Notes

/*
Opengl-yilan-oyunu v0.01 OpenGL kütüphanesi ile yazılmış basit bir yılan oyunu.
Copyright (C) 2004 Engin KUZU

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

//http://www.gnu.org/copyleft/gpl.html
//Turkce cevirisi: http://www.belgeler.org/howto/gpl_copy.html

#include <stdio.h>
#include <stdlib.h>
#include <GL/glut.h>
#include <GL/gl.h>
#include <unistd.h>

unsigned int hiz=0,basla=0,bekleme,indis=15;
float r11=0,r12=0,r13=1,r21=0,r22=0,r23=1,r31=0,r32=0,r33=1,r41=0.5,r42=0.5,r43=0.9;
int i,hata;
int dizi[200][2]={5,5,0,5,-5,5,-10,5,-10,0,-10,-5,-15,-5,-20,-5,-20,0,-25,0,-30,0,-30,5,-30,10,-35,10,-40,10,0,0};
int siradaki[2],yemek[2]={20,20},salla[2],xa=5,ya=0;

void animasyon()
{
float x=-1,y=1,r1=0.01,r2=0,r3=0,p1=0,p2=0,p3=0;
glPointSize(4.0);
while(1)
{
if(x>1 && y<-1)
{ break; glFlush(); usleep(800000); }
if(x>1)
{ x=-1; y=y-0.01; glFlush(); usleep(4000); }
x=x+0.01;
p1+=r1; p2+=r2; p3+=r3;
if(p1>1)
{ p1=0; r1=0; r2=0.02; }
if(p2>1)
{ p2=0; r2=0; r3=0.02; }
if(p3>1)
{ p3=0; r3=0; r1=0.01; }
glColor3f(p1,p2,p3);
glBegin(GL_POINTS);
glVertex2f(x,y);
glEnd();
}
}

void ana()
{
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(r11,r12,r13);
glBegin(GL_POLYGON);
glVertex2f(-0.4,0.2);
glVertex2f(-0.2,0.2);
glVertex2f(-0.2,0.1);
glVertex2f(-0.4,0.1);
glEnd();
glColor3f(r21,r22,r23);
glBegin(GL_POLYGON);
glVertex2f(-0.1,0.2);
glVertex2f(0.1,0.2);
glVertex2f(0.1,0.1);
glVertex2f(-0.1,0.1);
glEnd();
glColor3f(r31,r32,r33);
glBegin(GL_POLYGON);
glVertex2f(0.4,0.2);
glVertex2f(0.2,0.2);
glVertex2f(0.2,0.1);
glVertex2f(0.4,0.1);
glEnd();
glColor3f(r41,r42,r43);
glBegin(GL_POLYGON);
glVertex2f(-0.1,-0.1);
glVertex2f(0.1,-0.1);
glVertex2f(0.1,-0.2);
glVertex2f(-0.1,-0.2);
glEnd();

char t1[]="Lutfen Oyun Hizini Seciniz:";
char t2[]="YAVAS";
char t3[]="ORTA";
char t4[]="HIZLI";
char t5[]="BASLA";
char t6[]="P : DURDUR ESC : CIKIS";
glColor3f (1.0F, 1.0F, 1.0F);
glRasterPos2f (-0.25, 0.40);
for (i = 0; i < strlen (t1); i++)
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, t1[i]);
glRasterPos2f (-0.35, 0.15);
for (i = 0; i < strlen (t2); i++)
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, t2[i]);
glRasterPos2f (-0.05, 0.15);
for (i = 0; i < strlen (t3); i++)
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, t3[i]);
glRasterPos2f ( 0.25, 0.15);
for (i = 0; i < strlen (t4); i++)
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, t4[i]);
glRasterPos2f (-0.05,-0.15);
for (i = 0; i < strlen (t5); i++)
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, t5[i]);
glRasterPos2f (-0.20,-0.65);
for (i = 0; i < strlen (t6); i++)
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, t6[i]);
glFlush();
}

void tuslar(unsigned char tus,int xx,int yy)
{
static int x=1,y=0,p=0;
//printf("%dn",tus);

if(tus==27)
exit(0);
if(tus==112)
{ if(basla==2) {basla=1;} else {basla=2;} }

else if(tus==52 && x!=1) { xa=-5; x=-1; ya=0; y=0; }
else if(tus==53 && y!=1) { ya=-5; y=-1; xa=0; x=0; }
else if(tus==54 && x!=-1) { xa=5; x=1; ya=0; y=0; }
else if(tus==56 && y!=-1) { ya=5; y=1; xa=0; x=0; }
}

