table.c

这是一个相当棒的Linux下的台球游戏

       }
    glEnd();

    glBegin(GL_TRIANGLES);
       autonormalize_triangle(p[1],p[10],p[0],order);
       autonormalize_triangle(p[2],p[3],p[11],order);

       autonormalize_triangle(p[0],p[10],p[8],order);
       autonormalize_triangle(p[0],p[5],p[1],order);
       autonormalize_triangle(p[0],p[4],p[5],order);
       autonormalize_triangle(p[3],p[9],p[11],order);
       autonormalize_triangle(p[3],p[2],p[6],order);
       autonormalize_triangle(p[3],p[6],p[7],order);
    glEnd();
}


#define TABLETEXCOORD_X(x,y) (-0.7+(y+TABLE_L/2.0)/TABLE_L*2.4-0.2+(x+TABLE_W/2.0)/TABLE_W*0.4)
#define TABLETEXCOORD_Y(x,y) (-0.2+(x+TABLE_W/2.0)/TABLE_W*1.4)

   /* holes-tuch */
void my_HoleTuch( int xfact, int yfact )
{
       int i;
       double x,y;
       double edge_xyoffs;
       edge_xyoffs = HOLE1_R*SQR2-BANDE_D;
//       edge_xyoffs = HOLE1_R*SQR2-BANDE_D;HOLE1_XYOFFS;

       glBegin(GL_TRIANGLES);

       x=-TABLE_W/2.0-HOLE1_XYOFFS+HOLE1_R/SQR2; y=-TABLE_L/2.0-HOLE1_XYOFFS+HOLE1_R/SQR2;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);
       x=-TABLE_W/2.0-BANDE_D; y=-TABLE_L/2.0+edge_xyoffs;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);
       x=-TABLE_W/2.0-BANDE_D*BANDE_D2RATIO; y=-TABLE_L/2.0+edge_xyoffs+BANDE_D*HOLE1_TAN;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);

       x=-TABLE_W/2.0-HOLE1_XYOFFS+HOLE1_R/SQR2; y=-TABLE_L/2.0-HOLE1_XYOFFS+HOLE1_R/SQR2;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);
       x=-TABLE_W/2.0+edge_xyoffs+BANDE_D*HOLE1_TAN; y=-TABLE_L/2.0-BANDE_D*BANDE_D2RATIO;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);
       x=-TABLE_W/2.0+edge_xyoffs; y=-TABLE_L/2.0-BANDE_D;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);

       glEnd();

#define  HOLE1_SEGNR_4 8
       glBegin(GL_TRIANGLE_FAN);
       x=-TABLE_W/2.0-BANDE_D; y=-TABLE_L/2.0+edge_xyoffs;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);
       for(i=0;i<HOLE1_SEGNR_4+1;i++){
           double phi;
           phi=M_PI/4.0+(double)i*M_PI/HOLE1_SEGNR_4/2.0;
           x=-TABLE_W/2.0-HOLE1_XYOFFS+HOLE1_R*cos(phi);
           y=-TABLE_L/2.0-HOLE1_XYOFFS+HOLE1_R*sin(phi);
           x*=xfact; y*=yfact;
           glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
           glNormal3f( 0.0, 0.0, 1.0 );
           glVertex3f(x,y,-BALL_D/2.0);
       }
       glEnd();

       glBegin(GL_TRIANGLE_FAN);
       x=-TABLE_W/2.0+edge_xyoffs; y=-TABLE_L/2.0-BANDE_D;
       x*=xfact; y*=yfact;
       glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
       glNormal3f( 0.0, 0.0, 1.0 );
       glVertex3f(x,y,-BALL_D/2.0);
       for(i=HOLE1_SEGNR_4;i>=0;i--){
           double phi;
           phi=M_PI/4.0+(double)i*M_PI/HOLE1_SEGNR_4/2.0;
           x=-TABLE_W/2.0-HOLE1_XYOFFS+HOLE1_R*sin(phi);
           y=-TABLE_L/2.0-HOLE1_XYOFFS+HOLE1_R*cos(phi);
           x*=xfact; y*=yfact;
           glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
           glNormal3f( 0.0, 0.0, 1.0 );
           glVertex3f(x,y,-BALL_D/2.0);
       }
       glEnd();

       glBegin(GL_QUAD_STRIP);
       for(i=-HOLE1_SEGNR_4;i<HOLE1_SEGNR_4+1;i++){
           double phi;
           phi=M_PI/4.0+(double)i*M_PI/HOLE1_SEGNR_4/2.0;
           x=-TABLE_W/2.0-HOLE1_XYOFFS+HOLE1_R*cos(phi);
           y=-TABLE_L/2.0-HOLE1_XYOFFS+HOLE1_R*sin(phi);
           x*=xfact; y*=yfact;
           glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
           glNormal3f( 0.0, 0.0, 1.0 );
           glVertex3f(x,y,-BALL_D/2.0);
           x=-TABLE_W/2.0-HOLE1_XYOFFS+(HOLE1_R-0.005)*cos(phi);
           y=-TABLE_L/2.0-HOLE1_XYOFFS+(HOLE1_R-0.005)*sin(phi);
           x*=xfact; y*=yfact;
           glTexCoord2f( TABLETEXCOORD_X(x,y), TABLETEXCOORD_Y(x,y) );
           glNormal3f( -cos(phi)*xfact, -sin(phi)*yfact, 0.0 );
           glVertex3f(x,y,-BALL_D/2.0-0.005);
       }
       glEnd();
}


