = mptr;
+
+		/* Get the strategy block, if it exists */
+
+		if(mptr->m_sbptr) sb = mptr->m_sbptr;
+
+		/* If there is a STRATEGYBLOCK, tell it we exist */
+
+		if(sb) {
+
+			dptr->ObStrategyBlock = sb;
+			sb->SBdptr = dptr;
+
+		}
+
+
+		/* Read the map */
+
+		mapblockptr = mptr->m_mapptr;
+
+		dptr->ObShape = mapblockptr->MapShape;
+
+
+
+		CopyLocation(&mapblockptr->MapWorld, &dptr->ObWorld);
+		CopyEuler(&mapblockptr->MapEuler, &dptr->ObEuler);
+
+		dptr->ObFlags  = mapblockptr->MapFlags;
+		dptr->ObFlags2 = mapblockptr->MapFlags2;
+		dptr->ObFlags3 = mapblockptr->MapFlags3;
+
+
+
+
+		#if SupportMorphing
+
+		/* If there is a strategy block, see if it has a MORPHCTRL structure */
+
+		if(sb) {
+
+			if(sb->SBmorphctrl) {
+
+				/* Pass MORPHCTRL to dptr */
+
+				dptr->ObMorphCtrl = sb->SBmorphctrl;
+
+				/* Copy the morph pointer from the map to the dptr */
+
+				mc = dptr->ObMorphCtrl;
+
+				mc->ObMorphHeader = mapblockptr->MapMorphHeader;
+
+				/* OLD TEST - These values are now set elsewhere */
+				#if 0
+				if(mc->ObMorphHeader) {
+					mc->ObMorphCurrFrame = 0;
+					mc->ObMorphFlags = mph_flag_play/* | mph_flag_noloop | mph_flag_reverse*/;
+					mc->ObMorphSpeed = ONE_FIXED;
+				}
+				#endif
+
+			}
+
+		}
+
+		#endif	/* Support Morphing */
+
+
+		#if InterfaceEngine
+		dbptr->o_chunk = mapblockptr->o_chunk;
+		#endif
+
+		dptr->ObLightType = LightType_PerVertex;
+		dptr->ObFlags |= ObFlag_MultLSrc;
+
+
+		if(mapblockptr->MapVDBData)
+			MapSetVDB(dptr, mapblockptr->MapVDBData);
+
+		dptr->ObLightType = mapblockptr->MapLightType;
+
+
+		MapBlockInit(dptr);
+
+		/* KJL 14:15:34 04/19/97 - their used to be lots of maths here
+		to calculate orientation, but in AvP all modules are aligned to
+		the world space axes... */
+		{
+			extern MATRIXCH IdentityMatrix;
+			dptr->ObMat = IdentityMatrix;
+		}
+		
+
+		/*
+
+		Module lights
+
+		There is an option for a pointer to an array of lights in a module
+		structure. These lights are transferred to the display block and
+		flagged as "LFlag_WasNotAllocated" so that "DeallocateLightBlock()"
+		knows to ignore them.
+
+		The number of lights in the array is "m_numlights" and the pointer
+		is called "m_lightarray".
+
+		The addition of non-allocated does not need to be a module specific
+		option.
+
+		Non-allocated lights can co-exist peacefully with the other lights.
+
+		*/
+
+		if(mptr->m_numlights && mptr->m_lightarray) {
+
+			LIGHTBLOCK *lptr_array = mptr->m_lightarray;
+			int i;
+
+			for(i = mptr->m_numlights; i!=0; i--) {
+
+				/* Make sure the light is flagged correctly */
+
+				lptr_array->LightFlags |= LFlag_WasNotAllocated;
+
+				/* Add the light */
+
+				AddLightBlock(dptr, lptr_array);
+
+				/* Next light from the array */
+
+				lptr_array++;
+
+			}
+
+		}
+
+
+
+
+		/*
+
+		As with shared points, extra item data for prelighting is also
+		copied from the module to the display block.
+
+		WARNING:
+
+		Allocation and deallocation of this pointer is the responsibility
+		of the user!
