entity.cpp

来自「quake3工具源码。包括生成bsp文件」· C++ 代码 · 共 913 行 · 第 1/2 页

============
*/
void Entity_Write (entity_t *e, FILE *f, qboolean use_region)
{
	epair_t		*ep;
	brush_t		*b;
	vec3_t		origin;
	char		text[128];
	int			count;

	// if none of the entities brushes are in the region,
	// don't write the entity at all
	if (use_region)
	{
		// in region mode, save the camera position as playerstart
		if ( !strcmp(ValueForKey (e, "classname"), "info_player_start") )
		{
			fprintf (f, "{\n");
			fprintf (f, "\"classname\" \"info_player_start\"\n");
			fprintf (f, "\"origin\" \"%i %i %i\"\n", (int)g_pParentWnd->GetCamera()->Camera().origin[0],
				(int)g_pParentWnd->GetCamera()->Camera().origin[1], (int)g_pParentWnd->GetCamera()->Camera().origin[2]);
			fprintf (f, "\"angle\" \"%i\"\n", (int)g_pParentWnd->GetCamera()->Camera().angles[YAW]);
			fprintf (f, "}\n");
			return;
		}

		for (b=e->brushes.onext ; b != &e->brushes ; b=b->onext)
			if (!Map_IsBrushFiltered(b))
				break;	// got one

		if (b == &e->brushes)
			return;		// nothing visible
	}

	if ( e->eclass->nShowFlags & ECLASS_PLUGINENTITY )
	{
		// NOTE: the whole brush placement / origin stuff is a mess
		VectorCopy( e->origin, origin );
		sprintf (text, "%i %i %i", (int)origin[0], (int)origin[1], (int)origin[2]);
		SetKeyValue (e, "origin", text);
	}
	// if fixedsize, calculate a new origin based on the current
	// brush position
	else if (e->eclass->fixedsize)
	{
		if (e->eclass->nShowFlags & ECLASS_MISCMODEL && e->md3Class != NULL)
		{
			VectorCopy(e->origin, origin);
			//VectorSubtract (e->brushes.onext->mins, e->md3Class->mins, origin);
		}
		else
		{
			VectorSubtract (e->brushes.onext->mins, e->eclass->mins, origin);
		}
		sprintf (text, "%i %i %i", (int)origin[0], (int)origin[1], (int)origin[2]);
		SetKeyValue (e, "origin", text);
	}

	fprintf (f, "{\n");
	for (ep = e->epairs ; ep ; ep=ep->next)
		fprintf (f, "\"%s\" \"%s\"\n", ep->key, ep->value);

	if (!e->eclass->fixedsize)
	{
		count = 0;
		for (b=e->brushes.onext ; b != &e->brushes ; b=b->onext)
		{
			if (!use_region || !Map_IsBrushFiltered (b))
      {
				fprintf (f, "// brush %i\n", count);
				count++;
				Brush_Write (b, f);
			}
		}
	}
	fprintf (f, "}\n");
}



qboolean IsBrushSelected(brush_t* bSel)
{
	for (brush_t* b = selected_brushes.next ;b != NULL && b != &selected_brushes; b = b->next)
  {
    if (b == bSel)
      return true;
  }
  return false;
}

//
//============
//Entity_WriteSelected
//============
//
void Entity_WriteSelected(entity_t *e, FILE *f)
{
	epair_t		*ep;
	brush_t		*b;
	vec3_t		origin;
	char		text[128];
	int			count;

	for (b=e->brushes.onext ; b != &e->brushes ; b=b->onext)
		if (IsBrushSelected(b))
			break;	// got one

	if (b == &e->brushes)
		return;		// nothing selected

	// if fixedsize, calculate a new origin based on the current
	// brush position
	if (e->eclass->fixedsize)
	{
    if (e->eclass->nShowFlags & ECLASS_MISCMODEL && e->md3Class != NULL)
    {
      VectorCopy(e->origin, origin);
		  //VectorSubtract (e->brushes.onext->mins, e->md3Class->mins, origin);
    }
    else
    {
		  VectorSubtract (e->brushes.onext->mins, e->eclass->mins, origin);
    }
    sprintf (text, "%i %i %i", (int)origin[0], (int)origin[1], (int)origin[2]);
		SetKeyValue (e, "origin", text);
	}

  fprintf (f, "{\n");
	for (ep = e->epairs ; ep ; ep=ep->next)
	  fprintf (f, "\"%s\" \"%s\"\n", ep->key, ep->value);

  if (!e->eclass->fixedsize)
  {
	  count = 0;
	  for (b=e->brushes.onext ; b != &e->brushes ; b=b->onext)
	  {
		  if (IsBrushSelected(b))
		  {
			  fprintf (f, "// brush %i\n", count);
			  count++;
			  Brush_Write (b, f);
		  }
	  }
  }
	fprintf (f, "}\n");
}


