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main.cpp File Reference

#include <windows.h>
#include "shared.h"
#include "general.h"
#include "object.h"
#include "camera.h"
#include "vector.h"
#include "vertex.h"
#include "quat.h"
#include "matrix.h"
#include "texture.h"
#include "locmath.h"
#include "polygon.h"
#include "collision.h"
#include "glfont.h"
#include "flare.h"
#include "console.h"
#include "mmgr.h"
#include "log.h"
#include "selection.h"
#include "resource.rh"

Go to the source code of this file.

Functions
void	InitGL (int Width, int Height)
void	ReSizeGLScene (int Width, int Height)
void	DrawGLScene (void)
LRESULT CALLBACK	WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
int WINAPI	WinMain (HINSTANCE hInstance, HINSTANCE, LPSTR, int)
Variables
int	selectedPolygon = -1
int	MouseX
int	MouseY
int	g_iMouseLastX
int	g_iMouseLastY
int	g_iMouseDeltaX
int	g_iMouseDeltaY
int	g_bLeftMouseDrag
int	g_bRightMouseDrag
HGLRC	hRC
HDC	hDC
HWND	hWnd
RECT	screen
PAINTSTRUCT	ps
float	pi = 3.141592
float	radian = pi / 180
float	epsilon = 0.05
bool	key [256]
bool	released_key [256]
int	currentCamera = 0
int	numCameras = 4
float	step = 5.0
float	lasttime
float	multiplier
const int	average = 10
float	lastmultiplier [average]
int	fps
int	GL_LIGHT [8] = {GL_LIGHT0, GL_LIGHT1, GL_LIGHT2, GL_LIGHT3, GL_LIGHT4, GL_LIGHT5, GL_LIGHT6, GL_LIGHT7}
int	currentLight = 0
int	numLights = 0
POLYGON *	polygon = new POLYGON[12]
TEXTURE *	texture = new TEXTURE[8]
CAMERA *	camera = new CAMERA[numCameras + 1]
CAMERA	LastCam
LIGHT *	light = new LIGHT[numLights + 1]
float	lightColor [3] = {1.0, 1.0, 1.0}
int	DialogInUse = 0
int	testint
float	testfloat
char	teststring [64]
GLFONT	myFont
float	SunPosition [3]

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Function Documentation

void DrawGLScene (  void    )

Definition at line 116 of file main.cpp. References LIGHT::Apply(), CheckForCollision(), currentCamera, DrawCone(), DrawCube(), DrawLensFlare(), DrawSkybox(), DrawSphere(), DrawTerrain(), CollisionPacket::eRadius, fps, glFontBegin(), glFontEnd(), glFontTextOut(), numLights, OBJECT::Position, selectedPolygon, CollisionPacket::sourcePoint, CollisionPacket::velocity, VECTOR::x, VECTOR::y, and VECTOR::z. Referenced by WinMain(). { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); LastCam = camera[currentCamera]; camera[currentCamera].Update(); CollisionPacket cp; cp.eRadius.x = 1.0; cp.eRadius.y = 1.0; cp.eRadius.z = 1.0; cp.sourcePoint.x = LastCam.Position.x; cp.sourcePoint.y = LastCam.Position.y; cp.sourcePoint.z = LastCam.Position.z; cp.velocity.x = camera[currentCamera].Position.x - LastCam.Position.x; cp.velocity.y = camera[currentCamera].Position.y - LastCam.Position.y; cp.velocity.z = camera[currentCamera].Position.z - LastCam.Position.z; CheckForCollision(polygon, &camera[currentCamera].Position, &cp); camera[currentCamera].Apply(); camera[currentCamera].Delta_x = 0.0; // Clear camera rotation deltas camera[currentCamera].Delta_y = 0.0; camera[currentCamera].Delta_z = 0.0; int loop; for(loop = 0; loop <= numLights; loop++) light[loop].Apply(); DrawSkybox(camera, texture); DrawCube(polygon, texture); DrawCone(); DrawSphere(); DrawTerrain(texture); DrawLensFlare(); // Draw the lens flare after all other objects // Draw text glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glDisable(GL_LIGHTING); glColor3f(0.0, 1.0, 0.0); glEnable(GL_BLEND); glDisable(GL_DEPTH_TEST); glPushMatrix(); glLoadIdentity(); glFontBegin(&myFont); char text[256]; glFontTextOut("Tutorial #22", -37, 27, -70); sprintf(text, "FPS = %d", fps); glFontTextOut(text, -52, 34, -100); glFontTextOut("Press R to change the lens flare", -52, 30, -100); glFontTextOut("Click and hold left mouse button to rotate the camera", -52, 26, -100); glFontTextOut("Double click the left mouse button on the cube to select a polygon", -52, 22, -100); sprintf(text, "Currently selected polygon = %d", selectedPolygon); glFontTextOut(text, -52, 18, -100); glFontEnd(); glPopMatrix(); glEnable(GL_DEPTH_TEST); glDisable(GL_BLEND); glEnable(GL_LIGHTING); }

