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snake.cpp
executable file
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snake.cpp
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/*
CS 349 A1 Skeleton Code - Snake
- - - - - - - - - - - - - - - - - - - - - -
Commands to compile and run:
g++ -o snake snake.cpp -L/usr/X11R6/lib -lX11 -lstdc++
./snake
Note: the -L option and -lstdc++ may not be needed on some machines.
*/
#include <iostream>
#include <list>
#include <cstdlib>
#include <sys/time.h>
#include <math.h>
#include <stdio.h>
#include <unistd.h>
#include <string>
#include <sstream>
/*
* Header files for X functions
*/
#include <X11/Xlib.h>
#include <X11/Xutil.h>
using namespace std;
/*
* Global game state variables
*/
const int Border = 1;
const int BufferSize = 10;
int FPS = 60;
int speed = 5;
int speed_saver = 5;
const int width = 800;
const int height = 600;
/*
* up 0
* down 1
* left 2
* right 3
*/
struct snakeLst {
int x;
int y;
snakeLst * next;
snakeLst * previous;
snakeLst(int x, int y, snakeLst * next, snakeLst * previous) : x(x), y(y), next(next), previous(previous) {
}
};
int score = 0;
int pause_indicator = 0;
int died = 0;
int dying = 0;
int start_screen = 1;
int just_turned = 0;
int quit_indicator = 0;
int snake_size = 1;
snakeLst * head = new snakeLst(100, 450, NULL, NULL);
snakeLst * tail = new snakeLst(100, 450, NULL, head);
/*
* Information to draw on the window.
*/
struct XInfo {
Display *display;
int screen;
Window window;
Pixmap pixmap;
GC gc[3];
int width; // size of window
int height;
};
/*
* Function to put out a message on error exits.
*/
void error( string str ) {
cerr << str << endl;
exit(0);
}
/*
* An abstract class representing displayable things.
*/
class Displayable {
public:
virtual void paint(XInfo &xinfo) = 0;
};
list<Displayable *> dList; // list of Displayables
class StartScreen : public Displayable {
public:
virtual void paint(XInfo &xinfo) {
/**************** draw black ***************/
XColor xcolour_ss_black;
char xcolor_ss_black[] = "#000000";
Colormap cmap_ss_black = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_ss_black, xcolor_ss_black, &xcolour_ss_black);
XAllocColor(xinfo.display, cmap_ss_black, &xcolour_ss_black);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_ss_black.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 180, 100, 20);//1
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 260, 200, 20, 40);//2
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 240, 240, 20, 60);//3
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 260, 300, 20, 20);//4
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 240, 20, 40);//5
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 360, 240, 20, 40);//6
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 380, 200, 20, 20);//7
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 400, 220, 20, 40);//8
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 420, 260, 20, 40);//9
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 320, 120, 20);//10
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 400, 300, 20, 80);//11
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 240, 340, 40, 20);//12
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 220, 360, 20, 20);//13
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 200, 380, 20, 60);//14
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 220, 440, 20, 20);//15
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 240, 460, 180, 20);//16
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 320, 340, 20, 20);//17
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 300, 360, 20, 20);//18
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 260, 380, 20, 20);//19
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 400, 100, 20);//20
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 380, 380, 20, 20);//21
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 420, 340, 20, 20);//22
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 440, 360, 20, 20);//23
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 460, 380, 20, 20);//24
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 480, 400, 20, 60);//25
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 460, 460, 20, 20);//26
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 440, 400, 20, 60);//27
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 420, 440, 20, 20);//28
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 420, 200, 20, 20);//29
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 440, 180, 20, 20);//30
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 460, 200, 20, 20);//31
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 480, 180, 20, 20);//32
