/*
* Descent 3 
* Copyright (C) 2024 Parallax Software
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.

--- HISTORICAL COMMENTS FOLLOW ---

 * $Logfile: /DescentIII/Main/editor/WireframeGrWnd.cpp $
 * $Revision: 1.1.1.1 $
 * $Date: 2003-08-26 03:57:39 $
 * $Author: kevinb $
 *
 * Wireframe view of mine
 *
 * $Log: not supported by cvs2svn $
 * 
 * 29    4/03/99 5:22p Matt
 * Don't render wireframe when editor rendering disabled
 * 
 * 28    2/05/99 3:49p Jason
 * added more types to color coded topographical window
 * 
 * 27    2/05/99 3:37p Jason
 * added/fixed features for the designers
 * 
 * 26    2/03/99 1:11p Matt
 * Changed the paletted room current faces to be stored in a seperate
 * array, instead of in the room structure.
 * 
 * 25    1/20/99 10:50a Jason
 * added new terrain
 * 
 * 24    1/15/99 7:52p Chris
 * Updated ObjSetPos() to include a f_update_attach_children flag
 * 
 * 23    10/04/98 1:25p Matt
 * 
 * 22    9/23/98 12:30p Jason
 * fixed memory overwrite bug
 * 
 * 21    5/20/98 3:48p Matt
 * Added suport for variable-depth face selection in wireframe view.
 * 
 * 20    5/01/98 3:51p Jason
 * sped up terrain rendering by precaching all megacell lod bitmaps
 * 
 * 19    4/23/98 6:53p Jason
 * changed wireframe map to work with new bitmap changes
 * 
 * 18    4/23/98 6:38p Jason
 * made bitmaps use 1555 format
 * 
 * 17    2/05/98 3:18p Matt
 * Renamed GetSegmentFromPoint() to GetCellFromPoint()
 * 
 * 16    2/05/98 2:57p Matt
 * Changed code to use ObjSetPos()
 * 
 * 15    2/04/98 6:23p Matt
 * Changed object room number to indicate a terrain cell via a flag.  Got
 * rid of the object flag which used to indicate terrain.
 * 
 * 14    12/03/97 6:21p Jason
 * made selections undoable
 * 
 * 13    10/15/97 5:20p Jason
 * did a HUGE overhaul of the bitmap system
 * 
 * 12    10/03/97 3:39p Matt
 * Added seperate sets of wireframe view variables for mine & room views
 * 
 * 11    9/17/97 11:34a Matt
 * Ripped out segment code
 * 
 * 10    9/08/97 4:13p Jason
 * added colored lighting for the terrain
 * 
 * 9     9/06/97 3:21p Matt
 * Reset cur portal when room changes
 * 
 * 8     9/04/97 4:39p Matt
 * Added includes needed as a result of removing includes from d3edit.h
 * 
 * 7     8/29/97 5:14p Matt
 * Switched segment selection function to do rooms instead
 * 
 * 6     8/21/97 3:45p Matt
 * Reset curedge & curvert when changing curroom & curface
 * 
 * 5     8/06/97 11:43a Jason
 * made lightmaps work correctly in the terrain
 * 
 * 4     7/29/97 12:18p Matt
 * Made wireframe search work for rooms & faces
 * 
 * 3     7/22/97 7:08p Matt
 * Cleaned up D3EditState, moving some vars in and some out, and renaming
 * and changing a few others
 * 
 * 32    6/19/97 11:32a Jason
 * fixed bug where you could draw into the topo map even if you weren't
 * viewing terrain
 * 
 * 31    6/12/97 12:43p Jason
 * fixed simple bug where bottom-right edges were being included in
 * terrain selection
 * 
 * 30    6/11/97 2:11p Jason
 * made magnification actually zoom into the texture you're looking at
 * 
 * 29    5/22/97 5:16p Jason
 * added "drawing" on the topo map
 * 
 * 28    5/21/97 3:39p Jason
 * added terrain editing stuff
 * 
 * 27    5/19/97 5:10p Jason
 * changes for our new abstracted renderer code
 * 
 * 26    5/15/97 4:37p Jason
 * fixed some terrain bugs
 * 
 * 25    5/15/97 3:27a Jason
 * implemented terrain magnification
 * 
 * 24    4/11/97 4:20p Jason
 * now draws the player on the wireframe terrain window
 * 
 * 23    4/10/97 4:39p Jason
 * Made selection manager stuff work with terrain topographical map
 * 
 * 22    3/31/97 5:58p Matt
 * Revamped mine update flags
 * 
 * 21    3/20/97 5:54p Matt
 * Made box selection code ignore very small boxes so normal mouse clicks
 * would work
 * 
 * 20    3/20/97 5:01p Matt
 * Added new select-from-box code
 * 
 * 19    3/20/97 3:02p Samir
 * Implemented Selection Manager in Wireframe window.
 * 
 * 18    3/20/97 11:55a Jason
 * changes for terrain editing/drawing
 * 
 * 17    3/02/97 4:25p Matt
 * Added shift-click to select/deselect segments in the wireframe window
 * 
 * 16    2/28/97 2:21p Samir
 * You can drag a box within the wireframe window.
 * 
 * 15    2/27/97 4:26p Matt
 * Fixed curseg selection status messages
 * 
 * 14    2/19/97 5:37p Matt
 * Added code to set curseg from clicking in wireframe window
 * 
 * 13    1/30/97 6:26p Samir
 * Minor change to drawing caption text
 * 
 * 12    1/23/97 4:56p Samir
 * Handles saving screen positions of windows and tileability.
 * 
 * 11    1/21/97 12:43p Samir
 * Floatable-resizable view
 *
 * $NoKeywords: $
 */


