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nc_extended_rotating
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compare: copygirl:28de8125fd2bccde084554c7469883aa8a590caa
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4 Commits
b923879b5b ... 28de8125fd

Author SHA1 Message Date
copygirl 28de8125fd Add screenshot to README
7 months ago
copygirl f5185a0223 Add rotation hint entity
7 months ago
copygirl 1075257bb1 Export get_node_active_selection_box
7 months ago
copygirl 4c528793c3 Fix state calculation returning incorrect mode
7 months ago
11 changed files with 1056 additions and 9 deletions
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  1. 2
      README.md
  2. BIN
      docs/screenshot.png
  3. 89
      entity.lua
  4. 6
      init.lua
  5. BIN
      models/arrows.blend
  6. 265
      models/nc_extended_rotating_corner.obj
  7. 469
      models/nc_extended_rotating_edge.obj
  8. 223
      models/nc_extended_rotating_face.obj
  9. 2
      state.lua
  10. BIN
      textures/nc_extended_rotating_arrows.png
  11. 9
      utility.lua

2
README.md
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@ -5,6 +5,8 @@ This mod follows in the footsteps of the useful [Extended Placement] mod for
as optics and doors easily, without having to cycle through all possible
rotations every time.
![Screenshot](docs/screenshot.png)
Rotating a node can be done in three ways:
- Click near the center of a face, and the node rotates 90° around it.

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89
entity.lua
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@ -0,0 +1,89 @@
local minetest, vector, math_rad, math_random
= minetest, vector, math.rad, math.random
local get_node_active_selection_box = nc_extended_rotating.utility.get_node_active_selection_box;
local TAU = math.pi * 2
local MOD_NAME = minetest.get_current_modname()
local ARROWS_FACE = MOD_NAME .. ":arrows_face"
local ARROWS_EDGE = MOD_NAME .. ":arrows_edge"
local ARROWS_CORNER = MOD_NAME .. ":arrows_corner"
local entities_per_player = {}
local function register_entity(name, mesh, rot_speed)
minetest.register_entity(name, {
initial_properties = {
visual = "mesh",
mesh = mesh,
textures = { "nc_extended_rotating_arrows.png^[opacity:192" },
use_texture_alpha = true,
pointable = false, -- Can't be interacted with.
static_save = false, -- Doesn't get saved.
automatic_rotate = math_rad(rot_speed), -- Rotation in degrees per second.
},
on_deactivate = function(self, removal)
if not self.player_name then return end
entities_per_player[self.player_name] = nil
end,
})
end
register_entity(ARROWS_FACE , "nc_extended_rotating_face.obj" , 120)
register_entity(ARROWS_EDGE , "nc_extended_rotating_edge.obj" , 60)
register_entity(ARROWS_CORNER, "nc_extended_rotating_corner.obj", 120)
minetest.register_on_leaveplayer(function(player, timed_out)
local name = player:get_player_name()
local arrows = entities_per_player[name]
if arrows then arrows.object:remove() end
end)
local entity = {}
function entity.update_entity_hint(player, state)
local name = player:get_player_name()
local arrows = entities_per_player[name]
if state then
if arrows then
if state.pos == arrows.prev_pos and state.axis == arrows.prev_axis and state.invert == arrows.prev_invert then
-- No changes were made, so skip creating a new entity.
return
else
-- Changes were made, delete the old entity.
-- We do this to avoid rotation interpolation from `set_rotation`.
arrows.object:remove()
arrows = nil
end
end
local ent, off
if state.mode == "face" then ent, off = ARROWS_FACE , state.axis / 1.85
elseif state.mode == "edge" then ent, off = ARROWS_EDGE , vector.new(0, 0, 0)
elseif state.mode == "corner" then ent, off = ARROWS_CORNER, state.axis / 2.65
end
local box = get_node_active_selection_box(state.node)
local max = box.max - box.min
local pos = state.pos + off:multiply(max)
local rot = vector.dir_to_rotation(state.axis)
rot.x = rot.x + (state.invert and -TAU/4 or TAU/4)
arrows = minetest.add_entity(pos, ent):get_luaentity()
arrows.object:set_properties({ visual_size = max })
arrows.object:set_rotation(rot)
arrows.player_name = name
arrows.prev_pos = state.pos
arrows.prev_axis = state.axis
arrows.prev_invert = state.invert
entities_per_player[name] = arrows
elseif arrows then
arrows.object:remove()
end
end
return entity

