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Add 'inverseOf' to love.Transform.

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Erin Maus
2026-06-24 12:30:12 -04:00
parent 84fe074d06
commit 574295064b
2 changed files with 22 additions and 0 deletions
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testing/tests/math.lua
+10
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@@ -145,6 +145,16 @@ love.test.math.Transform = function(test)
px, py = transform:transformPoint(0, 0)
test:assertCoords({-px, -py}, {ipx, ipy}, 'check inverse points transform')
-- check inverse and inverseOf produce same values
transform:reset()
transform:setTransformation(4, 4, math.pi / 2, 2, 2)
local inverseClone = transform:inverse()
local inverseDestinationTransform = love.math.newTransform()
inverseDestinationTransform:inverseOf(transform)
local opx1, opy1 = inverseClone:transformPoint(0, 0)
local opx2, opy2 = inverseDestinationTransform:transformPoint(0, 0)
test:assertCoords({opx1, opy1}, {opx2, opy2}, 'check inverse and inverseOf produce same values')
-- check matrix manipulation
transform:setTransformation(0, 0, 0, 1, 1, 0, 0, 0, 0)
transform:translate(4, 4)