#include "stdafx.h"
#include "editor.h"
#include "WireframeGrWnd.h"
#include "3d.h"
#include "gametexture.h"
#include "drawworld.h"
#include "moveworld.h"
#include "selectedroom.h"
#include "terrain.h"
#include "texture.h"
#include "bitmap.h"
#include "erooms.h"

#include <assert.h>
#include "gr.h"
#include "mono.h"
#include "macros.h"
#include "ddio.h"
#include "SelManager.h"
#include "room.h"
#include "lighting.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


/////////////////////////////////////////////////////////////////////////////
// CWireframeGrWnd

CWireframeGrWnd::CWireframeGrWnd()
	:CGrWnd("WireframeScreen")
{
	m_Movable = FALSE;
	m_x1=m_y1=0;
	m_y2=TERRAIN_DEPTH;
	m_x2=TERRAIN_WIDTH;
}

CWireframeGrWnd::~CWireframeGrWnd()
{
}


void DrawIntoTopoMap (int x,int y);

void CWireframeGrWnd::GetHighlightedRect(int *left, int *top, int *right, int *bottom)
{
	*left = m_HighlightedRect.left;
	*top = m_HighlightedRect.top;
	*right = m_HighlightedRect.right;
	*bottom = m_HighlightedRect.bottom;
}


BEGIN_MESSAGE_MAP(CWireframeGrWnd, CWnd)
	//{{AFX_MSG_MAP(CWireframeGrWnd)
	ON_WM_CREATE()
	ON_WM_DESTROY()
	ON_WM_SIZE()
	ON_WM_PAINT()
	ON_WM_MOVE()
	ON_WM_SYSCOMMAND()
	ON_WM_NCACTIVATE()
	ON_WM_NCPAINT()
	ON_WM_LBUTTONDOWN()
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONUP()
	ON_WM_RBUTTONDOWN()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


//??extern void RenderWireFrame (grViewport *my_viewport);
//??extern void RenderTexFrame (grViewport *);

extern bool Disable_editor_rendering;

void CWireframeGrWnd::Render()
{
	//	Don't do a thing if these objects aren't created yet
	if (!m_grScreen) return;
	if (!m_grViewport) return;

	if (Disable_editor_rendering)
		return;

	if (Editor_view_mode==VM_TERRAIN)
		DrawTerrainWorld(m_grViewport,&Wireframe_view->target,&Wireframe_view->orient,Wireframe_view->dist);
	else
		DrawWorld(m_grViewport,&Wireframe_view->target,&Wireframe_view->orient,Wireframe_view->dist,0,Wireframe_view->rad);
}


/////////////////////////////////////////////////////////////////////////////
// CWireframeGrWnd message handlers

BOOL CWireframeGrWnd::Create(RECT &rect, BOOL movable, CWnd *pParent)
{
	RECT new_rect;
	DWORD dwstyle;

	dwstyle = (movable ? GRWND_STYLE : GRWND_STATIC_STYLE);