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 460, 160, 20, 20);//33
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 480, 80, 20, 60);//34
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 500, 140, 20, 20);//35
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 520, 160, 140, 20);//36
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 660, 140, 20, 20);//37
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 680, 80, 20, 60);//38
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 660, 60, 20, 20);//39
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 520, 40, 140, 20);//40
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 500, 60, 20, 20);//41
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 560, 85, "I WANT", 6);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 515, 110, "PRESS w/a/s/d TO GUIDE ME", 25);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 540, 125, "PRESS p TO PAUSE", 16);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 535, 140, "PRESS r TO RESTART", 18);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 340, 555, "PRESS ANY KEY TO START", 22);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 673, 520, "WENXUE LI", 9);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 684, 540, "w254li", 6);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 677, 560, "20517629", 8);
XFreeColormap(xinfo.display, cmap_ss_black);
/**************** draw black ***************/
/**************** draw light green ***************/
XColor xcolour_ss_lgreen;
char xcolor_ss_lgreen[] = "#32CD32";
Colormap cmap_ss_lgreen = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_ss_lgreen, xcolor_ss_lgreen, &xcolour_ss_lgreen);
XAllocColor(xinfo.display, cmap_ss_lgreen, &xcolour_ss_lgreen);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_ss_lgreen.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 200, 100, 40);//1
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 260, 240, 20, 40);//2
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 380, 220, 20, 60);//3
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 300, 240, 60, 60);//4
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 280, 100, 20);//5
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 340, 40, 20);//6
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 240, 360, 60, 20);//7
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 220, 380, 40, 20);//8
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 240, 400, 40, 40);//9
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 420, 100, 20);//10
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 380, 400, 20, 40);//11
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 400, 380, 20, 60);//12
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 340, 340, 40, 20);//13
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 320, 360, 60, 20);//14
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 460, 400, 20, 60);//15
XFreeColormap(xinfo.display, cmap_ss_lgreen);
/**************** draw light green ***************/
/**************** draw dark green ***************/
XColor xcolour_ss_dgreen;
char xcolor_ss_dgreen[] = "#228B22";
Colormap cmap_ss_dgreen = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_ss_dgreen, xcolor_ss_dgreen, &xcolour_ss_dgreen);
XAllocColor(xinfo.display, cmap_ss_dgreen, &xcolour_ss_dgreen);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_ss_dgreen.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 400, 260, 20, 40);//1
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 300, 120, 20);//2
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 380, 340, 20, 40);//3
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 280, 380, 100, 20);//4
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 220, 400, 20, 40);//5
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 240, 440, 180, 20);//6
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 420, 360, 20, 80);//7
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 440, 380, 20, 20);//8
XFreeColormap(xinfo.display, cmap_ss_dgreen);
/**************** draw dark green ***************/
/**************** draw pink ***************/
XColor xcolour_ss_pink;
char xcolor_ss_pink[] = "#FF69B4";
Colormap cmap_ss_pink = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_ss_pink, xcolor_ss_pink, &xcolour_ss_pink);
XAllocColor(xinfo.display, cmap_ss_pink, &xcolour_ss_pink);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_ss_pink.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 260, 280, 20, 20);//1
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 380, 280, 20, 20);//2
XFreeColormap(xinfo.display, cmap_ss_pink);
