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Face awareness

master
khonkhortisan 2013-04-05 23:08:09 -07:00
parent 9f6c28d8a9
commit c4c03bc406
1 changed files with 97 additions and 15 deletions
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112
init.lua
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@ -226,9 +226,11 @@ local function rotate_cube(pos, dir, clockwise, layer)
axes[2] = 1--x
end
sign = true
if dir.x == -1 or dir.y == -1 or dir.z == -1 then
clockwise = not clockwise
--still clockwise, just from the opposite perspective
sign = false
end
--start rotating
@ -253,10 +255,14 @@ local function rotate_cube(pos, dir, clockwise, layer)
if dir.x ~= 0 then turnaxis = 1
elseif dir.y ~= 0 then turnaxis = 2
else turnaxis = 3 end
--print(minetest.registered_nodes['rubiks:cubelet'].tiles[getface(loadcubelet.node.param2, turnaxis, negative)])
--place it
minetest.env:add_node(pos2, {name = name, param2 =
axisRotate(loadcubelet.node.param2, turnaxis, clockwise and 90 or -90)
})
--
--print(colors[getface(loadcubelet.node.param2, turnaxis, sign)])
--
local meta = minetest.env:get_meta(pos2)
meta:from_table(loadcubelet.meta)
end
@ -345,12 +351,14 @@ function axisRotate(facedir, turnaxis, turnrot)
rot = (rot + turnrot) % 4
else
for r = 0, turnrot-1 do
if axis == 0 then axis = 1
elseif axis == 1 then axis = 5
rot=rot+2
elseif axis == 5 then axis = 2
rot=rot-2
else--[[axis == 2 then]]axis = 0
if axis == 0 then axis = 1
elseif axis == 1 then axis = 5
rot=(rot+2)%4
elseif axis == 5 then axis = 2
rot=(rot-2)%4
elseif axis == 2 then axis = 0
else
error("axisRotate: my bad")
end
end
end
@ -360,10 +368,12 @@ function axisRotate(facedir, turnaxis, turnrot)
rot = (rot + turnrot) % 4
else
for r = 0, turnrot-1 do
if axis == 1 then axis = 3
elseif axis == 3 then axis = 2
elseif axis == 2 then axis = 4
else--[[axis == 4 then]]axis = 1
if axis == 1 then axis = 3
elseif axis == 3 then axis = 2
elseif axis == 2 then axis = 4
elseif axis == 4 then axis = 1
else
error("axisRotate: my bad")
end rot = (rot + 1) % 4
end
end
@ -373,13 +383,85 @@ function axisRotate(facedir, turnaxis, turnrot)
rot = (rot + turnrot) % 4
else
for r = 0, turnrot-1 do
if axis == 0 then axis = 4
elseif axis == 4 then axis = 5
elseif axis == 5 then axis = 3
else--[[axis == 3 then]]axis = 0
if axis == 0 then axis = 4
elseif axis == 4 then axis = 5
elseif axis == 5 then axis = 3
elseif axis == 3 then axis = 0
else
error("axisRotate: my bad")
end
end
end
else
error("axisRotate: turnaxis not 1-3")
end
return --[[facedir = ]] axis * 4 + rot
facedir = axis * 4 + rot
return facedir
end
local function rotfaces(faces, turnaxis, turnrot)
turnrot = turnrot % 4
for r = 0, turnrot-1 do
if turnaxis == 1 then --x
torot = {1, 5, 2, 6}
elseif turnaxis == 2 then --y
torot = {6, 4, 5, 3}
elseif turnaxis == 3 then --z
torot = {1, 4, 2, 3}
else
error("rotfaces: turnaxis: my bad")
end
wraparound = faces[torot[3]]
faces[torot[3]] = faces[torot[2]]
faces[torot[2]] = faces[torot[1]]
faces[torot[1]] = wraparound
end
return faces
end
--untested
function getfaces(facedir)
--FIXME?
--tiles ±Y±X±Z
--facedir axes +Y±Z±X-Y
axis = math.floor(facedir / 4)
rot = facedir % 4
-- +Y -Y +X -X +Z -Z
faces = {1, 2, 3, 4, 5, 6}
if axis == 0 then -- +Y
turnaxis = 2
elseif axis == 1 then -- +Z
faces = rotfaces(faces, 1, 1) -- +X
turnaxis = 3
elseif axis == 2 then -- -Z
faces = rotfaces(faces, 1, -1) -- -X
turnaxis = 3
rot = -rot
elseif axis == 3 then -- +X
faces = rotfaces(faces, 3, -1) -- -Z
turnaxis = 1
elseif axis == 4 then -- -X
faces = rotfaces(faces, 3, 1) -- +Z
turnaxis = 1
rot = -rot
elseif axis == 5 then -- -Y
faces = rotfaces(faces, 3, 2)-- ±Z
turnaxis = 2
rot = -rot
else
error("getfaces: bad facedir: "..facedir..' '..axis..' '..rot)
end
return rotfaces(faces, turnaxis, rot)
end
function getface(facedir, axis, sign)
faces = getfaces(facedir)
return faces[
axis == 1 and (sign and 3 or 4) or (
axis == 2 and (sign and 1 or 2) or (
axis == 3 and (sign and 5 or 6)
)
)
]
end