+
+		*/
+
+		dptr->ObEIDPtr = mptr->m_extraitemdata;
+
+		/* Added Name to DISPLAYBLOCK */
+
+		#if SupportWindows95
+		dptr->name = mptr->name;
+		#endif
+
+		MapPostProcessing(dptr);
+
+
+		ModuleObjectJustAllocated(mptr);				/* Project Function */
+
+		/* Bug Fix */
+
+		if (dptr->ObStrategyBlock) {
+
+			STRATEGYBLOCK *sbptr=dptr->ObStrategyBlock;
+
+			if (sbptr->I_SBtype==I_BehaviourSimpleAnimation) {
+
+				SIMPLE_ANIM_BEHAV_BLOCK *sanimbhv;
+
+				sanimbhv = (SIMPLE_ANIM_BEHAV_BLOCK*)(sbptr->SBdataptr);
+
+				GLOBALASSERT(sanimbhv->bhvr_type == I_BehaviourSimpleAnimation);
+				GLOBALASSERT (dptr == sbptr->SBdptr);
+
+				if(!dptr->ObTxAnimCtrlBlks)	{ 
+					dptr->ObTxAnimCtrlBlks = sanimbhv->tacbSimple;
+				}
+
+			}
+
+		}
+
+	}
+
+	dptr_last = dptr;
+
+}
+
+
+void DeallocateModuleObject(MODULE *mptr)
+
+{
+
+	DISPLAYBLOCK *dptr;
+	STRATEGYBLOCK *sb;
+
+
+	if(mptr->m_dptr) {
+
+		ModuleObjectAboutToBeDeallocated(mptr);	/* Project Function */
+
+		dptr = mptr->m_dptr;
+
+		DestroyActiveObject(dptr);
+
+		/* Clear module reference to dptr */
+
+		mptr->m_dptr = 0;
+
+		/* If there is a STRATEGYBLOCK, clear that reference too */
+
+		if(mptr->m_sbptr) {
+
+			sb = mptr->m_sbptr;
+			sb->SBdptr = 0;
+
+		}
+
+	}
+
+}
+
+
+/*
+
+ The Module Preprocessor
+
+ Pass the array of pointers to modules.
+ This function creates module indices and converts names into pointers.
+
+*/
+
+/*
+  temp patch to match current chunk
+  loader configuration
+*/
+
+void PreprocessAllModules(void)
+{
+
+	SCENEMODULE **sm_array_ptr;
+	SCENEMODULE *sm_ptr;
+
+
+	if(Global_ModulePtr == 0) return;
+
+	sm_array_ptr = Global_ModulePtr;
+
+	while(*sm_array_ptr)
+	{
+		sm_ptr = *sm_array_ptr;
+
+		PreprocessModuleArray(sm_ptr->sm_marray);
+
+		sm_array_ptr++;
+	}
+}
+
+
+
+/*
+
+ A special function to deallocate the module visibility arrays
+
+*/
+
+void DeallocateModuleVisArrays(void)
+
+{
+
+	if(ModuleCurrVisArray) {
+
+		DeallocateMem(ModuleCurrVisArray);
+		ModuleCurrVisArray = 0;
+
+	}
+
+}
+
+
+/*
+
+ Allocate the two arrays used to keep track of module visibility from
+ frame to frame. The function uses the global scene variable to access the
+ appropriate SCENEMODULE and find out how many modules are present. It also
+ deallocates the previous arrays if they exist.
+
+*/
+
+int GetModuleVisArrays(void)
+
+{
+
+	SCENEMODULE *sm_ptr;
+	MODULE **m_array_ptr;
+	MODULE *m_ptr;
+	int index, i;
+
+
+	if(Global_ModulePtr == 0) return No;
+
+	DeallocateModuleVisArrays();
+
+	sm_ptr = Global_ModulePtr[Global_Scene];
+
+	m_array_ptr = sm_ptr->sm_marray;
+	index       = smallint;
+
+	while(*m_array_ptr) {
+
+		m_ptr = *m_array_ptr++;
+		if(m_ptr->m_index > index) index = m_ptr->m_index;
+
+	}
+
+	ModuleArraySize = index + 1;
+
+
+	ModuleCurrVisArray  = AllocateMem(ModuleArraySize);
+
+	if(ModuleCurrVisArray)
+	{
+
+		for(i = 0; i < ModuleArraySize; i++)
+		{
+
+			ModuleCurrVisArray[i]  = 0;
+		}
+
+		#if 0
+		textprint("visibility arrays ok, size %d\n", ModuleArraySize);
+		#endif
+
+		return Yes;
+
+	}
+
+	else return No;
+
+}
+
+
+
+
+#define ppma_print No
+
+
+#if 1
+
+
+void PreprocessModuleArray(MODULE **m_array_ptr)
+{
+	MODULE **m_array = m_array_ptr;
+	MODULE *m_ptr;
+	int index;
+
+
+	#if ppma_print
+	textprint("PreprocessModuleArray %u\n", m_array_ptr);
+	#endif
+
+
+	index = 0;
+
+	while(*m_array) {
+
+		/* Get the module pointer */
