摄像漫游(OPENGL)

// baiscobj.cpp: implementation of the baiscobj class. // 学程序编游戏系列丛书 // 唐明理 E_mail: cqtmL@163.com //==================================================================== #include "stdafx.h" #include "baiscobj.h" GLfloat r=0; ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// baiscobj::baiscobj() { g_eye[0]= MAP;// g_eye[2]=-MAP;// g_Angle=0; g_elev=0; LoadT8("aa.BMP",g_cactus[0]); LoadT8("bb.BMP",g_cactus[1]); g_text = gluNewQuadric(); gluQuadricTexture(g_text, GL_TRUE); } baiscobj::~baiscobj() { } void baiscobj::light0() { GLfloat light_position[] = {1.0,10.0,-51.0,10.0}; glLightfv(GL_LIGHT0, GL_POSITION, light_position); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glEnable(GL_DEPTH_TEST); glEnable(GL_COLOR_MATERIAL); } BOOL baiscobj::DisplayScene() { float speed=0.2f; if (KEY_DOWN(VK_SHIFT)) speed =speed*4; if (KEY_DOWN(VK_LEFT)) g_Angle-=speed*2; if (KEY_DOWN(VK_RIGHT)) g_Angle+=speed*2; rad_xz = float (3.13149* g_Angle/180.0f); if (KEY_DOWN(33)) g_elev +=0.2f; if (KEY_DOWN(34)) g_elev -=0.2f; if (g_elev<-100) g_elev =-100; if (g_elev> 100) g_elev = 100; if (KEY_DOWN(VK_UP)) { g_eye[2]+=sin(rad_xz)*speed; g_eye[0]+=cos(rad_xz)*speed; } if (KEY_DOWN(VK_DOWN)) { g_eye[2]-=sin(rad_xz)*speed; g_eye[0]-=cos(rad_xz)*speed; } if (g_eye[0]<-(MAP*2-20)) g_eye[0]= -(MAP*2-20); if (g_eye[0]> (MAP*2-20)) g_eye[0]= (MAP*2-20); if (g_eye[2]<-(MAP*2-20)) g_eye[2]= -(MAP*2-20); if (g_eye[2]> (MAP*2-20)) g_eye[2]= (MAP*2-20); g_eye[1] =1.8; g_look[0] = float(g_eye[0] + 100*cos(rad_xz)); g_look[2] = float(g_eye[2] + 100*sin(rad_xz)); g_look[1] = g_eye[1]; gluLookAt(g_eye[0],g_eye[1],g_eye[2],g_look[0],g_look[1]+g_elev,g_look[2],0.0,1.0,0.0); return TRUE; } GLvoid baiscobj::DrawGround() { glPushAttrib(GL_CURRENT_BIT); glEnable(GL_BLEND); glPushMatrix(); glColor3f(0.5f, 0.7f, 1.0f); glTranslatef(0,0.0f,0); int size0=(int)(MAP*2); glBegin(GL_LINES); for (int x = -size0; x < size0;x+=4) {glVertex3i(x, 0, -size0); glVertex3i(x, 0, size0);} for (int z = -size0; z < size0;z+=4) {glVertex3i(-size0, 0, z); glVertex3i( size0, 0, z);} glEnd(); glPopMatrix(); glDisable(GL_BLEND); glPopAttrib(); } //========================================================================== void baiscobj::picter(float x,float y,float z) {glPushAttrib(GL_CURRENT_BIT); glPushMatrix(); glTranslatef(x,y+0.5f,z); glColor3f(0.0f,1.0f,0.2f); auxSolidCube(1); glTranslatef(0.0f,0.8f,0.0f); glColor3f(0.0f,0.0f,1.0f); auxSolidBox(.2f,1.3f,.2f); glPopMatrix(); glPushMatrix(); glTranslatef(x,y+2.5f,z); glRotatef(r-90,0.0,1.0,0.0); //======================================= glColor3f(1.0f,1.0f,1.0f); glRotatef(45, 1.0, 0.0, 0.0); auxWireCone(1.5,0.6f); //======================================= glRotatef(180, 1.0, 0.0, 0.0); glTranslatef(0.0f,0.0f,-0.7f); auxWireCone(0.2f,2.0f); glColor3f(FRAND,0,0); glTranslatef(0.0f,0.0f,2.0f); auxSolidSphere(0.1f); glPopMatrix(); glPopAttrib(); r+=0.5f;if(r>360) r=0; } void baiscobj::airplane(float x,float y,float z) { glPushMatrix(); glTranslatef(x,y,z); glRotatef(-r, 0.0, 1.0, 0.0); glTranslatef(30,0,0); glRotatef(30, 0.0, 0.0, 1.0); glPushMatrix();// glRotatef(-r*30, 0.0, 0.0, 1.0); glColor3f(0.0, 0.0, 1.0); Box(1.0f,0.1f,0.02f); glPopMatrix(); glColor3f(1.0, 1.0, 1.0); glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, g_cactus[1]);// glTranslatef(0.0f,0.0f,-0.5f); gluSphere(g_text, 0.4f, 8, 8); //============================================= glTranslatef(0.0f,-0.0f,-2); gluCylinder(g_text,0.4,0.4,2.0,8,4); //===================================================== glRotatef(-180, 1.0, 0.0, 0.0); glTranslatef(0.0f,-0.0f,0.0f); gluCylinder(g_text,0.4,0.1,1.5,8,4); //====================================================== glBindTexture(GL_TEXTURE_2D, g_cactus[0]);// glTranslatef(0.0f,-0.8f,1.2f); Box(1.0,0.05f,0.3f); glTranslatef(0.0f,0.1f,0.0f); Box(0.05f,0.6f,0.30f); //====================================================== glTranslatef(0.0f,0.7f,-1.9f); Box(3,0.05f,0.5f); //====================================================== glDisable(GL_TEXTURE_2D); glPopMatrix(); } void baiscobj::Box(float x,float y,float z) { glPushMatrix(); glScalef(x,y,z); glEnable(GL_TEXTURE_2D); glBegin(GL_QUADS); glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);// 前 glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);// 后 glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);// 上 glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);// 下 glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);// 左 glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);// 右 glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f); glEnd(); glDisable(GL_TEXTURE_2D); glPopMatrix(); } bool baiscobj::LoadT8(char *filename, GLuint &texture) { AUX_RGBImageRec *pImage = NULL; pImage = auxDIBImageLoad(filename); if(pImage == NULL) return false; glGenTextures(1, &texture); glBindTexture (GL_TEXTURE_2D,texture); gluBuild2DMipmaps(GL_TEXTURE_2D,4, pImage->sizeX, pImage->sizeY,GL_RGB, GL_UNSIGNED_BYTE,pImage->data); free(pImage->data); free(pImage); return true; }