Fix rounding accuracy

[TPGamesNL]

Description

• Removed unused methods
• Cleaned up file
• Adjust rounding methods with Skript.EPSILON before handling (lines 169, 184, 199, 206, 216, 226)

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Target Minecraft Versions: any Requirements: none Related Issues: #4235

[Matocolotoe]

Well, whatever the fix, due to the limitations of floating-point numbers' representation, there will always be a "bug" somewhere.

function floor_test():
	set {_a} to 3.9999999999
	set {_b} to floor({_a})
	broadcast {_a}.toString()
	broadcast {_b}.toString()

[TPGamesNL]

While you could call that behaviour a bug, 3.9999999999 = 4 according to Skript (as seen in Javadoc of Skript.EPSILON), so this is to be expected. We have to draw the line somewhere, and Njol (probs) decided 10^-10 was the width of that line

[Matocolotoe]

Right, I guess it's still better than having inconsistencies occurring at 2 decimal places.