isohex17_2.cpp

来自「一個遊戲教程」· C++ 代码 · 共 425 行

/*****************************************************************************
IsoHex17_1.cpp
Ernest S. Pazera
17AUG2000
Start a WIN32 Application Workspace, add in this file
Requires the following libs:
ddraw.lib, dxguid.lib
Requires the following files:
DDFuncs.h.cpp, GDICanvas.h/cpp, IsoMouseMap.h/cpp,
IsoScroller.h/cpp, IsoTilePlotter.h/cpp, IsoTileWalker.h/cpp
TileSet.h/cpp. IsoHexCore.h, IsoHexDefs.h
*****************************************************************************/

//////////////////////////////////////////////////////////////////////////////
//INCLUDES
//////////////////////////////////////////////////////////////////////////////
#define WIN32_LEAN_AND_MEAN  

#include <windows.h>  
#include "DDFuncs.h"
#include "TileSet.h"
#include "IsoHexCore.h"
#include "IsoRenderer.h"
 

//////////////////////////////////////////////////////////////////////////////
//DEFINES
//////////////////////////////////////////////////////////////////////////////
//name for our window class
#define WINDOWCLASS "ISOHEX17"
//title of the application
#define WINDOWTITLE "IsoHex 17-2"

const int MAPWIDTH=200;
const int MAPHEIGHT=400;

//////////////////////////////////////////////////////////////////////////////
//PROTOTYPES
//////////////////////////////////////////////////////////////////////////////
bool Prog_Init();//game data initalizer
void Prog_Loop();//main game loop
void Prog_Done();//game clean up

//////////////////////////////////////////////////////////////////////////////
//GLOBALS
//////////////////////////////////////////////////////////////////////////////
HINSTANCE hInstMain=NULL;//main application handle
HWND hWndMain=NULL;//handle to our main window

//directdraw
LPDIRECTDRAW7 lpdd=NULL;
LPDIRECTDRAWSURFACE7 lpddsMain=NULL;
LPDIRECTDRAWSURFACE7 lpddsBack=NULL;
LPDIRECTDRAWSURFACE7 lpddsFrame=NULL;

//tilesets
CTileSet tsBack;//background
CTileSet tsShadow;//tree shadow
CTileSet tsTree;//tree foreground
CTileSet tsCursor;//cursor

//isohexcore components
CTilePlotter TilePlotter;//plotter
CTileWalker TileWalker;//walker
CScroller Scroller;//scroller
CMouseMap MouseMap;//mousemap
CRenderer Renderer;//renderer

POINT ptCursor;//keep track of the cursor
POINT ptScroll;//keep track of how quickly we scroll
bool bClick=false;

int iMap[MAPWIDTH][MAPHEIGHT];//map array(0=no tree, 1=tree)

//rendering functionprototype
void RenderFunc(LPDIRECTDRAWSURFACE7 lpddsDst,RECT* rcClip,int xDst,int yDst,int xMap,int yMap);


//////////////////////////////////////////////////////////////////////////////
//WINDOWPROC
//////////////////////////////////////////////////////////////////////////////
LRESULT CALLBACK TheWindowProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
	//which message did we get?
	switch(uMsg)
	{
	case WM_KEYDOWN:
		{
			switch(wParam)
			{
			case VK_ESCAPE:
				{
					DestroyWindow(hWndMain);
					return(0);
				}break;
			}
		}break;
	case WM_LBUTTONDOWN:
		{
			//register a click
			bClick=true;
			return(0);
		}break;
	case WM_MOUSEMOVE:
		{
			//grab mouse x and y
			int x=LOWORD(lParam);
			int y=HIWORD(lParam);

			//reset scrolling speeds to zero
			ptScroll.x=0;
			ptScroll.y=0;

			//left scroll?
			if(x<8) ptScroll.x=x-8;

			//upward scroll?
			if(y<8) ptScroll.y=y-8;

			//right scroll?
			if(x>=632) ptScroll.x=x-632;

			//downward scroll?
			if(y>=472) ptScroll.y=y-472;
		}break;
	case WM_DESTROY://the window is being destroyed
		{

			//tell the application we are quitting
			PostQuitMessage(0);

			//handled message, so return 0
			return(0);

		}break;
	case WM_PAINT://the window needs repainting
		{
			//a variable needed for painting information
			PAINTSTRUCT ps;
			
			//start painting
			HDC hdc=BeginPaint(hwnd,&ps);

