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- /*****************************************************************************
- IsoHex20_2.cpp
- Ernest S. Pazera
- 16OCT2000
- Start a WIN32 Application Workspace, add in this file
- Requires GDICanvas.h and GDICanvas.cpp
- *****************************************************************************/
-
- //////////////////////////////////////////////////////////////////////////////
- //INCLUDES
- //////////////////////////////////////////////////////////////////////////////
- #define WIN32_LEAN_AND_MEAN
-
- #include <windows.h>
- #include "GDICanvas.h"
-
- //////////////////////////////////////////////////////////////////////////////
- //DEFINES
- //////////////////////////////////////////////////////////////////////////////
- //name for our window class
- #define WINDOWCLASS "ISOHEX20"
- //title of the application
- #define WINDOWTITLE "IsoHex 20-2"
-
- //////////////////////////////////////////////////////////////////////////////
- //PROTOTYPES
- //////////////////////////////////////////////////////////////////////////////
- bool Prog_Init();//game data initalizer
- void Prog_Loop();//main game loop
- void Prog_Done();//game clean up
- void ShowMap(HDC hdc);//show the map
-
- //////////////////////////////////////////////////////////////////////////////
- //GLOBALS
- //////////////////////////////////////////////////////////////////////////////
- HINSTANCE hInstMain=NULL;//main application handle
- HWND hWndMain=NULL;//handle to our main window
-
- //gdi canvases
- CGDICanvas gdicSquare;//square tile
- CGDICanvas gdicIso;//isometric tile
- CGDICanvas gdicIsoMask;//isometric mask
-
- //which map to show
- bool bShowIso=true;//true if iso, false if square
-
- //////////////////////////////////////////////////////////////////////////////
- //WINDOWPROC
- //////////////////////////////////////////////////////////////////////////////
- LRESULT CALLBACK TheWindowProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
- {
- //which message did we get?
- switch(uMsg)
- {
- case WM_KEYDOWN:
- {
- //if '1', show iso
- if(wParam=='1')
- {
- bShowIso=true;
- InvalidateRect(hWndMain,NULL,TRUE);
- }
- //if '2', show square
- if(wParam=='2')
- {
- bShowIso=false;
- InvalidateRect(hWndMain,NULL,TRUE);
- }
- return(0);//handled, so return 0
- }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
- /////////////////////////////
- ShowMap(hdc);
-
- //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_BORDER | WS_SYSMENU | 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()
- {
- //grab hdc from main window
- HDC hdc=GetDC(hWndMain);
-
- //load the square tile
- gdicSquare.Load(hdc,"IsoHex20_2.bmp");
-
- //create the iso tile
- gdicIso.CreateBlank(hdc,64,32);
- gdicIsoMask.CreateBlank(hdc,64,32);
-
- //scan convert the square image into the iso image
- int tx,ty;//texture coordinates
- int x,y;//pixel coordinates
- int tempx;//for plotting a row of pixels
- COLORREF crColor;
- COLORREF crLeftCol;
- COLORREF crRightCol;
-
- //clear out iso image
- for(x=0;x<64;x++)
- {
- for(y=0;y<32;y++)
- {
- SetPixelV(gdicIso,x,y,RGB(0,0,0));//iso is black
- SetPixelV(gdicIsoMask,x,y,RGB(255,255,255));//mask is black
- }
- }
-
-
- //loop through x texture coords
- for(tx=0;tx<16;tx++)
- {
- //loop through y texture coords
- for(ty=0;ty<16;ty++)
- {
- //grab the color from the texture
- crColor=GetPixel(gdicSquare,tx,ty);
-
- crLeftCol=GetPixel(gdicSquare,(tx+15)%16,(ty+1)%16);
- crRightCol=GetPixel(gdicSquare,(tx+1)%16,(ty+15)%16);
-
- crLeftCol&=RGB(254,254,254);
- crRightCol&=RGB(254,254,254);
-
- crLeftCol/=2;
- crRightCol/=2;
-
- crLeftCol+=((crColor & RGB(254,254,254))/2);
- crRightCol+=((crColor & RGB(254,254,254))/2);
-
- //calculate x and y
- x=30+tx*2-ty*2;
- y=tx+ty;
- //loop through four pixel positions
- for(tempx=x;tempx<(x+4);tempx++)
- {
- if(tempx==x || tempx==(x+3))
- {
- SetPixelV(gdicIsoMask,tempx,y,0);//set to black on mask
- if(tempx==x)
- {
- SetPixelV(gdicIso,tempx,y,crLeftCol);//set color on iso picture
- }
- else
- {
- SetPixelV(gdicIso,tempx,y,crRightCol);//set color on iso picture
- }
- }
- else
- {
- SetPixelV(gdicIso,tempx,y,crColor);//set color on iso picture
- SetPixelV(gdicIsoMask,tempx,y,0);//set to black on mask
- }
- }
- }
- }
-
- //show the map
- ShowMap(hdc);
-
- //release the hdc back to the main window
- ReleaseDC(hWndMain,hdc);
-
- return(true);//return success
- }
-
- //////////////////////////////////////////////////////////////////////////////
- //CLEANUP
- //////////////////////////////////////////////////////////////////////////////
- void Prog_Done()
- {
- }
-
- //////////////////////////////////////////////////////////////////////////////
- //MAIN GAME LOOP
- //////////////////////////////////////////////////////////////////////////////
- void Prog_Loop()
- {
- }
-
- void ShowMap(HDC hdc)
- {
- //plot iso tiles using staggered calculations
- for(int y=0;y<20;y++)
- {
- for(int x=0;x<20;x++)
- {
- //if iso
- if(bShowIso)
- {
- //put mask
- BitBlt(hdc,x*64+(y&1)*32-32,y*16-16,64,32,gdicIsoMask,0,0,SRCAND);
- //put image
- BitBlt(hdc,x*64+(y&1)*32-32,y*16-16,64,32,gdicIso,0,0,SRCINVERT);
- }
- else
- {
- //square
- BitBlt(hdc,x*16,y*16,16,16,gdicSquare,0,0,SRCCOPY);
- }
- }
- }
- }
-