OpenRaider/src/Render.cpp

/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: t; c-basic-offset: 3 -*- */
/*================================================================
 * 
 * Project : Render
 * Author  : Mongoose
 * Website : http://www.westga.edu/~stu7440/
 * Email   : stu7440@westga.edu
 * Object  : Render
 * License : No use w/o permission (C) 2001 Mongoose
 * Comments: This is the renderer class for OpenRaider
 *
 *
 *           This file was generated using Mongoose's C++ 
 *           template generator script.  <stu7440@westga.edu>
 * 
 *-- History ------------------------------------------------- 
 *
 * 2001.05.21:
 * Mongoose - Created
 =================================================================*/

#include <GL/gl.h>
#include <GL/glu.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>

#ifdef USING_EMITTER
#   include "Emitter.h"
#endif

#ifdef DEBUG_MEMEORY
#   include "memeory_test.h"
#endif

#ifdef DEBUG_GL
#   include "gl_test.cpp"
#endif

#ifdef USING_MD3 
#   include "Md3AnimModel.h"
extern Md3AnimModel gMd3;
#endif

#include "Render.h"

extern entity_t *LARA;
extern World gWorld;

// Colors
const float BLACK[]        = {  0.0,  0.0,  0.0, 1.0 };
const float DIM_WHITE[]    = {  0.5,  0.5,  0.5, 1.0 };
const float WHITE[]        = {  1.0,  1.0,  1.0, 1.0 };
const float RED[]          = {  1.0,  0.0,  0.0, 1.0 };
const float GREEN[]        = {  0.0,  1.0,  0.0, 1.0 };
const float NEXT_PURPLE[]  = {  0.3,  0.3,  0.5, 1.0 };
const float OR_BLUE[]      = {  0.5,  0.7,  1.0, 1.0 };
const float PINK[]         = {  1.0,  0.0,  1.0, 1.0 };
const float YELLOW[]       = {  1.0,  1.0,  0.0, 1.0 };
const float CYAN[]         = {  0.0,  1.0,  1.0, 1.0 };

ViewVolume gViewVolume; /* View volume for frustum culling */


int compareEntites(const void *voidA, const void *voidB)
{
	entity_t *a = (entity_t *)voidA, *b = (entity_t *)voidB;
	vec_t distA, distB;

	if (!a || !b)
		return -1; // error really

	distA = gViewVolume.getDistToSphereFromNear(a->pos[0], 
															  a->pos[1], 
															  a->pos[2], 
															  1.0f);
	distB = gViewVolume.getDistToSphereFromNear(b->pos[0], 
															  b->pos[1], 
															  b->pos[2], 
															  1.0f);

	// less than
	if (distA < distB)
		return -1;
	
	// greater than ( no need for equal )
	return 1;
}


int compareStaticModels(const void *voidA, const void *voidB)
{
	static_model_t *a = (static_model_t *)voidA, *b = (static_model_t *)voidB;
	vec_t distA, distB;

	if (!a || !b)
		return -1; // error really

	distA = gViewVolume.getDistToSphereFromNear(a->pos[0], 
															  a->pos[1], 
															  a->pos[2], 
															  128.0f);
	distB = gViewVolume.getDistToSphereFromNear(b->pos[0], 
															  b->pos[1], 
															  b->pos[2], 
															  128.0f);

	// less than
	if (distA < distB)
		return -1;
	
	// greater than ( no need for equal )
	return 1;
}


int compareRoomDist(const void *voidA, const void *voidB)
{
	RenderRoom *a = (RenderRoom *)voidA, *b = (RenderRoom *)voidB;


	if (!a || !b || !a->room || !b->room)
		return -1; // error really

	// less than
	if (a->dist < b->dist)
		return -1;
	
	// greater than ( no need for equal )
	return 1;
}


////////////////////////////////////////////////////////////
// Constructors
////////////////////////////////////////////////////////////

Render::Render()
{
#ifdef USING_EMITTER
	mEmitter = 0x0;
#endif
	mCamera = 0x0;
	mSkyMesh = -1;
	mMode = Render::modeDisabled;
	mLock = 0;
	mFlags = (Render::fRoomAlpha | Render::fViewModel | Render::fSprites |
				 Render::fRoomModels | Render::fEntityModels | 
				 Render::fUsePortals | fUpdateRoomListPerFrame);

	mModels.setError(0x0);
	mRooms.setError(0x0);
	mRoomRenderList.setError(0x0);
}


Render::~Render()
{
	ClearWorld();
}


////////////////////////////////////////////////////////////
// Public Accessors
////////////////////////////////////////////////////////////

void Render::screenShot(char *filenameBase)
{
	mTexture.glScreenShot(filenameBase, mWidth, mHeight);
}


////////////////////////////////////////////////////////////
// Public Mutators
////////////////////////////////////////////////////////////

void Render::addRoom(RenderRoom *room)
{
	mRooms.pushBack(room);
}


void Render::loadTexture(unsigned char *image, 
								 unsigned int width, unsigned int height,
								 unsigned int id)
{
	glColor3fv(WHITE);
	mTexture.loadBufferSlot(image, width, height, Texture::RGBA, 32, id);
}


void Render::initTextures(char *textureDir, unsigned int *numLoaded, 
								  unsigned int *nextId)
{
	char filename[128];
	bool fastCard = mFlags & Render::fFastCard;
	char *console = "Toggle the Console with [`] key, Menu with <esc>";
	int font_id;
	int snow1_id;
	int snow2_id;
	int bg_id;
	int err;
	int id[5];
	unsigned int numTextures = 0;
	unsigned char color[4];


	// We want to update as needed later 
	mNumTexturesLoaded = numLoaded;
	mNextTextureId = nextId;

	mTexture.reset();
	mTexture.setMaxTextureCount(128);  /* TR never needs more than 32 iirc
													  However, color texturegen is a lot */

	if (fastCard)
	{
		mTexture.setFlag(Texture::fUseMipmaps);
	}

	printf("Processing textures: ");

	color[0] = 0xff;
	color[1] = 0xff;
	color[2] = 0xff;
	color[3] = 0xff;

	if ((font_id = mTexture.loadColorTexture(color, 32, 32)) > -1)
	{
		++numTextures;
	}	

	snprintf(filename, 126, "%s%s", textureDir, "splash.tga");
	filename[127] = 0;

	if ((bg_id = mTexture.loadTGA(filename)) > -1)
	{
		++numTextures;
	}

	snprintf(filename, 126, "%s%s", textureDir, "snow.tga");
	filename[127] = 0;

	if ((snow1_id = mTexture.loadTGA(filename)) > -1)
	{
		++numTextures;
	}

	snprintf(filename, 126, "%s%s", textureDir, "snow2.tga");
	filename[127] = 0;

	if ((snow2_id = mTexture.loadTGA(filename)) > -1)
	{
		++numTextures;
	}

	extern char *gFontFilename;
	if ((mTexture.loadFontTTF(gFontFilename, 
									  //0x303f, 0x3093-0x303f)) // Hiragana
									  32, 126 - 32))  // ASCII
		 > -1)
	{
		++numTextures;
	}

	snprintf(filename, 126, "%s%s", textureDir, "font-0.tga");
	filename[127] = 0;

	if ((font_id = mTexture.loadTGA(filename)) > -1)
	{
		++numTextures;
	}

	// Werid that it isn't linear, must be some storage deal in Texture
	// I forgot about Id allocation
	*nextId = font_id;

	// Setup particle system test
	initEmitter("Snow test", 650, snow1_id, snow2_id);
		
	// Mongoose 2002.01.01, Temp placement of GLString init
	id[0] = font_id;
	id[4] = id[3] = id[2] = id[1] = -1;

	mString.Init(5, 5, id);

	// String 0: OpenRaider version in lower right corner
	mString.Scale(0.90);
	err = mString.glPrintf(mWidth - 14 * strlen(VERSION), 
								  mHeight-24*3, 0, VERSION); 
	mString.SetString(0, VERSION);
	mString.Scale(1.0);

	if (err)
	{
		printf("\n*** GLPrint test: ERROR %i font_tex %i\n", err, id[0]);
	}

