Thread: the plane passing the moon

Hi ppl;Window section or game section?

in this program ,how can i make the plane pass the moon so it is
blocking the moon rather than moon blocking the plane?

i made 3 regions one for the moon and its effect.
one for the whole window."dont ask me why .it works somehow"
and one for the star section.

i should have used SetWindowExtEx and viewport to make my job easier on logical units but i was lazy to
go back and restart after all this is just a learning program for me to practice on effects in GDI.and i wanted the filling tank to be a region. but
i thought it would conflict with other regions.

i tried to have few more timers with different offsets for different movement but it screwed up the whole timer routin so i just stuck with one.

can u find a way around it?

*note
u can change the volume of water coming out of the pipe by using

"vol+" and it will show the current volume at the bottom of the screen.eventhough the random "lines creating the sea" are kinda
obscuring it.
im attaching a exe zip i hope the thread will accept it .if not u can run the code urself,

cheers!

check this sight out good place for trigonometry and vectors:

http://chortle.ccsu.ctstateu.edu/vec...ctorIndex.html

Code:

/*------------------------------------------------------------
  sia k    feb 17 2002
  ------------------------------------------------------------*/

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define ID_TIMER 1

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    PSTR szCmdLine, int iCmdShow)
{
     static TCHAR szAppName[] = TEXT ("sia0008") ;
     HWND         hwnd ;
     MSG          msg ;
     WNDCLASSEX     wndclass ;
     wndclass.cbSize        = sizeof(WNDCLASSEX);
     wndclass.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC ;
     wndclass.lpfnWndProc   = WndProc ;
     wndclass.cbClsExtra    = 0 ;
     wndclass.cbWndExtra    = 0 ;
     wndclass.hInstance     = hInstance ;
     wndclass.hIcon         = LoadIcon (hInstance, MAKEINTRESOURCE(30)) ;
     wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
     wndclass.hbrBackground = (HBRUSH) GetStockObject (BLACK_BRUSH) ;
     wndclass.lpszMenuName  = szAppName;
     wndclass.lpszClassName = szAppName ;
     wndclass.hIconSm       = LoadIcon (hInstance, MAKEINTRESOURCE(30));
     RegisterClassEx (&wndclass);
     
          
                    
        hwnd = CreateWindow (szAppName,                 
                          TEXT ("sia0008 sara Loves Chocolate"), 
                          WS_OVERLAPPEDWINDOW,       
                          CW_USEDEFAULT,           
                          CW_USEDEFAULT,            
                          CW_USEDEFAULT,           
                          CW_USEDEFAULT,         
                          NULL,                    
                          NULL,                    
                          hInstance,                
                          NULL) ;                     
     
     ShowWindow (hwnd, iCmdShow) ;
     UpdateWindow (hwnd) ;
     
     while (GetMessage (&msg, NULL, 0, 0))
     {
          TranslateMessage (&msg) ;
          DispatchMessage (&msg) ;
     }
     return msg.wParam ;
}
void listdatetime(HWND hwnd, int cyclient,   char *t){
	SYSTEMTIME st;
	HDC hdc;
 static char   a2[70], a3[30], a4[70];
	      hdc = GetDC(hwnd);
          GetLocalTime(&st);
		  GetDateFormat(LOCALE_SYSTEM_DEFAULT, DATE_LONGDATE, &st, NULL, a2, sizeof(a2));
		  SetBkColor(hdc, RGB(0, 0, 0));
		  TextOut(hdc, 0, cyclient - 120, a4, wsprintf(a4, "%s", a2));                  // display time date 
		  TextOut(hdc, 0, cyclient - 100, a3, wsprintf(a3, "%s %2d:%2d:%2d", t,      //function
			  st.wHour, st.wMinute, st.wSecond));
		  ReleaseDC(hwnd, hdc);
}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static     HDC         hdc ;
           PAINTSTRUCT ps ;
static     RECT        rect, rc1, rc2;
static     HBRUSH hbrush;
static	   HPEN  hpen;
char       *t = "Time is";
static char array[50]; 
static  int  x, y, n, m, i, j = 0, p = 20, s = 0, g = 0, a = 0, q, r = 0, v = 70, w = 80;

static int a1[8] = {45, 10, 35, 35, 15, 40, 3, 9};
static    BOOL flip = FALSE, flop = FALSE;
static int  cxclient, cyclient;
          COLORREF c;
static	 POINT point[10] = {35, 50, 30, 30, 20, 50, 15, 30, 0, 30, 5, 0, 10, 20, 35, 15, 60, 30,
		 40, 30};
	 
static	 HRGN hrgn, ergn, frgn ;
     
        	 
	 switch (message)
     {
     case WM_CREATE:
		 
         // PlaySound (TEXT ("sia0008.wav"), NULL, SND_FILENAME | SND_ASYNC) ;
		 hdc = GetDC(hwnd);
		
