I am writing a turtle graphics program and I need help with 2 characters to show when the direction of my turtle is up or down. I am using
cout << ">";
cout << ">";
for right and left and right directions.
Any help will be greatly appreciated since my program is almost up and running.
this the game i made since i started learnin' C++.. try to understand how to use Up and Down Arrows in directionS .
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/**********The "CAUGHT IN THE MIDDLE" game******************/
/Author : mohammed meabed*****************************/
/Email : meabed@gmail.com*****************************/
#include<iostream.h>
#include<conio.h>
#include<graphics.h>
#include<stdlib.h>
#include<dos.h>
#include<stdio.h>
enum dir direction; /*indicates the direction of the shooter*/
int fire(int xco,int yco,int &lr,int &tb,int &rl,int &bt);/*shoots place check for hit*/
/*The most complex function flashes the green boxes and*/
/*records their coordinates*/
int environment(int xposition,int yposition,int position_array_location);
int match(void); /*checks the fired location and the locations of the boxes*/
int put_banner(void); /*banner at the end of game*/
/*structure to record the position of boxes*/
struct position
{
int x_pos;
int y_pos;
};
struct position p[10]; /*array to record the locations of boxes*/
struct position sh; /*variable to record the location of the shooter*/
enum dir;/*enum to indicate direction*/
unsigned int hitcount=0;
void main()
{
int gdriver = DETECT;
int gmode;
int ch,is_hit;
int x=350,y=200;/*x,y coordinates*/
/*variables used to move around boxes*/
int i=0,j=320,k=400,l=0,m=800,n=200,p=600,o=300;
int iflag,lflag,mflag,pflag; /*flag to indicate which box has been hit*/
initgraph(&gdriver,&gmode,"c:\tc\bgi"); /*initiating graphics*/
setcolor(YELLOW);
settextstyle(TRIPLEX_FONT,HORIZ_DIR,5); /*Drawing the initial banners*/
outtextxy((getmaxx()/2)-260,(getmaxy()/2)-20,"\"CAUGHT IN THE MIDDLE\"");
setcolor(WHITE);
outtextxy(100,50,"Use \"arrow\" key to move");
outtextxy(100,100,"Use \"enter\" to fire");
outtextxy(100,300,"by");
outtextxy(100,350,"Naren Rathinavel"); /*drawing banner completed*/
getch();
settextstyle(DEFAULT_FONT,HORIZ_DIR,0);
setbkcolor(BLUE);
delay(1000);
cleardevice();
x=getmaxx()/2;y=getmaxy()/2;
moveto(x,y);
do
{
/*draws the shooter*/
setfillstyle(SOLID_FILL,WHITE);
circle(x,y,10);
floodfill(x,y,WHITE);
circle(x,y,20);
line(x,y-20,x,y+20);
line(x-20,y,x+20,y);
/*draws the shooter*/
while(!kbhit()) /*until the keyboard is hit boxes are flashed*/
{
i=i%800;
l=l%600;
if(m<=0)m+=800;
if(p<=0)p+=600;
environment(i,j,0);/*moves from left to right*/
environment(k,l,1);/*moves from top to bottom*/
environment(m,n,2);/*moves from right to left*/
environment(o,p,3);/*moves from bottom to top*/
i+=20;
l+=20;
m-=20;
p-=20;
if(i>=800) j=rand()%600;
if(l>=600) k=rand()%800;
if(m<=0) n=rand()%600;
if(p<=0) o=rand()%800;
}
ch =getch(); /*gets key from user*/ /*key board is hit*/
setfillstyle(SOLID_FILL,BLUE); /*draws a block to erase shooter at previous position*/
bar(x+20,y+20,x-20,y-20);
x=getx();
y=gety();
sh.x_pos=x; /*gets the shooter position*/
sh.y_pos=y;
setfillstyle(SOLID_FILL,WHITE);/*draws the shooter*/
circle(x,y,10);