	// String 1: Used for FPS in game text output
	err = mString.glPrintf(8, 0, 0, "                ");

	if (err)
	{
		printf("\n*** GLPrint test: ERROR %i font_tex %i\n", err, id[0]);
	}

	// String 2: Used for game console
	err = mString.glPrintf(8, -24, 0, console);
	
	if (err)
	{
		printf("\n*** GLPrint test: ERROR %i font_tex %i\n", err, id[0]);
	}

	// String 3: Used for one line map select menu
	mString.Scale(1.75);
	err = mString.glPrintf(mWidth/2-200, mHeight/2-24, 0, "Press <esc> for menu");
	mString.Scale(1.0);

	if (err)
	{
		printf("\n*** GLPrint test: ERROR %i font_tex %i\n", err, id[0]);
	}

	// String 4: Used for one line in game text output
	err = mString.glPrintf(8, 18*2, 0, "                    ");

	if (err)
	{
		printf("\n*** GLPrint test: ERROR %i font_tex %i\n", err, id[0]);
	}

	printf("\n");

	*numLoaded = numTextures;
}


void Render::loadMd3(char *model, char *skin)
{
#ifdef USING_MD3
	char filename[256];
	
	
	snprintf(filename, 255, "data/models/players/%s", model);

	if (gMd3.load(filename, skin, MD3_LOD_HIGH) < 0) 
	{ 
		printf("ERROR: MD3 '%s' not loaded\n", filename);
	} 
	else
	{
		gMd3.loadWeapon("data/models/weapons2/railgun", "railgun"); 
		gMd3.loadWeapon("data/models/weapons2/plasma", "plasma"); 
		gMd3.loadWeapon("data/models/weapons2/machinegun", "machinegun"); 
		gMd3.setAnimUpper(TORSO_STAND); 
		gMd3.setAnimLower(LEGS_WALK); 

		// Setup textures
		for (unsigned int i = 0; i < gMd3.texNumTest; ++i) 
		{ 
			snprintf(filename, 255, "data/%s", gMd3.texTest[i].name); 
			
			gMd3.texTest[i].gl_texture_id = mTexture.loadTGA(filename, true); 
			
			if (gMd3.texTest[i].gl_texture_id < 0) 
			{ 
				printf("ERROR: Md3 texture '%s' not loaded\n", filename); 
			}
			else
			{
				(*mNumTexturesLoaded)++;
				(*mNextTextureId) = gMd3.texTest[i].gl_texture_id;
			}
		} 
	}
#endif
}


void Render::initEmitter(char *name, unsigned int size, 
								 unsigned int snowTex1, unsigned int snowTex2)
{
#ifdef USING_EMITTER
	// Mongoose 2002.01.01, Screwing around with particle emitter test
	//   note this is backwards b/c load screen is rendered upsidedown
	mEmitter = new Emitter(/*name*/"snow", size);
	mEmitter->SetTextureId(snowTex1);
	mEmitter->TextureId(120, 280, snowTex2);
	mEmitter->TextureId(400, 450, snowTex2);
	mEmitter->TextureId(500, 550, snowTex2);

	// Mongoose 2002.01.01, Varing force and speed should look 
	//   like varing mass/SA in wind, maybe
	mEmitter->Speed(0, 150, 3500, 3000, 3500);
	mEmitter->Speed(150, 350, 3000, 4000, 3000);
	mEmitter->Speed(400, 500, 2000, 5000, 2000);
	mEmitter->Speed(400, 500, 2000, 5000, 2000);
	mEmitter->Force(100, 200, 0.0, 7.0, 0.0);
	mEmitter->Force(200, 300, 0.0, 5.0, 0.0);
	mEmitter->Force(300, 500, 0.0, 10.0, 0.0);
	mEmitter->Force(500, 650, 0.0, 9.0, 0.0);
#endif
}


void Render::ClearWorld()
{
	LARA = NULL;

	mRoomRenderList.clear();
	
	mRooms.erase();

	mModels.erase();

#ifdef USING_EMITTER
	if (mEmitter)
	{
		delete mEmitter;
		mEmitter = 0x0;
	}
#endif
}


// Texture must be set to WHITE solid color texture
void renderTrace(int color, vec3_t start, vec3_t end)
{
	const float widthStart = 10.0f; //5.0f;
	const float widthEnd = 10.0f;
	float delta = 0.01 + (0.15*rand()/(RAND_MAX+1.0)); // for flicker fx


	// Draw two long quads that skrink and fade the they go further out
	glBegin(GL_QUADS);

	switch (color)
	{
	case 0:
		glColor3f(0.9 - delta, 0.2, 0.2);
		break;
	case 1:
		glColor3f(0.2, 0.9 - delta, 0.2);
		break;
	case 2:
	default:
		glColor3f(0.2, 0.2, 0.9 - delta);
	}

	glVertex3f(start[0], start[1], start[2]);
	glVertex3f(start[0], start[1] + widthStart, start[2] + widthStart);
	glVertex3f(end[0], end[1] + widthEnd, end[2] + widthEnd);
	glVertex3f(end[0], end[1], end[2]);

	glVertex3f(start[0],  start[1], start[2]);
	glVertex3f(start[0],  start[1] + widthStart, start[2] - widthStart);
	glVertex3f(end[0], end[1] + widthEnd, end[2] - widthEnd);
	glVertex3f(end[0], end[1], end[2]);

	glVertex3f(start[0],  start[1] + widthStart, start[2] + widthStart);
	glVertex3f(start[0],  start[1] + widthStart, start[2] - widthStart);
	glVertex3f(end[0], end[1] + widthEnd, end[2] - widthEnd);
	glVertex3f(end[0], end[1] + widthEnd, end[2] + widthEnd);
	glEnd();
}


void Render::Init(int width, int height, bool fast_card)
{
	char *s;


	mWidth = width;
	mHeight = height;
	mFlags |= Render::fFastCard;
	
	if (!fast_card)
	{
		mFlags ^= Render::fFastCard;
	}
	
	// Print driver support information
	printf("\n\n\t## GL Driver Info ##\n");
	printf("\tVendor     : %s\n", glGetString(GL_VENDOR));
	printf("\tRenderer   : %s\n", glGetString(GL_RENDERER));
	printf("\tVersion    : %s\n", glGetString(GL_VERSION));
	printf("\tExtensions : %s\n\n\n", (char*)glGetString(GL_EXTENSIONS));

	// Testing for goodies
	// Mongoose 2001.12.31, Fixed string use to check for bad strings
	s = (char*)glGetString(GL_EXTENSIONS);

	if (s && s[0])
	{
		printf("\tGL_ARB_multitexture       \t\t");

		if (strstr(s, "GL_ARB_multitexture"))
		{
			mFlags |= Render::fMultiTexture;
			printf("YES\n");
		}
		else
		{
			printf("NO\n");
		}

		printf("\tGL_EXT_texture_env_combine\t\t");

		if (strstr(s, "GL_EXT_texture_env_combine"))
		{
			printf("YES\n");
		}
		else
		{
			printf("NO\n");
		}
	}

	// Set up Z buffer
	glEnable(GL_DEPTH_TEST);
	glDepthFunc(GL_LESS);

	// Set up culling
	glEnable(GL_CULL_FACE);
	glFrontFace(GL_CW);
	//glFrontFace(GL_CCW);
	//glCullFace(GL_FRONT);

	// Set background to black
	glClearColor(BLACK[0], BLACK[1], BLACK[2], BLACK[3]);

	// Disable lighting 
	glDisable(GL_LIGHTING);

	// Set up alpha blending
	if (fast_card) 
	{
		glEnable(GL_BLEND);
		glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);

		//glEnable(GL_ALPHA_TEST); // Disable per pixel alpha blending
		glAlphaFunc(GL_GREATER, 0);
	}
	else
	{
		glDisable(GL_BLEND);
		glDisable(GL_ALPHA_TEST);
	}

	glPointSize(5.0);

