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Cocos2d-x Lua Degrees and Radians: Formulas and Helper Functions

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Convert degrees and radians in Cocos2d-x Lua with math.pi formulas and reusable helpers for node rotation, trigonometry, directions, and angle calculations.

Angle calculations are common in game development. Use these formulas to convert between degrees and radians.

Convert Degrees to Radians

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function math.angle2radian(angle)
    return angle * math.pi / 180
end

Convert Radians to Degrees

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function math.radian2angle(radian)
    return radian / math.pi * 180
end

For example, math.angle2radian(180) returns π, while math.radian2angle(math.pi / 2) returns 90.

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