/**************** draw pink ***************/
/**************** draw apple ****************/
/***** draw brown *****/
XColor xbrown;
char brown[] = "#FF0000";
Colormap cmap_brown = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_brown, brown, &xbrown);
XAllocColor(xinfo.display, cmap_brown, &xbrown);
XSetForeground(xinfo.display, xinfo.gc[0], xbrown.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 608, 72, 2, 6);
XFreeColormap(xinfo.display, cmap_brown);
/***** draw brown *****/
/***** draw green *****/
XColor xgreen;
char green[] = "#00FF00";
Colormap cmap_green = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_green, green, &xgreen);
XAllocColor(xinfo.display, cmap_green, &xgreen);
XSetForeground(xinfo.display, xinfo.gc[0], xgreen.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 610, 74, 2, 2);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 612, 72, 2, 2);
XFreeColormap(xinfo.display, cmap_green);
/***** draw green *****/
/***** draw white *****/
XColor xwhite;
char white[] = "#FFFFFF";
Colormap cmap_white = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_white, white, &xwhite);
XAllocColor(xinfo.display, cmap_white, &xwhite);
XSetForeground(xinfo.display, xinfo.gc[0], xwhite.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 604, 88, 4, 2);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 604, 80, 2, 2);
XFreeColormap(xinfo.display, cmap_white);
/***** draw white *****/
/***** draw red *****/
XColor xred;
char red[] = "#FF0000";
Colormap cmap_red = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_red, red, &xred);
XAllocColor(xinfo.display, cmap_red, &xred);
XSetForeground(xinfo.display, xinfo.gc[0], xred.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 604, 76, 4, 2);//1
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 611, 76, 4, 2);//2
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 602, 78, 2, 8);//3
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 604, 82, 2, 6);//4
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 606, 80, 6, 10);//5
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 608, 78, 8, 2);//6
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 612, 80, 4, 6);//7
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 612, 86, 2, 2);//8
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 680, 500, "MADE BY", 7);
XFreeColormap(xinfo.display, cmap_red);
/***** draw red *****/
/**************** draw apple ****************/
}
};
StartScreen startScreen;
/*
* Function to repaint a display list
*/
void repaint( XInfo &xinfo) {
list<Displayable *>::const_iterator begin = dList.begin();
list<Displayable *>::const_iterator end = dList.end();
// get height and width of window (might have changed since last repaint)
XWindowAttributes windowInfo;
XGetWindowAttributes(xinfo.display, xinfo.window, &windowInfo);
unsigned int height = windowInfo.height;
unsigned int width = windowInfo.width;
// big black rectangle to clear background
// draw display list
XColor xcolour_bg;
char xcolor_bg[] = "#F5F5F5";
Colormap cmap_bg = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_bg, xcolor_bg, &xcolour_bg);
XAllocColor(xinfo.display, cmap_bg, &xcolour_bg);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_bg.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 0, 0, 800, 600);
while( begin != end ) {
Displayable *d = *begin;
d->paint(xinfo);
begin++;
}
XCopyArea(xinfo.display, xinfo.pixmap, xinfo.window, xinfo.gc[0], 0, 0, 800, 600, 0, 0);
XFlush( xinfo.display );
}
class Obstacles : public Displayable {
public:
virtual void paint(XInfo &xinfo) {
/**************/
XColor xcolour_o;
char xcolor_o[] = "#000000";
Colormap cmap_o = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_o, xcolor_o, &xcolour_o);
XAllocColor(xinfo.display, cmap_o, &xcolour_o);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_o.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 50, 50, 10, 450);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 750, 50, 10, 450);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 50, 500, 710, 10);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 50, 50, 710, 10);
XFreeColormap(xinfo.display, cmap_o);
}
};
class Fruit : public Displayable {
public:
virtual void paint(XInfo &xinfo) {
/**************** draw apple ****************/
/***** draw brown *****/
XColor xbrown;
char brown[] = "#FF0000";
Colormap cmap_brown = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_brown, brown, &xbrown);
XAllocColor(xinfo.display, cmap_brown, &xbrown);
XSetForeground(xinfo.display, xinfo.gc[0], xbrown.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+5, y+1, 1, 3);
XFreeColormap(xinfo.display, cmap_brown);
/***** draw brown *****/
/***** draw green *****/
