94 lines
2.8 KiB
Haxe
94 lines
2.8 KiB
Haxe
package funkin.backend.utils;
|
|
|
|
import flixel.util.FlxColor;
|
|
import openfl.display.BitmapData;
|
|
import openfl.geom.Point;
|
|
import openfl.geom.Rectangle;
|
|
|
|
class BitmapUtil {
|
|
/**
|
|
* Returns the most present color in a Bitmap.
|
|
* @param bmap Bitmap
|
|
* @return FlxColor Color that is the most present.
|
|
*/
|
|
public static function getMostPresentColor(bmap:BitmapData):FlxColor {
|
|
// map containing all the colors and the number of times they've been assigned.
|
|
var colorMap:Map<FlxColor, Float> = [];
|
|
var color:FlxColor = 0;
|
|
var fixedColor:FlxColor = 0;
|
|
|
|
for(y in 0...bmap.height) {
|
|
for(x in 0...bmap.width) {
|
|
color = bmap.getPixel32(x, y);
|
|
fixedColor = 0xFF000000 + (color % 0x1000000);
|
|
if (!colorMap.exists(fixedColor))
|
|
colorMap[fixedColor] = 0;
|
|
colorMap[fixedColor] += color.alphaFloat;
|
|
}
|
|
}
|
|
|
|
var mostPresentColor:FlxColor = 0;
|
|
var mostPresentColorCount:Float = -1;
|
|
for(c=>n in colorMap) {
|
|
if (n > mostPresentColorCount) {
|
|
mostPresentColorCount = n;
|
|
mostPresentColor = c;
|
|
}
|
|
}
|
|
return mostPresentColor;
|
|
}
|
|
/**
|
|
* Returns the most present saturated color in a Bitmap.
|
|
* @param bmap Bitmap
|
|
* @return FlxColor Color that is the most present.
|
|
*/
|
|
public static function getMostPresentSaturatedColor(bmap:BitmapData):FlxColor {
|
|
// map containing all the colors and the number of times they've been assigned.
|
|
var colorMap:Map<FlxColor, Float> = [];
|
|
var color:FlxColor = 0;
|
|
var fixedColor:FlxColor = 0;
|
|
|
|
for(y in 0...bmap.height) {
|
|
for(x in 0...bmap.width) {
|
|
color = bmap.getPixel32(x, y);
|
|
fixedColor = 0xFF000000 + (color % 0x1000000);
|
|
if (!colorMap.exists(fixedColor))
|
|
colorMap[fixedColor] = 0;
|
|
colorMap[fixedColor] += color.alphaFloat * 0.33 + (0.67 * (color.saturation * (2 * (color.lightness > 0.5 ? 0.5 - (color.lightness) : color.lightness))));
|
|
}
|
|
}
|
|
|
|
var mostPresentColor:FlxColor = 0;
|
|
var mostPresentColorCount:Float = -1;
|
|
for(c=>n in colorMap) {
|
|
if (n > mostPresentColorCount) {
|
|
mostPresentColorCount = n;
|
|
mostPresentColor = c;
|
|
}
|
|
}
|
|
return mostPresentColor;
|
|
}
|
|
|
|
/**
|
|
* Returns a new bitmap without any empty transperent space on the edges
|
|
* @param bitmap The bitmap to be cropped
|
|
*/
|
|
public static function crop(bitmap:BitmapData) {
|
|
var minX:Int = bitmap.width;
|
|
var minY:Int = bitmap.height;
|
|
var maxX:Int = 0; var maxY:Int = 0;
|
|
|
|
for (y in 0...bitmap.height)
|
|
for (x in 0...bitmap.width)
|
|
if (bitmap.getPixel32(x, y) != 0x00000000) {
|
|
if (x < minX) minX = x;
|
|
if (y < minY) minY = y;
|
|
if (x > maxX) maxX = x;
|
|
if (y > maxY) maxY = y;
|
|
}
|
|
|
|
var croppedBitmap:BitmapData = new BitmapData(maxX-minX+1, maxY-minY+1, true, 0x00000000);
|
|
croppedBitmap.copyPixels(bitmap, new Rectangle(minX, minY, croppedBitmap.width, croppedBitmap.height), new Point(0,0));
|
|
return croppedBitmap;
|
|
}
|
|
} |