			/////////////////////////////
			//painting code would go here
			/////////////////////////////

			//end painting
			EndPaint(hwnd,&ps);
						
			//handled message, so return 0
			return(0);
		}break;
	}

	//pass along any other message to default message handler
	return(DefWindowProc(hwnd,uMsg,wParam,lParam));
}


//////////////////////////////////////////////////////////////////////////////
//WINMAIN
//////////////////////////////////////////////////////////////////////////////
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{
	//assign instance to global variable
	hInstMain=hInstance;

	//create window class
	WNDCLASSEX wcx;

	//set the size of the structure
	wcx.cbSize=sizeof(WNDCLASSEX);

	//class style
	wcx.style=CS_OWNDC | CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;

	//window procedure
	wcx.lpfnWndProc=TheWindowProc;

	//class extra
	wcx.cbClsExtra=0;

	//window extra
	wcx.cbWndExtra=0;

	//application handle
	wcx.hInstance=hInstMain;

	//icon
	wcx.hIcon=LoadIcon(NULL,IDI_APPLICATION);

	//cursor
	wcx.hCursor=LoadCursor(NULL,IDC_ARROW);

	//background color
	wcx.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);

	//menu
	wcx.lpszMenuName=NULL;

	//class name
	wcx.lpszClassName=WINDOWCLASS;

	//small icon
	wcx.hIconSm=NULL;

	//register the window class, return 0 if not successful
	if(!RegisterClassEx(&wcx)) return(0);

	//create main window
	hWndMain=CreateWindowEx(0,WINDOWCLASS,WINDOWTITLE, WS_POPUP | WS_VISIBLE,0,0,320,240,NULL,NULL,hInstMain,NULL);

	//error check
	if(!hWndMain) return(0);

	//if program initialization failed, then return with 0
	if(!Prog_Init()) return(0);

	//message structure
	MSG msg;

	//message pump
	for(;;)	
	{
		//look for a message
		if(PeekMessage(&msg,NULL,0,0,PM_REMOVE))
		{
			//there is a message

			//check that we arent quitting
			if(msg.message==WM_QUIT) break;
			
			//translate message
			TranslateMessage(&msg);

			//dispatch message
			DispatchMessage(&msg);
		}

		//run main game loop
		Prog_Loop();
	}
	
	//clean up program data
	Prog_Done();

	//return the wparam from the WM_QUIT message
	return(msg.wParam);
}

//////////////////////////////////////////////////////////////////////////////
//INITIALIZATION
//////////////////////////////////////////////////////////////////////////////
bool Prog_Init()
{
	//create IDirectDraw object
	lpdd=LPDD_Create(hWndMain,DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN | DDSCL_ALLOWREBOOT);

	//set display mode
	lpdd->SetDisplayMode(640,480,16,0,0);

	//create primary surface
	lpddsMain=LPDDS_CreatePrimary(lpdd,1);

	//get back buffer
	lpddsBack=LPDDS_GetSecondary(lpddsMain);

	//create the frame buffer
	lpddsFrame=LPDDS_CreateOffscreen(lpdd,640,480);

	//load in the mousemap
	MouseMap.Load("MouseMap.bmp");

	//set up the tile plotter
	TilePlotter.SetMapType(ISOMAP_DIAMOND);//diamond mode
	TilePlotter.SetTileSize(MouseMap.GetWidth(),MouseMap.GetHeight());//grab width and height from mousemap

	//set up tile walker to diamond mode
	TileWalker.SetMapType(ISOMAP_DIAMOND);

	//set up screeen space
	RECT rcTemp;
	SetRect(&rcTemp,0,0,640,480);
	Scroller.SetScreenSpace(&rcTemp);

	//load in tiles and cursor
	tsBack.Load(lpdd,"backgroundts.bmp");
	tsShadow.Load(lpdd,"treeshadowts.bmp");
	tsTree.Load(lpdd,"treets.bmp");
	tsCursor.Load(lpdd,"cursor.bmp");

	//grab tile extent from tileset
	CopyRect(&rcTemp,&tsBack.GetTileList()[0].rcDstExt);

	//calculate the worldspace
	Scroller.CalcWorldSpace(&TilePlotter,&rcTemp,MAPWIDTH,MAPHEIGHT);

	//calculate the mousemap reference point
	MouseMap.CalcReferencePoint(&TilePlotter,&rcTemp);

	//calculate anchor space
	Scroller.CalcAnchorSpace();