XColor xgreen;
char green[] = "#00FF00";
Colormap cmap_green = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_green, green, &xgreen);
XAllocColor(xinfo.display, cmap_green, &xgreen);
XSetForeground(xinfo.display, xinfo.gc[0], xgreen.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+7, y+1, 1, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+6, y+2, 1, 1);
XFreeColormap(xinfo.display, cmap_green);
/***** draw green *****/
/***** draw white *****/
XColor xwhite;
char white[] = "#FFFFFF";
Colormap cmap_white = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_white, white, &xwhite);
XAllocColor(xinfo.display, cmap_white, &xwhite);
XSetForeground(xinfo.display, xinfo.gc[0], xwhite.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+4, 2, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+5, 1, 1);
XFreeColormap(xinfo.display, cmap_white);
/***** draw white *****/
if (golden == 1) {
/***** draw yellow *****/
XColor xyellow;
char yellow[] = "#FFA500";
Colormap cmap_yellow = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_yellow, yellow, &xyellow);
XAllocColor(xinfo.display, cmap_yellow, &xyellow);
XSetForeground(xinfo.display, xinfo.gc[0], xyellow.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+3, 2, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+6, y+3, 2, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+2, y+4, 1, 4);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+6, 1, 3);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+4, y+5, 1, 5);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+5, y+4, 1, 6);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+6, y+4, 1, 6);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+7, y+4, 1, 5);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+8, y+4, 1, 4);
XFreeColormap(xinfo.display, cmap_yellow);
/***** draw yellow *****/
} else if (slow_down == 1) {
/***** draw purple *****/
XColor xpurple;
char purple[] = "#A020F0";
Colormap cmap_purple = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_purple, purple, &xpurple);
XAllocColor(xinfo.display, cmap_purple, &xpurple);
XSetForeground(xinfo.display, xinfo.gc[0], xpurple.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+3, 2, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+6, y+3, 2, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+2, y+4, 1, 4);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+6, 1, 3);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+4, y+5, 1, 5);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+5, y+4, 1, 6);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+6, y+4, 1, 6);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+7, y+4, 1, 5);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+8, y+4, 1, 4);
XFreeColormap(xinfo.display, cmap_purple);
/***** draw purple *****/
} else {
/***** draw red *****/
XColor xred;
char red[] = "#FF0000";
Colormap cmap_red = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_red, red, &xred);
XAllocColor(xinfo.display, cmap_red, &xred);
XSetForeground(xinfo.display, xinfo.gc[0], xred.pixel);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+3, 2, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+6, y+3, 2, 1);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+2, y+4, 1, 4);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+3, y+6, 1, 3);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+4, y+5, 1, 5);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+5, y+4, 1, 6);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+6, y+4, 1, 6);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+7, y+4, 1, 5);
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], x+8, y+4, 1, 4);
XFreeColormap(xinfo.display, cmap_red);
/***** draw red *****/
}
/**************** draw apple ****************/
/**************** print score *************/
XColor xcolour_s;
char xcolor_s[] = "#000000";
Colormap cmap_s = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_s, xcolor_s, &xcolour_s);
XAllocColor(xinfo.display, cmap_s, &xcolour_s);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_s.pixel);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 20, 550, "SCORE", 5);
stringstream ss;
ss << score;
ss.str(); // Gets you a C++ std::string
ss.str().c_str();
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 70, 550, ss.str().c_str(), ss.str().length());
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 20, 570, "LIFE", 4);
int life = 1 - died;
stringstream ss2;
ss2 << life;
ss2.str(); // Gets you a C++ std::string
ss2.str().c_str();
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 70, 570, ss2.str().c_str(), ss2.str().length());
XFreeColormap(xinfo.display, cmap_s);
}