void grayen_color( GLfloat * col )
{
    GLfloat c;
    c=(col[0]+col[1]+col[2])/3.0;
    col[0]=c;
    col[1]=c;
    col[2]=c;
}





int create_table( int reflect_bind, BordersType *borders, int carambol )
{
    static int init = 0;
    static int bumpref_init = 0;
    static int bump_init = 0;
    static int bump_cloth_init = 0;
    static BumpRefType bumpref;
    static BumpRefType bumponly;
    static BumpRefType bumpcloth;
    static int table_obj=-1;
    static int frametexbind=-1;
    static int tabletexbind=-1;
    static int clothtexbind=-1;
    int frametexw,frametexh;
    int tabletexw,tabletexh;
    int clothtexw,clothtexh;
    int depth;
    char * frametexdata;
    char * tabletexdata;
    char * clothtexdata;
    float balld  = BALL_D;
    float tablew = TABLE_W;
    float tablel = TABLE_L;
    float tableh = TABLE_H;
    float bande_d = BANDE_D;
    float cm  =  0.01;  // cm
    double hole_r1,hole_r2, edge_xyoffs;
    GLfloat tab_col_spec[4] = {0.0, 0.0, 0.0, 0.0};
    GLfloat tab_col_diff[4] = {0.05, 0.4, 0.13, 1.0};
    GLfloat tab_col_amb [4];
    GLfloat wood_col_spec[4] = {0.7, 0.7, 0.7, 1.0};
    GLfloat wood_col_spec_null[4] = {0.0, 0.0, 0.0, 1.0};
    GLfloat wood_col_diff[4] = {0.25, 0.08, 0.02, 1.0};
    GLfloat wood_col_diff2[4] = {0.7, 0.7, 0.7, 1.0};
    GLfloat wood_col_diff3[4] = {0.07, 0.07, 0.07, 1.0};
    GLfloat wood_col_amb  [4];
    GLfloat wood_col_amb2 [4];
    GLfloat wood_col_amb3 [4];
    GLfloat wood_col_shin = 100.0;
//    GLfloat dia_col_spec[4] = {1.0, 0.9, 0.4, 1.0};
    GLfloat dia_col_spec[4] = {0.5, 0.5, 0.5, 1.0};
    GLfloat dia_col_diff[4] = {0.8, 0.7, 0.1, 1.0};
    GLfloat dia_col_amb [4];
    GLfloat dia_col_shin = 100.0;
    GLfloat bumpers_col_spec[4] = {1.0, 1.0, 1.0, 1.0};
    GLfloat bumpers_col_diff[4] = {0.3, 0.3, 0.3, 1.0};
    GLfloat bumpers_col_amb [4];
    GLfloat bumpers_col_shin = 100.0;
    GLfloat hole_col_spec[4] = {0.6, 0.6, 0.6, 0.6};
    GLfloat hole_col_diff[4] = {0.2, 0.2, 0.2, 1.0};
    GLfloat hole_col_amb [4];
    GLfloat hole_col_shin = 1000.0;
    GLfloat t_gen_params[] = {8.0,0.0,0.0,0.0};
    GLfloat s_gen_params[] = {0.0,1.0,0.0,0.0};
//    GLfloat s_gen_params2[] = {1.0,0.0,0.0,0.0};
//    GLfloat t_gen_params2[] = {0.0,8.0,0.0,0.0};
    int imax,jmax,i,j,k,l;
    float area_w,area_l;  /* the main area */

    edge_xyoffs = HOLE1_R*SQR2-BANDE_D;

#define TABLE_COLOR   options_table_color
#define DIAMOND_COLOR options_diamond_color
#define FRAME_COLOR   options_frame_color

    tab_col_diff[0]=(double)((TABLE_COLOR>>16) & 0xFF)/255.0;
    tab_col_diff[1]=(double)((TABLE_COLOR>> 8) & 0xFF)/255.0;
    tab_col_diff[2]=(double)((TABLE_COLOR>> 0) & 0xFF)/255.0;
    tab_col_diff[3]=1.0-(double)((TABLE_COLOR>>24) & 0xFF)/255.0;

    dia_col_diff[0]=(double)((DIAMOND_COLOR>>16) & 0xFF)/255.0;
    dia_col_diff[1]=(double)((DIAMOND_COLOR>> 8) & 0xFF)/255.0;
    dia_col_diff[2]=(double)((DIAMOND_COLOR>> 0) & 0xFF)/255.0;
    dia_col_diff[3]=1.0-(double)((DIAMOND_COLOR>>24) & 0xFF)/255.0;