	// Setup shading
	glShadeModel(GL_SMOOTH);

	if (fast_card) 
	{
		glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
		glHint(GL_FOG_HINT, GL_NICEST);
		glEnable(GL_COLOR_MATERIAL);
		glEnable(GL_DITHER);

		// AA polygon edges
		//glEnable(GL_POLYGON_SMOOTH);
		//glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST);
	}
	else
	{
		glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
		glHint(GL_FOG_HINT, GL_FASTEST);
		glDisable(GL_COLOR_MATERIAL);
		glDisable(GL_DITHER);
		glDisable(GL_POLYGON_SMOOTH);
	}

	glDisable(GL_LINE_SMOOTH);
	glDisable(GL_POINT_SMOOTH);
	glDisable(GL_AUTO_NORMAL);
	glDisable(GL_LOGIC_OP);
	glDisable(GL_TEXTURE_1D);
	glDisable(GL_STENCIL_TEST);
	glDisable(GL_FOG);

	glDisable(GL_NORMALIZE);

	glEnableClientState(GL_VERTEX_ARRAY);
	glDisableClientState(GL_EDGE_FLAG_ARRAY);
	glDisableClientState(GL_COLOR_ARRAY);
	glDisableClientState(GL_NORMAL_ARRAY);

	glPolygonMode(GL_FRONT, GL_FILL);

	glMatrixMode(GL_MODELVIEW);
}


void setLighting(bool on)
{
	if (on)
	{
		glEnable(GL_LIGHTING);
		glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 0);
		glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, WHITE);
		glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, WHITE);
		glLightModelfv(GL_LIGHT_MODEL_AMBIENT, DIM_WHITE);
	}
	else
	{
		glDisable(GL_LIGHTING);
	}
}


void lightRoom(RenderRoom *room)
{
  unsigned int i;
  Light *light;


  for (i = 0; i < room->lights.size(); ++i)
  {
	  light = room->lights[i];

	  if (!light)
		  continue;

	  glEnable(GL_LIGHT0 + i);

	  switch (light->mType)
	  {
	  case Light::typeSpot:
		  glLightf(GL_LIGHT0 + i,  GL_SPOT_CUTOFF,    light->mCutoff);
		  glLightfv(GL_LIGHT0 + i, GL_POSITION,       light->mPos);
		  glLightfv(GL_LIGHT0 + i, GL_SPOT_DIRECTION, light->mDir);
		  glLightfv(GL_LIGHT0 + i, GL_DIFFUSE,        light->mColor);
		  break;
	  case Light::typePoint:
	  case Light::typeDirectional:
		  glLightf(GL_LIGHT0 + i, GL_CONSTANT_ATTENUATION, 1.0); // 1.0
	  
		  // GL_QUADRATIC_ATTENUATION
		  // GL_LINEAR_ATTENUATION
		  glLightf(GL_LIGHT0 + i, GL_LINEAR_ATTENUATION, light->mAtt);
		  
		  glLightfv(GL_LIGHT0 + i, GL_DIFFUSE, light->mColor); // GL_DIFFUSE
		  glLightfv(GL_LIGHT0 + i, GL_POSITION, light->mPos);
		  break;
	  }
  }
}


void Render::toggleFlag(unsigned int flag)
{
	if (mFlags & flag)
		clearFlags(flag);
	else
		setFlags(flag);
}


void Render::clearFlags(unsigned int flags)
{
	// _defaults |= flags; // Force removal if it wasn't set
	mFlags ^= flags;

	if (flags & Render::fFog)
	{
		if (glIsEnabled(GL_FOG))
		{ 
			glDisable(GL_FOG);
		}
	}

	if (flags & Render::fGL_Lights)
	{
		setLighting(false);
	}
}


void Render::setFlags(unsigned int flags)
{
	mFlags |= flags;

	if (flags & Render::fFog)
	{
		glEnable(GL_FOG);
		glFogf(GL_FOG_MODE, GL_EXP2);
		glFogf(GL_FOG_DENSITY, 0.00008);
		glFogf(GL_FOG_START, 30000.0);
		glFogf(GL_FOG_END, 50000.0);
		glFogfv(GL_FOG_COLOR, BLACK);
	}

	if (flags & Render::fGL_Lights)
	{
		setLighting(true);
	}
}


void Render::Update(int width, int height)
{
	mWidth = width;
	mHeight = height;
}


int Render::getMode()
{
	return mMode;
}


void Render::setMode(int n)
{
	mMode = n;

	switch (mMode)
	{
	case Render::modeDisabled:
		break;
	case Render::modeSolid:
	case Render::modeWireframe:
		glClearColor(NEXT_PURPLE[0], NEXT_PURPLE[1], 
						 NEXT_PURPLE[2], NEXT_PURPLE[3]);
		glDisable(GL_TEXTURE_2D);
		break;
	default:
		if (mFlags & Render::fFastCard)
		{
			if (mMode == Render::modeLoadScreen)
			{
				glBlendFunc(GL_SRC_ALPHA, GL_ONE);
			}
			else
			{
				glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
			}
		}

		glClearColor(BLACK[0], BLACK[1], BLACK[2], BLACK[3]);

		glEnable(GL_TEXTURE_2D);
	}
}


void Render::Display()
{
	vec3_t curPos;
	vec3_t camPos;
	vec3_t atPos;
	RenderRoom *room;
	int index;


#ifdef DEBUG_MATRIX
	gl_test_reset();
#endif

	// Assertion: Rendering is disabled without texture or camera
	if (!mCamera)
	{
		fprintf(stderr, "Render::Display> ERROR: No camera is registered\n");
		return;
	}

	switch (mMode)
	{
	case Render::modeDisabled:
		return;
		break;
	case Render::modeLoadScreen:
		// Mongoose 2002.01.01, FIXME entry for seperate main drawing method
		drawLoadScreen();
		return;
	default:
		;
	}

	if (mMode == Render::modeWireframe)
		glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
	else
		glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

	index = -1;

	if (LARA)
	{
		float yaw;
		int sector;
		float camOffsetH = 0.0f;

		
		switch (LARA->moveType)
		{
		case worldMoveType_fly:
		case worldMoveType_noClipping:
		case worldMoveType_swim:
			camOffsetH = 64.0f;
			break;
		default:
			camOffsetH = 512.0f;
		}

		curPos[0] = LARA->pos[0];
		curPos[1] = LARA->pos[1];
		curPos[2] = LARA->pos[2];
		yaw = LARA->angles[1];

		index = LARA->room;
		
		// Mongoose 2002.08.24, New 3rd person camera hack
		camPos[0] = curPos[0];
		camPos[1] = curPos[1] - camOffsetH; // UP is lower val
		camPos[2] = curPos[2];
		
		camPos[0] -= (1024.0 * sin(yaw));
		camPos[2] -= (1024.0 * cos(yaw));

		sector = gWorld.getSector(index, camPos[0], camPos[2]);

		// Handle camera out of world
		if (sector < 0 || gWorld.isWall(index, sector))
		{
			camPos[0] = curPos[0] + (64.0 * sin(yaw));
			camPos[1] -= 64.0;
			camPos[2] = curPos[2] + (64.0 * cos(yaw));
		}

		mCamera->setPosition(camPos);
	}

	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glLoadIdentity();

	// Setup view in OpenGL with camera
	mCamera->update();
	mCamera->getPosition(camPos);
	mCamera->getTarget(atPos);
	// Mongoose 2002.08.13, Quick fix to render OpenRaider upside down
	gluLookAt(camPos[0], camPos[1], camPos[2],
				 atPos[0], atPos[1], atPos[2],
	          0.0, -1.0, 0.0);

	// Update view volume for vising
	updateViewVolume();

	// Let's see the LoS -- should be event controled
	if (LARA)
	{ 
		//		SkeletalModel *mdl = (SkeletalModel *)LARA->tmpHook;

		// Draw in solid colors
		glDisable(GL_TEXTURE_2D);
		glDisable(GL_CULL_FACE);
		
		if (LARA->state == 64) // eWeaponFire
		{	
			vec3_t u, v; //, s, t;
			
			// Center of LARA
			u[0] = curPos[0];
			u[1] = curPos[1] - 512.0;
			u[2] = curPos[2];
			
