Snake Game - Computer Graphics Source Code in C++

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Home » C++ Home » Computer Graphics Home » Snake Game

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Title	Snake Game
Author	Chaithanya P.V.N.S.K
Author Email	pvnskc [at] 1983 [at] yahoo.com
Description	This is source code for most popular snake game which is different from other snake games.It has colourfull graphical interface. Its scoring technique is entirely different.As u go on catching eggs ur speed increases so the score per egg decreases which gives a chellenge to get more score than others check this out once.
Category	C++ » Computer Graphics
Hits	394100
Code	Select and Copy the Code
//P.V.N.S.K.Chaithanya //cell no 9886022730 #include<iostream.h> #include<conio.h> #include<graphics.h> #include<dos.h> #include<stdlib.h> #include<stdio.h> #include<time.h> #include<string.h> class Snake { int p1,p2,v1,v2,v3,e1,e2,prev,now,n,colr,dsp,cnt,dly,m; int stp,egGen; int xr,yr; void caught(); public: long scr; int strtX,strtY,endX,endY; int pos[100][2]; void show(); void init(); void egg(); void transpose(); void gnrtCond(); void gnrtUnCond(); void check(); void checkEgg(); void move(); void chngDir(); void sndEt(); void sndCgt(); int test(); void score(); Snake(); Snake(Snake); ~Snake(); }; Snake::Snake() { } Snake::~Snake() { } void Snake::checkEgg() { if((e1 == p1) && (e2 == p2)) {sndEt(); egg(); dly--; score(); n++; } } void Snake::sndEt() {nosound(); sound(2500); delay(2); nosound(); } void Snake::sndCgt() {nosound(); for(int x=1000;x>0;x--) {sound(x); delay(1); } nosound(); } void Snake::score() { char p; ltoa(scr,p,10); settextstyle(8,0,1); setcolor(0); outtextxy(585,40,p); if(egGen != 1){ scr = scr + dly / 10; } ltoa(scr,p,10); setcolor(10); outtextxy(585,40,p); } void Snake::gnrtCond() {if(n < 367) {if(now == 8 && (prev != 8 && prev != 2)) {pos[0][0] = p1; pos[0][1] = p2 - dsp; prev = now; } if(now == 4 && (prev != 4 && prev != 1)) {pos[0][0] = p1 + dsp; pos[0][1] = p2; prev = now; } if(now == 2 && (prev != 8 && prev != 2)) {pos[0][0] = p1; pos[0][1] = p2 + dsp; prev = now; } if(now == 1 && (prev != 1 && prev != 4)) {pos[0][0] = p1 - dsp; pos[0][1] = p2; prev = now; } } } void Snake::gnrtUnCond() { if( prev == 8 ) {pos[0][0] = p1; pos[0][1] = p2 - dsp; } if( prev == 4 ) {pos[0][0] = p1 + dsp; pos[0][1] = p2; } if( prev == 2 ) {pos[0][0] = p1; pos[0][1] = p2 + dsp; } if( prev == 1 ) {pos[0][0] = p1 - dsp; pos[0][1] = p2; } p1 = pos[0][0]; p2 = pos[0][1]; } void Snake::check() { if(p1 > endX) {p1 = strtX;} else if(p1 < strtX) {p1 = endX;} if(p2 > endY) {p2 = strtY;} else if(p2 < strtY) {p2 = endY;} pos[0][0] = p1; pos[0][1] = p2; for(int i = 1;i < n;i++) { if(p1 == pos[i][0] && p2 == pos[i][1]) {caught(); break; } } } void Snake::show() { int x = getcolor(); if(egGen != 1) { setcolor(getbkcolor()); setfillstyle(1,getbkcolor()); fillellipse(v1,v2,yr,yr); } else egGen = 0; if(egGen == 2) egGen--; setcolor(colr); setfillstyle(1,9); if(now == 8 \|\| now == 2) fillellipse(pos[0][0],pos[0][1],xr,yr); else if(now == 4 \|\| now == 1) fillellipse(pos[0][0],pos[0][1],yr,xr); setcolor(x); } void Snake::transpose() { int i,j,x,y; p1 = pos[0][0]; p2 = pos[0][1]; if(!egGen){ v1 = pos[n-1][0]; v2 = pos[n-1][1]; } else egGen = 0; for(i = n-1;i >= 1;i--) {pos[i][0] = pos[i-1][0]; pos[i][1] = pos[i-1][1]; } } void Snake::move() { int st = 0; do{ if(!kbhit()) {checkEgg(); if(!st) show(); else st = 0; delay(dly/4); transpose(); delay(dly/4); gnrtUnCond(); delay(dly/4); check(); delay(dly/4); } else if(stp){ chngDir(); gnrtCond(); check(); show(); st = 1; } }while(stp); } void Snake::init() {time_t tm; srand(time(&tm)); dsp = 20; n = 5; prev = 4; for(int i = 4;i >= 0;i--) {pos[i][0] = 201 + (n - i - 1) * dsp; pos[i][1] = 301; } strtX = 21; strtY = 21; endX = 481; endY = 361; colr = 14; now = prev; dsp = 20; stp = 111; cnt = -1; scr = 0; dly = 150; xr = 3; yr = 9; egg(); egGen = 1; score(); int x = getcolor(); setlinestyle(0,1,3); setcolor(15); rectangle(strtX-15,strtY-15,endX+15,endY+15); rectangle(endX+25,strtY-15,getmaxx()-15,endY+15); rectangle(strtX-15,endY+25,getmaxx()-15,getmaxy()-5); line(endX+25,strtY+75,getmaxx()-15,strtY+75); line(endX+25,strtY+200,getmaxx()-15,strtY+200); line(endX+25,strtY+275,getmaxx()-15,strtY+275); setlinestyle(0,1,1); settextstyle(8,0,1); setcolor(11); outtextxy(514,40,"SCORE"); setcolor(14); settextstyle(11,0,5); outtextxy(524,110," CONTROLS "); outtextxy(522,135,"p = PAUSE"); outtextxy(522,155,"g = RESUME"); outtextxy(522,175,"e = EXIT"); outtextxy(513,195,"ARROWS"); outtextxy(512,205," -MOVEMENT"); setcolor(14); settextstyle(4,0,9); outtextxy(getmaxx()-500,getmaxy()-110,"SNAKE"); settextstyle(8,0,1); setcolor(x); } void Snake::caught() { stp = 0; sndCgt(); for(int i=0;i<=7;i++) {if(i%2) {setcolor(10); outtextxy(512,250,"GAME OVER"); delay(900); } else {setcolor(0); outtextxy(512,250,"GAME OVER"); delay(500); } } sleep(1); } void Snake::chngDir() {int clr; fillsettingstype p; char x = getch(); if(x == 72) now = 8; else if(x == 77) now = 4; else if(x == 80) now = 2; else if(x == 75) now = 1; else if(x == 'e') caught(); else if(x == 'p') {//int y = getcolor(); int twnkl = 1; settextstyle(11,0,9); while(1) {if(kbhit()) {int c = getch(); if(c == 'g') {clr = getcolor(); setcolor(0); rectangle(endX+40,endY-10,getmaxx()-35,getmaxy()-160); outtextxy(endX+60,endY-29,"PAUSE"); break; } } else {if(twnkl%2) {clr = getcolor(); setcolor(10); rectangle(endX+40,endY-10,getmaxx()-35,getmaxy()-160); outtextxy(endX+60,endY-29,"PAUSE"); setcolor(clr); delay(1000); } else { clr = getcolor(); setcolor(0); rectangle(endX+40,endY-10,getmaxx()-35,getmaxy()-160); outtextxy(endX+60,endY-29,"PAUSE"); delay(1000); } } twnkl++; } settextstyle(8,0,1); } } Snake::Snake(Snake p) { p=NULL; } void Snake::egg() { do {e1 = (rand() % 100) dsp + strtX; e2 = (rand() % 100) * dsp + strtY; }while(test()); int x = getcolor(); setcolor(7); setfillstyle(1,random(15)+1); fillellipse(e1,e2,xr+2,xr+2); setcolor(x); egGen = 2; } int Snake::test() { for(int i=0;i<n;i++) {if(e1 == pos[i][0] && e2 == pos[i][1]) break; if(v1 == e1 && v2 == e2) break; if((e1 >= endX+1) \|\| (e2 >= endY+1)) break; } if(i != n) return 1; else return 0; } void main() {Snake snk; int gd=DETECT,gm,i,j,k,x,y; clrscr(); initgraph(&gd,&gm,"E:\Turboc3"); snk.init(); snk.move(); closegraph(); restorecrtmode(); }

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