"Fairmath System": Snowman (v1.3.0)

Summary

"Fairmath System" demonstrates how to re-create the Fairmath system found in ChoiceScript. Based on a percentage operation, increase and decrease changes the value by a percentage as the difference between the original and adjusted value.

This example uses functions increase() and decrease() as part of a created global window.setup.fairmath. These can be called through using the Underscore template functionality to define, use, and show the values of the functions in any one passage.

Example

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Twee Code

:: StoryTitle
Fairmath in Snowman

:: UserScript[script]
// Create a global object
window.setup = window.setup || {};

// Create a fairmath global object
window.setup.fairmath = {};

// Create an 'increase' function
setup.fairmath.increase = function(x,y) {
  return Math.round(x+((100-x)*(y/100)));
};

// Create a "decrease" function
setup.fairmath.decrease = function(x,y) {
  return Math.round(x-(x*(y/100)));
};

:: Start
Decrease 100 by 50% using Fairmath:
<%= setup.fairmath.decrease(100, 50) %>

Increase 50 by 50% using Fairmath:
<%= setup.fairmath.increase(50, 50) %>

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