void InitGL (  int    Width, int    Height )

Definition at line 97 of file main.cpp. References glFontCreate(), InitializeLensFlare(), SetGLCamera(), SetGLLighting(), SetGLMaterial(), SetGLProperties(), SetGLTexture(), SetGLView(), SetGLWorld(), and SunPosition. Referenced by WndProc(). { glFeedbackBuffer(4, GL_3D, SunPosition); SetGLProperties(); SetGLMaterial(); SetGLView(Width, Height); SetGLLighting(); SetGLWorld(polygon); SetGLTexture(texture); SetGLCamera(camera); glFontCreate(&myFont, "roman.glf", 200); InitializeLensFlare(); }

void ReSizeGLScene (  int    Width, int    Height )

Definition at line 111 of file main.cpp. References SetGLView(). Referenced by WndProc(). { SetGLView(Width, Height); }

int WINAPI WinMain (  HINSTANCE    hInstance, HINSTANCE   , LPSTR   , int    )

Definition at line 373 of file main.cpp. References average, currentCamera, currentLight, DialogInUse, DrawGLScene(), FALSE, GetTimePassed(), hDC, hRC, hWnd, key, lastmultiplier, lasttime, multiplier, numCameras, numLights, released_key, ResetLensFlare(), screen, step, TRUE, and WndProc(). { MSG msg; WNDCLASSEX wc; GetWindowRect(GetDesktopWindow(), &screen); wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_SAVEBITS; wc.lpfnWndProc = (WNDPROC) WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MYICON)); wc.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MYICON)); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = NULL; wc.lpszMenuName = NULL; wc.lpszClassName = "OpenGL WinClass"; if(!RegisterClassEx(&wc)) { MessageBox(NULL,"Failed To Register The Window Class.","Error",MB_OK|MB_ICONERROR); return FALSE; } hWnd = CreateWindowEx( WS_EX_LEFT, "OpenGL WinClass", "OpenGL & Win32 Tutorial No.7", WS_MAXIMIZE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_POPUPWINDOW | WS_VISIBLE, 0, 0, screen.right, screen.bottom, NULL, NULL, hInstance, NULL); if(!hWnd) { MessageBox(NULL,"Window Creation Error.","Error",MB_OK|MB_ICONERROR); return FALSE; } DEVMODE dmScreenSettings; memset(&dmScreenSettings, 0, sizeof(DEVMODE)); dmScreenSettings.dmSize = sizeof(DEVMODE); dmScreenSettings.dmPelsWidth = screen.right; dmScreenSettings.dmPelsHeight = screen.bottom; dmScreenSettings.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT; ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN); // ShowWindow(hWnd, SW_HIDE); // if(DialogBox(hInstance, "NAMEOFDLG", hWnd, (DLGPROC)NameOfProc) == IDOK) // calls the initialization dialog // { ShowWindow(hWnd, SW_SHOW); UpdateWindow(hWnd); SetFocus(hWnd); wglMakeCurrent(hDC,hRC); SetCursorPos((int)(screen.right * 0.5), (int)(screen.bottom * 0.5)); // ShowCursor(0); // } // else // SendMessage(hWnd, WM_CLOSE, 0, 0); while (1) { while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) { if (GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } else { return TRUE; } } if(!DialogInUse) { DrawGLScene(); glFlush(); SwapBuffers(hDC); } multiplier = GetTimePassed(lasttime, average, lastmultiplier); camera[currentCamera].Multiplier = multiplier; light[currentLight].Multiplier = multiplier; if (key['C'] && released_key['C'] == 0) { if (currentCamera < numCameras) currentCamera++; else currentCamera = 0; released_key['C'] = 1; } if (!key['C']) released_key['C'] = 0; if (key['R'] && released_key['R'] == 0) { ResetLensFlare(); released_key['R'] = 1; } if (!key['R']) released_key['R'] = 