Fruit() {
// generate the x and y value for the fruit
srand(time(NULL));
int golden_indicator = rand() % 10;
if (golden_indicator == 0) {
golden = 1;
} else {
golden = 0;
int slow_indicator = rand() % 15;
if (slow_indicator == 0) {
slow_down = 1;
} else {
slow_down = 0;
}
}
x = (rand() % 64 + 6) * 10;
y = (rand() % 40 + 6) * 10;
if (x == 100 && y == 450) {
x = 250;
y = 300;
}
}
int getX() {
return x;
}
int getY() {
return y;
}
int getGolden() {
return golden;
}
int getSlow_down() {
return slow_down;
}
void refresh(int preX, int preY) {
srand(time(NULL));
int golden_indicator = rand() % 10;
if (golden_indicator == 0) {
golden = 1;
} else {
golden = 0;
int slow_indicator = rand() % 20;
if (slow_indicator == 0) {
slow_down = 1;
} else {
slow_down = 0;
}
}
do {
x = (rand() % 64 + 6) * 10;
} while (x == preX);
do {
y = (rand() % 40 + 6) * 10;
} while (y == preY);
snakeLst * ptr = head;
do {
if (x == ptr->x && y == ptr->y) {
refresh(x, y);
} else {
if (ptr->next != NULL) {
ptr = ptr->next;
} else {
break;
}
}
} while (ptr != NULL);
}
private:
int x;
int y;
int golden;
int slow_down;
};
Fruit fruit;
Obstacles obstacles;
void deleteLastNode() {
if (head == NULL) {
return;
}
if (head->next == NULL) {
delete head;
head = NULL;
return;
}
snakeLst * currNode = head;
while (currNode->next != NULL && currNode->next->next != NULL) {
currNode = currNode->next;
}
tail = currNode;
delete currNode->next;
currNode->next = NULL;
}
class Snake : public Displayable {
public:
virtual void paint(XInfo &xinfo) {
/*******************/
XColor xcolour_sn;
char xcolor_sn[] = "#6B8E23";
Colormap cmap_sn = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_sn, xcolor_sn, &xcolour_sn);
XAllocColor(xinfo.display, cmap_sn, &xcolour_sn);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_sn.pixel);
snakeLst * ptr = head;
while (true) {
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], ptr->x, ptr->y, blockSize, blockSize);
if (ptr->next != NULL) {
ptr = ptr->next;
} else {
break;
}
}
XFreeColormap(xinfo.display, cmap_sn);
if (dying == 1) {
XColor xcolour_ho;
char xcolor_ho[] = "#000000";
Colormap cmap_ho = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_ho, xcolor_ho, &xcolour_ho);
XAllocColor(xinfo.display, cmap_ho, &xcolour_ho);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_ho.pixel);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 365, 200, "HIT OBSTACLE", 12);
if (died == 1) {
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 350, 240, "PRESS r TO RESTART", 18);
} else {
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 350, 240, "PRESS r TO RESTART", 18);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 398, 260, "OR", 2);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 330, 280, "PRESS w/a/s/d TO CONTINUE", 25);
}
XFreeColormap(xinfo.display, cmap_ho);
}
if (pause_indicator == 1) {
XColor xcolour_ho;
char xcolor_ho[] = "#000000";
Colormap cmap_ho = DefaultColormap(xinfo.display, DefaultScreen(xinfo.display));
XParseColor(xinfo.display, cmap_ho, xcolor_ho, &xcolour_ho);
XAllocColor(xinfo.display, cmap_ho, &xcolour_ho);
XSetForeground(xinfo.display, xinfo.gc[0], xcolour_ho.pixel);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 390, 200, "PAUSE", 5);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 350, 240, "PRESS r TO RESTART", 18);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 398, 260, "OR", 2);
XDrawString(xinfo.display, xinfo.pixmap, xinfo.gc[0], 330, 280, "PRESS p/w/a/s/d TO CONTINUE", 27);
XFreeColormap(xinfo.display, cmap_ho);
}
}
void move(XInfo &xinfo) {
int preX = head->x;
int preY = head->y;
if (direction == 0) {
snakeLst * newHead = new snakeLst(preX, preY - 10, head, NULL);
head = newHead;
deleteLastNode();
} else if (direction == 1) {
snakeLst * newHead = new snakeLst(preX, preY + 10, head, NULL);
head = newHead;
deleteLastNode();
} else if (direction == 2) {
snakeLst * newHead = new snakeLst(preX - 10, preY, head, NULL);
head = newHead;
deleteLastNode();
} else if (direction == 3) {
snakeLst * newHead = new snakeLst(preX + 10, preY, head, NULL);
head = newHead;
deleteLastNode();
}
int newX = head->x;
int newY = head->y;
int fX = fruit.getX();
int fY = fruit.getY();
if (((fX - newX > -10 && fX - newX <= 0) || (fX - newX < 10 && fX - newX >= 0))
&& ((fY - newY > -10 && fY - newY <= 0) || (fY - newY < 10 && fY - newY >= 0))) {
didEatFruit(head);
}
newX = head->x;
newY = head->y;
if (direction == 0 && newY - 10 < 60) {
didHitObstacle(head, xinfo);
} else if (direction == 1 && newY + 10 > 490) {
didHitObstacle(head, xinfo);
} else if (direction == 2 && newX - 10 < 60) {
didHitObstacle(head, xinfo);
} else if (direction == 3 && newX + 10 > 740) {
didHitObstacle(head, xinfo);
}