			// Location LARA is aiming at?  ( Not finished yet )
			v[0] = u[0] + (9000.0 * sin(LARA->angles[1]));
			v[1] = u[1] + (9000.0 * sin(LARA->angles[2]));
			v[2] = u[2] + (9000.0 * cos(LARA->angles[1]));
			
			//mtkVectorSubtract(u, v, t);
			//mtkVectorSubtract(u, curPos, s);
			//printf("* %f rad\n", LARA->angles[1]);
			
			// Test tracing of aim
			renderTrace(0, u, v); // v = target
		}

		entity_t *route = LARA->master;

		while (route)
		{
			if (route->master)
			{
				renderTrace(1, route->pos, route->master->pos);
			}

			route = route->master;
		}

		glEnable(GL_CULL_FACE);
		glEnable(GL_TEXTURE_2D);
	}

	// Render world
	glColor3fv(DIM_WHITE); // was WHITE
	drawSkyMesh(96.0);

	// Figure out how much of the map to render
	newRoomRenderList(index);

	// Room solid pass, need to do depth sorting to avoid 2 pass render
	for (mRoomRenderList.start(); mRoomRenderList.forward(); 
		  mRoomRenderList.next())
	{
		room = mRoomRenderList.current();

		if (room)
		{
			if (mFlags & Render::fGL_Lights)
			{
				lightRoom(room);
			}

			drawRoom(room, false);
		}
	}

	// Draw all visible enities
	if (mFlags & Render::fEntityModels)
	{
		entity_t *e;
		Vector<entity_t *> entityRenderList;
		Vector<entity_t *> *entities = gWorld.getEntities();
		
		for (entities->start(); entities->forward(); entities->next())
		{
			e = entities->current();

			// Mongoose 2002.03.26, Don't show lara to it's own player
			if (!e || e == LARA)
			{
				continue;
			}

			// Mongoose 2002.08.15, Nothing to draw, skip
			// Mongoose 2002.12.24, Some entities have no animation  =p
			if (e->tmpHook)
			{
				SkeletalModel *mdl = (SkeletalModel *)e->tmpHook;

				if (mdl->model->animation.empty())
					continue;
			}

			// Is it in view volume? ( Hack to use sphere )
			if (!isVisible(e->pos[0], e->pos[1], e->pos[2], 512.0f))
				continue;

			// Is it in a room we're rendering?
			//if (mRoomRenderList[e->room] == 0x0)
			//{
			//	continue;
			//}
			
			entityRenderList.pushBack(e);
		}

		// Draw objects not tied to rooms
		glPushMatrix();
		drawObjects();
		glPopMatrix();

		// Depth sort entityRenderList with qsort 
		entityRenderList.qSort(compareEntites);

		for (entityRenderList.start(); entityRenderList.forward(); 
			  entityRenderList.next())
		{
			e = entityRenderList.current();

			glPushMatrix();
			glTranslatef(e->pos[0], e->pos[1], e->pos[2]);
			glRotatef(e->angles[1], 0, 1, 0);
			drawModel((SkeletalModel *)e->tmpHook);
			glPopMatrix();
		}
	}

	// Room alpha pass
	// Skip room alpha pass for modes w/o texture 
	if (!(mMode == Render::modeSolid || mMode == Render::modeWireframe))
	{
		for (mRoomRenderList.start(); mRoomRenderList.forward();
			  mRoomRenderList.next())
		{
			room = mRoomRenderList.current();
			
			if (room)
			{
				drawRoom(room, true);
			}
		}
	}

#ifdef USING_EMITTER_IN_GAME
	// Mongoose 2002.01.01, Test particle prototype in game
	if (EMIT && mFlags & RENDER_F_PARTICLES)
	{
		glBlendFunc(GL_SRC_ALPHA, GL_ONE);

		glPushMatrix();
		glLoadIdentity();
		
		glEnable(GL_BLEND);
		glRotatef(180.0, 1.0, 0.0, 0.0);
		glTranslatef(0.0, -820.0, 575.0);
		glScalef(80.0, 80.0, 80.0);
		
		EMIT->Draw();
		
		glPopMatrix();

		// Mongoose 2002.03.26, Account for particle system 
		//   not using new binds by setting WHITE texture here
		mTexture.bindTextureId(0);
	}
#endif

	if (mMode == Render::modeWireframe)
		glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

	glEnterMode2d(mWidth, mHeight);
	glColor3fv(OR_BLUE);
	mString.Render(mWidth, mHeight);
	glExitMode2d();

#ifdef USING_EMITTER
	glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
#endif

	// Mongoose 2002.01.01, Test matrix ops
#ifdef DEBUG_MATRIX
	if (gl_test_val())
	{
		printf("ERROR in matrix stack %i\n", gl_test_val());
	}
#endif

	glFlush();
}


void Render::newRoomRenderList(int index)
{
	static int currentRoomId = -1;
	RenderRoom *room;


	if (mFlags & Render::fUsePortals)
	{
		if (index == -1) // -1 is error, so draw room 0, for the hell of it
		{
			room = mRooms[0];
			
			mRoomRenderList.clear();

			if (room)
			{
				mRoomRenderList.pushBack(room);
			}
		}
		else
		{
			// Update room render list if needed
			if (mFlags & Render::fUpdateRoomListPerFrame || 
				 currentRoomId != index)
			{
				mRoomRenderList.clear();
				room = mRooms[index];
				buildRoomRenderList(room);
			}
		}
	}
	else // Render all rooms pretty much
	{
		if (currentRoomId != index || index == -1)
		{
			printf("*** Room render list -> %i\n", index);
			mRoomRenderList.clear();

			for (mRooms.start(); mRooms.forward(); mRooms.next())
			{
				room = mRooms.current();
				
				if (!room || !room->room)
					continue;

				if (!isVisible(room->room->bbox_min, room->room->bbox_max))
					continue;

				//room->dist = 
				//gViewVolume.getDistToBboxFromNear(room->room->bbox_min, 
				//											 room->room->bbox_max);

				mRoomRenderList.pushBack(room);
			}
		}
	}

	// Depth Sort roomRenderList ( no use in that, work on portals first )
	mRoomRenderList.qSort(compareRoomDist);

	currentRoomId = index;
}


void Render::buildRoomRenderList(RenderRoom *rRoom)
{
	RenderRoom *rRoom2;


	// Must exist
	if (!rRoom || !rRoom->room)
		return;

	// Must be visible, FIXME: Add depth sorting here - remove multipass
	if (!isVisible(rRoom->room->bbox_min, rRoom->room->bbox_max))
		return;

	// Must not already be cached
	for (mRoomRenderList.start(); mRoomRenderList.forward();
		  mRoomRenderList.next())
	{
		rRoom2 = mRoomRenderList.current();

		if (rRoom2 == rRoom)
			return;
	}

	//rRoom->dist = 
	//gViewVolume.getDistToBboxFromNear(rRoom->room->bbox_min, 
	//											 rRoom->room->bbox_max);

	/* Add current room to list */
	mRoomRenderList.pushBack(rRoom);

	if (mFlags & Render::fOneRoom)
	{
		return;
	}
	else if (mFlags & Render::fAllRooms) /* Are you serious? */
	{
		for (mRooms.start(); mRooms.forward(); mRooms.next())
		{
			rRoom2 = mRooms.current();
			
			if (rRoom2 && rRoom2 != rRoom)
			{
				buildRoomRenderList(rRoom2);
			}
		}
		
		return;
	}

	// Try to add adj rooms and their adj rooms, skip this room
	for (rRoom->room->adjacentRooms.start(), rRoom->room->adjacentRooms.next(); 
		  rRoom->room->adjacentRooms.forward(); rRoom->room->adjacentRooms.next())
	{
		if (rRoom->room->adjacentRooms.current() < 0)
			continue;

		rRoom2 = mRooms[rRoom->room->adjacentRooms.current()];

