What does the number represent?
Upupzealot wrote ...
2013/4/27
What's new in the coming version of Greenfoot?
JetLennit wrote...
I would also like a method for
System.out.println();
//the method could be like
public void say(String words, int number)
{
System.out.println(words, number);
}
I just giving you a straight answer. If they were to include something like this, it would probably look like: Greenfoot.println(String s)
true..... hadn't thought of that... and i apologize if i sounded too defensive
I would also like an animation thing where you select several images and it cycles through them and something that breaks up a sprite sheet
Here's something that breaks up a sprite sheet:
If you just want a flat array (i.e. one-dimensional) rather than the 2D one returned by that method, you can either rewrite the method to use a flat array (this is the better option) or you could just use this method to convert it:
The flat array's elements will be ordered like this:
/**
* Breaks up a sprite sheet.
*
* @param spriteSheet The sprite sheet to use.
* @param width The width that the resulting sprites should be.
* @param height The height that the resulting sprites should be.
* @return A 2D array of sprite images.
*/
public static GreenfootImage[][] parseSpriteSheet(GreenfootImage spriteSheet, int width, int height) {
int numCols = spriteSheet.getWidth() / width;
int numRows = spriteSheet.getHeight() / height;
GreenfootImage[][] sprites = new GreenfootImage[numCols][numRows];
for(int x = 0; x < numCols; x++)
for(int y = 0; y < numRows; y++) {
GreenfootImage img = new GreenfootImage(width, height);
// There may be a better way of doing this,
// but I do so little stuff in Java that I
// can't remember if there's a function to
// create a GreenfootImage from a section
// of another one. Hence, for now, I just
// copy it across pixel by pixel.
for(int x2 = 0; x2 < width; x2++)
for(int y2 = 0; y2 < height; y2++) {
img.setColorAt(
x2,
y2,
spriteSheet.getColorAt(
x*width + x2,
y*height + y2));
}
sprites[x][y] = img;
}
return sprites;
}public static GreenfootImage[] flattenArray(GreenfootImage[][] array) {
int width = array.length;
int height = array[0].length;
GreenfootImage[] flatArray = new GreenfootImage[width * height];
for(int x = 0; x < width; x++)
for(int y = 0; y < height; y++) {
flatArray[x + y*width] = array[x][y];
}
return flatArray;
}
An alternate way is:
public GreenfootImage[][] parseSpriteSheet(GreenfootImage spriteSheet, int imagesAcross, int imagesDown)
{
GreenfootImages[][] images = new GreenfootImages[imagesDown][imagesAcross];
int wide = spriteSheet.getWidth()/imagesAcross;
int high = spriteSheet.getHeight()/imagesDown;
for (int j=0; j<imagesDown; j++) for (int k=0; k<imagesAcross; k++)
{
images[j][k] = new GreenfootImage(wide, high);
images[j][k].drawImage(spriteSheet, -k*wide, -j*high);
}
return images;
}Would be nice to modify the template for new classes. Or just options to include Name/date in the header comment of new classes from like preferences.
I say template because (in addition to backspacing then typing name/date etc.) I backspace a lot to clean up the default structure. (such as example method, unnecessary/prompting comments, padded white space found following brackets/parens etc.) In that it takes close to 8-10 seconds each time I create a new class.
And I'm getting into a habit of disliking imports with '*'.
@bourne, you can modify the files used to create the default templates with any standard text editor (I prefer WordPad).
I found my files at: Greenfoot\lib\english\greenfoot\templates
Oh. You on a pc? I tried looking (I'm on a mac. Went to show package contents - did a search and dug around). But didn't find anything.
Never mind I think I found it. Was in a folder labeled Templates after all. Thanks for the help! Still might be nice for an automated date. But this almost as good!
I must not have looked very hard,
/Applications/Greenfoot 2.2.1/Greenfoot.app/Contents/Resources/Java/english/greenfoot/templates
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