56 lines
1.9 KiB
Lua
56 lines
1.9 KiB
Lua
--[[
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https://github.com/overextended/ox_lib
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This file is licensed under LGPL-3.0 or higher <https://www.gnu.org/licenses/lgpl-3.0.en.html>
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Copyright © 2025 Linden <https://github.com/thelindat>
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]]
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local glm_sincos = require 'glm'.sincos --[[@as fun(n: number): number, number]]
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local glm_rad = require 'glm'.rad --[[@as fun(n: number): number]]
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---Get the relative coordinates based on heading/rotation and offset
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---@overload fun(coords: vector3, heading: number, offset: vector3): vector3
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---@overload fun(coords: vector4, offset: vector3): vector4
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---@overload fun(coords: vector3, rotation: vector3, offset: vector3): vector3
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function lib.getRelativeCoords(coords, rotation, offset)
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if type(rotation) == 'vector3' and offset then
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local pitch = glm_rad(rotation.x)
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local roll = glm_rad(rotation.y)
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local yaw = glm_rad(rotation.z)
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local sp, cp = glm_sincos(pitch)
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local sr, cr = glm_sincos(roll)
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local sy, cy = glm_sincos(yaw)
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local rotatedX = offset.x * (cy * cr) + offset.y * (cy * sr * sp - sy * cp) + offset.z * (cy * sr * cp + sy * sp)
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local rotatedY = offset.x * (sy * cr) + offset.y * (sy * sr * sp + cy * cp) + offset.z * (sy * sr * cp - cy * sp)
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local rotatedZ = offset.x * (-sr) + offset.y * (cr * sp) + offset.z * (cr * cp)
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return vec3(
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coords.x + rotatedX,
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coords.y + rotatedY,
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coords.z + rotatedZ
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)
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end
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offset = offset or rotation
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local x, y, z, w = coords.x, coords.y, coords.z, type(rotation) == 'number' and rotation or coords.w
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local sin, cos = glm_sincos(glm_rad(w))
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local relativeX = offset.x * cos - offset.y * sin
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local relativeY = offset.x * sin + offset.y * cos
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return coords.w and vec4(
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x + relativeX,
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y + relativeY,
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z + offset.z,
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w
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) or vec3(
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x + relativeX,
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y + relativeY,
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z + offset.z
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)
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end
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return lib.getRelativeCoords
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