		// Mongoose 2002.03.22, Add portal visibility check here

		if (rRoom2 && rRoom2 != rRoom)
		{
			buildRoomRenderList(rRoom2);
		}
	}
}


void Render::drawSkyMesh(float scale)
{
	skeletal_model_t *model = gWorld.getModel(mSkyMesh);


	if (!model)
		return;

	glDisable(GL_DEPTH_TEST);
	glPushMatrix();
	
	if (mSkyMeshRotation) 
	{
		glRotated(90.0, 1, 0, 0);
	}
	
	glTranslated(0.0, 1000.0, 0.0);
	glScaled(scale, scale, scale);
	//drawModel(model);
	//drawModelMesh(gWorld.getMesh(mSkyMesh), );
	glPopMatrix();
	glEnable(GL_DEPTH_TEST);
}


void Render::drawLoadScreen()
{
	static float wrap = 0.0001f;
	float x = 0.0f, y = 0.0f, z = -160.0f;
	float w = 500.0f, h = 500.0f;


	if (mTexture.getTextureCount() <= 0)
		return;

	// Mongoose 2002.01.01, Rendered while game is loading...
	//   FIXME seperate logo/particle coor later
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glLoadIdentity();

	glColor3fv(WHITE);

	if (mFlags & Render::fGL_Lights)
		glDisable(GL_LIGHTING);

	// Mongoose 2002.01.01, Draw logo/load screen
	glTranslatef(0.0, 0.0, -2000.0);
	glRotatef(180.0, 1.0, 0.0, 0.0);

	// Mongoose 2002.03.26, Account for particle system not using new binds
	//   by not using them here either
	//mTexture.Bind(1);  // Second loaded texture ( index + 1 = 2 )
	if (mFlags & Render::fMultiTexture && wrap < 1.121096f)
	{
		mTexture.bindMultiTexture(1, 3);

		glBegin(GL_TRIANGLE_STRIP);
		mTexture.useMultiTexture(1.0, 1.0, 0.5 - wrap, 1.0);
		glColor3fv(WHITE);
		glVertex3f(x + w, y + h, z);
		mTexture.useMultiTexture(0.0, 1.0, 0.0 - wrap, 1.0);
		glColor3fv(WHITE);
		glVertex3f(x - w, y + h, z);
		mTexture.useMultiTexture(1.0, 0.0, 0.5 - wrap, 0.5);
		glColor3fv(WHITE);
		glVertex3f(x + w, y - h, z);
		mTexture.useMultiTexture(0.0, 0.0, 0.0 - wrap, 0.5);
		glColor3fv(WHITE);
		glVertex3f(x - w, y - h, z);
		glEnd();

		wrap += 0.0012f;

		if (wrap > 1.121096f)
			mTexture.disableMultiTexture();
	}
	else
	{
		glBindTexture(GL_TEXTURE_2D, 2);
		
		glBegin(GL_TRIANGLE_STRIP);
		glTexCoord2f(1.0, 1.0);
		glVertex3f(x + w, y + h, z);
		glTexCoord2f(0.0, 1.0);
		glVertex3f(x - w, y + h, z);
		glTexCoord2f(1.0, 0.0);
		glVertex3f(x + w, y - h, z);
		glTexCoord2f(0.0, 0.0);
		glVertex3f(x - w, y - h, z);
		glEnd();
	}

	if (mFlags & Render::fGL_Lights)
		glEnable(GL_LIGHTING);

#ifdef USING_EMITTER
	// Mongoose 2002.01.01, Test particle prototype on load screen
	if (mEmitter && mFlags & Render::fParticles)
	{
		glPushMatrix();
		glLoadIdentity();

		glEnable(GL_BLEND);
		glRotatef(180.0, 1.0, 0.0, 0.0);
		glTranslatef(0.0, -820.0, 575.0);
		glScalef(80.0, 80.0, 80.0);

		// Update view volume for vising
		updateViewVolume();
		gViewVolume.getFrustum(mEmitter->mFrustum);
		mEmitter->Flags(Emitter::fUseDepthSorting, true);
		mEmitter->Draw();
		
		glPopMatrix();
	}
#endif

	glEnterMode2d(mWidth, mHeight);
	glColor3fv(OR_BLUE);
	mString.Render(mWidth, mHeight);
	glExitMode2d();

	glFlush();
}


void Render::drawObjects()
{
#ifdef USING_FPS_CAMERA
	vec3_t curPos;
#endif
	sprite_seq_t *sprite;


	// Draw lara or other player model ( move to entity rendering method )
	if (mFlags & Render::fViewModel && LARA && LARA->tmpHook)
	{
		SkeletalModel *mdl = (SkeletalModel *)LARA->tmpHook;
		int frame = mdl->getAnimation();


		// Mongoose 2002.03.22, Test 'idle' aniamtions
		if (!LARA->moving)
		{	
			frame = mdl->getIdleAnimation();

			// Mongoose 2002.08.15, Stop flickering of idle lara here
			if (frame == 11)
			{
				mdl->setFrame(0);
			}
		}

		if (mdl)
		{
			animation_frame_t *animation = mdl->model->animation[frame];

			if (animation && mdl->getFrame() > (int)animation->frame.size()-1)
			{
				mdl->setFrame(0);
			}
		}

		glPushMatrix();

#ifdef USING_FPS_CAMERA
		mCamera->getPosition(curPos);
		glTranslated(curPos[0], curPos[1], curPos[2]);
		glRotated(mCamera->getYaw(), 0, 1, 0);
		glTranslated(0, 500, 1200);
#else
		glTranslated(LARA->pos[0], LARA->pos[1], LARA->pos[2]);
		glRotated(mCamera->getYaw(), 0, 1, 0);		
#endif

#ifdef USING_MD3
		glPushMatrix();
		glTranslated(0, -250, -250);
		glRotatef(90.0f, 1, 0, 0);
		glRotatef(90.0f, 0, 0, 1);
		glScalef(0.15, 0.15, 0.15);
		gMd3.render();
		glPopMatrix();
#else
		drawModel((SkeletalModel *)LARA->tmpHook);
#endif
		glPopMatrix();
	}

	// Mongoose 2002.03.22, Draw sprites after player to handle alpha
	if (mFlags & Render::fSprites)
	{
		Vector<sprite_seq_t *> *sprites;
		
		sprites = gWorld.getSprites();

		for (sprites->start(); sprites->forward(); sprites->next())
		{
			sprite = sprites->current();
		
			if (!sprite)
				continue;
		
			if (sprite->sprite && sprite->num_sprites)
			{
				for (int i = 0; i < sprite->num_sprites; i++)
				{
					drawSprite((sprite_t *)(sprite->sprite+i));
				}
			}
		}
	}
}


void Render::drawModel(SkeletalModel *model)
{
	animation_frame_t *animation;
	bone_frame_t *boneframe;
	bone_frame_t *boneframe2 = 0x0;
	bone_tag_t *tag;
	bone_tag_t *tag2;
	unsigned int i;
	int bframe, aframe;
	skeletal_model_t *mdl;


	if (!model || !model->model)
		return;

	mdl = model->model;
	aframe = model->getAnimation();
	bframe = model->getFrame();
	animation = mdl->animation[aframe];

	if (!animation)
	{
#ifdef DEBUG
		printf("ERROR: No animation for model[%i].aframe[%i] %i\n", 
				 mdl->id, aframe, mdl->animation.size());
#endif	
		return;
	}

	if (animation->frame.empty())
	{
#ifdef DEBUG_RENDER
		printf("ERROR: No boneframes?!?!  *** %i:%i ***\n", 
				 mdl->id, bframe);
#endif
		return;
	}

	boneframe = animation->frame[bframe];

	if (!boneframe)
		return;

	if (boneframe->tag.empty())
	{
		printf("Empty bone frame?!?!\n");
		return;
	}

	glTranslatef(boneframe->pos[0], boneframe->pos[1], boneframe->pos[2]);

	for (boneframe->tag.start(); boneframe->tag.forward(); boneframe->tag.next())
	{
		tag = boneframe->tag.current();
		
		if (!tag)
			continue;

		if (boneframe->tag.getCurrentIndex() == 0)
		{
			if (tag->rot[1])
				glRotatef(tag->rot[1], 0, 1, 0);