+
+		m_ptr = *m_array;
+
+
+		/* Assign the module an index */
+
+		m_ptr->m_index = index++;
+
+
+		#if ppma_print
+		textprint("\nModule %u, ", m_ptr);
+		PrintName(&m_ptr->m_name);
+		textprint(", index %d\n", m_ptr->m_index);
+		textprint("  (vptr = ");
+		PrintName(&m_ptr->m_vptr.mref_name);
+		textprint(")\n");
+		#endif
+
+
+		/* Convert module references from names to pointers */
+
+		if(!(m_ptr->m_flags & m_flag_gotptrs)) {
+
+			#if 0
+			/* Vertical Pointer */
+
+			ConvertModuleNameToPointer(&m_ptr->m_vptr, m_array_ptr);
+
+
+			/* Extent Pointer */
+
+			ConvertModuleNameToPointer(&m_ptr->m_ext, m_array_ptr);
+
+
+			/* Function Pointer */
+
+			ConvertModuleNameToPointer(&m_ptr->m_funref, m_array_ptr);
+
+
+			// Hack by John to make the m_link pointers work
+
+			if (m_ptr->m_link_ptrs)
+			{
+				MREF * m_link_ptr = m_ptr->m_link_ptrs;
+				
+				while (m_link_ptr->mref_ptr)
+				{
+					ConvertModuleNameToPointer(m_link_ptr++, m_array_ptr);
+				}
+
+			}
+			 #endif
+			/* VMODULE Array */
+
+			if(m_ptr->m_vmptr) {
+
+				/* Convert VMODIDATA names to pointers */
+
+				PreprocessVMODIDATA(m_ptr->m_vmptr);
+
+				/* Convert MREF names to pointers */
+				/*
+				v_ptr = m_ptr->m_vmptr;
+
+				while(v_ptr->vmod_type != vmtype_term) {
+
+					ConvertModuleNameToPointer(&v_ptr->vmod_mref, m_array_ptr);
+
+					v_ptr++;
+
+				}
+				*/
+			}
+
+
+			/* Tell the module that its names are now pointers */
+
+			m_ptr->m_flags |= m_flag_gotptrs;
+
+		}
+
+
+		/* Calculate module extents */
+	
+		//I'll set the extents and world position in the loaders -Richard.
+		//GetModuleMapData(m_ptr);
+
+
+		/* Next module array entry */
+
+		m_array++;
+
+	}
+
+	/*WaitForReturn();*/
+
+}
+
+
+#else
+
+
+
+
+#endif
+
+
+/*
+
+ VMODIDATA is the data associated with VMODI, the VMODULE instruction. Some
+ of the data items are names which need to be converted to pointers.
+
+*/
+
+void PreprocessVMODIDATA(VMODULE *v_ptr)
+
+{
+
+	VMODULE *v_array_ptr = v_ptr;
+
+
+	while(v_ptr->vmod_type != vmtype_term) {
+
+		if(!(v_ptr->vmod_flags & vm_flag_gotptrs)) {
+
+			switch(v_ptr->vmod_instr) {
+
+				case vmodi_null:
+					break;
+
+				case vmodi_bra_vc:
+					ConvertVModuleNameToPointer(&v_ptr->vmod_data, v_array_ptr);
+					break;
+
+			}
+
+			v_ptr->vmod_flags |= vm_flag_gotptrs;
+
+		}
+
+		v_ptr++;
+
+	}
+
+}
+
+
+/*
+
+ Convert MREF name to MREF pointer
+
+*/
+
+
+#define cmntp_print No
+
+
+void ConvertModuleNameToPointer(MREF *mref_ptr, MODULE **m_array_ptr)
+
+{
+
+	MODULE *m_ptr;
+	int StillSearching;
+
+
+	#if cmntp_print
+	textprint("ConvertModuleNameToPointer\n");
+	#endif
+
+
+	/* Set "null" names to null pointers */
+
+	if(CompareName((char *)&mref_ptr->mref_name, "null")) {
+
+		#if cmntp_print
+		textprint("making ptr null\n");
+		#endif
+
+		mref_ptr->mref_ptr = 0;
+		return;
+
+	}
+
+
+	/* Search for the module with the same name */
+
+	#if cmntp_print
+	textprint("Searching for name...\n");
+	#endif
+
+	StillSearching = Yes;
+
+	while(*m_array_ptr && StillSearching) {
+
+		m_ptr = *m_array_ptr;
+
+		if(CompareName((char *)&mref_ptr->mref_name, (char *)&m_ptr->m_name)) {
+
+			#if cmntp_print
+			textprint("  found name ");
+			PrintName(&m_ptr->m_name);
+			textprint(", ptr %u\n", m_ptr);
+			#endif
+
+			mref_ptr->mref_ptr = m_ptr;
+			StillSearching = No;
+
+		}
+
+		m_array_ptr++;
+
+	}
+
+
