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-- For luaJit compatibility.
if table.unpack == nil then
table.unpack = unpack
end
local Vector3 = require( "vector3" )
local Matrix = require( "matrix" )
local Quaternion = {}
local metatable = {
__index = Quaternion,
__tostring = function( q )
return "{"..tostring( q.x )..", "..tostring( q.y )..", "..tostring( q.z )..", "..tostring( q.w ).."}"
end,
__add = function( q1, q2 )
return Quaternion:newT( RL.QuaternionAdd( q1, q2 ) )
end,
__sub = function( q1, q2 )
return Quaternion:newT( RL.QuaternionSubtract( q1, q2 ) )
end,
__mul = function( q1, q2 )
return Quaternion:newT( RL.QuaternionMultiply( q1, q2 ) )
end,
__div = function( q1, q2 )
return Quaternion:newT( RL.QuaternionDivide( q1, q2 ) )
end,
__unm = function( q )
return Quaternion:newT( RL.QuaternionInvert( q ) )
end,
__len = function()
return 4
end,
__eq = function( q1, q2 )
return RL.QuaternionEquals( q1, q2 ) == 1
end,
__concat = function( a, b )
return tostring( a )..tostring( b )
end,
}
function Quaternion:new( x, y, z, w )
local object = setmetatable( {}, metatable )
object.x = x or 0
object.y = y or 0
object.z = z or 0
object.w = w or 1
return object
end
function Quaternion:newT( t )
local object = setmetatable( {}, metatable )
object.x, object.y, object.z, object.w = table.unpack( t )
return object
end
function Quaternion:set( x, y, z, w )
self.x = x or 0
self.y = y or 0
self.z = z or 0
self.w = w or 1
end
function Quaternion:setT( t )
self.x, self.y, self.z, self.w = table.unpack( t )
end
function Quaternion:arr()
return { self.x, self.y, self.z, self.w }
end
function Quaternion:unpack()
return self.x, self.y, self.z, self.w
end
function Quaternion:clone()
return Quaternion:new( self.x, self.y, self.z, self.w )
end
function Quaternion:addValue( value )
return Quaternion:newT( RL.QuaternionAddValue( self, value ) )
end
function Quaternion:subValue( value )
return Quaternion:newT( RL.QuaternionSubtractValue( self, value ) )
end
function Quaternion:identity()
return Quaternion:newT( RL.QuaternionIdentity() )
end
function Quaternion:length()
return RL.QuaternionLength( self )
end
function Quaternion:normalize()
return Quaternion:newT( RL.QuaternionNormalize( self ) )
end
function Quaternion:invert()
return Quaternion:newT( RL.QuaternionInvert( self ) )
end
function Quaternion:scale( scalar )
return Quaternion:newT( RL.QuaternionScale( self, scalar ) )
end
function Quaternion:lerp( q2, value )
return Quaternion:newT( RL.QuaternionLerp( self, q2, value ) )
end
function Quaternion:nLerp( q2, value )
return Quaternion:newT( RL.QuaternionNLerp( self, q2, value ) )
end
function Quaternion:sLerp( q2, value )
return Quaternion:newT( RL.QuaternionSLerp( self, q2, value ) )
end
function Quaternion:fromVector3ToVector3( from, to )
return Vector3:newT( RL.QuaternionFromVector3ToVector3( from, to ) )
end
function Quaternion:fromMatrix( mat )
return Quaternion:newT( RL.QuaternionFromMatrix( mat ) )
end
function Quaternion:toMatrix()
return Matrix:newT( RL.QuaternionToMatrix( self ) )
end
function Quaternion:fromAxisAngle( axis, angle )
return Quaternion:newT( RL.QuaternionFromAxisAngle( axis, angle ) )
end
function Quaternion:toAxisAngle()
local axis, angle = Quaternion:newT( RL.QuaternionToAxisAngle( self ) )
return Vector3:new( axis ), angle
end
function Quaternion:fromEuler( pitch, yaw, roll )
return Quaternion:newT( RL.QuaternionFromEuler( pitch, yaw, roll ) )
end
function Quaternion:toEuler()
return Vector3:newT( RL.QuaternionToEuler( self ) )
end
function Quaternion:transform( mat )
return Quaternion:newT( RL.QuaternionTransform( self, mat ) )
end
local TEMP_COUNT = 100
local tempPool = {}
local curTemp = 1
for _ = 1, TEMP_COUNT do
table.insert( tempPool, Quaternion:new( 0, 0, 0, 1 ) )
end
-- Uses pre generated objects to avoid "slow" table generation.
function Quaternion:temp( x, y, z, w )
local object = tempPool[ curTemp ]
curTemp = curTemp + 1
if TEMP_COUNT < curTemp then
curTemp = 1
end
object.x = x or 0
object.y = y or 0
object.z = z or 0
object.w = w or 1
return object
end
-- Uses pre generated objects to avoid "slow" table generation.
function Quaternion:tempT( t )
local object = tempPool[ curTemp ]
curTemp = curTemp + 1
if TEMP_COUNT < curTemp then
curTemp = 1
end
object.x, object.y, object.z, object.w = table.unpack( t )
return object
end
function Quaternion:getTempId()
return curTemp
end
return Quaternion
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