Mooore smoooooth animations

2020-06-12 23:12:37 +01:00
parent 00f958a71e
commit a65c56eb41
8 changed files with 143 additions and 141 deletions
@@ -1000,4 +1000,22 @@ public final class WizardryUtilities {
 		return fields;
 	}

+	/**
+	 * Calculates a factor between 0 and 1 that results in a smooth, aesthetically-pleasing animation when used to scale
+	 * things. Mainly for rendering, but can be used anywhere since it's just a mathematical formula.
+	 * @param lifetime The lifetime of the thing being animated, in ticks (if this is negative, disappearing is ignored)
+	 * @param ticksExisted The current age of the thing being animated, in ticks
+	 * @param partialTicks The current partial tick time
+	 * @param startLength The length of the appearing animation, in ticks
+	 * @param endLength The length of the disappearing animation, in ticks
+	 * @return A fraction between 0 and 1, with the value at the very start and end being 0 and the constant middle
+	 * section having a value of 1.
+	 */
+	public static float smoothScaleFactor(int lifetime, int ticksExisted, float partialTicks, int startLength, int endLength){
+		float age = ticksExisted + partialTicks;
+		float s = MathHelper.clamp(age < startLength || lifetime < 0 ? age/startLength : (lifetime - age) / endLength, 0, 1);
+		s = (float)Math.pow(s, 0.4); // Smooths the animation
+		return s;
+	}
+
 }