	::CopyRect(&new_rect, &rect);
	::AdjustWindowRect(&new_rect, dwstyle, FALSE);
	
//	We want this window to start at rect.left, rect.top.
	if (new_rect.left < rect.left) {
		int offx;
		offx = rect.left-new_rect.left;
		new_rect.left += offx;
		new_rect.right += offx;
	}
	if (new_rect.top < rect.top) {
		int offy;
		offy = rect.top-new_rect.top;
		new_rect.top += offy;
		new_rect.bottom += offy;
	}

	::CopyRect(&rect, &new_rect);

	m_grCreated = TRUE;
	m_Movable = movable;

	lstrcpy(m_Name, "Wireframe");

	return CWnd::Create(NULL, m_Name, dwstyle, rect, pParent, IDC_WIREFRAME_WND);
}


int CWireframeGrWnd::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CGrWnd::OnCreate(lpCreateStruct) == -1)
		return -1;

	theApp.wireframe_view = this;
	return 0;
}


void CWireframeGrWnd::OnDestroy() 
{
	CGrWnd::OnDestroy();
	theApp.wireframe_view = NULL;
}


void CWireframeGrWnd::OnSize(UINT nType, int cx, int cy) 
{
	CGrWnd::OnSize(nType, cx, cy);
	
// TODO: Add your message handler code here
	if (m_Movable) {					// Don't change these values if this is a static window
		D3EditState.wirescr_w = cx;
		D3EditState.wirescr_h = cy;
	}
}


void CWireframeGrWnd::OnPaint() 
{
	CPaintDC dc(this); // device context for painting

	//	Draw what's on the screen back page to the desktop
	m_grScreen->flip();
	draw_tile_caption(&dc);
}


void CWireframeGrWnd::OnMove(int x, int y) 
{
	CGrWnd::OnMove(x, y);

//	must do this because actual (left,top) of window should be from title bar, not client
	if (m_Movable) {					// Don't change these values if we aren't movable
		RECT rect;
		GetWindowRect(&rect);
		GetParent()->ScreenToClient(&rect);
		D3EditState.wirescr_x = rect.left;
		D3EditState.wirescr_y = rect.top;
	}
}


// Given an x,y mouse point, returns the terrain cell number at that point
int CWireframeGrWnd::GetCellFromPoint(int x,int y) 
{
	int width=m_grViewport->width();
	int height=m_grViewport->height();

	float xstep=(float)(m_x2-m_x1)/(float)width;
	float ystep=(float)(abs(m_y2-m_y1))/(float)height;

	int destx=xstep*x;
	int desty=ystep*y;

	destx+=m_x1;
	desty+=m_y1;

	desty=(TERRAIN_DEPTH-1)-desty;	// flip due to origin difference

	return (desty*TERRAIN_WIDTH+destx);
}


void CWireframeGrWnd::OnSysCommand(UINT nID, LPARAM lParam) 
{
	// TODO: Add your message handler code here and/or call default

	switch(nID)
	{
		case SC_CLOSE:
			D3EditState.wirescr_visible = 0;
			break;

	}

	CWnd::OnSysCommand(nID, lParam);
}


BOOL CWireframeGrWnd::OnNcActivate(BOOL bActive) 
{
	return CGrWnd::OnNcActivate(bActive);
}


void CWireframeGrWnd::OnNcPaint() 
{
	CGrWnd::OnNcPaint();
}


void CWireframeGrWnd::draw_tile_caption(CDC *dc)
{
	if (!m_Movable) {					
		dc->SetBkMode(TRANSPARENT);
		dc->SetTextColor(RGB(192,192,192));
		if (Editor_view_mode==VM_TERRAIN)
			dc->TextOut(10,10,"Topographical",lstrlen("Topographical"));
		else
			dc->TextOut(10,10,m_Name,lstrlen(m_Name));
	}
}


//	These functions handle special mouse operations within the wireframe window
void EndWireframeSel(editorSelectorManager *esm);


void CWireframeGrWnd::OnLButtonDown(UINT nFlags, CPoint point) 
{
	if (Editor_view_mode==VM_TERRAIN)
	{
		if (KEY_STATE(KEY_LCTRL))
		{
			int cellnum = GetCellFromPoint (point.x,point.y);
			vector pos;

			ComputeTerrainSegmentCenter (&pos,cellnum);
			ObjSetPos(Viewer_object,&pos,MAKE_ROOMNUM(cellnum),NULL,false);