//
//============
//Entity_WriteSelected to a CMemFile
//============
//
void Entity_WriteSelected(entity_t *e, CMemFile* pMemFile)
{
	epair_t		*ep;
	brush_t		*b;
	vec3_t		origin;
	char		text[128];
	int			count;

	for (b=e->brushes.onext ; b != &e->brushes ; b=b->onext)
		if (IsBrushSelected(b))
			break;	// got one

	if (b == &e->brushes)
		return;		// nothing selected

	// if fixedsize, calculate a new origin based on the current
	// brush position
	if (e->eclass->fixedsize)
	{
    if (e->eclass->nShowFlags & ECLASS_MISCMODEL && e->md3Class != NULL)
    {
		  //VectorSubtract (e->brushes.onext->mins, e->md3Class->mins, origin);
      VectorCopy(e->origin, origin);
    }
    else
    {
		  VectorSubtract (e->brushes.onext->mins, e->eclass->mins, origin);
    }
    sprintf (text, "%i %i %i", (int)origin[0], (int)origin[1], (int)origin[2]);
		SetKeyValue (e, "origin", text);
	}

  MemFile_fprintf(pMemFile, "{\n");
	for (ep = e->epairs ; ep ; ep=ep->next)
	  MemFile_fprintf(pMemFile, "\"%s\" \"%s\"\n", ep->key, ep->value);

  if (!e->eclass->fixedsize)
  {
	  count = 0;
	  for (b=e->brushes.onext ; b != &e->brushes ; b=b->onext)
	  {
		  if (IsBrushSelected(b))
		  {
			  MemFile_fprintf(pMemFile, "// brush %i\n", count);
			  count++;
			  Brush_Write (b, pMemFile);
		  }
	  }
  }
	MemFile_fprintf(pMemFile, "}\n");
}




/*
============
Entity_Create

Creates a new entity out of the selected_brushes list.
If the entity class is fixed size, the brushes are only
used to find a midpoint.  Otherwise, the brushes have
their ownership transfered to the new entity.
============
*/
entity_t	*Entity_Create (eclass_t *c)
{
	entity_t	*e;
	brush_t		*b;
	vec3_t		mins, maxs;
	int			i;

	// check to make sure the brushes are ok

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
  {
		if (b->owner != world_entity)
		{
			Sys_Printf ("Entity NOT created, brushes not all from world\n");
			Sys_Beep ();
			return NULL;
		}
  }

	// create it

	e = (entity_t*)qmalloc(sizeof(*e));
	e->entityId = g_entityId++;
	e->brushes.onext = e->brushes.oprev = &e->brushes;
	e->eclass = c;
	SetKeyValue (e, "classname", c->name);

	// add the entity to the entity list
  Entity_AddToList(e, &entities);

	// plugin entity ?
	if (c->nShowFlags & ECLASS_PLUGINENTITY)
	{
		// locate the plugin
		CPlugIn * pPlug = g_pParentWnd->GetPlugInMgr().PluginForModule( c->hPlug );
		if (pPlug)
		{
			//
			// just use the selection for positioning
			//
			b = selected_brushes.next;
			for (i=0 ; i<3 ; i++)
				e->origin[i] = b->mins[i] - c->mins[i];

			// create the plugin entity
			IPluginEntity* pPlugEnt = pPlug->CreatePluginEntity( e );
			
			if (pPlugEnt)
			{
				e->pPlugEnt = pPlugEnt;
				// the brush is used to select and move
				pPlugEnt->GetBounds( mins, maxs );
				b = Brush_Create (mins, maxs, &c->texdef);
				
				Entity_LinkBrush (e, b);
				