0; if (key['L'] && released_key['L'] == 0) { if (currentLight < numLights) currentLight++; else currentLight = 0; released_key['L'] = 1; } if (!key['L']) released_key['L'] = 0; /* if (key['I'] && released_key['I'] == 0) { DialogInUse = 1; lightColor[0] = light[currentLight].Ambient[0]; lightColor[1] = light[currentLight].Ambient[1]; lightColor[2] = light[currentLight].Ambient[2]; ShowCursor(1); GetLightColor(); key['I'] = 0; ShowCursor(0); SetCursorPos((int)(screen.right * 0.5), (int)(screen.bottom * 0.5)); light[currentLight].Ambient[0] = lightColor[0]; light[currentLight].Ambient[1] = lightColor[1]; light[currentLight].Ambient[2] = lightColor[2]; light[currentLight].Update(); DialogInUse = 0; } if (!key['I']) released_key['I'] = 0; if (key['O'] && released_key['O'] == 0) { DialogInUse = 2; lightColor[0] = light[currentLight].Diffuse[0]; lightColor[1] = light[currentLight].Diffuse[1]; lightColor[2] = light[currentLight].Diffuse[2]; ShowCursor(1); GetLightColor(); key['O'] = 0; ShowCursor(0); SetCursorPos((int)(screen.right * 0.5), (int)(screen.bottom * 0.5)); light[currentLight].Diffuse[0] = lightColor[0]; light[currentLight].Diffuse[1] = lightColor[1]; light[currentLight].Diffuse[2] = lightColor[2]; light[currentLight].Update(); DialogInUse = 0; } if (!key['O']) released_key['O'] = 0; if (key['P'] && released_key['P'] == 0) { DialogInUse = 3; lightColor[0] = light[currentLight].Specular[0]; lightColor[1] = light[currentLight].Specular[1]; lightColor[2] = light[currentLight].Specular[2]; ShowCursor(1); GetLightColor(); key['P'] = 0; ShowCursor(0); SetCursorPos((int)(screen.right * 0.5), (int)(screen.bottom * 0.5)); light[currentLight].Specular[0] = lightColor[0]; light[currentLight].Specular[1] = lightColor[1]; light[currentLight].Specular[2] = lightColor[2]; light[currentLight].Update(); DialogInUse = 0; } */ if (!key['P']) released_key['P'] = 0; if (key['1']) { step = 1.0; } if (key['2']) { step = 2.0; } if (key['3']) { step = 3.0; } if (key['4']) { step = 4.0; } if (key['5']) { step = 5.0; } if (key['6']) { step = 6.0; } if (key['7']) { step = 7.0; } if (key['8']) { step = 8.0; } if (key['9']) { step = 9.0; } if (key['0']) { step = 10.0; } if (key[VK_NUMPAD6]) { light[currentLight].Movement_x += step; } if (key[VK_NUMPAD4]) { light[currentLight].Movement_x -= step; } if (key[VK_NUMPAD2]) { light[currentLight].Movement_z += step; } if (key[VK_NUMPAD8]) { light[currentLight].Movement_z -= step; } if (key[VK_NUMPAD7]) { light[currentLight].Movement_y += step; } if (key[VK_NUMPAD9]) { light[currentLight].Movement_y -= step; } if (key[VK_NUMPAD5] && released_key[VK_NUMPAD5] == 0) { if (light[currentLight].Positional == FALSE) light[currentLight].Positional = TRUE; else light[currentLight].Positional = FALSE; released_key[VK_NUMPAD5] = 1; } if (!key[VK_NUMPAD5]) released_key[VK_NUMPAD5] = 0; if (key[VK_RIGHT]) { camera[currentCamera].Movement_x += step; } if (key[VK_LEFT]) { camera[currentCamera].Movement_x -= step; } if (key[VK_DOWN]) { camera[currentCamera].Movement_z += step; } if (key[VK_UP]) { camera[currentCamera].Movement_z -= step; } if (key[VK_PRIOR]) { camera[currentCamera].Movement_y += step; } if (key[VK_NEXT]) { camera[currentCamera].Movement_y -= step; } if (key[VK_SPACE]) { camera[currentCamera].Reset(); } if (key[VK_ESCAPE] || key['Q']) SendMessage(hWnd,WM_CLOSE,0,0); } }