			if (tag->rot[0])
				glRotatef(tag->rot[0], 1, 0, 0);

			if (tag->rot[2])
				glRotatef(tag->rot[2], 0, 0, 1);
		}
		else
		{
			if (tag->flag & 0x01)
				glPopMatrix();

			if (tag->flag & 0x02)
				glPushMatrix();
		
			glTranslatef(tag->off[0], tag->off[1], tag->off[2]);
			
			if (tag->rot[1])
				glRotatef(tag->rot[1], 0, 1, 0);

			if (tag->rot[0])
				glRotatef(tag->rot[0], 1, 0, 0);

			if (tag->rot[2])
				glRotatef(tag->rot[2], 0, 0, 1);
		}

		// Draw layered lara in TR4 ( 2 meshes per tag )
		if (mdl->tr4Overlay == 1)
		{
			boneframe2 = (mdl->animation[0])->frame[0];

			if (boneframe2)
			{
				tag2 = boneframe2->tag[boneframe->tag.getCurrentIndex()];

				if (tag2)
				{
					drawModelMesh(gWorld.getMesh(tag2->mesh), Render::skeletalMesh);
				}
			}
		}
		
		if (mFlags & Render::fRenderPonytail)
		{
			if (mdl->ponytailId > 0 && 
				 boneframe->tag.getCurrentIndex() == 14)
			{
				glPushMatrix();
				
				// Mongoose 2002.08.30, TEST to align offset
				glTranslatef(mdl->ponytail[0], mdl->ponytail[1], mdl->ponytail[2]);
				glRotatef(mdl->ponytailAngle, 1, 0, 0);

				// HACK: To fill TR4 void between ponytail/head
				//   since no vertex welds are implemented yet
				if (mdl->tr4Overlay == 1)
				{
					glScalef(1.20, 1.20, 1.20);
				}

#ifdef EXPERIMENTAL_NON_ITEM_RENDER				
				drawModel(mModels[mdl->ponytail], 0, 0);
#else
				for (i = 0; i < mdl->ponytailNumMeshes; ++i)
				{
					glPushMatrix();
					
					if (i > 0)
					{
						glRotatef(helRandomNum(-8.0, -10.0), 1, 0, 0);
						glRotatef(helRandomNum(-5.0, 5.0), 0, 1, 0);
						glRotatef(helRandomNum(-5.0, 5.0), 0, 0, 1);

						glTranslatef(0.0, 0.0, mdl->ponyOff);
					}
					
					if (mdl->pigtails)
					{
						glPushMatrix();
						glTranslatef(mdl->ponyOff2, 0.0, 0.0);
						drawModelMesh(gWorld.getMesh(mdl->ponytailMeshId + i), 
										  Render::skeletalMesh);
						glPopMatrix();

						glPushMatrix();
						glTranslatef(-mdl->ponyOff2, 0.0, 0.0);
						drawModelMesh(gWorld.getMesh(mdl->ponytailMeshId + i),
															  Render::skeletalMesh);
						glPopMatrix();
					}
					else
					{
						drawModelMesh(gWorld.getMesh(mdl->ponytailMeshId + i),
															  Render::skeletalMesh);
					}
				}

				for (i = 0; i < mdl->ponytailNumMeshes; ++i)
				{			
					glPopMatrix();
				}
#endif				
				glPopMatrix();
			}
		}

		drawModelMesh(gWorld.getMesh(tag->mesh), Render::skeletalMesh);
	}

	// Cycle frames ( cheap hack from old ent state based system )
	if (mFlags & fAnimateAllModels)
	{
		if (model->getFrame() + 1 > (int)animation->frame.size()-1)
		{
			model->setFrame(0);
		}
		else
		{
			model->setFrame(model->getFrame()+1);
		}
	}
}


void draw_bbox(vec3_t min, vec3_t max, bool draw_points)
{
	// Bind before entering now
	//glBindTexture(GL_TEXTURE_2D, 1);
	glPointSize(4.0);
	//glLineWidth(1.25);

	//FIXME: Need to make custom color key for this
	glColor3fv(RED);

	glBegin(GL_POINTS);
	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(min[0], min[1], min[2]);

	if (draw_points)
	{
      glVertex3f(max[0], min[1], max[2]);
      glVertex3f(min[0], max[1], max[2]);
      glVertex3f(max[0], max[1], min[2]);
      glVertex3f(min[0], min[1], max[2]);
      glVertex3f(min[0], max[1], min[2]);
      glVertex3f(max[0], min[1], min[2]);
	}

	glEnd();

	glColor3fv(GREEN);

	glBegin(GL_LINES);
	// max, top quad
	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(max[0], min[1], max[2]);

	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(min[0], max[1], max[2]);

	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(max[0], max[1], min[2]);

	// max-min, vertical quads
	glVertex3f(min[0], max[1], max[2]);
	glVertex3f(min[0], max[1], min[2]);

	glVertex3f(max[0], min[1], max[2]);
	glVertex3f(max[0], min[1], min[2]);

	glVertex3f(max[0], min[1], max[2]);
	glVertex3f(min[0], min[1], max[2]);

	// min-max, vertical quads
	glVertex3f(max[0], max[1], min[2]);
	glVertex3f(max[0], min[1], min[2]);

	glVertex3f(max[0], max[1], min[2]);
	glVertex3f(min[0], max[1], min[2]);

	glVertex3f(min[0], max[1], max[2]);
	glVertex3f(min[0], min[1], max[2]);


	// min, bottom quad
	glVertex3f(min[0], min[1], min[2]);
	glVertex3f(min[0], max[1], min[2]);
    
	glVertex3f(min[0], min[1], min[2]);
	glVertex3f(max[0], min[1], min[2]);

	glVertex3f(min[0], min[1], min[2]);
	glVertex3f(min[0], min[1], max[2]);
	glEnd();

	glPointSize(1.0);
	//glLineWidth(1.0);
}


void draw_bbox_color(vec3_t min, vec3_t max, bool draw_points, 
							const vec4_t c1, const vec4_t c2)
{
	// Bind before entering now
	//glBindTexture(GL_TEXTURE_2D, 1);
	glPointSize(4.0);
	//glLineWidth(1.25);

	//FIXME: Need to make custom color key for this
	glColor3fv(c1);

	glBegin(GL_POINTS);
	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(min[0], min[1], min[2]);

	if (draw_points)
	{
      glVertex3f(max[0], min[1], max[2]);
      glVertex3f(min[0], max[1], max[2]);
      glVertex3f(max[0], max[1], min[2]);
      glVertex3f(min[0], min[1], max[2]);
      glVertex3f(min[0], max[1], min[2]);
      glVertex3f(max[0], min[1], min[2]);
	}

	glEnd();

	glColor3fv(c2);

	glBegin(GL_LINES);
	// max, top quad
	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(max[0], min[1], max[2]);

	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(min[0], max[1], max[2]);

	glVertex3f(max[0], max[1], max[2]);
	glVertex3f(max[0], max[1], min[2]);

	// max-min, vertical quads
	glVertex3f(min[0], max[1], max[2]);
	glVertex3f(min[0], max[1], min[2]);

	glVertex3f(max[0], min[1], max[2]);
	glVertex3f(max[0], min[1], min[2]);

	glVertex3f(max[0], min[1], max[2]);
	glVertex3f(min[0], min[1], max[2]);

	// min-max, vertical quads
	glVertex3f(max[0], max[1], min[2]);
	glVertex3f(max[0], min[1], min[2]);

	glVertex3f(max[0], max[1], min[2]);
	glVertex3f(min[0], max[1], min[2]);

	glVertex3f(min[0], max[1], max[2]);
	glVertex3f(min[0], min[1], max[2]);


