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- local ffi = require("ffi")
- ffi.cdef
- [[
- bool math_equals(float a, float b);
- bool math_test_bitmask(int32_t value, int32_t bitmask);
- int32_t math_set_bitmask(int32_t value, int32_t bitmask);
- int32_t math_unset_bitmask(int32_t value, int32_t bitmask);
- float math_deg_to_rad(float deg);
- float math_rad_to_deg(float rad);
- uint32_t math_next_pow_2(uint32_t x);
- bool math_is_pow_2(uint32_t x);
- float math_ceil(float x);
- float math_floor(float x);
- float math_sqrt(float x);
- float math_inv_sqrt(float x);
- float math_sin(float x);
- float math_cos(float x);
- float math_asin(float x);
- float math_acos(float x);
- float math_tan(float x);
- float math_atan2(float y, float x);
- float math_abs(float x);
- float math_fmod(float n, float d);
- ]]
- Math = {}
- Math.equals = lib.math_equals
- Math.test_bitmask = lib.math_test_bitmask
- Math.set_bitmask = lib.math_set_bitmask
- Math.unset_bitmask = lib.math_unset_bitmask
- Math.deg_to_rad = lib.math_deg_to_rad
- Math.rad_to_deg = lib.math_rad_to_deg
- Math.next_pow_2 = lib.math_next_pow_2
- Math.is_pow_2 = lib.math_is_pow_2
- Math.ceil = lib.math_ceil
- Math.floor = lib.math_floor
- Math.sqrt = lib.math_sqrt
- Math.sin = lib.math_sin
- Math.cos = lib.math_cos
- Math.asin = lib.math_asin
- Math.acos = lib.math_acos
- Math.tan = lib.math_tan
- Math.atan2 = lib.math_atan2
- Math.abs = lib.math_abs
- Math.fmod = lib.math_fmod
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