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/*
* CS 453 - Final project : An OpenGL version of the pegboard game IQ
* Due : June 5, 1997
* Author : Kiri Wagstaff
*
* File : game.c
* Description : All the routines to actually play the game.
*
*/
#include "gliq.h"
int playdone=0;
void playgame(void);
void drawquit(float x, float y, float r1, float r2);
int legalmove(void);
int canmove(int peg);
int movesexist(void);
void playgame(void)
{
int height = glutGet(GLUT_WINDOW_HEIGHT);
int width = glutGet(GLUT_WINDOW_WIDTH);
/* Draw the quit button */
drawquit(7.0, 9.0, 0.4, 1.0);
/* Quit */
#if 0
// glColor3f(1.0, 1.0, 1.0); /* white */
// text(0.78*width, 0.88*height, 0.1*height, "Quit");
#endif
/* Draw the current scores */
/* Draw the total # of pegs */
glPushMatrix();
glColor3f(1.0, 1.0, 0.0); /* yellow */
glTranslatef(-7.8, 8.8, 0.0);
drawpeg();
text(0.1*width, 0.9*height, 0.07*height, ": %02d", pegs);
glPopMatrix();
if (playdone)
text(0.2*glutGet(GLUT_WINDOW_WIDTH),
0.75*glutGet(GLUT_WINDOW_HEIGHT),
0.08*glutGet(GLUT_WINDOW_HEIGHT),
"No moves left.");
/* do the trackball rotation. */
glPushMatrix();
glRotatef(45.0, 1.0, 0.0, 0.0);
tbMatrix();
drawboard();
drawpegs();
glPopMatrix();
}
int canmove(int peg)
{
int i, j;
if (peg == 0)
return 0;
i = (peg-1)/BOARDSIZE;
j = (peg-1)%BOARDSIZE;
if ((i-2>0) && (filled[i-1][j]==FULL) && (filled[i-2][j]==EMPTY))
return 1;
else if ((i+2<BOARDSIZE) &&
(filled[i+1][j]==FULL) && (filled[i+2][j]==EMPTY))
return 1;
else if ((j-2>0) && (filled[i][j-1]==FULL) && (filled[i][j-2]==EMPTY))
return 1;
else if ((j+2<BOARDSIZE) &&
(filled[i][j+1]==FULL) && (filled[i][j+2]==EMPTY))
return 1;
else
return 0;
}
/** returns 0 if not a legal move;
** returns the index of the middle (jumped) peg if it was legal
** (1 to BOARDSIZE*BOARDSIZE)
**/
int legalmove(void)
{
int lasti, lastj;
int i, j;
if (lastpicked == 0)
return 0;
lasti = (lastpicked-1)/BOARDSIZE;
lastj = (lastpicked-1)%BOARDSIZE;
i = (picked-1)/BOARDSIZE;
j = (picked-1)%BOARDSIZE;
#if 0
// printf("Jumping from (%d,%d) to (%d,%d)\n", lasti, lastj, i, j);
#endif
if (filled[lasti][lastj] == CANMOVE && filled[i][j] == EMPTY)
if (lasti==i+2)
return (i+1)*BOARDSIZE+(j)+1; /* i+1, +1 to get the name right */
else if (lasti==i-2)
return (i-1)*BOARDSIZE+(j)+1; /* i-1, +1 */
else if (lastj==j+2)
return (i)*BOARDSIZE+(j+1)+1; /* j+1, +1 */
else if (lastj==j-2)
return (i)*BOARDSIZE+(j-1)+1; /* j-1, +1 */
else
return 0;
return 0;
}
/* Checks for any legal moves remaining */
int movesexist(void)
{
int i, j, peg;
for (peg=1; peg<=BOARDSIZE*BOARDSIZE; peg++)
{
i = (peg-1)/BOARDSIZE;
j = (peg-1)%BOARDSIZE;
if (filled[i][j] == FULL && canmove(peg))
return 1;
}
return 0;
}
void drawquit(float x, float y, float r1, float r2)
{
GLUquadricObj* stick;
glLoadName(QUIT);
#if 0
//glDisable(GL_LIGHTING);
#endif
glColor3f(1.0, 0.0, 0.0); /* red */
#if 0
//glRectf(x, y, x+w, y+h);
//glEnable(GL_LIGHTING);
#endif
glPushMatrix();
glTranslatef(x, y, 0.0);
glPushMatrix();
stick = gluNewQuadric();
glRotatef(90, 0.0, 1.0, 0.0);
glRotatef(45, 1.0, 0.0, 0.0);
glTranslatef(0.0, 0.0, r2-1.5*r1);
gluQuadricDrawStyle(stick, GLU_FILL);
gluQuadricNormals(stick, GLU_SMOOTH);
gluCylinder(stick, 0.85*r1, 0.85*r1, 3*r1, 8, 1);
gluDeleteQuadric(stick);
/* glutSolidCone(rad, len, 8, 8);*/
glPopMatrix();
glRotatef(22.5, 0.0, 0.0, 1.0);
glutSolidTorus(r1, r2, 8, 8);
glPopMatrix();
glLoadName(0);
}
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