	// min, bottom quad
	glVertex3f(min[0], min[1], min[2]);
	glVertex3f(min[0], max[1], min[2]);
    
	glVertex3f(min[0], min[1], min[2]);
	glVertex3f(max[0], min[1], min[2]);

	glVertex3f(min[0], min[1], min[2]);
	glVertex3f(min[0], min[1], max[2]);
	glEnd();

	glPointSize(1.0);
	//glLineWidth(1.0);
}


void Render::drawRoom(RenderRoom *rRoom, bool draw_alpha)
{
	room_mesh_t *room;


	if (!rRoom || !rRoom->room)
		return;

	room = rRoom->room;

	if (!(mFlags & Render::fRoomAlpha) && draw_alpha)
		return;

	glPushMatrix();
	//LightingSetup();

	glBindTexture(GL_TEXTURE_2D, 1);  // WHITE texture

	if (!draw_alpha &&
		 (mFlags & Render::fPortals || mMode == Render::modeWireframe))
	{
		portal_t *portal;

		glLineWidth(2.0);
		glColor3fv(RED);

		for (room->portals.start(); room->portals.forward(); room->portals.next())
		{
			portal = room->portals.current();

			if (!portal)
				continue;

			glBegin(GL_LINE_LOOP);
			glVertex3fv(portal->vertices[0]);
			glVertex3fv(portal->vertices[1]);
			glVertex3fv(portal->vertices[2]);
			glVertex3fv(portal->vertices[3]);
			glEnd();
		}

		glLineWidth(1.0);

#ifdef OBSOLETE
		glColor3fv(RED);

		for (i = 0; i < (int)room->num_boxes; ++i)
		{
			// Mongoose 2002.08.14, This is a simple test - 
			//   these like portals are really planes
			glBegin(GL_QUADS);
			glVertex3fv(room->boxes[i].a.pos);
			glVertex3fv(room->boxes[i].b.pos);
			glVertex3fv(room->boxes[i].c.pos);
			glVertex3fv(room->boxes[i].d.pos);
			glEnd();
		}		
#endif
	}

	if (mMode == Render::modeWireframe && !draw_alpha)
	{
		draw_bbox(room->bbox_min, room->bbox_max, true);
	}

	glTranslated(room->pos[0], room->pos[1], room->pos[2]);

	// Reset since GL_MODULATE used, reset to WHITE
	glColor3fv(WHITE);

	switch (mMode)
	{
	case modeWireframe:
		rRoom->mesh.mMode = OpenGLMeshModeWireframe;
		break;
	case modeSolid:
		rRoom->mesh.mMode = OpenGLMeshModeSolid;
		break;
	default:
		rRoom->mesh.mMode = OpenGLMeshModeTexture;
		break;
	}

	if (draw_alpha)
	{
		rRoom->mesh.drawAlpha();
	}
	else
	{
		rRoom->mesh.drawSolid();
	}

	glPopMatrix();

	//mTexture.bindTextureId(0);

	// Draw other room meshes and sprites
	if (draw_alpha || mMode == modeWireframe || mMode == modeSolid)
	{
		if (mFlags & Render::fRoomModels)
		{
			static_model_t *mdl;

			for (room->models.start(); room->models.forward(); 
				  room->models.next())
			{
				mdl = room->models.current();
				
				if (!mdl)
					continue;
				
				mdl->pos[0] += room->pos[0];
				mdl->pos[1] += room->pos[1];
				mdl->pos[2] += room->pos[2];

				// Depth sort room model render list with qsort 
				room->models.qSort(compareStaticModels);

				mdl->pos[0] -= room->pos[0];
				mdl->pos[1] -= room->pos[1];
				mdl->pos[2] -= room->pos[2];
			}

			for (room->models.start(); room->models.forward(); 
				  room->models.next())
			{
				drawRoomModel(room->models.current());
			}
		}

		// Draw other room alpha polygon objects
		if (mFlags & Render::fSprites)
		{
			for (room->sprites.start(); room->sprites.forward(); room->sprites.next())
			{
				drawSprite(room->sprites.current());
			}
		}
	}
}


void Render::drawSprite(sprite_t *sprite)
{
	if (!sprite)
		return;

	if (!isVisible(sprite->pos[0], sprite->pos[1], sprite->pos[2], 
						sprite->radius))
		return;

	glPushMatrix();
	glTranslated(sprite->pos[0], sprite->pos[1], sprite->pos[2]);

	// Sprites must always face camera, because they have no depth  =)
	glRotated(mCamera->getYaw(), 0, 1, 0);

	switch (mMode)
	{
	// No vertex lighting on sprites, as far as I see in specs
	// So just draw normal texture, no case 2
	case Render::modeSolid:
		glBegin(GL_TRIANGLE_STRIP);
		glColor3f(sprite->texel[0].st[0], sprite->texel[0].st[2], 0.5);
		glVertex3fv(sprite->vertex[0].pos);

		glColor3f(sprite->texel[1].st[0], sprite->texel[1].st[1], 0.5);
		glVertex3fv(sprite->vertex[1].pos);

		glColor3f(sprite->texel[3].st[0], sprite->texel[3].st[2], 0.5);
		glVertex3fv(sprite->vertex[3].pos);

		glColor3f(sprite->texel[2].st[0], sprite->texel[2].st[1], 0.5);
		glVertex3fv(sprite->vertex[2].pos);
		glEnd();
		break;
	case Render::modeWireframe:
		glColor3fv(CYAN);
		glBegin(GL_LINE_LOOP);
		glVertex3fv(sprite->vertex[0].pos);
		glVertex3fv(sprite->vertex[1].pos);
		glVertex3fv(sprite->vertex[2].pos);
		glVertex3fv(sprite->vertex[3].pos);
		glEnd();
		glColor3fv(WHITE);
		break;
	default:
		glBindTexture(GL_TEXTURE_2D, sprite->texture+1);

		glBegin(GL_TRIANGLE_STRIP);
		glTexCoord2fv(sprite->texel[0].st);
		glVertex3fv(sprite->vertex[0].pos);
		glTexCoord2fv(sprite->texel[1].st);
		glVertex3fv(sprite->vertex[1].pos);
		glTexCoord2fv(sprite->texel[3].st);
		glVertex3fv(sprite->vertex[3].pos);
		glTexCoord2fv(sprite->texel[2].st);
		glVertex3fv(sprite->vertex[2].pos);
		glEnd();
	}

	glPopMatrix();
}


void Render::drawRoomModel(static_model_t *mesh)
{
	model_mesh_t *r_mesh;


	if (!mesh)
		return;

	r_mesh = gWorld.getMesh(mesh->index);

	if (!r_mesh)
		return;

	if (!isVisible(mesh->pos[0], mesh->pos[1], mesh->pos[2], r_mesh->radius))
		return;

	glPushMatrix();
	glTranslated(mesh->pos[0], mesh->pos[1], mesh->pos[2]);
	glRotated(mesh->yaw, 0, 1, 0);
	
	drawModelMesh(r_mesh, roomMesh);
	glPopMatrix();
}


void Render::tmpRenderModelMesh(model_mesh_t *r_mesh, texture_tri_t *ttri)
{
	glBegin(GL_TRIANGLES);
	
	switch (mMode)
	{
	case modeSolid:
	case modeVertexLight:
		if (r_mesh->colors)
		{
			glColor3fv(r_mesh->colors+ttri->index[0]);
			glTexCoord2fv(ttri->st);
			glVertex3fv(r_mesh->vertices+ttri->index[0]*3);
			
			glColor3fv(r_mesh->colors+ttri->index[1]);
			glTexCoord2fv(ttri->st+2);
			glVertex3fv(r_mesh->vertices+ttri->index[1]*3);
			
			glColor3fv(r_mesh->colors+ttri->index[2]);
			glTexCoord2fv(ttri->st+4);
			glVertex3fv(r_mesh->vertices+ttri->index[2]*3);
		}
		else if (r_mesh->normals)
		{
			glNormal3fv(r_mesh->normals+ttri->index[0]*3);
			glTexCoord2fv(ttri->st);
			glVertex3fv(r_mesh->vertices+ttri->index[0]*3);
			
			glNormal3fv(r_mesh->normals+ttri->index[1]*3);
			glTexCoord2fv(ttri->st+2);
			glVertex3fv(r_mesh->vertices+ttri->index[1]*3);
			
