glpuzzle.cxx

flnx 0.17 是做嵌入linux gui 必備工具箱

//
// "$Id: glpuzzle.cxx,v 1.1.1.1 2003/08/07 21:18:42 jasonk Exp $"
//
// OpenGL puzzle demo for the Fast Light Tool Kit (FLTK).
//
// This is a GLUT demo program to demonstrate fltk's GLUT emulation.
// Search for "fltk" to find all the changes
//
// Copyright 1998-1999 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "[e-mail]".
//

// this block added for fltk's distribtion so it will compile w/o OpenGL:
#include <config.h>
#if !HAVE_GL
#include <FL/Fl.H>
#include <FL/fl_message.H>
int main(int, char**) {
  fl_alert("This demo does not work without GL");
  return 1;
}
#else
// end of added block

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <math.h>
#include <FL/glut.H>	// changed for fltk
#include "trackball.c"	// changed from trackball.h for fltk

#define WIDTH 4
#define HEIGHT 5
#define PIECES 10
#define OFFSETX -2
#define OFFSETY -2.5
#define OFFSETZ -0.5

typedef char Config[HEIGHT][WIDTH];

struct puzzle {
  struct puzzle *backptr;
  struct puzzle *solnptr;
  Config pieces;
  struct puzzle *next;
  unsigned hashvalue;
};

#define HASHSIZE 10691

struct puzzlelist {
  struct puzzle *puzzle;
  struct puzzlelist *next;
};

static char convert[PIECES + 1] =
{0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 4};

static unsigned char colors[PIECES + 1][3] =
{
  {0, 0, 0},
  {255, 255, 127},
  {255, 255, 127},
  {255, 255, 127},
  {255, 255, 127},
  {255, 127, 255},
  {255, 127, 255},
  {255, 127, 255},
  {255, 127, 255},
  {255, 127, 127},
  {255, 255, 255},
};

void changeState(void);

static struct puzzle *hashtable[HASHSIZE];
static struct puzzle *startPuzzle;
static struct puzzlelist *puzzles;
static struct puzzlelist *lastentry;

int curX, curY, visible;

#define MOVE_SPEED 0.2
static unsigned char movingPiece;
static float move_x, move_y;
static float curquat[4];
static int doubleBuffer = 1;
static int depth = 1;

static char xsize[PIECES + 1] =
{0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2};
static char ysize[PIECES + 1] =
{0, 1, 1, 1, 1, 2, 2, 2, 2, 1, 2};
static float zsize[PIECES + 1] =
{0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0.6};

static Config startConfig =
{
  {8, 10, 10, 7},
  {8, 10, 10, 7},
  {6, 9, 9, 5},
  {6, 4, 3, 5},
  {2, 0, 0, 1}
};

static Config thePuzzle =
{
  {8, 10, 10, 7},
  {8, 10, 10, 7},
  {6, 9, 9, 5},
  {6, 4, 3, 5},
  {2, 0, 0, 1}
};

static int xadds[4] =
{-1, 0, 1, 0};
static int yadds[4] =
{0, -1, 0, 1};

static long W = 400, H = 300;
static GLint viewport[4];

#define srandom srand
#define random() (rand() >> 2)

unsigned
hash(Config config)
{
  int i, j, value;

  value = 0;
  for (i = 0; i < HEIGHT; i++) {
    for (j = 0; j < WIDTH; j++) {
      value = value + convert[config[i][j]];
      value *= 6;
    }
  }
  return (value);
}

int
solution(Config config)
{
  if (config[4][1] == 10 && config[4][2] == 10)
    return (1);
  return (0);
}

float boxcoords[][3] =
{
  {0.2, 0.2, 0.9},
  {0.8, 0.2, 0.9},
  {0.8, 0.8, 0.9},
  {0.2, 0.8, 0.9},
  {0.2, 0.1, 0.8},
  {0.8, 0.1, 0.8},
  {0.9, 0.2, 0.8},
  {0.9, 0.8, 0.8},
  {0.8, 0.9, 0.8},
  {0.2, 0.9, 0.8},
  {0.1, 0.8, 0.8},
  {0.1, 0.2, 0.8},
  {0.2, 0.1, 0.2},
  {0.8, 0.1, 0.2},
  {0.9, 0.2, 0.2},
  {0.9, 0.8, 0.2},
  {0.8, 0.9, 0.2},
  {0.2, 0.9, 0.2},
  {0.1, 0.8, 0.2},
  {0.1, 0.2, 0.2},
  {0.2, 0.2, 0.1},
  {0.8, 0.2, 0.1},
  {0.8, 0.8, 0.1},
  {0.2, 0.8, 0.1},
};

