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-rw-r--r--worldedit/cuboid.lua258
1 files changed, 258 insertions, 0 deletions
diff --git a/worldedit/cuboid.lua b/worldedit/cuboid.lua
new file mode 100644
index 0000000..ce20761
--- /dev/null
+++ b/worldedit/cuboid.lua
@@ -0,0 +1,258 @@
+-- Expands or contracts the cuboid in all axes by amount (positive or negative)
+worldedit.cuboid_volumetric_expand = function(name, amount)
+ local pos1 = worldedit.pos1[name]
+ local pos2 = worldedit.pos2[name]
+
+ if pos1 == nil or pos2 == nil then
+ return false, "Undefined cuboid"
+ end
+
+ local delta1 = vector.new()
+ local delta2 = vector.new()
+ local delta_dir1
+ local delta_dir2
+
+ delta1 = vector.add(delta1, amount)
+ delta2 = vector.add(delta2, amount)
+ delta_dir1, delta_dir2 = worldedit.get_expansion_directions(pos1, pos2)
+ delta1 = vector.multiply(delta1, delta_dir1)
+ delta2 = vector.multiply(delta2, delta_dir2)
+ worldedit.pos1[name] = vector.add(pos1, delta1)
+ worldedit.pos2[name] = vector.add(pos2, delta2)
+
+ return true
+end
+
+
+-- Expands or contracts the cuboid in a single axis by amount (positive or negative)
+worldedit.cuboid_linear_expand = function(name, axis, direction, amount)
+ local pos1 = worldedit.pos1[name]
+ local pos2 = worldedit.pos2[name]
+
+ if pos1 == nil or pos2 == nil then
+ return false, "undefined cuboid"
+ end
+
+ if direction ~= 1 and direction ~= -1 then
+ return false, "invalid marker"
+ end
+
+ local marker = worldedit.marker_get_closest_to_axis(name, axis, direction)
+ local deltavect = vector.new()
+
+ if axis == 'x' then
+ deltavect.x = amount * direction
+ elseif axis == 'y' then
+ deltavect.y = amount * direction
+ elseif axis == 'z' then
+ deltavect.z = amount * direction
+ else
+ return false, "invalid axis"
+ end
+
+ worldedit.marker_move(name, marker, deltavect)
+ return true
+end
+
+
+-- Shifts the cuboid by '+-amount' in axis 'axis'
+worldedit.cuboid_shift = function(name, axis, amount)
+ local pos1 = worldedit.pos1[name]
+ local pos2 = worldedit.pos2[name]
+
+ if pos1 == nil or pos2 == nil then
+ return false, "undefined cuboid"
+ end
+
+ if axis == 'x' then
+ worldedit.pos1[name].x = pos1.x + amount
+ worldedit.pos2[name].x = pos2.x + amount
+ elseif axis == 'y' then
+ worldedit.pos1[name].y = pos1.y + amount
+ worldedit.pos2[name].y = pos2.y + amount
+ elseif axis == 'z' then
+ worldedit.pos1[name].z = pos1.z + amount
+ worldedit.pos2[name].z = pos2.z + amount
+ else
+ return false, "invalid axis"
+ end
+
+ return true
+end
+
+
+-- Moves the location of a single marker by adding deltavector
+worldedit.marker_move = function(name, marker, deltavector)
+ if marker ~= 1 and marker ~= 2 then
+ return false
+ end
+
+ if marker == 1 then
+ local pos = worldedit.pos1[name]
+ worldedit.pos1[name] = vector.add(deltavector, pos)
+ else
+ local pos = worldedit.pos2[name]
+ worldedit.pos2[name] = vector.add(deltavector, pos)
+ end
+
+ return true
+end
+
+-- Updates the location ingame of the markers
+worldedit.marker_update = function(name, marker)