6
init.lua
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@ -6,8 +6,10 @@ nc_extended_rotating.hud = include("hud")
nc_extended_rotating.registry = include("registry")
nc_extended_rotating.rotate = include("rotate")
nc_extended_rotating.utility = include("utility") -- Depends on `rotate`.
nc_extended_rotating.entity = include("entity") -- Depends on `utility`.
nc_extended_rotating.state = include("state") -- Depends on `registry`, `rotate` and `utility`.
local update_entity_hint = nc_extended_rotating.entity.update_entity_hint
local update_player_hud = nc_extended_rotating.hud.update_player_hud
local is_rotatable = nc_extended_rotating.registry.is_rotatable
local register_rotatable = nc_extended_rotating.registry.register_rotatable;
@ -16,16 +18,14 @@ local update_rotating_state = nc_extended_rotating.state.update_rotating_state
local get_rotating_state = nc_extended_rotating.state.get_rotating_state
-- TODO: Fix HUD showing rotation hint when we wouldn't / can't rotate.
-- TODO: Add crosshair indicators for rotating around corners.
-- TODO: Use Aux1 control to use NodeCore's built-in rotation?
-- TODO: Add some more comments.
-- TODO: Add particles to preview rotation?
nodecore.register_playerstep({
label = "nc_extended_rotating:update",
action = function(player, data)
local state = update_rotating_state(player, data)
update_player_hud(player, state)
update_entity_hint(player, state)
end,
})

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models/nc_extended_rotating_corner.obj
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# Blender v3.6.4 OBJ File: 'arrows.blend'
# www.blender.org
mtllib nc_extended_rotating_corner.mtl
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usemtl None
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# Blender v3.6.4 OBJ File: 'arrows.blend'
# www.blender.org
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223
models/nc_extended_rotating_face.obj
Unescape View File

@ -0,0 +1,223 @@
# Blender v3.6.4 OBJ File: 'arrows.blend'
# www.blender.org
mtllib nc_extended_rotating_face.mtl
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vt 0.737500 0.737500
vt 0.737500 0.595000
vt 0.500000 0.975000
vt 0.737500 0.452500
vt 0.737500 0.310000
vt 0.262500 0.310000
vt 0.262500 0.167500
vt 0.262500 0.025000
vt 0.262500 0.025000
vt 0.262500 0.796875
vt 0.262500 0.796875
vt 0.737500 0.796875
vt 0.737500 0.796875
vt 0.737500 0.452500
vn 0.9239 0.0000 0.3827
vn 0.0000 1.0000 0.0000
vn -0.7071 0.0000 0.7071
vn 1.0000 0.0000 -0.0000
vn -0.3827 0.0000 0.9239
vn 0.3827 0.0000 -0.9239
vn -0.5000 0.0000 -0.8660
vn 0.0000 -1.0000 0.0000
vn -0.9239 0.0000 0.3827
vn -0.9239 0.0000 -0.3827
vn 0.0000 0.0000 1.0000
vn 0.0000 0.0000 -1.0000
vn 0.9239 0.0000 -0.3827
vn 0.7071 0.0000 -0.7071
vn -0.5000 0.0000 0.8660
vn -0.5556 0.0000 0.8315
vn -1.0000 0.0000 0.0000
vn 0.5000 0.0000 0.8660
vn 0.5000 0.0000 -0.8660
vn 0.5556 0.0000 -0.8315
usemtl None
s off
f 2/1/1 22/2/1 5/3/1 3/4/1
f 30/5/2 29/6/2 6/7/2 5/3/2
f 12/8/3 15/9/3 8/10/3 13/11/3
f 25/12/2 27/13/2 23/14/2
f 26/15/4 25/12/4 23/14/4 24/16/4
f 9/17/5 12/8/5 13/11/5 19/18/5
f 14/19/6 11/20/6 16/21/6 10/22/6
f 28/23/7 27/13/7 25/12/7 26/15/7
f 11/20/8 14/19/8 12/8/8 9/17/8
f 17/24/8 20/25/8 18/26/8 15/9/8
f 15/9/9 18/26/9 29/6/9 8/10/9
f 21/27/10 1/28/10 4/29/10 6/7/10
f 5/3/2 6/7/2 4/29/2 3/4/2
f 9/17/11 19/18/11 31/30/11 33/31/11
f 20/25/8 22/2/8 21/27/8 18/26/8
f 34/32/8 11/20/8 9/17/8 33/31/8
f 19/18/2 16/21/2 32/33/2 31/30/2
f 7/34/2 8/10/2 29/6/2 30/5/2
f 10/22/2 13/11/2 8/10/2 7/34/2
f 14/19/8 17/24/8 15/9/8 12/8/8
f 16/21/2 19/18/2 13/11/2 10/22/2
f 28/23/8 26/15/8 24/16/8
f 22/2/4 20/25/4 30/5/4 5/3/4
f 22/2/8 2/1/8 1/28/8 21/27/8
f 32/33/12 16/21/12 11/20/12 34/32/12
f 20/25/13 17/24/13 7/34/13 30/5/13
f 17/24/14 14/19/14 10/22/14 7/34/14
f 24/16/15 23/14/15 27/13/15 28/23/15
f 2/1/16 3/4/16 4/29/16 1/28/16
f 18/26/17 21/27/17 6/7/17 29/6/17
f 31/30/17 32/33/17 34/32/17 33/31/17
f 36/35/10 56/36/10 39/37/10 37/38/10
f 64/39/2 63/40/2 40/41/2 39/37/2
f 46/42/14 49/43/14 42/44/14 47/45/14
f 59/46/2 61/47/2 57/48/2
f 60/49/17 59/46/17 57/48/17 58/50/17
f 43/51/6 46/42/6 47/45/6 53/52/6
f 48/53/5 45/54/5 50/55/5 44/56/5
f 62/57/18 61/47/18 59/46/18 60/49/18
f 45/54/8 48/53/8 46/42/8 43/51/8
f 51/58/8 54/59/8 52/60/8 49/43/8
f 49/43/13 52/60/13 63/40/13 42/44/13
f 55/61/1 35/62/1 38/63/1 40/41/1
f 39/37/2 40/41/2 38/63/2 37/38/2
f 43/51/12 53/52/12 65/64/12 67/65/12
f 54/59/8 56/36/8 55/61/8 52/60/8
f 68/66/8 45/54/8 43/51/8 67/65/8
f 53/52/2 50/55/2 66/67/2 65/64/2
f 41/68/2 42/44/2 63/40/2 64/39/2
f 44/56/2 47/45/2 42/44/2 41/68/2
f 48/53/8 51/58/8 49/43/8 46/42/8
f 50/55/2 53/52/2 47/45/2 44/56/2
f 62/57/8 60/49/8 58/50/8
f 56/36/17 54/59/17 64/39/17 39/37/17
f 56/36/8 36/35/8 35/62/8 55/61/8
f 66/67/11 50/55/11 45/54/11 68/66/11
f 54/59/9 51/58/9 41/68/9 64/39/9
f 51/58/3 48/53/3 44/56/3 41/68/3
f 58/50/19 57/48/19 61/47/19 62/57/19
f 36/35/20 37/38/20 38/63/20 35/62/20
f 52/60/4 55/61/4 40/41/4 63/40/4
f 65/64/4 66/67/4 68/66/4 67/65/4

