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authorFilip Weiss <me@fiws.net>2020-07-11 13:06:43 +0200
committerGitHub <noreply@github.com>2020-07-11 14:06:43 +0300
commitd4fb1f7c357822c4331c60e112decdf25b282bd5 (patch)
treef201f1983998aa049305afd4006284b68b6e585f /src/main/java
parent7bcbdfbe43638ea217e4301f487ca8962d77204a (diff)
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RGB: add interpolate method (#64)
Diffstat (limited to 'src/main/java')
-rw-r--r--src/main/java/io/github/cottonmc/cotton/gui/widget/data/Color.java17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/data/Color.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/data/Color.java
index 3dbbe39..92c27ce 100644
--- a/src/main/java/io/github/cottonmc/cotton/gui/widget/data/Color.java
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/data/Color.java
@@ -163,6 +163,23 @@ public interface Color {
float c = getChroma()/255f;
return c / (1 - Math.abs(2*l - 1));
}
+
+ /**
+ * Calculates an interpolated value along the fraction t between 0.0 and 1.0. When t = 1.0, endVal is returned.
+ * Eg.: If this color is black, your endColor is white and t = 0.5 you get gray.
+ *
+ * @param endColor a Color to interpolate with
+ * @param t fraction between 0.0 and 1.0
+ *
+ * @since 2.0.0
+ */
+ public RGB interpolate(RGB endColor, double t){
+ double a = (endColor.getA() - this.getA()) * t + this.getA();
+ double r = (endColor.getR() - this.getR()) * t + this.getR();
+ double g = (endColor.getG() - this.getG()) * t + this.getG();
+ double b = (endColor.getB() - this.getB()) * t + this.getB();
+ return new RGB((int)a, (int)r, (int)g, (int)b);
+ }
}
public static class HSL implements Color {