	//set wrap modes for scroller
	Scroller.SetHWrapMode(WRAPMODE_CLIP);
	Scroller.SetVWrapMode(WRAPMODE_CLIP);

	//set scroller anchor to (0,0)
	Scroller.GetAnchor()->x=0;
	Scroller.GetAnchor()->y=0;

	//attach scrolelr and tilewalker to mousemap
	MouseMap.SetScroller(&Scroller);
	MouseMap.SetTileWalker(&TileWalker);

	//set up the map to a random tilefield
	for(int x=0;x<MAPWIDTH;x++)
	{
		for(int y=0;y<MAPHEIGHT;y++)
		{
			iMap[x][y]=rand()%2;
		}
	}

	//calculate the extent rect
	RECT rcExtent;
	CopyRect(&rcExtent,&tsBack.GetTileList()[0].rcDstExt);//set to background extent
	UnionRect(&rcExtent,&rcExtent,&tsShadow.GetTileList()[0].rcDstExt);//union with shadow extent
	UnionRect(&rcExtent,&rcExtent,&tsTree.GetTileList()[0].rcDstExt);//union with tree extent

	//set up the renderer
	Renderer.SetBackBuffer(lpddsBack);
	Renderer.SetExtentRect(&rcExtent);
	Renderer.SetFrameBuffer(lpddsFrame);
	Renderer.SetMapSize(MAPWIDTH,MAPHEIGHT);
	Renderer.SetMouseMap(&MouseMap);
	Renderer.SetPlotter(&TilePlotter);
	Renderer.SetRenderFunction(RenderFunc);
	Renderer.SetScroller(&Scroller);
	Renderer.SetUpdateRectCount(100);
	Renderer.SetWalker(&TileWalker);

	//update the entire screenspace
	Renderer.AddRect(Scroller.GetScreenSpace());

	//set up the cursor
	ptCursor.x=0;
	ptCursor.y=0;

	return(true);//return success
}

//////////////////////////////////////////////////////////////////////////////
//CLEANUP
//////////////////////////////////////////////////////////////////////////////
void Prog_Done()
{
	//release frame buffer
	LPDDS_Release(&lpddsFrame);

	//release main/back surfaces
	LPDDS_Release(&lpddsMain);

	//release directdraw
	LPDD_Release(&lpdd);
}

//////////////////////////////////////////////////////////////////////////////
//MAIN GAME LOOP
//////////////////////////////////////////////////////////////////////////////
void Prog_Loop()
{
	//grab the mouse position
	POINT ptMouse;
	GetCursorPos(&ptMouse);
	//map the mouse
	ptCursor=MouseMap.MapMouse(ptMouse);

	//clip the cursor to valid map coordinates
	if(ptCursor.x<0) ptCursor.x=0;
	if(ptCursor.y<0) ptCursor.y=0;
	if(ptCursor.x>(MAPWIDTH-1)) ptCursor.x=MAPWIDTH-1;
	if(ptCursor.y>(MAPHEIGHT-1)) ptCursor.y=MAPHEIGHT-1;

	//scroll the map
	Renderer.ScrollFrame(ptScroll.x,ptScroll.y);

	//if a click was registered, add an update tile
	if(bClick)
	{
		Renderer.AddTile(ptCursor.x,ptCursor.y);
		iMap[ptCursor.x][ptCursor.y]=1-iMap[ptCursor.x][ptCursor.y];
	}

	//set click to false
	bClick=false;

	//update the frame
	Renderer.UpdateFrame();

	//plot the cursor
	POINT ptPlot;
	ptPlot=TilePlotter.PlotTile(ptCursor);
	ptPlot=Scroller.WorldToScreen(ptPlot);
	tsCursor.ClipTile(lpddsBack,Scroller.GetScreenSpace(),ptPlot.x,ptPlot.y,0);

	//flip to show the back buffer
	lpddsMain->Flip(0,DDFLIP_WAIT);
}

void RenderFunc(LPDIRECTDRAWSURFACE7 lpddsDst,RECT* rcClip,int xDst,int yDst,int xMap,int yMap)
{
	//put background tile
	tsBack.ClipTile(lpddsDst,rcClip,xDst,yDst,0);
	//check for a tree
	if(iMap[xMap][yMap])
	{
		//put shadow
		tsShadow.ClipTile(lpddsDst,rcClip,xDst,yDst,0);
		//put tree
		tsTree.ClipTile(lpddsDst,rcClip,xDst,yDst,0);
	}
}