floodfill(x,y,WHITE);
circle(x,y,20);
line(x,y-20,x,y+20);
line(x-20,y,x+20,y);
setfillstyle(SOLID_FILL,BLUE);
bar(x+20,y+20,x-20,y-20);
outtextxy(240,10,"HIT CTRL+Z TO QUIT");
switch(ch)
{
case 72:/*up arrow*/
direction=NORTH;
x=getx();
y=gety();
moveto(x,y-20);
x=getx();
y=gety();
sh.x_pos=x;
sh.y_pos=y;
setfillstyle(SOLID_FILL,WHITE);
circle(x,y,10);
floodfill(x,y,WHITE);
circle(x,y,20);
line(x,y-20,x,y+20);
line(x-20,y,x+20,y);
break;
case 80:/*down arrow*/
direction=SOUTH;
x=getx();
y=gety();
moveto(x,y+20);
x=getx();
y=gety();
sh.x_pos=x;
sh.y_pos=y;
setfillstyle(SOLID_FILL,WHITE);
circle(x,y,10);
floodfill(x,y,WHITE);
circle(x,y,20);
line(x,y-20,x,y+20);
line(x-20,y,x+20,y);
break;
case 75:/*left arrow*/
direction=WEST;
x=getx();
y=gety();
moveto(x-20,y);
x=getx();
y=gety();
sh.x_pos=x;
sh.y_pos=y;
setfillstyle(SOLID_FILL,WHITE);
circle(x,y,10);
floodfill(x,y,WHITE);
circle(x,y,20);
line(x,y-20,x,y+20);
line(x-20,y,x+20,y);
break;
case 77:/*right arrow*/
direction=EAST;
x=getx();
y=gety();
moveto(x+20,y);
x=getx();
y=gety();
sh.x_pos=x;
sh.y_pos=y;
setfillstyle(SOLID_FILL,WHITE);
circle(x,y,10);
floodfill(x,y,WHITE);
circle(x,y,20);
line(x,y-20,x,y+20);
line(x-20,y,x+20,y);
break;
case 13:/*enter key*/
x=getx();
y=gety();
sh.x_pos=x;
sh.y_pos=y;
is_hit=fire(x,y,iflag,lflag,mflag,pflag);/*flags r passed by reference*/
if(is_hit==1)
{
hitcount++;
if(iflag)i+=800;
else if(lflag)k+=600;
else if(mflag)m=0;
else if(pflag)p=0;
iflag=0;lflag=0;mflag=0;pflag=0; /*flag reset*/
}
x=getx();
y=gety();
setfillstyle(SOLID_FILL,WHITE);
circle(x,y,10);
floodfill(x,y,WHITE);
circle(x,y,20);
line(x,y-20,x,y+20);
line(x-20,y,x+20,y);
break;
}
}while(ch!=26);
closegraph();
restorecrtmode();
printf("YOU HAVE SCORED :%d",hitcount);/*score is indicated*/
getch();
}
/*function fire draws ans erases a line along the current direction*/
int fire(int x,int y,int <r,int &ttb,int &rtl,int &btt)
{
int i=0,hit=0;
switch(direction)
{
case EAST:/*right*/
if(sh.y_pos>=p[i].y_pos-20&&sh.y_pos<=p[i].y_pos+20&&sh.x_pos<p[i].x_pos)
{
hit=1;
switch(i)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.y_pos>=p[i+1].y_pos-20&&sh.y_pos<=p[i+1].y_pos+20&&sh.x_pos<p[i+1].x_pos)
{
hit=1;
switch(i+1)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.y_pos>=p[i+2].y_pos-20&&sh.y_pos<=p[i+2].y_pos+20&&sh.x_pos<p[i+2].x_pos)
{
hit=1;
switch(i+2)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.y_pos>=p[i+3].y_pos-20&&sh.y_pos<=p[i+3].y_pos+20&&sh.x_pos<p[i+3].x_pos)
{
hit=1;
switch(i+3)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
setcolor(YELLOW);
line(x+20,y,x+800,y);
setcolor(BLUE);
delay(100);
line(x+20,y,x+800,y);
setcolor(WHITE);
break;
case WEST:/*left*/
if(sh.y_pos>=p[i].y_pos-20&&sh.y_pos<=p[i].y_pos+20&&sh.x_pos>p[i].x_pos)
{
hit=1;
switch(i)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.y_pos>=p[i+1].y_pos-20&&sh.y_pos<=p[i+1].y_pos+20&&sh.x_pos>p[i+1].x_pos)
{
hit=1;
switch(i+1)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.y_pos>=p[i+2].y_pos-20&&sh.y_pos<=p[i+2].y_pos+20&&sh.x_pos>p[i+2].x_pos)
{
hit=1;
switch(i+2)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.y_pos>=p[i+3].y_pos-20&&sh.y_pos<=p[i+3].y_pos+20&&sh.x_pos>p[i+3].x_pos)
{
hit=1;