			State_changed = 1;
		}
		else if (KEY_STATE(KEY_LSHIFT))
		{
			int seg=GetCellFromPoint (point.x,point.y);
			
			Terrain_tex_seg[Terrain_seg[seg].texseg_index].tex_index=D3EditState.texdlg_texture;
			World_changed=1;

		}
		else
			SelManager.StartSelection(this, EndWireframeSel, point.x, point.y);

	}
	else		//mine or room mode
	{
		int found_segnum,found_facenum;
		int find_mode = FM_CLOSEST;

		//See if we're clicking on the current face
		found_segnum = ROOMNUM(Curroomp);
		found_facenum = Curface;
		if (WireframeFindRoomFace(m_grViewport,point.x,point.y,&found_segnum,&found_facenum,FM_SPECIFIC)) {
			find_mode = FM_NEXT;
		}

find_again:;

		if (WireframeFindRoomFace(m_grViewport,point.x,point.y,&found_segnum,&found_facenum,find_mode)) {
			if (KEY_STATE(KEY_LSHIFT) || KEY_STATE(KEY_RSHIFT)) {		//ctrl + click means toggle select state
				int newstate;
				newstate = ToggleRoomSelectedState(found_segnum);
				State_changed = 1;
				EditorStatus("Room %d %s",found_segnum,newstate?"selected":"deselected");
			}
			else {
				if (Editor_view_mode == VM_ROOM) {
					ASSERT(found_segnum == D3EditState.current_room);
					Current_faces[D3EditState.current_room - FIRST_PALETTE_ROOM] = found_facenum;
					EditorStatus("Current face set to %d",found_facenum);
				}
				else {
					Curroomp = &Rooms[found_segnum];
					Curface = found_facenum;
					Curedge = Curvert = 0;
					Curportal = -1;
					EditorStatus("Current room:face set to %d:%d",ROOMNUM(Curroomp),Curface);
				}
				State_changed = 1;
			}
		}
		else if (find_mode == FM_NEXT) {
			find_mode = FM_CLOSEST;
			goto find_again;
		}

		//	no more dragging, but something is highlighted.   
		//	so we will redraw world if mouse is pressed

		SelManager.StartSelection(this, EndWireframeSel, point.x, point.y);
	}
	
	CWnd::OnLButtonDown(nFlags, point);
}


void CWireframeGrWnd::OnMouseMove(UINT nFlags, CPoint point) 
{
	if (Editor_view_mode==VM_TERRAIN)
		DrawIntoTopoMap (point.x,point.y);
	CWnd::OnMouseMove(nFlags, point);
}


void CWireframeGrWnd::OnLButtonUp(UINT nFlags, CPoint point) 
{
	CWnd::OnLButtonUp(nFlags, point);
}

//How big a box needs to be before we recognize it
#define MIN_BOX_SIZE 3


void EndWireframeSel(editorSelectorManager *esm)
{
	int left, top, right, bot;
	int n;

	esm->GetSelectedRect(&left, &top, &right, &bot);

	if ((right-left < MIN_BOX_SIZE) || (bot-top < MIN_BOX_SIZE))
		return;

	if (Editor_view_mode==VM_TERRAIN)
	{
		int i;

		if (!(KEY_STATE(KEY_RALT)))
		{		
			for (i=0;i<TERRAIN_WIDTH*TERRAIN_DEPTH;i++)
				TerrainSelected[i]=0;
			Num_terrain_selected=0;
		}
				
		RECT rect;
		int x1,y1,x2,y2;
		esm->m_OwnerWnd->GetWindowRect(&rect);
		esm->m_OwnerWnd->ScreenToClient(&rect);
		theApp.wireframe_view->GetMagCoords (&x1,&y1,&x2,&y2);

		float xstep=(float)(x2-x1)/(float)rect.right;
		float ystep=(float)(abs(y2-y1))/(float)rect.bottom;

		left*=xstep;
		right*=xstep;
		top*=ystep;
		bot*=ystep;

		left+=x1; right+=x1;
		top+=y1; bot+=y1;