2
state.lua
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@ -52,7 +52,7 @@ local function calculate_rotating_state(player, data)
local num = math_round(r.x * r.x + r.y * r.y + r.z * r.z) -- Squared length.
if num == 1 then state.mode = "face"
elseif num == 2 then state.mode = "edge"; state.axis = state.face:cross(r)
elseif num == 3 then state.mode = "mirror"; degrees = 120
elseif num == 3 then state.mode = "corner"; degrees = 120
end
-- Sneaking causes the direction of the rotation to be inverted.

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textures/nc_extended_rotating_arrows.png
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9
utility.lua
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@ -8,9 +8,11 @@ local rotate_box_by_facedir = nc_extended_rotating.rotate.rotate_box_by_facedir
local DEFAULT_SELECTION_BOX = { min = vector.new(-0.5, -0.5, -0.5),
max = vector.new( 0.5, 0.5, 0.5) }
local utility = {}
-- Gets the active `selection_box` for the specified `node` which
-- has a `paramtype2` of `facedir`, based on its `param2` value.
local function get_node_active_selection_box(node)
function utility.get_node_active_selection_box(node)
local def = minetest.registered_nodes[node.name]
local box = def.selection_box and def.selection_box.fixed
-- No need to rotate the default selection box.
@ -25,15 +27,12 @@ local function get_node_active_selection_box(node)
return box
end
local utility = {}
-- Calculates the rotation vector from where a player is looking at on this node.
-- * If looking near an edge, the vector points in the direction of that edge.
-- * If looking near a corner, the vector similarly points in that direction.
-- * Otherwise, vector simply points away from the face.
function utility.rotation_vector_from_lookat(node, pointed_thing, edge_distance)
local box = get_node_active_selection_box(node)
local box = utility.get_node_active_selection_box(node)
local center = (box.min + box.max) / 2
-- Calculate bounds, single vector describing the size of the selection box.

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