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-rw-r--r--tubes.lua79
1 files changed, 77 insertions, 2 deletions
diff --git a/tubes.lua b/tubes.lua
index 787001d..7056c4b 100644
--- a/tubes.lua
+++ b/tubes.lua
@@ -249,8 +249,6 @@ inv_texture="pipeworks_tube_inv.png"
register_tube("pipeworks:tube","Pneumatic tube segment",plain_textures,noctr_textures,end_textures,short_texture,inv_texture)
-
-
if enable_mese_tube then
mese_noctr_textures={"pipeworks_mese_tube_noctr_1.png","pipeworks_mese_tube_noctr_2.png","pipeworks_mese_tube_noctr_3.png",
@@ -578,3 +576,80 @@ if enable_mese_sand_tube then
end
})
end
+
+local function facedir_to_dir(facedir)
+ --a table of possible dirs
+ return ({{x=0, y=0, z=1},
+ {x=1, y=0, z=0},
+ {x=0, y=0, z=-1},
+ {x=-1, y=0, z=0},
+ {x=0, y=-1, z=0},
+ {x=0, y=1, z=0}})
+
+ --indexed into by a table of correlating facedirs
+ [({[0]=1, 2, 3, 4,
+ 5, 2, 6, 4,
+ 6, 2, 5, 4,
+ 1, 5, 3, 6,
+ 1, 6, 3, 5,
+ 1, 4, 3, 2})
+
+ --indexed into by the facedir in question
+ [facedir]]
+end
+
+local function facedir_to_right_dir(facedir)
+
+ --find the other directions
+ local backdir = facedir_to_dir(facedir)
+ local topdir = ({[0]={x=0, y=1, z=0},
+ {x=0, y=0, z=1},
+ {x=0, y=0, z=-1},
+ {x=1, y=0, z=0},
+ {x=-1, y=0, z=0},
+ {x=0, y=-1, z=0}})[math.floor(facedir/4)]
+
+ --return a cross product
+ return {x=topdir.y*backdir.z - backdir.y*topdir.z,
+ y=topdir.z*backdir.x - backdir.z*topdir.x,
+ z=topdir.x*backdir.y - backdir.x*topdir.y}
+end
+
+if enable_one_way_tube then
+ minetest.register_node("pipeworks:one_way_tube", {
+ description = "One way tube",
+ tiles = {"pipeworks_one_way_tube_top.png", "pipeworks_one_way_tube_top.png", "pipeworks_one_way_tube_output.png",
+ "pipeworks_one_way_tube_input.png", "pipeworks_one_way_tube_side.png", "pipeworks_one_way_tube_top.png"},
+ paramtype2 = "facedir",
+ drawtype = "nodebox",
+ node_box = {type="fixed",
+ fixed = {{-1/2, -9/64, -9/64, 1/2, 9/64, 9/64}}},
+ groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2,tubedevice=1,tubedevice_receiver=1},
+ legacy_facedir_simple = true,
+ sounds = default.node_sound_wood_defaults(),
+ after_place_node = function(pos)
+ tube_scanforobjects(pos)
+ end,
+ after_dig_node = function(pos)
+ tube_scanforobjects(pos)
+ end,
+ tube={connect_sides={left=1, right=1},
+ can_go=function(pos,node,velocity,stack)
+ return velocity
+ end,
+ insert_object = function(pos,node,stack,direction)
+ item1=tube_item(pos,stack)
+ item1:get_luaentity().start_pos = pos
+ item1:setvelocity(direction)
+ item1:setacceleration({x=0, y=0, z=0})
+ return ItemStack("")
+ end,
+ can_insert=function(pos,node,stack,direction)
+ local dir = facedir_to_right_dir(node.param2)
+ if dir.x == direction.x and dir.y == direction.y and dir.z == direction.z then
+ return true
+ end
+ return false
+ end},
+ })
+end