		// We switch top and bottom due to the fact that our origin is in the bottom
		// left instead of the top left
		bot=(TERRAIN_DEPTH-1)-bot;
		top=(TERRAIN_DEPTH-1)-top;

		int t;
		int state=1;
		if (KEY_STATE(KEY_RALT))
			state=0;
		
		for (i=bot;i<=top;i++)
		{
			for (t=left;t<=right;t++)
			{
				if (!state)
				{
					if (TerrainSelected[i*TERRAIN_WIDTH+t])
						Num_terrain_selected--;
					TerrainSelected[i*TERRAIN_WIDTH+t]=0;
				}
				else
				{
					TerrainSelected[i*TERRAIN_WIDTH+t]=1;
					Num_terrain_selected++;
				}
			}

		}

		if (KEY_STATE(KEY_LALT))
		{
			
			theApp.wireframe_view->SetMagCoords (left,(TERRAIN_DEPTH-1)-top,right,(TERRAIN_DEPTH-1)-bot);
		}


		World_changed=1;
	}
	else
	{
		if (! (KEY_STATE(KEY_LCTRL) || KEY_STATE(KEY_RCTRL)))		//ctrl + select means add to list
			ClearRoomSelectedList();

		n = SelectRoomsInBox(NULL,left,top,right,bot);
		EditorStatus("%d rooms selected",n);
	}

	esm->EndSelection();
}

void CWireframeGrWnd::DrawPlayerOnTerrain() 
{
	static int lastx=-1,lastz=-1;
	static uint16_t last_color;

	int seg=GetTerrainCellFromPos (&Viewer_object->pos);
	if (seg<0)
		return;

	int x=seg%TERRAIN_WIDTH;
	int z=seg/TERRAIN_WIDTH;

//	x-=(m_x1);
//	z-=m_y1;

	z=(TERRAIN_DEPTH-1)-z;
	
	RECT rect;

	GetWindowRect(&rect);
	ScreenToClient(&rect);

	float xstep=(float)(m_x2-m_x1)/(float)(rect.right-rect.left);
	float ystep=(float)(abs(m_y2-m_y1))/(float)(rect.bottom-rect.top);

	m_grViewport->lock();

	x=(float)x/xstep;
	z=(float)z/ystep;

	if (x<0 || x>rect.right)
		goto getout;
	if (z<0 || z>rect.bottom)
		goto getout;

	if (lastx!=-1 && lastx<(rect.right-rect.left) && lastz<(rect.bottom-rect.top))
		m_grViewport->setpixel (last_color,lastx,lastz);

	lastx=x; lastz=z;
	last_color=m_grViewport->getpixel (lastx,lastz);

	m_grViewport->setpixel (GR_RGB(255,255,255),x,z);

	getout:
	m_grViewport->unlock();
	m_grScreen->flip();

}

void DrawPlayerOnWireframe ()
{
	if (theApp.wireframe_view)
		theApp.wireframe_view->DrawPlayerOnTerrain();
}


void CWireframeGrWnd::GetMagCoords(int *x1,int *y1,int *x2,int *y2) 
{
	*x1=m_x1;
	*x2=m_x2;
	*y1=m_y1;
	*y2=m_y2;
}
void CWireframeGrWnd::SetMagCoords(int x1,int y1,int x2,int y2) 
{
	m_x1=x1;
	m_x2=x2;
	m_y1=y1;
	m_y2=y2;
}

// Redraws only one terrain cell in the wireframe view
void CWireframeGrWnd::DrawTerrainCell(int seg)
{
	grSurface *cur_surf;
	uint16_t *destptr;
	int lightval;
	int i,t,x,y;
	int segx=seg%TERRAIN_WIDTH;
	int segz=seg/TERRAIN_WIDTH;
	
	cur_surf=m_grViewport->lock();
	destptr=(uint16_t*)cur_surf->data();
	int rowsize=cur_surf->rowsize()/2;
	int x1,y1,x2,y2;

	theApp.wireframe_view->GetMagCoords (&x1,&y1,&x2,&y2);

	fix xstep=IntToFix(x2-x1)/cur_surf->width();
	fix ystep=IntToFix(abs(y2-y1))/cur_surf->height();
	
	float cellwidth=1.0/FixToFloat (xstep);
	float cellheight=1.0/FixToFloat (ystep);