+	/* If the name was not found, make this a null pointer */
+
+	if(StillSearching) mref_ptr->mref_ptr = 0;
+
+}
+
+
+/*
+
+ Convert VMODIDATA.vmodidata_label names to VMODIDATA.vmodidata_ptr
+
+*/
+
+
+#define cvmntp_print No
+
+
+void ConvertVModuleNameToPointer(VMODIDATA *vmodidata_ptr, VMODULE *v_array_ptr)
+
+{
+
+	int StillSearching;
+
+
+	#if cvmntp_print
+	textprint("ConvertVModuleNameToPointer\n");
+	#endif
+
+
+	/* Set "null" names to null pointers */
+
+	if(CompareName((char *)&vmodidata_ptr->vmodidata_label, "null")) {
+
+		#if cvmntp_print
+		textprint("  making vmodidata_ptr null\n");
+		#endif
+
+		vmodidata_ptr->vmodidata_ptr = 0;
+		return;
+
+	}
+
+
+	/* Search for the VMODULE with the same name */
+
+	#if cvmntp_print
+	textprint("  Searching for name...\n");
+	#endif
+
+	StillSearching = Yes;
+
+	while((v_array_ptr->vmod_type != vmtype_term) && StillSearching) {
+
+		if(CompareName((char *)&vmodidata_ptr->vmodidata_label, (char *)&v_array_ptr->vmod_name)) {
+
+			#if cmntp_print
+			textprint("  found name ");
+			PrintName(&v_array_ptr->vmod_name);
+			textprint(", ptr %u\n", v_array_ptr);
+			#endif
+
+			vmodidata_ptr->vmodidata_ptr = v_array_ptr;
+			StillSearching = No;
+
+		}
+
+		v_array_ptr++;
+
+	}
+
+
+	/* If the name was not found, make this a null pointer */
+
+	if(StillSearching)
+		{
+			if(v_array_ptr->vmod_type == vmtype_term)
+				{
+					vmodidata_ptr->vmodidata_ptr = v_array_ptr;
+				}
+			else
+				{
+					vmodidata_ptr->vmodidata_ptr = 0;
+				}
+		}
+
+
+}
+
+
+
+
+int CompareName(char *name1, char *name2)
+
+{
+
+	int i;
+
+
+	for(i = 4; i!=0; i--) {
+
+		if(*name1++ != *name2++) return No;
+
+	}
+
+	return Yes;
+
+}
+
+
+void PrintName(char *name)
+
+{
+
+	char m_name[5];
+
+
+	m_name[0] = name[0];
+	m_name[1] = name[1];
+	m_name[2] = name[2];
+	m_name[3] = name[3];
+	m_name[4] = 0;
+	textprint(m_name);
+
+}
+
+
+int IsModuleVisibleFromModule(MODULE *source, MODULE *target) {
+
+	VMODULE *vptr;	
+	MODULE *mptr;
+	int gotit;
+
+	vptr=source->m_vmptr;
+	gotit=0;
+
+	if ((source==NULL)||(target==NULL)) return(0);
+	if (source==target) return(1);
+
+	while(! ((vptr->vmod_type == vmtype_term)||(gotit)) ) {
+
+		/* Add this module to the visible array */
+
+		if(vptr->vmod_mref.mref_ptr) {
+
+			mptr = vptr->vmod_mref.mref_ptr;
+
+			if (mptr==target) gotit=1;
+
+		}
+
+		/* VMODULE instructions */
+
+		switch(vptr->vmod_instr) {
+
+			case vmodi_null:
+
+				vptr++;
+
+				break;
+
+			case vmodi_bra_vc:
+
+				/* NYD */
+
+				/* If the door/viewport is closed... */
+
+				/* Branch to this vptr */
+
+				if(mptr)
+					{
+						if(mptr->m_flags & m_flag_open)
+							vptr++;
+						else
+							vptr = vptr->vmod_data.vmodidata_ptr;
+					}
+
+
+
+				/* else vptr++; */
+
+				break;
+
+		}
+
+	}
+
+	return(gotit);
+
+}
+
+int IsAIModuleVisibleFromAIModule(AIMODULE *source,AIMODULE *target) {
+
+	if ((source==NULL)||(target==NULL)) return(0);
+	if (source==target) return(1);
+
+	{
+		MODULE **targetModulelistPtr;
+		MODULE **sourceModulelistPtr = source->m_module_ptrs;
+		while(*sourceModulelistPtr) {
+
+			targetModulelistPtr=target->m_module_ptrs;
+			while(*targetModulelistPtr) {
+				if (IsModuleVisibleFromModule(*sourceModulelistPtr,*targetModulelistPtr)) {
+					return(1);
+				}
+				targetModulelistPtr++;
+			}
+			sourceModulelistPtr++;
+		}
+	}
+
+	return(0);
+}
+
+#endif
+
+