+ if marker == nil then
+ worldedit.mark_pos1(name)
+ worldedit.mark_pos2(name)
+ elseif marker == 1 then
+ worldedit.mark_pos1(name)
+ elseif marker == 2 then
+ worldedit.mark_pos2(name)
+ else
+ minetest.debug(
+ "worldedit: Invalid execution of function update_markers")
+ end
+end
+
+
+-- Returns two vectors with the directions for volumetric expansion
+worldedit.get_expansion_directions = function(mark1, mark2)
+ if mark1 == nil or mark2 == nil then
+ return
+ end
+ local dir1 = vector.new()
+ local dir2 = vector.new()
+
+ if mark1.x < mark2.x then
+ dir1.x = -1
+ dir2.x = 1
+ else
+ dir1.x = 1
+ dir2.x = -1
+ end
+ if mark1.y < mark2.y then
+ dir1.y = -1
+ dir2.y = 1
+ else
+ dir1.y = 1
+ dir2.y = -1
+ end
+ if mark1.z < mark2.z then
+ dir1.z = -1
+ dir2.z = 1
+ else
+ dir1.z = 1
+ dir2.z = -1
+ end
+ return dir1, dir2
+end
+
+
+-- Return the marker that is closest to the player
+worldedit.marker_get_closest_to_player = function(name)
+ local playerpos = minetest.get_player_by_name(name):getpos()
+ local dist1 = vector.distance(playerpos, worldedit.pos1[name])
+ local dist2 = vector.distance(playerpos, worldedit.pos2[name])
+
+ if dist1 < dist2 then
+ return 1
+ else
+ return 2
+ end
+end
+
+
+-- Returns the closest marker to the specified axis and direction
+worldedit.marker_get_closest_to_axis = function(name, axis, direction)
+ local pos1 = vector.new()
+ local pos2 = vector.new()
+
+ if direction ~= 1 and direction ~= -1 then
+ return nil
+ end
+
+ if axis == 'x' then
+ pos1.x = worldedit.pos1[name].x * direction
+ pos2.x = worldedit.pos2[name].x * direction
+ if pos1.x > pos2.x then
+ return 1
+ else
+ return 2
+ end
+ elseif axis == 'y' then
+ pos1.y = worldedit.pos1[name].y * direction
+ pos2.y = worldedit.pos2[name].y * direction
+ if pos1.y > pos2.y then
+ return 1
+ else
+ return 2
+ end
+ elseif axis == 'z' then
+ pos1.z = worldedit.pos1[name].z * direction
+ pos2.z = worldedit.pos2[name].z * direction
+ if pos1.z > pos2.z then
+ return 1
+ else
+ return 2
+ end
+ else
+ return nil
+ end
+end
+
+
+-- Translates up, down, left, right, front, back to their corresponding axes and
+-- directions according to faced direction
+worldedit.translate_direction = function(name, direction)
+ local axis, dir = worldedit.player_axis(name)
+ local resaxis, resdir
+
+ if direction == "up" then
+ return 'y', 1
+ end
+
+ if direction == "down" then
+ return 'y', -1
+ end
+
+ if direction == "front" then
+ if axis == "y" then
+ resaxis = nil
+ resdir = nil
+ else
+ resaxis = axis
+ resdir = dir
+ end
+ end
+
+ if direction == "back" then
+ if axis == "y" then
+ resaxis = nil
+ resdir = nil
+ else
+ resaxis = axis
+ resdir = -dir
+ end
+ end
+
+ if direction == "left" then
+ if axis == 'x' then
+ resaxis = 'z'
+ resdir = dir
+ elseif axis == 'z' then
+ resaxis = 'x'
+ resdir = -dir
+ end
+ end
+
+ if direction == "right" then
+ if axis == 'x' then
+ resaxis = 'z'
+ resdir = -dir
+ elseif axis == 'z' then
+ resaxis = 'x'
+ resdir = dir
+ end
+ end
+
+ return resaxis, resdir
+end \ No newline at end of file