	

	int ystart=cellheight*(((TERRAIN_DEPTH-1)-segz)-y1);
	int xstart=cellwidth*(segx-x1);

	cellheight=ceil(cellheight);
	cellwidth=ceil(cellwidth);

	x=segx;
	y=segz;	// flip due to origin difference
	uint16_t fadepixel = 0;

	int bm_handle=GameTextures[Terrain_tex_seg[Terrain_seg[(y*TERRAIN_WIDTH+x)].texseg_index].tex_index].bm_handle;
	lightval=Ubyte_to_float[Terrain_seg[y*TERRAIN_WIDTH+x].l]*(MAX_TEXTURE_SHADES-1);
			
	uint16_t pix;
	
	pix=*bm_data(bm_handle,0);
	// fadepixel=(TexShadeTable16[lightval][pix>>8])+TexShadeTable8[lightval][pix & 0xFF];
	
	if (TerrainSelected[y*TERRAIN_WIDTH+x])
	{
		int red=((fadepixel>>10)&0x1f)<<3;
		int green=((fadepixel >> 5)&0x1f)<<3;
		int blue=(fadepixel & 0x1f)<<3;

		red<<=2;
		green<<=2;
		blue<<=2;

		red=std::min(255,red);
		green=std::min(255,green);
		blue=std::min(255,blue);
					
		fadepixel=GR_RGB16(red,green,blue);
	}


	for (i=0;i<(int)cellheight;i++)
		for (t=0;t<(int)cellwidth;t++)
		{

			destptr[(i+ystart)*rowsize+t+xstart]=fadepixel;
		}
	m_grViewport->unlock();
}
/*

// draws a topographical representation of our terrain in the wireframe window
void CWireframeGrWnd::DrawTerrainWorld(grViewport *vp,vector *view_target,matrix *view_orient,float view_dist)
{
	grSurface *cur_surf;
	uint16_t *destptr;
	int lightval;
	int i,t;
	
	cur_surf=vp->lock();
	destptr=(uint16_t*)cur_surf->data();
	int rowsize=cur_surf->rowsize()/2;
	int x1,y1,x2,y2;

	theApp.wireframe_view->GetMagCoords (&x1,&y1,&x2,&y2);

	fix xstep=IntToFix(x2-x1)/cur_surf->width();
	fix ystep=IntToFix(abs(y2-y1))/cur_surf->height();
	fix u=IntToFix (x1);
	fix v=IntToFix (y1);

	for (i=0;i<cur_surf->height();i++,v+=ystep,u=IntToFix(x1))
		for (t=0;t<cur_surf->width();t++,u+=xstep)
		{
			int x,y;
			x=FixToInt (u);
			y=FixToInt (v);

			y=(TERRAIN_DEPTH-1)-y;	// flip due to origin difference

			uint16_t fadepixel;

			int bm_handle=GameTextures[Terrain_seg[y*TERRAIN_WIDTH+x].tex_index].bm_handle;
			lightval=(Terrain_seg[y*TERRAIN_WIDTH+x].light)*(MAX_TEXTURE_SHADES-1);
					
			uint16_t pix;
			
			pix=*bm_data(bm_handle,0);
			fadepixel=(TexShadeTable16[lightval][pix>>8])+TexShadeTable8[lightval][pix & 0xFF];

			
			if (TerrainSelected[y*TERRAIN_WIDTH+x])
			{
				int red=(fadepixel>>11)<<3;
				int green=((fadepixel >> 5)&0x3f)<<2;
				int blue=(fadepixel & 0x1f)<<3;

				red<<=2;
				green<<=2;
				blue<<=2;

				red=std::min(255,red);
				green=std::min(255,green);
				blue=std::min(255,blue);
					


				fadepixel=GR_RGB16(red,green,blue);
			}


			destptr[i*rowsize+t]=fadepixel;
		}
	vp->unlock();

}*/

// draws a topographical representation of our terrain in the wireframe window
void CWireframeGrWnd::DrawTerrainWorld(grViewport *vp,vector *view_target,matrix *view_orient,float view_dist)
{
	grSurface *cur_surf;
	uint16_t *destptr;
	float lightval;
	int i,t;
	
	cur_surf=vp->lock();
	destptr=(uint16_t*)cur_surf->data();
	int rowsize=cur_surf->rowsize()/2;
	int x1,y1,x2,y2;

	theApp.wireframe_view->GetMagCoords (&x1,&y1,&x2,&y2);

	fix xstep=IntToFix(x2-x1)/cur_surf->width();
	fix ystep=IntToFix(abs(y2-y1))/cur_surf->height();
	fix u=IntToFix (x1);
	fix v=IntToFix (y1);
	