        
		 SetTimer(hwnd, 1, 100, NULL);
		 ReleaseDC(hwnd, hdc);
          return 0 ;
	 case WM_TIMER:
		
		 flip = !flip;
		 
	    GetClientRect(hwnd, &rc2);
  
		 InvalidateRect(hwnd, NULL, TRUE);
	    

		
		 return 0;
     case WM_SIZE:
		 cxclient = LOWORD (lParam) ; 
		 cyclient = HIWORD (lParam) ;
		 return 0;
          
     case WM_PAINT:
           
		 BeginPaint (hwnd, &ps) ;
	 
		 srand(time(NULL));
		
		frgn =  CreateRectRgn(0, 0, cxclient, 70);

		  SelectObject(hdc, frgn);
		  DeleteObject(frgn);
		  for(g = 0; g < 800; g++){                  //first region the stars
			 x = 0 + rand() % cxclient;
			 y = 0 + rand() % 70;
			 SetPixel(hdc, x, y, RGB(0 + rand() % 255, 255, 255));
		 
		 }
		  hpen = CreatePen(PS_SOLID, 1, RGB(100, 100, 100));
		  SelectObject(hdc, hpen);
		  hbrush = CreateSolidBrush(RGB(136, 136, 136));
		 SelectObject(hdc, hbrush);
		  //GetStockObject(BS_HOLLOW);
		  SetPolyFillMode(hdc, WINDING);
		  Polygon(hdc, point, 10);
	      DeleteObject(hbrush);
		  DeleteObject(hpen);
		  MoveToEx(hdc, a1[1], 20, NULL);
		  LineTo(hdc, a1[0], 20);
		  MoveToEx(hdc, a1[2], 15, NULL);
		  LineTo(hdc, a1[3], 20);
		  
		  hbrush = CreateSolidBrush(RGB(250,250, 0));
		  SelectObject(hdc, hbrush);
		  Ellipse(hdc, a1[4], 20, a1[5], 30);
		  SetRect(&rc1, a1[4], 20, a1[5], 30);
		  SetBkColor(hdc, RGB(250, 250, 0));
		  DrawText(hdc, "sara", -1, &rc1, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
		  DeleteObject(hbrush);
		  
		
		 
		  if(flip == FALSE){
		  hbrush = CreateSolidBrush(RGB(255, 0, 0));
		  SelectObject(hdc, hbrush);                    
		  Ellipse(hdc, a1[6], 5, a1[7], 10);      //beamming light on plane  
		  DeleteObject(hbrush);
		
		 }
        
	if(a <= 160){
    for(q = 0; q <=7; q++)         //line&image incremented on plane
		a1[q] += 5;
    
		  for(q = 0; q < 10; q++)

			  
			  
			point[q].x = point[q].x + 5;
		} 	
	else{

				  for(q = 0; q < 10; q++){
					  
					point[q].x = point[q].x - a * 5;
			  
				   }
         for(q = 0;q <= 7;q++)
			
			 a1[q] = a1[q] - a * 5;      //line&image to orig loc on plane window
        
		  a = 0;
			  }
		      a++;

		 	ergn = CreateEllipticRgn(cxclient - 80, 30, cxclient - 30, 80);    //moon
         SetRect(&rc1, cxclient - 80, 30, cxclient - 30, 80);
		 	hbrush = CreateSolidBrush(RGB(255, 255, 255));
		  SelectObject(hdc, ergn);
		 FillRgn(hdc, ergn, hbrush);
		 SetBkColor(hdc, RGB(255, 255, 255));
		 SetTextColor(hdc, RGB(210, 210, 210));
		
		 DrawText(hdc,TEXT( "@*&*"), -1, &rc1, DT_SINGLELINE | DT_CENTER | DT_VCENTER);  //2nd dark region moon
		 DrawText(hdc, TEXT("**"), -1, &rc1, DT_SINGLELINE | DT_CENTER);
		 
		 DeleteObject(ergn);                         
		 
         for(i = 0; i < 750; i++){
					x = cxclient - 80 + rand() % 50;
					y = 30             + rand() % 50;
					SetPixel(hdc, x, y, RGB(200, 200, 200));
				}
		 hbrush = CreateSolidBrush(RGB(186, 130, 67));
		 SelectObject(hdc, hbrush);
        Ellipse(hdc,cxclient - w, 55,cxclient - v, 65);  //satelite
		
		DeleteObject(hbrush);
		if(w > 20 && v > 20){
			v--;w--;
		}else{
			v = 70;w = 80;
		}
		 
		hrgn = CreateRectRgn(0, 0,cxclient, cyclient);  //make the senior region
         SelectObject(hdc, hrgn);
         DeleteObject(hrgn);
		 hpen = CreatePen(PS_SOLID, 2, RGB(130,130 , 130));
		   SelectObject(hdc, hpen);
		 