LRESULT CALLBACK WndProc (  HWND    hWnd, UINT    message, WPARAM    wParam, LPARAM    lParam )

Definition at line 181 of file main.cpp. References CleanupLensFlare(), currentCamera, FALSE, g_bLeftMouseDrag, g_bRightMouseDrag, g_iMouseDeltaX, g_iMouseDeltaY, g_iMouseLastX, g_iMouseLastY, hDC, hRC, hWnd, InitGL(), key, MouseX, MouseY, ReSizeGLScene(), screen, selectedPolygon, SelectPolygon(), step, and TRUE. Referenced by WinMain(). { GLuint PixelFormat; static PIXELFORMATDESCRIPTOR pfd= { sizeof(PIXELFORMATDESCRIPTOR), 1, PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, PFD_TYPE_RGBA, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, PFD_MAIN_PLANE, 0, 0, 0, 0 }; switch (message) { // (NEW) SelectPolygon function added to selection.cpp case WM_LBUTTONDBLCLK: { int result; result = SelectPolygon(hWnd, polygon, 12, LOWORD(lParam), HIWORD(lParam)); if (result > -1) selectedPolygon = result; } break; case WM_CREATE: hDC = GetDC(hWnd); PixelFormat = ChoosePixelFormat(hDC, &pfd); if (!PixelFormat) { MessageBox(NULL,"Can't find a suitable PixelFormat.","Error",MB_OK|MB_ICONERROR); PostQuitMessage(0); break; } if(!SetPixelFormat(hDC,PixelFormat,&pfd)) { MessageBox(NULL,"Can't set the PixelFormat.","Error",MB_OK|MB_ICONERROR); PostQuitMessage(0); break; } hRC = wglCreateContext(hDC); if(!hRC) { MessageBox(NULL,"Can't create a GL Rendering Context.","Error",MB_OK|MB_ICONERROR); PostQuitMessage(0); break; } if(!wglMakeCurrent(hDC, hRC)) { MessageBox(NULL,"Can't activate the GL Rendering Context.","Error",MB_OK|MB_ICONERROR); PostQuitMessage(0); break; } InitGL(screen.right, screen.bottom); break; case WM_SYSCOMMAND: { switch (wParam) { case SC_SCREENSAVE: case SC_MONITORPOWER: return 0; } break; } /* if (DialogInUse) { case WM_PAINT: BeginPaint(hWnd,&ps); DrawGLScene(); glFlush(); SwapBuffers(hDC); EndPaint(hWnd,&ps); break; } */ case WM_DESTROY: case WM_CLOSE: delete[] texture; delete[] polygon; delete[] camera; delete[] light; CleanupLensFlare(); ChangeDisplaySettings(NULL, 0); wglMakeCurrent(hDC,NULL); wglDeleteContext(hRC); ReleaseDC(hWnd,hDC); PostQuitMessage(0); break; case WM_KEYDOWN: key[wParam] = TRUE; break; case WM_KEYUP: key[wParam] = FALSE; break; case WM_SIZE: SetCursorPos((int)(screen.right * 0.5), (int)(screen.bottom * 0.5)); ReSizeGLScene(LOWORD(lParam),HIWORD(lParam)); break; case WM_MOUSEMOVE: { MouseX = LOWORD(lParam); MouseY = HIWORD(lParam); g_iMouseDeltaX = MouseX - g_iMouseLastX; // Get mouse deltas g_iMouseDeltaY = MouseY - g_iMouseLastY; // Get mouse deltas g_iMouseLastX = MouseX; // Set new last mouse position g_iMouseLastY = MouseY; // Set new last mouse position if(g_bLeftMouseDrag) // If mouse flag set { camera[currentCamera].Delta_x = (float)g_iMouseDeltaY * 15.0; camera[currentCamera].Delta_y = (float)g_iMouseDeltaX * 15.0; } if(g_bRightMouseDrag) // If mouse flag set { if (fabs(g_iMouseDeltaX) > fabs(g_iMouseDeltaY)) camera[currentCamera].Delta_z += (float)g_iMouseDeltaX * 10.0; else camera[currentCamera].Movement_z += (float)g_iMouseDeltaY * step; } } break; case WM_LBUTTONDOWN: { g_bLeftMouseDrag = 1; // Set mouse flag g_iMouseLastX = LOWORD(lParam); g_iMouseLastY = HIWORD(lParam); SetCapture(hWnd); // Capture the mouse } break; case WM_RBUTTONDOWN: { g_bRightMouseDrag = 1; // Set mouse flag g_iMouseLastX = LOWORD(lParam); // Get mouse position g_iMouseLastY = HIWORD(lParam); SetCapture(hWnd); // Capture the mouse } break; case WM_LBUTTONUP: { g_bLeftMouseDrag = 0; // Clear mouse flag ReleaseCapture(); // Release the mouse capture camera[currentCamera].Delta_x = 0.0; // Clear camera rotation deltas camera[currentCamera].Delta_y = 0.0; } break; case WM_RBUTTONUP: { g_bRightMouseDrag = 0; // Clear mouse flag ReleaseCapture(); // Release the mouse capture camera[currentCamera].Delta_z = 0.0; // Clear camera rotation deltas } break; default: return (DefWindowProc(hWnd, message, wParam, lParam)); } return (0); }

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Variable Documentation

const int average = 10

Definition at line 62 of file main.cpp. Referenced by GetTimePassed(), and WinMain().

CAMERA* camera = new CAMERA[numCameras + 1]

Definition at line 78 of file main.cpp.

int currentCamera = 0

Definition at line 55 of file main.cpp. Referenced by DrawGLScene(), SelectPolygon(), WinMain(), and WndProc().

int currentLight = 0

Definition at line 68 of file main.cpp. Referenced by DrawLightSphere(), and WinMain().

int DialogInUse = 0

Definition at line 86 of file main.cpp. Referenced by ColorDialogHook(), and WinMain().

float epsilon = 0.05

Definition at line 48 of file main.cpp.

int fps

Definition at line 64 of file main.cpp. Referenced by DrawGLScene(), and GetTimePassed().

int g_bLeftMouseDrag

Definition at line 35 of file main.cpp. Referenced by WndProc().