	fix subx,suby;

	for (i=0;i<cur_surf->height();i++,v+=ystep,u=IntToFix(x1))
		for (t=0;t<cur_surf->width();t++,u+=xstep)
		{
			int x,y;
			x=FixToInt (u);
			y=FixToInt (v);

			y=(TERRAIN_DEPTH-1)-y;	// flip due to origin difference

			uint16_t fadepixel;

			int bm_handle=GameTextures[Terrain_tex_seg[Terrain_seg[y*TERRAIN_WIDTH+x].texseg_index].tex_index].bm_handle;
			lightval=Ubyte_to_float[(Terrain_seg[y*TERRAIN_WIDTH+x].l)];
					
			uint16_t pix;
			uint16_t *data=bm_data(bm_handle,0);
			int w=bm_w(bm_handle,0);

			subx=(u & 0xFFFF)*w;
			suby=(v & 0xFFFF)*bm_h(bm_handle,0);
			subx>>=16;
			suby>>=16;
								
			pix=data[suby*w+subx];
			ddgr_color pix32=GR_16_TO_COLOR(pix);

			int pred=(GR_COLOR_RED(pix32)*lightval);
			int pgreen=(GR_COLOR_GREEN(pix32)*lightval);
			int pblue=(GR_COLOR_BLUE(pix32)*lightval);

			fadepixel=GR_RGB16 (pred,pgreen,pblue);
					
						
			if (TerrainSelected[y*TERRAIN_WIDTH+x])
			{
				int red=((fadepixel>>10) & 0x1f)<<3;
				int green=((fadepixel >> 5)&0x1f)<<3;
				int blue=(fadepixel & 0x1f)<<3;

				red<<=2;
				green<<=2;
				blue<<=2;

				red=std::min(255,red);
				green=std::min(255,green);
				blue=std::min(255,blue);
					


				fadepixel=GR_RGB16(red,green,blue);
			}

			if (Terrain_seg[y*TERRAIN_WIDTH+x].objects!=-1)
			{
				object *obj=&Objects[Terrain_seg[y*TERRAIN_WIDTH+x].objects];

				if (obj->type==OBJ_ROBOT)
					fadepixel=GR_RGB16(255,0,0);
				else if (obj->type==OBJ_POWERUP)
					fadepixel=GR_RGB16(0,128,255);
				else if (obj->type==OBJ_PLAYER || obj->type==OBJ_GHOST)
					fadepixel=GR_RGB16(0,255,0);
				else if (obj->type==OBJ_CLUTTER)
					fadepixel=GR_RGB16(255,0,255);
			}

			destptr[i*rowsize+t]=fadepixel;
		}
	vp->unlock();

}

void CWireframeGrWnd::OnRButtonDown(UINT nFlags, CPoint point) 
{
	if (Editor_view_mode==VM_TERRAIN)
	{
		m_x1=0;
		m_y1=0;
		m_x2=TERRAIN_WIDTH;
		m_y2=TERRAIN_DEPTH;

		State_changed=1;
	}
	CWnd::OnRButtonDown(nFlags, point);
}


// Lets the user draw free hand into the topographical map
void DrawIntoTopoMap (int x,int y)
{
	int i,t,segx,segz;

	if (KEY_STATE(KEY_LSHIFT))
	{
		int seg=theApp.wireframe_view->GetCellFromPoint(x,y);
		if (seg<0 || seg>=TERRAIN_WIDTH*TERRAIN_DEPTH)
			Int3();	// get Jason

		

		for (i=-1;i<=1;i++)
		{
			for (t=-1;t<=1;t++)
			{
				segx=seg%TERRAIN_WIDTH;
				segz=seg/TERRAIN_WIDTH;

				if ((segz+i)<0 || segz+i>=TERRAIN_DEPTH)
					continue;
				if ((segx+t)<0 || segx+t>=TERRAIN_WIDTH)
					continue;

				segz+=i; segx+=t;

				Terrain_tex_seg[Terrain_seg[(segz*TERRAIN_WIDTH)+segx].texseg_index].tex_index=D3EditState.texdlg_texture;
				theApp.wireframe_view->DrawTerrainCell ((segz*TERRAIN_WIDTH)+segx);
			}
		}
		theApp.wireframe_view->Invalidate();
	}
}