TheGameCreators - CodeBase - Movement with cursor and X,Y tracking, some simple collision (2D)

Category: Miscellaneous

Version: 1.0

Information

Uploaded: 16th May 2005 21:50

Modified: 1st Jan 1970 01:00

Author: dwilson32

Summary

This is a small C++ .net program that demonstrates simple 2D collision (very simple) and demonstrates the dbPrint function as well as some other simple db functions via the darkSDK. If you see a better way of performing the included tasks, let me know.

Full Description

DarkBASIC Professional Source Code

` This code was downloaded from The Game Creators

` It is reproduced here with full permission

` http://www.thegamecreators.com

#include "iostream"

#include "stdio.h"

#include "string"

#include "DarkSDK.h"

using namespace std;

class sphere_dude

{

public:

int X, Y;

char drawCursor;

const static int R = 10;

const static int iUpperXLimit = 400;

const static int iLowerXLimit = 10;

const static int iUpperYLimit = 400;

const static int iLowerYLimit = 10;

// Create a string to hold coords that will be printed to the screen.

string X_string;

sphere_dude ()

{

// dummy constructor

}

void setStartingPoint (int XAdj, int YAdj)

{

Y = YAdj;

X = XAdj;

this->draw(X, Y);

}

void moveRight (int XAdj)

{

X = X + XAdj;

this->draw(X, Y);

}

void moveLeft (int XAdj)

{

X = X - XAdj;

this->draw(X, Y);

}

void moveDown (int YAdj)

{

Y = Y + YAdj;

this->draw(X, Y);

}

void moveUp (int YAdj)

{

Y = Y - YAdj;

this->draw(X, Y);

}

void draw (int X, int Y)

{

this->collisionCheck();

dbCircle (X, Y, R);

}

void drawLastKnown ()

{

dbCircle (X, Y, R);

}

void collisionCheck ()

{

if ((X - R) <= iLowerXLimit)

{

drawCursor = 'R';

X = iLowerXLimit + R;

}

if ((X + R) >= iUpperXLimit)

{

drawCursor = 'L';

X = iUpperXLimit - R;

}

if ((Y - R) <= iLowerYLimit)

{

drawCursor = 'B';

Y = iLowerYLimit + R;

}

if ((Y + R) >= iUpperYLimit)

{

drawCursor = 'T';

Y = iUpperYLimit - R;

}

void returnPos (void)

{

X_string.append ( "X: " );

X_string.append ( dbStr(X) );

X_string.append ( " | Y: " );

X_string.append ( dbStr(Y) );

//dbPrint ( iX_string  );

switch (drawCursor)

{

case 'T':

dbSetCursor (X - (R * 6), (Y - (R * 5)));

break;

case 'B':

dbSetCursor (X - (R * 6), (Y + (R * 5)));

break;

case 'R':

dbSetCursor (X + (R * 6), Y - (R * 5));

break;

case 'L':

dbSetCursor (X - (R * 6), Y - (R * 5));

break;

default:

dbSetCursor (X - (R * 6), (Y - R * 5));

break;

}

dbPrint ( const_cast<char*>(X_string.c_str()) );

X_string = " ";

}

};

void DarkSDK ( void )

{

// define and initialize the counter and switches

int iCounter, iX_reverse, iY_reverse, iLeft, iUp, iRandom;

iCounter = 0;

iX_reverse = 0;

iY_reverse = 0;

iLeft = 0;

iUp = 0;

iRandom = 0;

// Define our object sphereDude of type sphere_dude

sphere_dude sphereDude;

// define and initialize the coord variables and set movement speed.

int iXSpeed, iYSpeed, iUpperXLimit, iLowerXLimit, iUpperYLimit, iLowerYLimit;

int iX, iY;

iXSpeed = 5;

iYSpeed = 5;

sphereDude.setStartingPoint (200, 200);

// Create a string to hold coords and initialize cursor.

string iX_string;

dbSetCursor (50, 50);

// set sync on and sync rate to 60 frames per second

dbSyncOn   ( );

dbSyncRate ( 60 );

// loop until the escape key is pressed

while ( !dbEscapeKey ( ) )

{

if (dbUpKey()==1)

{

sphereDude.moveUp(iXSpeed);

}

else

{

if (dbDownKey()==1)

{

sphereDude.moveDown(iXSpeed);

}

else

{

if (dbRightKey()==1)

{

sphereDude.moveRight(iYSpeed);

}

else

{

if (dbLeftKey()==1)

{

sphereDude.moveLeft(iYSpeed);

}

else

{

sphereDude.drawLastKnown();

}

sphereDude.returnPos();

//iX_string = sphereDude.returnPos();

iCounter = 0;

dbSync ( );

dbCLS();

}

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Author Name:	dwilson32
CodeBase Entries:	1

CodeBase - Movement with cursor and X,Y tracking, some simple collision (2D)

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DarkBASIC Professional Source Code

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