void ciz(int tus,int durum,int xx,int yy)
{
float x=(xx-400)/400.0,y=(yy-400)/400.0;
if(tus==0 && durum==0)
{
if( x>-0.4 && x<-0.2 && y>-0.2 && y<-0.1 )
{ r11=0,r12=1,r13=1,r21=0,r22=0,r23=1,r31=0,r32=0,r33=1,r41=0.5,r42=0.5,r43=0.9; ana(); hiz=1; }
else if( x>-0.1 && x<0.1 && y>-0.2 && y<-0.1 )
{ r11=0,r12=0,r13=1,r21=0,r22=1,r23=1,r31=0,r32=0,r33=1,r41=0.5,r42=0.5,r43=0.9; ana(); hiz=2; }
else if( x>0.2 && x<0.4 && y>-0.2 && y<-0.1 )
{ r11=0,r12=0,r13=1,r21=0,r22=0,r23=1,r31=0,r32=1,r33=1,r41=0.5,r42=0.5,r43=0.9; ana(); hiz=3; }
else if( x>-0.1 && x<0.1 && y>0.1 && y<0.2 )
{ r11=0,r12=0,r13=1,r21=0,r22=0,r23=1,r31=0,r32=0,r33=1,r41=0.9,r42=0.5,r43=0.9; ana();
if(hiz==0)
{
char yaz[]="Secim yapilmamis !!!";
glRasterPos2f (-0.15,-0.35);
for (i = 0; i < strlen (yaz);i++)
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, yaz[i]);
}
else
{
animasyon();
basla=1;
if(hiz==1) bekleme=400000;
else if(hiz==2) bekleme=200000;
else bekleme=100000; //BEKLEME ZAMANLARI
}
}
}
}

void olum()
{
printf("Olum Gerceklendi...n");
exit(0);
}

void kazandin()
{
printf("Oyunu Kazandin...n");
exit(0);
}

void dongu()
{
if(basla==2)
{ usleep(1000); return; }
if(basla==0)
{
usleep(1000);
}else{

glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1,0,1); //KENARLIK RENGI.
glBegin(GL_LINES);
glVertex2f(-0.98,-0.98);
glVertex2f(-0.98,+0.98);
glVertex2f(-0.98,+0.98);
glVertex2f(+0.98,+0.98);
glVertex2f(+0.98,+0.98);
glVertex2f(+0.98,-0.98);
glVertex2f(+0.98,-0.98);
glVertex2f(-0.98,-0.98);
glEnd();

siradaki[0]=dizi[0][0]+xa;
siradaki[1]=dizi[0][1]+ya;
for (i=1;i<indis;i++)
{
if(dizi[i][0]==siradaki[0] && dizi[i][1]==siradaki[1])
{ printf("Kuyruga carptin. "); olum(); }
}
if(siradaki[0]<-95 || siradaki[0]>95 || siradaki[1]<-95 || siradaki[1]>95)
{ printf("Haritadan ciktin. %d %d koduyla son.n",siradaki[0],siradaki[1]); olum(); }

if( siradaki[0]==yemek[0] && siradaki[1]==yemek[1] )
{
indis++;
dizi[indis+1][0]=0; dizi[indis+1][1]=0;
for(i=indis-1;i!=-1;i--)
{ dizi[i+1][0]=dizi[i][0]; dizi[i+1][1]=dizi[i][1]; }
dizi[0][0]=yemek[0]; dizi[0][1]=yemek[1];
if(indis==198)
kazandin();

do{
hata=0;
srand(time(NULL));
salla[0]=((int)((random()-RAND_MAX/2)/(float)(RAND_MAX/2.0)*20)/20.0)*100;
salla[1]=((int)((random()-RAND_MAX/2)/(float)(RAND_MAX/2.0)*20)/20.0)*100;
for(i=0;i<=indis;i++)
{
if( dizi[i][0]==salla[0] && dizi[i][1]==salla[1] )
hata=1;
}
}while(hata==1);

yemek[0]=salla[0]; yemek[1]=salla[1];
printf("Yilan boyu:%dn",indis);
}
else
{
for(i=indis-1;i>=0;i--)
{
dizi[i+1][0]=dizi[i][0];
dizi[i+1][1]=dizi[i][1];
}
dizi[0][0]=siradaki[0]; dizi[0][1]=siradaki[1];
}

glPointSize(14.0);
glColor3f(1,0,0); //YEMEK KIRMIZI RENKTE
glBegin(GL_POINTS);
glVertex2f(yemek[0]/100.0,yemek[1]/100.0);
glEnd();

for(i=0;i<=indis;i++)
{
glColor3f(0,0,1);
glPointSize(14.0);
glBegin(GL_POINTS);
glVertex2f(dizi[i][0]/100.0,dizi[i][1]/100.0);
glEnd();
if(indis>i)
{
glPointSize(7.0); glColor3f(0,1,0); glBegin(GL_POINTS);
glVertex2f((dizi[i][0]+dizi[i+1][0])/200.0,(dizi[i][1]+dizi[i+1][1])/200.0);
glEnd();
}
}

glFlush();
usleep(bekleme);
}
}

int main (int argc, char *argv[])
{
glutInit (&argc, argv);
glutInitWindowSize(800,800);
glutInitWindowPosition(50,50);
glutCreateWindow("YILAN OYUNU TARIH: 9 Ekim 2004 Cumartesi VERSIYON: 0.1");

//glutFullScreen();
glutDisplayFunc(ana);
glutMouseFunc(ciz);
glutIdleFunc(dongu);
glutKeyboardFunc(tuslar);
glutMainLoop();
return(0);
}