		 MoveToEx(hdc, cxclient / 4 + 23, cyclient / 4 - 18, NULL);
		 LineTo(hdc, cxclient / 4 + 23, cyclient / 4);
		SetRect(&rc1, 0, cyclient / 4 - 18, cxclient / 4 + 20, cyclient / 4);
		  hbrush = CreateSolidBrush(RGB(100, 100, 100));
		 
		  FillRect(hdc, &rc1, hbrush);

		  Ellipse(hdc, cxclient / 4, cyclient / 4 - 8, cxclient / 4 + 15, cyclient / 4 + 8);
		  SetTextColor(hdc, RGB(250, 0, 0));
		  
		 
		SetRect(&rc1, cxclient / 6, cyclient / 4 + 60, cxclient / 3 + 20, cyclient - 60); //fill tank
          FillRect(hdc, &rc1, hbrush);;
		
		  hbrush = CreateSolidBrush(RGB(100,100, 100));
		  SelectObject(hdc, hbrush);
		 Ellipse(hdc, cxclient / 6, cyclient / 4 + 65, cxclient / 3 + 20, cyclient / 4 + 55);
		 DeleteObject(hbrush);
		  SetBkColor(hdc, RGB(100, 100, 100));
		  DrawText(hdc, TEXT("THE FILLING TANK"), -1, &rc1, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
		       
		  DeleteObject(hbrush);                         
         
          SetRect(&rect, cxclient / 4, cyclient / 4 - 5, cxclient / 4 + 15, cyclient / 4 + 60);
		  listdatetime(hwnd, cyclient, t);    ////////
		  
          hbrush = CreateSolidBrush(RGB(0, 0, 0));
		  SelectObject(hdc, hbrush);
		  FillRect(hdc, &rect, hbrush);
		  SetBkMode(hdc, OPAQUE);
		  c = RGB(201, 201, 201);
		   for(i = 0; i <= p; i++){
		  x = cxclient / 4 + rand() % 15;
          y = cyclient / 4 - 5 + rand() % 65;
			  
			  SetPixel(hdc, x, y, c);
			  
			 }
		 DeleteObject(hbrush);
	       
		   
		SetRect(&rc1,30, cyclient / 4- 18, 60, cyclient / 4); 
		 
		  Ellipse(hdc, 30, cyclient / 4 - 18, 60, cyclient / 4);
		   
		  SetBkColor(hdc, RGB(0, 0, 0));
		  DrawText(hdc, "vol+", -1, &rc1, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
        SetRect(&rc1, 80, cyclient / 4 - 18, 110, cyclient / 4);
		 
		 
		 
		  Ellipse(hdc, 80, cyclient / 4 - 18, 110, cyclient / 4);
		  DrawText(hdc, "vol-", -1, &rc1, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
		  hbrush = CreateSolidBrush(RGB(0, 0, 230));
        SetRect(&rc1, cxclient / 6, cyclient - 60, cxclient / 3 + 20, (cyclient - 60) - j );//red fill up

		   FillRect(hdc, &rc1, hbrush);
		 
           
           DeleteObject(hpen);
		   DeleteObject(hbrush);
		   
           j++;
		  
		 
		   if(j == 280){
			   j = 0;
			   hbrush = CreateSolidBrush(RGB(100, 100, 100));
			   FillRect(hdc, &rc1, hbrush);
		    DeleteObject(hbrush);
		
			
		   }
	    SetBkColor(hdc, RGB(0, 0, 0));
		wsprintf(array, "The Volume In Tank is %d", p);
		TextOut(hdc,s , cyclient - 18, array, lstrlen(array));

		if(s < 250)
			s++;
		 hpen = CreatePen(PS_SOLID, 1, RGB(0, 0, 250));
		SelectObject(hdc, hpen);

		for(q = 0; q < 450; q++){
			
       
			
         MoveToEx(hdc, 0 + rand() % cxclient, (cyclient - 60) + rand() % 60, NULL);
         LineTo(hdc, 0 + rand() % cxclient + 10, q % 10 == 0 ?(cyclient - 60) : (cyclient - 80) + rand() % 60); 
		 DeleteObject(hpen);
		}
		DeleteObject(hpen);
	  			EndPaint (hwnd, &ps) ;
          return 0 ;
      case  WM_LBUTTONDOWN:
           
		  n = LOWORD (lParam);
		  m = HIWORD (lParam);
		  if(n < 60 && n > 30)
          p += 5;
		  if(n < 110 && n > 80)                       //volume for liquide
		  p -= 5;
		  if(p == 0){
			  KillTimer(hwnd, 1);
		  InvalidateRect(hwnd, NULL, TRUE);
		  }
		  
          return 0;
     case WM_DESTROY:
		
		 KillTimer(hwnd, 1); 
		 DeleteObject(hpen);
		 
		 DeleteObject(hbrush);
          PostQuitMessage (0) ;
		
		 
          return 0 ;
     }
     return DefWindowProc (hwnd, message, wParam, lParam) ;
}