    wood_col_diff[0]=(double)((FRAME_COLOR>>16) & 0xFF)/255.0;
    wood_col_diff[1]=(double)((FRAME_COLOR>> 8) & 0xFF)/255.0;
    wood_col_diff[2]=(double)((FRAME_COLOR>> 0) & 0xFF)/255.0;
    wood_col_diff[3]=1.0-(double)((FRAME_COLOR>>24) & 0xFF)/255.0;

    if(options_rgstereo_on){
        tab_col_diff[0]=0.533;
        tab_col_diff[1]=0.533;
        tab_col_diff[2]=0.533;
        grayen_color(dia_col_diff);
    }

    if( frametexbind > 0 ) glDeleteTextures( 1, &frametexbind );
    if( options_frame_tex ) {
        glGenTextures(1,&frametexbind);
        load_png("table-frame.png",&frametexw,&frametexh,&depth,&frametexdata);
        glBindTexture(GL_TEXTURE_2D,frametexbind);
        gluBuild2DMipmaps(GL_TEXTURE_2D, 3, frametexw, frametexh, GL_RGB,
                          GL_UNSIGNED_BYTE, frametexdata);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, options_tex_min_filter);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, options_tex_mag_filter);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
        free( frametexdata );
    } else {
        frametexbind=0;
    }

    if( tabletexbind > 0 ) glDeleteTextures( 1, &tabletexbind );
    if( options_table_tex ) {
        glGenTextures(1,&tabletexbind);
        load_png("tabletex_fB_256x256.png",&tabletexw,&tabletexh,&depth,&tabletexdata);
//        load_png("cloth.png",&tabletexw,&tabletexh,&depth,&tabletexdata);
//        load_png("table-frame.png",&tabletexw,&tabletexh,&depth,&tabletexdata);
        glBindTexture(GL_TEXTURE_2D,tabletexbind);
        gluBuild2DMipmaps(GL_TEXTURE_2D, 1, tabletexw, tabletexh, GL_LUMINANCE,
                          GL_UNSIGNED_BYTE, tabletexdata);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, options_tex_min_filter);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, options_tex_mag_filter);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
        free( tabletexdata );
    } else {
        tabletexbind=0;
    }

    if( clothtexbind > 0 ) glDeleteTextures( 1, &clothtexbind );
    if( options_cloth_tex ) {
        glGenTextures(1,&clothtexbind);
        load_png("cloth.png",&clothtexw,&clothtexh,&depth,&clothtexdata);
//        load_png("cloth.png",&tabletexw,&tabletexh,&depth,&tabletexdata);
//        load_png("table-frame.png",&tabletexw,&tabletexh,&depth,&tabletexdata);
        glBindTexture(GL_TEXTURE_2D,clothtexbind);
        gluBuild2DMipmaps(GL_TEXTURE_2D, 1, clothtexw, clothtexh, GL_LUMINANCE,
                          GL_UNSIGNED_BYTE, clothtexdata);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, options_tex_min_filter);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, options_tex_mag_filter);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
        free( clothtexdata );
    } else {
        clothtexbind=0;
    }

   for(i=0;i<3;i++) tab_col_amb[i]=tab_col_diff[i]*0.5;
   for(i=0;i<3;i++) dia_col_amb[i]=dia_col_diff[i]*0.5;
   for(i=0;i<3;i++) bumpers_col_amb[i]=bumpers_col_diff[i]*0.5;
   for(i=0;i<3;i++) hole_col_amb[i]=hole_col_diff[i]*0.5;
   for(i=0;i<3;i++) wood_col_amb[i]=wood_col_diff[i]*0.5;
   for(i=0;i<3;i++) wood_col_amb2[i]=wood_col_diff2[i]*0.43;
   for(i=0;i<3;i++) wood_col_amb3[i]=0.0;
//   for(i=0;i<3;i++) dia_col_spec[i]=dia_col_diff[i]*1.0;

   /* initialize bumpref setup */
   if(!carambol){
   if( options_bumpref        &&
       extension_multitexture &&
       extension_cubemap      &&
       extension_rc_NV        &&
       extension_ts_NV        &&
       extension_vp_NV        &&
       !bumpref_init )
   {
       bumpref = bumpref_setup_vp_ts_rc(
                              "bumpref.png", 0.008,  /* bump map */
                              "posx.png", "posy.png", "posz.png", "negx.png", "negy.png", "negz.png", /* cube map */
                              0.00001f,  /* z-shift */
                              1,   /* use HILO normals */
                              1    /* gen tex coords in vertex program */
                             );
       bumpref_init = 1;
   }
   }

   if(options_bumpwood       &&
      extension_multitexture &&
      extension_rc_NV        &&
      extension_vp_NV        &&
      !bump_init ){
       DPRINTF("setting up wood frame bumpmaps\n");
       //bumponly = bump_setup_vp_rc("cloth-col.png",0.02,0);
       bumponly = bump_setup_vp_rc("table-frame.png",0.007,0);
       bump_init = 1;
   }

/*   if(options_bumpwood       &&
      extension_multitexture &&
      extension_rc_NV        &&
      extension_vp_NV        &&
      !bump_cloth_init ){
       DPRINTF("setting up wood frame bumpmaps\n");