float boxnormals[][3] =
{
  {0, 0, 1},            /* 0 */
  {0, 1, 0},
  {1, 0, 0},
  {0, 0, -1},
  {0, -1, 0},
  {-1, 0, 0},
  {0.7071, 0.7071, 0.0000},  /* 6 */
  {0.7071, -0.7071, 0.0000},
  {-0.7071, 0.7071, 0.0000},
  {-0.7071, -0.7071, 0.0000},
  {0.7071, 0.0000, 0.7071},  /* 10 */
  {0.7071, 0.0000, -0.7071},
  {-0.7071, 0.0000, 0.7071},
  {-0.7071, 0.0000, -0.7071},
  {0.0000, 0.7071, 0.7071},  /* 14 */
  {0.0000, 0.7071, -0.7071},
  {0.0000, -0.7071, 0.7071},
  {0.0000, -0.7071, -0.7071},
  {0.5774, 0.5774, 0.5774},  /* 18 */
  {0.5774, 0.5774, -0.5774},
  {0.5774, -0.5774, 0.5774},
  {0.5774, -0.5774, -0.5774},
  {-0.5774, 0.5774, 0.5774},
  {-0.5774, 0.5774, -0.5774},
  {-0.5774, -0.5774, 0.5774},
  {-0.5774, -0.5774, -0.5774},
};

int boxfaces[][4] =
{
  {0, 1, 2, 3},         /* 0 */
  {9, 8, 16, 17},
  {6, 14, 15, 7},
  {20, 23, 22, 21},
  {12, 13, 5, 4},
  {19, 11, 10, 18},
  {7, 15, 16, 8},       /* 6 */
  {13, 14, 6, 5},
  {18, 10, 9, 17},
  {19, 12, 4, 11},
  {1, 6, 7, 2},         /* 10 */
  {14, 21, 22, 15},
  {11, 0, 3, 10},
  {20, 19, 18, 23},
  {3, 2, 8, 9},         /* 14 */
  {17, 16, 22, 23},
  {4, 5, 1, 0},
  {20, 21, 13, 12},
  {2, 7, 8, -1},        /* 18 */
  {16, 15, 22, -1},
  {5, 6, 1, -1},
  {13, 21, 14, -1},
  {10, 3, 9, -1},
  {18, 17, 23, -1},
  {11, 4, 0, -1},
  {20, 12, 19, -1},
};

#define NBOXFACES (sizeof(boxfaces)/sizeof(boxfaces[0]))

/* Draw a box.  Bevel as desired. */
void
drawBox(int piece, float xoff, float yoff)
{
  int xlen, ylen;
  int i, k;
  float x, y, z;
  float zlen;
  float *v;

  xlen = xsize[piece];
  ylen = ysize[piece];
  zlen = zsize[piece];

  glColor3ubv(colors[piece]);
  glBegin(GL_QUADS);
  for (i = 0; i < 18; i++) {
    glNormal3fv(boxnormals[i]);
    for (k = 0; k < 4; k++) {
      if (boxfaces[i][k] == -1)
        continue;
      v = boxcoords[boxfaces[i][k]];
      x = v[0] + OFFSETX;
      if (v[0] > 0.5)
        x += xlen - 1;
      y = v[1] + OFFSETY;
      if (v[1] > 0.5)
        y += ylen - 1;
      z = v[2] + OFFSETZ;
      if (v[2] > 0.5)
        z += zlen - 1;
      glVertex3f(xoff + x, yoff + y, z);
    }
  }
  glEnd();
  glBegin(GL_TRIANGLES);
  for (i = 18; i < int(NBOXFACES); i++) {
    glNormal3fv(boxnormals[i]);
    for (k = 0; k < 3; k++) {
      if (boxfaces[i][k] == -1)
        continue;
      v = boxcoords[boxfaces[i][k]];
      x = v[0] + OFFSETX;
      if (v[0] > 0.5)
        x += xlen - 1;
      y = v[1] + OFFSETY;
      if (v[1] > 0.5)
        y += ylen - 1;
      z = v[2] + OFFSETZ;
      if (v[2] > 0.5)
        z += zlen - 1;
      glVertex3f(xoff + x, yoff + y, z);
    }
  }
  glEnd();
}

