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|
-- For luaJit compatibility.
if table.unpack == nil then
table.unpack = unpack
end
local Matrix = {}
local metatable = {
__index = Matrix,
__tostring = function( m )
return "{\n"
.." {"..m[1][1]..", "..m[1][2]..", "..m[1][3]..", "..m[1][4].."},\n"
.." {"..m[2][1]..", "..m[2][2]..", "..m[2][3]..", "..m[2][4].."},\n"
.." {"..m[3][1]..", "..m[3][2]..", "..m[3][3]..", "..m[3][4].."},\n"
.." {"..m[4][1]..", "..m[4][2]..", "..m[4][3]..", "..m[4][4].."},\n"
.."}"
end,
__add = function( m1, m2 )
return Matrix:new( RL.MatrixAdd( m1, m2 ) )
end,
__sub = function( m1, m2 )
return Matrix:new( RL.MatrixSubtract( m1, m2 ) )
end,
__mul = function( m1, m2 )
return Matrix:new( RL.MatrixMultiply( m1, m2 ) )
end,
__concat = function( a, b )
return tostring( a )..tostring( b )
end,
}
function Matrix:copyMatrix( orig )
if orig ~= nil then
for y = 1, 4 do
for x = 1, 4 do
if orig[x][y] ~= nil then
self[x][y] = orig[x][y]
end
end
end
end
end
function Matrix:new( m )
local object = setmetatable( {}, metatable )
-- Raylib style transposed matrix.
for x = 1, 4 do
object[x] = {}
for y = 1, 4 do
table.insert( object[x], m[x][y] )
end
end
return object
end
function Matrix:set( m )
self:copyMatrix( m )
end
function Matrix:serialize()
local str = { "Matrix:new({" }
for i, row in ipairs( self ) do
table.insert( str, "{" )
for c, v in ipairs( row ) do
table.insert( str, v )
if c < 4 then
table.insert( str, "," )
end
end
table.insert( str, "}" )
if i < 4 then
table.insert( str, "," )
end
end
table.insert( str, "})" )
return table.concat( str )
end
function Matrix:clone()
return Matrix:new( self )
end
function Matrix:determinant()
return RL.MatrixDeterminant( self )
end
function Matrix:trace()
return RL.MatrixTranspose( self )
end
function Matrix:transpose()
return Matrix:new( RL.MatrixTranspose( self ) )
end
function Matrix:multiply( m2 )
return Matrix:new( RL.MatrixMultiply( self, m2 ) )
end
function Matrix:invert()
return Matrix:new( RL.MatrixInvert( self ) )
end
function Matrix:identity()
return Matrix:new( RL.MatrixIdentity() )
end
function Matrix:translate( translate )
return Matrix:new( RL.MatrixTranslate( translate ) )
end
function Matrix:rotate( axis, angle )
return Matrix:new( RL.MatrixRotate( axis, angle ) )
end
function Matrix:rotateX( angle )
return Matrix:new( RL.MatrixRotateX( angle ) )
end
function Matrix:rotateY( angle )
return Matrix:new( RL.MatrixRotateY( angle ) )
end
function Matrix:rotateZ( angle )
return Matrix:new( RL.MatrixRotateZ( angle ) )
end
function Matrix:rotateXYZ( angles )
return Matrix:new( RL.MatrixRotateXYZ( angles ) )
end
function Matrix:rotateZYX( angles )
return Matrix:new( RL.MatrixRotateZYX( angles ) )
end
function Matrix:scale( scale )
return Matrix:new( RL.MatrixScale( scale ) )
end
function Matrix:frustrum( left, right, bottom, top, near, far )
return Matrix:new( RL.MatrixFrustum( left, right, bottom, top, near, far ) )
end
function Matrix:perspective( fovy, aspect, near, far )
return Matrix:new( RL.MatrixPerspective( fovy, aspect, near, far ) )
end
function Matrix:ortho( left, right, bottom, top, near, far )
return Matrix:new( RL.MatrixOrtho( left, right, bottom, top, near, far ) )
end
function Matrix:lookAt( eye, target, up )
return Matrix:new( RL.MatrixLookAt( eye, target, up ) )
end
-- Temp pre generated objects to avoid "slow" table generation.
local TEMP_COUNT = 100
local tempPool = {}
local curTemp = 1
for _ = 1, TEMP_COUNT do
table.insert( tempPool, Matrix:new( RL.MatrixIdentity() ) )
end
function Matrix:temp( m )
local object = tempPool[ curTemp ]
curTemp = curTemp < TEMP_COUNT and curTemp + 1 or 1
object:copyMatrix( m )
return object
end
function Matrix:getTempId()
return curTemp
end
return Matrix
|