snakeLst * hh = head;
if (hh->next != NULL) {
hh = hh->next;
}
while (hh->next != NULL) {
hh = hh->next;
if (direction == 0 && newY - 10 == hh->y && newX == hh->x) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 1 && newY + 10 == hh->y && newX == hh->x) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 2 && newX - 10 == hh->x && newY == hh->y) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 3 && newX + 10 == hh->x && newY == hh->y) {
didHitObstacle(head, xinfo);
break;
}
}
}
int getX() {
return x;
}
int getY() {
return y;
}
int getDirection() {
return direction;
}
void setDirection(int d) {
direction = d;
}
void didEatFruit(snakeLst * h) {
int x = fruit.getX();
int y = fruit.getY();
snakeLst * newHead = new snakeLst(x, y, h, NULL);
head = newHead;
score += 100;
snake_size += 1;
if (fruit.getGolden() == 1) {
died -= 1;
}
if (fruit.getSlow_down() == 1 && speed > 1) {
speed -= 1;
}
fruit.refresh(x, y);
}
void didHitObstacle(snakeLst * h, XInfo &xinfo) {
died += 1;
dying = 1;
}
void turnLeft(snakeLst * h, snakeLst * t, XInfo &xinfo) {
// d = 1 increase x
// d = 0 decrease x
// d = 3 decrease y
// d = 2 increase y
int preX = h->x;
int preY = h->y;
if (direction == 0) {
snakeLst * newHead = new snakeLst(preX - 10, preY, head, NULL);
head = newHead;
direction = 2;
} else if (direction == 1) {
snakeLst * newHead = new snakeLst(preX + 10, preY, head, NULL);
head = newHead;
direction = 3;
} else if (direction == 2) {
snakeLst * newHead = new snakeLst(preX, preY + 10, head, NULL);
head = newHead;
direction = 1;
} else if (direction == 3) {
snakeLst * newHead = new snakeLst(preX, preY - 10, head, NULL);
head = newHead;
direction = 0;
}
deleteLastNode();
int newX = head->x;
int newY = head->y;
int fX = fruit.getX();
int fY = fruit.getY();
if (((fX - newX > -10 && fX - newX <= 0) || (fX - newX < 10 && fX - newX >= 0))
&& ((fY - newY > -10 && fY - newY <= 0) || (fY - newY < 10 && fY - newY >= 0))) {
didEatFruit(head);
}
newX = head->x;
newY = head->y;
if (direction == 0 && newY - 10 < 60) {
didHitObstacle(head, xinfo);
} else if (direction == 1 && newY + 10 > 490) {
didHitObstacle(head, xinfo);
} else if (direction == 2 && newX - 10 < 60) {
didHitObstacle(head, xinfo);
} else if (direction == 3 && newX + 10 > 740) {
didHitObstacle(head, xinfo);
}
snakeLst * hh = head;
if (hh->next != NULL) {
hh = hh->next;
}
while (hh->next != NULL) {
hh = hh->next;
if (direction == 0 && newY - 10 == hh->y && newX == hh->x) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 1 && newY + 10 == hh->y && newX == hh->x) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 2 && newX - 10 == hh->x && newY == hh->y) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 3 && newX + 10 == hh->x && newY == hh->y) {
didHitObstacle(head, xinfo);
break;
}
}
}
void turnRight(snakeLst * h, snakeLst * t, XInfo &xinfo) {
// d = 1 decrease x
// d = 0 increase x
// d = 3 increase y
// d = 2 decrease y
int preX = h->x;
int preY = h->y;
if (direction == 0) {
snakeLst * newHead = new snakeLst(preX + 10, preY, head, NULL);
head = newHead;
direction = 3;
} else if (direction == 1) {
snakeLst * newHead = new snakeLst(preX - 10, preY, head, NULL);
head = newHead;
direction = 2;
} else if (direction == 2) {
snakeLst * newHead = new snakeLst(preX, preY - 10, head, NULL);
head = newHead;
direction = 0;
} else if (direction == 3) {
snakeLst * newHead = new snakeLst(preX, preY + 10, head, NULL);
head = newHead;
direction = 1;
}
deleteLastNode();
int newX = head->x;
int newY = head->y;
int fX = fruit.getX();
int fY = fruit.getY();
if (((fX - newX > -10 && fX - newX <= 0) || (fX - newX < 10 && fX - newX >= 0))
&& ((fY - newY > -10 && fY - newY <= 0) || (fY - newY < 10 && fY - newY >= 0))) {
didEatFruit(head);
}
newX = head->x;
newY = head->y;
if (direction == 0 && newY - 10 < 60) {
didHitObstacle(head, xinfo);
} else if (direction == 1 && newY + 10 > 490) {
didHitObstacle(head, xinfo);
} else if (direction == 2 && newX - 10 < 60) {
didHitObstacle(head, xinfo);
} else if (direction == 3 && newX + 10 > 740) {
didHitObstacle(head, xinfo);
}
snakeLst * hh = head;
if (hh->next != NULL) {
hh = hh->next;
}
while (hh->next != NULL) {
hh = hh->next;
if (direction == 0 && newY - 10 == hh->y && newX == hh->x) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 1 && newY + 10 == hh->y && newX == hh->x) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 2 && newX - 10 == hh->x && newY == hh->y) {
didHitObstacle(head, xinfo);
break;
} else if (direction == 3 && newX + 10 == hh->x && newY == hh->y) {
didHitObstacle(head, xinfo);
break;
}
}
}
Snake(int x, int y): x(x), y(y) {
direction = 3;
blockSize = 10;
}
private:
int x;
int y;
int blockSize;
int direction;
};
Snake snake(100, 450);
/*