float containercoords[][3] =
{
  {-0.1, -0.1, 1.0},
  {-0.1, -0.1, -0.1},
  {4.1, -0.1, -0.1},
  {4.1, -0.1, 1.0},
  {1.0, -0.1, 0.6},     /* 4 */
  {3.0, -0.1, 0.6},
  {1.0, -0.1, 0.0},
  {3.0, -0.1, 0.0},
  {1.0, 0.0, 0.0},      /* 8 */
  {3.0, 0.0, 0.0},
  {3.0, 0.0, 0.6},
  {1.0, 0.0, 0.6},
  {0.0, 0.0, 1.0},      /* 12 */
  {4.0, 0.0, 1.0},
  {4.0, 0.0, 0.0},
  {0.0, 0.0, 0.0},
  {0.0, 5.0, 0.0},      /* 16 */
  {0.0, 5.0, 1.0},
  {4.0, 5.0, 1.0},
  {4.0, 5.0, 0.0},
  {-0.1, 5.1, -0.1},    /* 20 */
  {4.1, 5.1, -0.1},
  {4.1, 5.1, 1.0},
  {-0.1, 5.1, 1.0},
};

float containernormals[][3] =
{
  {0, -1, 0},
  {0, -1, 0},
  {0, -1, 0},
  {0, -1, 0},
  {0, -1, 0},
  {0, 1, 0},
  {0, 1, 0},
  {0, 1, 0},
  {1, 0, 0},
  {1, 0, 0},
  {1, 0, 0},
  {-1, 0, 0},
  {-1, 0, 0},
  {-1, 0, 0},
  {0, 1, 0},
  {0, 0, -1},
  {0, 0, -1},
  {0, 0, 1},
  {0, 0, 1},
  {0, 0, 1},
  {0, 0, 1},
  {0, 0, 1},
  {0, 0, 1},
  {0, 0, 1},
};

int containerfaces[][4] =
{
  {1, 6, 4, 0},
  {0, 4, 5, 3},
  {1, 2, 7, 6},
  {7, 2, 3, 5},
  {16, 19, 18, 17},

  {23, 22, 21, 20},
  {12, 11, 8, 15},
  {10, 13, 14, 9},

  {15, 16, 17, 12},
  {2, 21, 22, 3},
  {6, 8, 11, 4},

  {1, 0, 23, 20},
  {14, 13, 18, 19},
  {9, 7, 5, 10},

  {12, 13, 10, 11},

  {1, 20, 21, 2},
  {4, 11, 10, 5},

  {15, 8, 19, 16},
  {19, 8, 9, 14},
  {8, 6, 7, 9},
  {0, 3, 13, 12},
  {13, 3, 22, 18},
  {18, 22, 23, 17},
  {17, 23, 0, 12},
};

#define NCONTFACES (sizeof(containerfaces)/sizeof(containerfaces[0]))

/* Draw the container */
void
drawContainer(void)
{
  int i, k;
  float *v;

  /* Y is reversed here because the model has it reversed */

  /* Arbitrary bright wood-like color */
  glColor3ub(209, 103, 23);
  glBegin(GL_QUADS);
  for (i = 0; i < int(NCONTFACES); i++) {
    v = containernormals[i];
    glNormal3f(v[0], -v[1], v[2]);
    for (k = 3; k >= 0; k--) {
      v = containercoords[containerfaces[i][k]];
      glVertex3f(v[0] + OFFSETX, -(v[1] + OFFSETY), v[2] + OFFSETZ);
    }
  }
  glEnd();
}

void
drawAll(void)
{
  int i, j;
  int piece;
  char done[PIECES + 1];
  float m[4][4];

  build_rotmatrix(m, curquat);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  glTranslatef(0, 0, -10);
  glMultMatrixf(&(m[0][0]));
  glRotatef(180, 0, 0, 1);

  if (depth) {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  } else {
    glClear(GL_COLOR_BUFFER_BIT);
  }
  for (i = 1; i <= PIECES; i++) {
    done[i] = 0;
  }
  glLoadName(0);
  drawContainer();
  for (i = 0; i < HEIGHT; i++) {
    for (j = 0; j < WIDTH; j++) {
      piece = thePuzzle[i][j];
      if (piece == 0)
        continue;
      if (done[piece])
        continue;
      done[piece] = 1;
      glLoadName(piece);
      if (piece == movingPiece) {
        drawBox(piece, move_x, move_y);
      } else {
        drawBox(piece, j, i);
      }
    }
  }
}

void
redraw(void)
{
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(45, viewport[2]*1.0/viewport[3], 0.1, 100.0);

  drawAll();

  if (doubleBuffer)
    glutSwapBuffers();
  else
    glFinish();
}

void
solidifyChain(struct puzzle *puzzle)
{
  int i;
  char buf[256];

  i = 0;
  while (puzzle->backptr) {
    i++;