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#include <stdio.h>
#include <conio.h>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
//-Prototypes-
int loadArray(int [],int );
void docommands(int [],int [][30],int );
void printArray(int [][30]);
void trnrgt(int *);
void trnlft(int *);
int moveit(int *,int ,int [],int [][30],int *,int *,int);
void doc(void);
void main(void)
{
int commands[100]={0};
int position[30][30]={{0},{0}};int count=0;
system("CLS");
printf("This is a turtle graphics program.");
doc(); //how to use the program
//ount=loadArray(commands,count); //count is how many numbers were entered
docommands(commands,position,count);
system ("PAUSE");
}
int loadArray(int array[],int temp){
int x;
for(x=0;;x++) {
temp++; //temp is the count
printf("Enter command : ");
scanf("%d",&array[x]);
if (array[x]==9)
break ;
if (array[x]==7 || array[x]==8){
printf("Invalid entry !!!Try Again\n");
x--;//erase what we just wrote
temp--;//decrement our count
}
if (array[x]<= 0 || array[x]>9){
printf("Invalid entry !!!Try Again\n");
x--;
temp--;
}
if (array[x]==5) {
scanf(",%d",&array[x+1]);
x++; //move to next element
temp++; //increae count
}
}
return temp;
}
void docommands(int array[],int ddarray[][30],int c){
int x,y,pendwn,count,post=1,bounds1=0,bounds2=0;
for (x=0;x<=c;x++){
switch (array[x]){
case 1: pendwn = 0;
break ;
case 2:pendwn = 1;
break;
case 3:trnrgt(&post);
break;
case 4:trnlft(&post);
break;
case 5:x=moveit(&post,x,array,ddarray,&bounds1,&bounds2,pendwn);
break;
case 6:printArray(ddarray);
break;
case 9:break;
}
}
}
void printArray(int array [][30]){
int x,col,rows;
for (rows=0;rows <30;rows++){
for (col=0;col<30;col++)
printf("%c" ,array[rows][col]);
printf("\n");
}
}
int moveit(int *post,int x,int array[],int ddarray[][30],int *bounds1,int *bounds2,int pendwn){
int y,b,bnds1,bnds2;
x++;
bnds1=*bounds1; //watch the bounds for going up and down
bnds2=*bounds2; //watch the bounds for going sideways
switch (*post){
case 1:
if (bnds2<30){
if (array[x]>29)
array[x]=29;
for(y=0;y<(array[x]);y++){
if (pendwn){
ddarray[bnds1][bnds2]=42;
bnds2++;
}
else {
ddarray[bnds1][bnds2]=32;
bnds2++;
}
}
}
break;
case 2: {
if (array[x]>29)
array[x]=29;
for (y=(array[x]);y>0;y--){
if (bnds2>0){
if (bnds1>=30)
bnds1=19;
if (pendwn){
ddarray[bnds1][bnds2]=42;
bnds2--;
}
else {
ddarray[bnds1][bnds2]= 32;
bnds2--;
}
}
else
break;
}
break;
case 3:{
if (array[x]>29)
array[x]=29;
for (y =0;y<(array[x]);y++){
if (bnds1>0){
if (pendwn){
ddarray[bnds1][bnds2]=42;
bnds1--;
}
else{
ddarray[bnds1][bnds2]=32;
bnds1--;
}
}
}
break;
}
case 4:{
if (array[x]>29)
array[x]=29;
for (y=0;y < (array[x]);y++){
if (bnds2>29)
bnds2=19;
if (pendwn){
ddarray[bnds1][bnds2]= 42;
bnds1++;
}
else{
ddarray[bnds1][bnds2]= 32;
bnds1++;
}
}
break;
}
}
}
*bounds1=bnds1;
*bounds2=bnds2;
return x;
}
void trnlft(int *post){
switch (*post){
case 1:*post = 3; // 1 = east
break;
case 2:*post = 4; // 2 = west
break;
case 3:*post = 2; // 3 = north
break;
case 4:*post = 1; //4 = south
break;
}
}
void trnrgt(int *post){
switch (*post){
case 1: *post = 4;
break;
case 2: *post = 3;
break;
case 3: *post = 1;
break;
case 4: *post = 2;
break;
}
}
void doc (void){
printf("This program will draw a series of * with the commands that ");
printf("are entered. \nHere are the commands : \n\n");
printf("1 pushes your pen up meaning leaving no traces.\n");
printf("2 puts the pen down to leave traces.\n");
printf("3 turns right.\n");
printf("4 turns left.\n");
printf("5 moves after entering a 5 you have to specify the number of moves.\n");
printf(" for example : 5,10 you have to put the coma before the number.\n");
printf("6 prints the result on the screen.\n");
printf("9 ends the program.\n\n");
}
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