				// delete the current selection
				Select_Delete ();
				
				// select the new brush
				b->next = b->prev = &selected_brushes;
				selected_brushes.next = selected_brushes.prev = b;
				
				Brush_Build( b );
			}
		}
		else
		{
			Sys_Printf( "WARNING: plugin lookup failed while creating a plugin entitiy in Entity_Create\n" );
			return NULL;
		}
	}
	else if (c->fixedsize)
	{
		//
		// just use the selection for positioning
		//
		b = selected_brushes.next;
		for (i=0 ; i<3 ; i++)
			e->origin[i] = b->mins[i] - c->mins[i];

		// create a custom brush
		VectorAdd (c->mins, e->origin, mins);
		VectorAdd (c->maxs, e->origin, maxs);

	  b = Brush_Create (mins, maxs, &c->texdef);

		Entity_LinkBrush (e, b);

		// delete the current selection
		Select_Delete ();

		// select the new brush
		b->next = b->prev = &selected_brushes;
		selected_brushes.next = selected_brushes.prev = b;

		Brush_Build( b );
	}
	else
	{
		//
		// change the selected brushes over to the new entity
		//
		for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
		{
			Entity_UnlinkBrush (b);
			Entity_LinkBrush (e, b);
			Brush_Build( b );	// so the key brush gets a name
		}
	}

	Sys_UpdateWindows (W_ALL);
	return e;
}


/*
===========
Entity_LinkBrush
===========
*/
void Entity_LinkBrush (entity_t *e, brush_t *b)
{
	if (b->oprev || b->onext)
		Error ("Entity_LinkBrush: Allready linked");
	b->owner = e;

	b->onext = e->brushes.onext;
	b->oprev = &e->brushes;
	e->brushes.onext->oprev = b;
	e->brushes.onext = b;
}

/*
===========
Entity_UnlinkBrush
===========
*/
void Entity_UnlinkBrush (brush_t *b)
{
	//if (!b->owner || !b->onext || !b->oprev)
	if (!b->onext || !b->oprev)
		Error ("Entity_UnlinkBrush: Not currently linked");
	b->onext->oprev = b->oprev;
	b->oprev->onext = b->onext;
	b->onext = b->oprev = NULL;
	b->owner = NULL;
}


/*
===========
Entity_Clone
===========
*/
entity_t	*Entity_Clone (entity_t *e)
{
	entity_t	*n;
	epair_t		*ep, *np;

	n = (entity_t*)qmalloc(sizeof(*n));
	n->entityId = g_entityId++;
	n->brushes.onext = n->brushes.oprev = &n->brushes;
	n->eclass = e->eclass;

	// add the entity to the entity list
	Entity_AddToList(n, &entities);

	for (ep = e->epairs ; ep ; ep=ep->next)
	{
		np = (epair_t*)qmalloc(sizeof(*np));
		np->key = copystring(ep->key);
		np->value = copystring(ep->value);
		np->next = n->epairs;
		n->epairs = np;
	}
	return n;
}

int GetUniqueTargetId(int iHint)
{
	int iMin, iMax, i;
	BOOL fFound;
	entity_t *pe;
	
	fFound = FALSE;
	pe = entities.next;
	iMin = 0; 
	iMax = 0;
	
	for (; pe != NULL && pe != &entities ; pe = pe->next)
	{
		i = IntForKey(pe, "target");
		if (i)
		{
			iMin = min(i, iMin);
			iMax = max(i, iMax);
			if (i == iHint)
				fFound = TRUE;
		}
	}

	if (fFound)
		return iMax + 1;
	else
		return iHint;
}

entity_t *FindEntity(char *pszKey, char *pszValue)
{
	entity_t *pe;
	
	pe = entities.next;
	
	for (; pe != NULL && pe != &entities ; pe = pe->next)
	{
		if (!strcmp(ValueForKey(pe, pszKey), pszValue))
			return pe;
	}

	return NULL;
}

entity_t *FindEntityInt(char *pszKey, int iValue)
{
	entity_t *pe;
	
	pe = entities.next;
	
	for (; pe != NULL && pe != &entities ; pe = pe->next)
	{
		if (IntForKey(pe, pszKey) == iValue)
			return pe;
	}

	return NULL;
}