			glNormal3fv(r_mesh->normals+ttri->index[2]*3);
			glTexCoord2fv(ttri->st+4);
			glVertex3fv(r_mesh->vertices+ttri->index[2]*3);
		}
		else
		{
			glTexCoord2fv(ttri->st);
			glVertex3fv(r_mesh->vertices+ttri->index[0]*3);
			glTexCoord2fv(ttri->st+2);
			glVertex3fv(r_mesh->vertices+ttri->index[1]*3);
			glTexCoord2fv(ttri->st+4);
			glVertex3fv(r_mesh->vertices+ttri->index[2]*3);
		}
		break;
	case modeWireframe:
		glVertex3fv(r_mesh->vertices+ttri->index[0]*3);
		glVertex3fv(r_mesh->vertices+ttri->index[1]*3);
		glVertex3fv(r_mesh->vertices+ttri->index[2]*3);
		break;
	default:
		glTexCoord2fv(ttri->st);
		glVertex3fv(r_mesh->vertices+ttri->index[0]*3);
		glTexCoord2fv(ttri->st+2);
		glVertex3fv(r_mesh->vertices+ttri->index[1]*3);
		glTexCoord2fv(ttri->st+4);
		glVertex3fv(r_mesh->vertices+ttri->index[2]*3);
	}

	glEnd();
}


void Render::drawModelMesh(model_mesh_t *r_mesh, RenderMeshType type)
{
	texture_tri_t *ttri;
	int lastTexture = -1;


	// If they pass NULL structs let it hang up - this is tmp

	// FIXME: Duh, vis tests need to be put back
	//if (!isVisible(r_mesh->center,	r_mesh->radius, r_mesh->bbox))
	//{
	//	 return;
	//}

#ifdef USE_GL_ARRAYS
	// Setup Arrays ( move these to another method depends on mMode )
	glEnableClientState(GL_VERTEX_ARRAY);
	glVertexPointer(3, GL_FLOAT, 0, r_mesh->vertices);
	
	if (r_mesh->normals)
	{
		glEnableClientState(GL_NORMAL_ARRAY);
		glNormalPointer(3, GL_FLOAT, 0, r_mesh->normals);
	}

	if (r_mesh->colors)
	{
		glEnableClientState(GL_COLOR_ARRAY);
		glColorPointer(4, GL_FLOAT, 0, r_mesh->colors);
	}

	//glTexCoordPointer(2, GL_FLOAT, 0, ttri->st);
	//glDrawArrays(GL_TRIANGLES, i * 3, 3 * j);

	glBegin(GL_TRIANGLES);

	for (r_mesh->texturedTriangles.start(); 
		  r_mesh->texturedTriangles.forward();
		  r_mesh->texturedTriangles.next())
	{
		ttri = r_mesh->texturedTriangles.current();
		
		if (!ttri)
			continue;

		for (k = 0; k < 4; ++k)
		{							
			index = mQuads[i].quads[j*4+k];
			glTexCoord2fv(mQuads[i].texcoors[j*4+k]);
			glArrayElement(mVertices[index]);
		}
	}

	glEnd();
#endif


	// Mongoose 2002.01.08, FIXME 'AMBIENT'
	glColor3fv(WHITE);
	
	if (mMode == modeWireframe)
	{
		switch (type)
		{
		case roomMesh:
			glColor3fv(YELLOW);
			break;
		case skeletalMesh:
			glColor3fv(WHITE);
			break;
		}
	}

	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glBindTexture(GL_TEXTURE_2D, 1);  // White texture for colors

	// Colored Triagles
	for (r_mesh->coloredTriangles.start(); 
		  r_mesh->coloredTriangles.forward();
		  r_mesh->coloredTriangles.next())
	{
		ttri = r_mesh->coloredTriangles.current();
		
		if (!ttri)
			continue;

		if (mMode != modeWireframe && mMode != modeSolid && 
			 ttri->texture != lastTexture)
		{
			glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
			glBindTexture(GL_TEXTURE_2D, ttri->texture+1);
			lastTexture = ttri->texture;
		}

		tmpRenderModelMesh(r_mesh, ttri);
	}

	// Colored Rectagles
	for (r_mesh->coloredRectangles.start(); 
		  r_mesh->coloredRectangles.forward();
		  r_mesh->coloredRectangles.next())
	{
		ttri = r_mesh->coloredRectangles.current();
		
		if (!ttri)
			continue;

		if (mMode != modeWireframe && mMode != modeSolid && 
			 ttri->texture != lastTexture)
		{
			glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
			glBindTexture(GL_TEXTURE_2D, ttri->texture+1);
			lastTexture = ttri->texture;
		}

		tmpRenderModelMesh(r_mesh, ttri);
	}

	// Textured Tris
	for (r_mesh->texturedTriangles.start(); 
		  r_mesh->texturedTriangles.forward();
		  r_mesh->texturedTriangles.next())
	{
		ttri = r_mesh->texturedTriangles.current();
		
		if (!ttri)
			continue;

		if (mMode != modeWireframe && mMode != modeSolid && 
			 ttri->texture != lastTexture)
		{
			glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
			glBindTexture(GL_TEXTURE_2D, ttri->texture+1);
			lastTexture = ttri->texture;
		}

		tmpRenderModelMesh(r_mesh, ttri);
	}

	// Textured Quads
	for (r_mesh->texturedRectangles.start(); 
		  r_mesh->texturedRectangles.forward();
		  r_mesh->texturedRectangles.next())
	{
		ttri = r_mesh->texturedRectangles.current();
		
		if (!ttri)
			continue;

		if (mMode != modeWireframe && mMode != modeSolid && 
			 ttri->texture != lastTexture)
		{
			glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
			glBindTexture(GL_TEXTURE_2D, ttri->texture+1);
			lastTexture = ttri->texture;
		}

		tmpRenderModelMesh(r_mesh, ttri);
	}
}


void Render::setSkyMesh(int index, bool rot)
{
	mSkyMesh = index;
	mSkyMeshRotation = rot;
}


void Render::ViewModel(entity_t *ent, int index)
{
	skeletal_model_t *model;


	if (!ent)
	{
		return;
	}

	model = gWorld.getModel(index);

	if (model)
	{
		ent->modelId = index;
		printf("Viewmodel skeletal model %i\n", model->id);
	}
}


void Render::RegisterCamera(Camera *camera)
{
	if (camera)
	{
		mCamera = camera;
	}
}


GLString *Render::GetString()
{
	return &mString;
}


void Render::addSkeletalModel(SkeletalModel *mdl)
{
	mModels.pushBack(mdl);
}


void Render::updateViewVolume()
{
	matrix_t proj;
	matrix_t mdl;
	

	glGetFloatv(GL_PROJECTION_MATRIX, proj);
	glGetFloatv(GL_MODELVIEW_MATRIX, mdl);
	gViewVolume.updateFrame(proj, mdl);
}


bool Render::isVisible(float bbox_min[3], float bbox_max[3])
{
	// For debugging purposes
	if (mMode == Render::modeWireframe)
	{
		//glPointSize(5.0);
		//glColor3fv(PINK);
		//glBegin(GL_POINTS);
		//glVertex3fv(bbox_min);
		//glVertex3fv(bbox_max);
		//glEnd();

		draw_bbox_color(bbox_min, bbox_max, true, PINK, RED);
	}

	return gViewVolume.isBboxInFrustum(bbox_min, bbox_max);
}


bool Render::isVisible(float x, float y, float z)
{
	// For debugging purposes
	if (mMode == Render::modeWireframe)
	{
		glPointSize(5.0);
		glColor3fv(PINK);
		glBegin(GL_POINTS);
		glVertex3f(x, y, z);
		glEnd();
	}

	return (gViewVolume.isPointInFrustum(x, y, z));	
}


bool Render::isVisible(float x, float y, float z, float radius)
{
	// For debugging purposes
	if (mMode == Render::modeWireframe)
	{
		glPointSize(5.0);
		glColor3fv(PINK);
		glBegin(GL_POINTS);
		glVertex3f(x, y, z);
		glEnd();
	}

	return (gViewVolume.isSphereInFrustum(x, y, z, radius));
}