Right, however I scaled all of the sprites. One of them seems to have been scaled differently than the others, though.
Here's the entire code. Just pop it in and run it, they all get scaled the same, but only one of them is tiny.
// Dark GDK - The Game Creators - www.thegamecreators.com
// the wizard has created a very simple 2D project that uses Dark GDK
// it can be used as a starting point in making your own 2D games
// whenever using Dark GDK you must ensure you include the header file
#include "DarkGDK.h"
// the main entry point for the application is this function
void DarkGDK ( void )
{
// in this application a backdrop is loaded and then several
// animated sprites are displayed on screen
// when starting a Dark GDK program it is useful to set global
// application properties, we begin by turning the sync rate on,
// this means we control when the screen is updated, we also set
// the maximum rate to 60 which means the maximum frame rate will
// be set at 60 frames per second
dbSyncOn ( );
dbSyncRate ( 60 );
// a call is made to this function so we can stop the GDK from
// responding to the escape key, we can then add in some code in our
// main loop so we can control what happens when the escape key is pressed
dbDisableEscapeKey ( );
// now we will set the random seed value to the timer, this will
// help us to get more random values each time we run the program
dbRandomize ( dbTimer ( ) );
// we are going to display a backdrop for the scene, to do this
// we load our image and give it an ID number of 1, this particular
// image is of a sky at night with stars
dbLoadImage ( "backdrop.bmp", 1 );
// the next step is to create a sprite that uses this image, this
// is achieved by calling dbSprite and passing in a value of 1 for the
// sprites ID, 0 for the X coordinate, 0 for the Y coordinates and a
// value of 1 for the image
dbSprite ( 1, 0, 0, 1 );
// next we will load in some animated sprites, before doing this
// we need to adjust the image color key, by using this function we
// can make a specific color be transparent, in our case we want this
// to be bright pink
dbSetImageColorKey ( 255, 0, 255 );
// in this loop we're going to create some animated sprites, the image
// we load contains frames of animation for an asteroid
for ( int i = 2; i < 30; i++ )
{
// create an animated sprite and give it the ID number from the
// variable i, next is the filename, now we come to how many frames
// across and down, in our case this is 4, finally we come to the image
// ID that the sprite will use, again we use i
dbCreateAnimatedSprite ( i, "sprite.bmp", 4, 4, i );
// position our sprite at a random location
dbSprite ( i, dbRnd ( 640 ), -dbRnd ( 1500 ), i );
}
// now we come to our main loop, we call LoopGDK so some internal
// work can be carried out by the GDK
while ( LoopGDK ( ) )
{
// run a loop through all our sprites
for ( int i = 2; i < 30; i++ )
{
// move the sprite down and play its animation
// moving from frame 1 to 16 with a delay of 60 ms
dbMoveSprite ( i, -2 );
//dbPlaySprite ( i, 1, 16, 60 );
// check the position of the sprite, if it has gone off scren
// then reposition it back to the top
dbScaleSprite(i,10);
if ( dbSpriteY ( i ) > 500 )
dbSprite ( i, dbRnd ( 640 ), -dbRnd ( 100 ), i );
}
// here we check if the escape key has been pressed, when it has
// we will break out of the loop
if ( dbEscapeKey ( ) )
break;
// here we make a call to update the contents of the screen
dbSync ( );
}
// when the user presses escape the code will break out to this location
// and we can free up any previously allocated resources
// delete all the sprites
for ( int i = 1; i < 30; i++ )
dbDeleteSprite ( i );
// delete the backdrop image
dbDeleteImage ( 1 );
// and now everything is ready to return back to Windows
return;
}
The one and only,