switch(i+3)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
setcolor(YELLOW);
line(x-20,y,x-800,y);
setcolor(BLUE);
delay(100);
line(x-20,y,x-800,y);
setcolor(WHITE);
break;
case SOUTH:/*down*/
if(sh.x_pos>=p[i].x_pos-20&&sh.x_pos<=p[i].x_pos+20&&sh.y_pos<p[i].y_pos)
{
hit=1;
switch(i)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.x_pos>=p[i+1].x_pos-20&&sh.x_pos<=p[i+1].x_pos+20&&sh.y_pos<p[i+1].y_pos)
{
hit=1;
switch(i+1)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.x_pos>=p[i+2].x_pos-20&&sh.x_pos<=p[i+2].x_pos+20&&sh.y_pos<p[i+2].y_pos)
{
hit=1;
switch(i+2)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.x_pos>=p[i+3].x_pos-20&&sh.x_pos<=p[i+3].x_pos+20&&sh.y_pos<p[i+3].y_pos)
{
hit=1;
switch(i+3)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
setcolor(YELLOW);
line(x,y+20,x,y+800);
setcolor(BLUE);
delay(100);
line(x,y+20,x,y+800);
setcolor(WHITE);
break;
case NORTH:/*up*/
if(sh.x_pos>=p[i].x_pos-20&&sh.x_pos<=p[i].x_pos+20&&sh.y_pos>p[i].y_pos)
{
hit=1;
switch(i)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.x_pos>=p[i+1].x_pos-20&&sh.x_pos<=p[i+1].x_pos+20&&sh.y_pos>p[i+1].y_pos)
{
hit=1;
switch(i+1)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.x_pos>=p[i+2].x_pos-20&&sh.x_pos<=p[i+2].x_pos+20&&sh.y_pos>p[i+2].y_pos)
{
hit=1;
switch(i+2)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
else if(sh.x_pos>=p[i+3].x_pos-20&&sh.x_pos<=p[i+3].x_pos+20&&sh.y_pos>p[i+3].y_pos)
{
hit=1;
switch(i+3)
{
case 0: ltr=1; break;
case 1: ttb=1; break;
case 2: rtl=1; break;
case 3: btt=1; break;
}
}
setcolor(YELLOW);
line(x,y-20,x,y-800);
setcolor(BLUE);
delay(100);
line(x,y-20,x,y-800);
setcolor(WHITE);
break;
}
for(i=0;i<=3;i++) {p[i].x_pos=0; p[i].y_pos=0;}/*refreshing the record*/
return(hit); /* of a positions*/
}
/*draws the green boxes */
int environment(int x,int y,int pos)
{
int i;
p[pos].x_pos=x;
p[pos].y_pos=y;
/*conditions to check for collision
checks whether the center of box x,y is within the area
(sh_xpos-20,sh_ypos-20)
(sh_xpos+20,sh_ypos+20)*/
if(x>=sh.x_pos-20&&x<=sh.x_pos+20&&y>=sh.y_pos-20&&y<=sh.y_pos+20)
{
put_banner();
getch();
closegraph();
restorecrtmode();
printf("YOU HAVE SCORED :%d",hitcount);
getch();
exit(0);
}
setfillstyle(SOLID_FILL,LIGHTGREEN);
bar(x-10,y-10,x+10,y+10);
delay(20);
setfillstyle(SOLID_FILL,BLUE);
bar(x-10,y-10,x+10,y+10);
setcolor(WHITE);
return(0);
}
/*puts a banner at the End of Game*/
int put_banner()
{
setcolor(YELLOW);
settextstyle(TRIPLEX_FONT,HORIZ_DIR,5);
outtextxy((getmaxx()/2)-260,(getmaxy()/2)-20,"SORRY YOU`VE BEEN HIT");
return 0;
}I was looking for a more simple solution. A simple cout statement is what I need. I have been searching around and I came across what I am looking for, but this is in C language. A statement like this:
printf( "%c", 25 );
printf( "%c", 16 );
How would this be implemented in C++ ?
Thanks.
Try this, works well with the free Dev C++ compiler.
// display arrow characters with Dev C++
#include <iostream>
using namespace std;
int main()
{
char left,right,up,down;
up = 24;
down = 25;
left = 27;
right = 26;
cout << up;
cout << down;
cout << left;
cout << right;
cout << "\n";
system("PAUSE");
return 0;
}We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.