int g_bRightMouseDrag

Definition at line 36 of file main.cpp. Referenced by WndProc().

int g_iMouseDeltaX

Definition at line 33 of file main.cpp. Referenced by WndProc().

int g_iMouseDeltaY

Definition at line 34 of file main.cpp. Referenced by WndProc().

int g_iMouseLastX

Definition at line 31 of file main.cpp. Referenced by WndProc().

int g_iMouseLastY

Definition at line 32 of file main.cpp. Referenced by WndProc().

int GL_LIGHT[8] = {GL_LIGHT0, GL_LIGHT1, GL_LIGHT2, GL_LIGHT3, GL_LIGHT4, GL_LIGHT5, GL_LIGHT6, GL_LIGHT7}

Definition at line 67 of file main.cpp.

HDC hDC [static]

Definition at line 40 of file main.cpp. Referenced by WinMain(), and WndProc().

HGLRC hRC [static]

Definition at line 39 of file main.cpp. Referenced by WinMain(), and WndProc().

HWND hWnd

Definition at line 41 of file main.cpp. Referenced by GetLightColor(), WinMain(), and WndProc().

bool key[256]

Definition at line 51 of file main.cpp. Referenced by WinMain(), and WndProc().

CAMERA LastCam

Definition at line 79 of file main.cpp.

float lastmultiplier[average]

Definition at line 63 of file main.cpp. Referenced by GetTimePassed(), and WinMain().

float lasttime

Definition at line 60 of file main.cpp. Referenced by GetTimePassed(), and WinMain().

LIGHT* light = new LIGHT[numLights + 1]

Definition at line 82 of file main.cpp.

float lightColor[3] = {1.0, 1.0, 1.0}

Definition at line 83 of file main.cpp. Referenced by GetLightColor().

int MouseX

Definition at line 29 of file main.cpp. Referenced by SelectPolygon(), and WndProc().

int MouseY

Definition at line 30 of file main.cpp. Referenced by SelectPolygon(), and WndProc().

float multiplier

Definition at line 61 of file main.cpp. Referenced by GetTimePassed(), and WinMain().

GLFONT myFont

Definition at line 92 of file main.cpp.

int numCameras = 4

Definition at line 56 of file main.cpp. Referenced by SetGLCamera(), and WinMain().

int numLights = 0

Definition at line 69 of file main.cpp. Referenced by DrawGLScene(), SetGLLighting(), and WinMain().

float pi = 3.141592

Definition at line 46 of file main.cpp. Referenced by OBJECT::GetXUnit(), OBJECT::GetYUnit(), OBJECT::MoveX(), and OBJECT::MoveY().

POLYGON* polygon = new POLYGON[12]

Definition at line 72 of file main.cpp. Referenced by CheckForCollision(), DrawCube(), and SetGLWorld().

PAINTSTRUCT ps

Definition at line 43 of file main.cpp.

float radian = pi / 180

Definition at line 47 of file main.cpp. Referenced by OBJECT::Rotate().

bool released_key[256]

Definition at line 52 of file main.cpp. Referenced by WinMain().

RECT screen

Definition at line 42 of file main.cpp. Referenced by DrawLensFlare(), InitializeLensFlare(), WinMain(), and WndProc().

int selectedPolygon = -1

Definition at line 26 of file main.cpp. Referenced by DrawCube(), DrawGLScene(), and WndProc().

float step = 5.0

Definition at line 57 of file main.cpp. Referenced by WinMain(), and WndProc().

float SunPosition[3]

Definition at line 95 of file main.cpp. Referenced by DrawLensFlare(), InitGL(), and InitializeLensFlare().

float testfloat

Definition at line 88 of file main.cpp.

int testint

Definition at line 87 of file main.cpp.

char teststring[64]

Definition at line 89 of file main.cpp.

TEXTURE* texture = new TEXTURE[8]

Definition at line 75 of file main.cpp.

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