Coding Ideas in c++(non mfc)
Sample code to use to improve all your programes
A very simple timer
If there is any code that you need
Just email me at kingpinzs@hotmail.com
#include <stdio.h>
#include <iostream>
#include <stdlib.h>
#include <time.h>
using namespace std;
//The timer fuction
void wait ( int seconds )
{
clock_t endwait;
endwait = clock () + seconds * CLK_TCK ;
while (clock() < endwait) {}
}
//wait in milseconds
void waitMil (int milseconds)
{
clock_t endwait;
endwait = clock () + milseconds /CLOCKS_PER_SEC ;
while (clock() < endwait) {}
}
//wait in miniutes
void waitMin(int minute)
{
clock_t endwait;
endwait = clock () + (minute * 60) * CLOCKS_PER_SEC ;
while (clock() < endwait) {}
}
//wait in hours
void waitHr(int hour)
{
clock_t endwait;
endwait = clock () + (hour * 3600) * CLOCKS_PER_SEC ;
while (clock() < endwait) {}
}
//updated 4/27/05 added milseconds minuites and hours
int main(int argc, char *argv[])
{
int y = 0;
std::cout <<"FORMATING DRIVE "<< std::endl;
for (y=0; y<101; y++)
{
std::cout<< y<<"%";
std::cout<<"\b";std::cout<<"\b";std::cout<<"\b";std::cout<<"\b";
wait (1);
}
std::cout<<std::endl;
std::cout <<"format done" << std::endl;
system("PAUSE");
return 0;
}
These defines help make your complied projects smaller
#define VC_LEANMEAN
#define WIN32_LEAN_AND_MEAN
A windows timer
DWORD start_clock_count = 0; //Count the time (global)
//My timing functions
///////////////////////////////////////////////////////////
//Return current tick-time
DWORD Get_Clock()
{
return(GetTickCount());
}
///////////////////////////////////////////////////////////
//Start clock
DWORD Start_Clock()
{
return(start_clock_count = Get_Clock());
}
////////////////////////////////////////////////////////////
//Pause the clock
DWORD Wait_Clock(DWORD count)
{
while((Get_Clock() - start_clock_count) < count);
return(Get_Clock());
}
////////////////////////////////////////////////////////////
Message
MessageBox(NULL "Incorrect password! ","Error!", MB_OK);
MessageBox(NULL,"Are you sure you want to save changes?","Confirm", MB_YESNO);
This is used to accept no input as in put
cin.ignore(); // you have to have this or it will see there is no input as input and continue any way with having to press enter
getline (cin, input);
if (input == "gun") {
cout << "you win and take all 107 peices of gold";
} else if (input =="run") {
cout << "you run like a cowerd" << endl;
} else if (input.empty()) //this you can just press enter to get what you want
{
cout << (107 % afterBattle) << " coins.";
}
std::transform(input2.begin(), input2.end(), input2.begin(), (int(*)(int))std::toupper);
This changes the string that was inputed and changes to a uppercase so nolonger case sensitive
To make sure your *.h file is included only once and will not gett error duplicate defftions you put
#pragma once
at the verey top. this works great for me
that is the old way here is the new way
#ifndef HFILENAME_H
#define HFILENAME_H
#endif
If you get error
fatal error LNK1120: 1 unresolved externals
you forgot to include a *.lib or a *.a or an external file for the compiler to include in compilation
Simple collision detection with side of window
#include <iostream>
#include <stdlib.h>
using namespace std;
int main(int argc, char *argv[])
{
float speedX, speedY;
float x, y;
float mapX, mapY; // assume these two variables are right and bottom corners of the map
x = 100; // some value
y = 100;
speedX = 1;
speedY = 1;
mapX = 640; // size of map
mapY = 480;
while(1)
{
x += speedX;
y += speedY;
if(x < 0 || x > mapX) speedX *= -1;
if(y < 0 || y > mapY) speedY *= -1;
cout << x <<"\n"
<< y <<"\n";
}
system("PAUSE");
return 0;
}
Basic way to save to a txt file
#include <iostream>
#include <stdlib.h>
#include <string>
#include <fstream>
int main()
{
std::ofstream fileOutput("file.txt");
fileOutput << "Text goes here" << varible << endl;
fileOutput.close();
return(0);
}
Loading text file to an array. this is the way I do it for now
#include <iostream>
#include <stdlib.h>
#include <fstream>
using namespace std;
int y, x;
int test;
int main(int argc, char *argv[])
{ ifstream fin;
ifstream MapFile("map.txt");
int map[16][16];
for(int y = 0 ; y <16; y++)
{for(int x = 0 ; x <16; x++)
{
MapFile >> map[y][x];
test = map[y][x];
cout <<y<<" "<<x<<endl;
cout <<"----------"<<endl;
cout <<" "<<test<<"id: ";
}}
MapFile.close();
system("PAUSE");
return 0;
}
_________________________________________________________________________________________________
to use the arrow keys ect with out using dos.h or windows.h
num
{
KEY_ESC = 27,
ARROW_UP = 256 + 72,
ARROW_DOWN = 256 + 80,
ARROW_LEFT = 256 + 75,
ARROW_RIGHT = 256 + 77,
SPACE = 32
};
static int get_code ( void )
{
int ch = getch();
if ( ch == 0 || ch == 224 )
ch = 256 + getch();
return ch;
}
ch = get_code();
can be used for any keys
or just use this to get anykey
_kbhit()
have to include conio.h to use it
_____________________________________________________________
to help you figure out which way your player is facing
#include <cstdlib>
#include <iostream>
enum eDir {UNDEF, NORTH, SOUTH, EAST, WEST};
using namespace std;
int main(int argc, char *argv[])
{
eDir tehDir;
char hold;
while(1){
std::cout << "Direction: N, S, E, W>";
std::cin >> hold;
//quit the loop
if(hold == 'X')
break;
//assign tehDir
switch(hold) {
case 'N': tehDir = NORTH; break;
case 'S': tehDir = SOUTH; break;
case 'E': tehDir = EAST; break;
case 'W': tehDir = WEST; break;
default: tehDir = UNDEF; break;
}
//find out which direction we're pointing.
switch(tehDir){
case NORTH: std::cout << "You're going North" << endl; ;break;
case SOUTH: std::cout << "You're going South" << endl;break;
case EAST: std::cout << "You're going East" << endl; break;
case WEST: std::cout << "You're going West" << endl; break;
default: std::cout << "Undefined" << endl; break;
}
}//end of while loop
system("PAUSE");
return EXIT_SUCCESS;
}