- Move functionality to init.lua: - Player step event handling - Rotation state is stored in rotating_state - Calls hud.update_player_hud - Punch node event uses rotating_state - Add utility functions: - Rotate box by a specified facedir value - Find node's current (rotated) selection box - Find pointed-at node's closest edgemain
parent
ea4b9c49c1
commit
5115aedcb7
6 changed files with 194 additions and 69 deletions
@ -1,44 +1,37 @@ |
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local ipairs |
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= ipairs |
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local minetest, nodecore |
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= minetest, nodecore |
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local rotate = include("rotate") |
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local nodecore |
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= nodecore |
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local LABEL_ROTATION_HINT = "rotation hint" |
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local TEX_ROTATE_CLOCKWISE = "nc_extended_rotating_hud_rotate_clockwise.png" |
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local TEX_ROTATE_COUNTER_CLOCKWISE = "nc_extended_rotating_hud_rotate_counter_clockwise.png" |
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local function do_player_rotating_checks(player, data) |
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local pt = data.raycast() |
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local node = pt and pt.type == "node" and minetest.get_node(pt.under) |
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local TEX_ROTATE_FACE = "nc_extended_rotating_hud_rotate_face.png" |
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local TEX_ROTATE_EDGE = "nc_extended_rotating_hud_rotate_edge.png" |
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if node and rotate.is_rotatable(node) then |
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local is_sneaking = player:get_player_control().sneak |
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local texture = is_sneaking and TEX_ROTATE_COUNTER_CLOCKWISE or TEX_ROTATE_CLOCKWISE |
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local hud = {} |
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nodecore.hud_set(player, { |
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local function crosshair_hud_element(texture) |
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return { |
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label = LABEL_ROTATION_HINT, |
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hud_elem_type = "image", |
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text = texture .. "^[opacity:" .. 192, |
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text = texture, |
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position = { x = 0.5, y = 0.5 }, |
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offset = { x = 0, y = 0 }, |
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alignment = { x = 0, y = 0 }, |
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scale = { x = 1, y = 1 }, |
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quick = true |
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}) |
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} |
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end |
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local function update_player_hud(player, state) |
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local mode = state and state.mode |
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if mode == "face" then |
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local texture = TEX_ROTATE_FACE |
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if state.invert then texture = texture .. "^[transformFX" end |
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texture = texture .. "^[opacity:" .. 192 |
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nodecore.hud_set(player, crosshair_hud_element(texture)) |
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else |
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nodecore.hud_set(player, { |
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label = LABEL_ROTATION_HINT, |
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ttl = 0 |
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}) |
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nodecore.hud_set(player, { label = LABEL_ROTATION_HINT, ttl = 0 }) |
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end |
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end |
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hud.update_player_hud = update_player_hud |
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nodecore.register_playerstep({ |
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label = "crosshair", |
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priority = -101, |
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action = do_player_rotating_checks, |
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}) |
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return hud |
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@ -1,21 +1,66 @@ |
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local minetest, vector, include |
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= minetest, vector, include |
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local minetest, vector, nodecore, include |
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= minetest, vector, nodecore, include |
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local rotate = include("rotate") |
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local hud = include("hud") |
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local rotate = include("rotate") |
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local utility = include("utility") |
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minetest.register_on_punchnode(function(pos, node, puncher, pointed_thing) |
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local def = minetest.registered_nodes[node.name] |
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if def.paramtype2 ~= "facedir" then return end |
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-- TODO: Add crosshair indicators for rotating around edges. |
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-- TODO: Register only the nodes that should be rotatable. |
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-- TODO: Replace `on_rightclick` of intended nodes. |
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-- TODO: Add some more comments. |
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-- Distance at which we want to rotate by "pushing" on an edge. |
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local EDGE_DISTANCE = 1.5 / 16 -- 1.5 texels (at 16² texture resolution) |
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local rotating_state = {} |
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nodecore.register_playerstep({ |
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label = "extended rotating update", |
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action = function(player, player_data) |
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local name = player:get_player_name() |
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local state = {}; rotating_state[name] = state |
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local pointed_thing = player_data.raycast() |
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if (not pointed_thing) or pointed_thing.type ~= "node" then return nil end |
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state.pos = pointed_thing.under |
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state.node = minetest.get_node(state.pos) |
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if not rotate.is_rotatable(state.node) then return end |
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-- Vector that points away from the punched face. |
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if (not pointed_thing.above) or (not pointed_thing.under) then return end |
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local axis = vector.subtract(pointed_thing.above, pointed_thing.under) |
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if vector.equals(pointed_thing.above, pointed_thing.under) then return end |
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state.face = pointed_thing.above - pointed_thing.under |
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local edge, distance = utility.find_closest_edge(state.node, pointed_thing) |
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if edge and distance > EDGE_DISTANCE then |
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state.axis = state.face |
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state.mode = "face" |
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else |
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state.axis = state.face:cross(edge):normalize():round() |
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state.mode = "edge" |
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end |
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state.invert = player:get_player_control().sneak |
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hud.update_player_hud(player, state) |
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end, |
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}) |
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minetest.register_on_leaveplayer(function(player) |
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local name = player:get_player_name() |
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rotating_state[name] = nil |
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end) |
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minetest.register_on_punchnode(function(pos, node, puncher, pointed_thing) |
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if not minetest.is_player(puncher) then return end |
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local name = puncher:get_player_name() |
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local state = rotating_state[name] |
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if not state then return end |
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-- Rotate clockwise by default. |
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local degrees = -90 |
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-- If player is sneaking, reverse the rotation. |
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if minetest.is_player(puncher) and puncher:get_player_control().sneak then degrees = -degrees end |
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-- Make sure we're still the same node that we raycasted in `playerstep`. |
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if not vector.equals(pos, state.pos) then return end |
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if node.name ~= state.node.name or node.param2 ~= state.node.param2 then return end |
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rotate.rotate_node(pos, node, axis, degrees) |
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local degrees = state.invert and 90 or -90 |
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rotate.rotate_node(state.pos, state.node, state.axis, degrees) |
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end) |
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Before Width: | Height: | Size: 4.9 KiB After Width: | Height: | Size: 4.9 KiB |
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Before Width: | Height: | Size: 4.9 KiB After Width: | Height: | Size: 4.9 KiB |
@ -1,16 +1,67 @@ |
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local ipairs, tostring |
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= ipairs, tostring |
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local minetest |
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= minetest |
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local math_abs, math_sign |
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= math.abs, math.sign |
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local minetest, vector, include |
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= minetest, vector, include |
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local rotate = include("rotate") |
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local utility = {} |
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local function debug_tell(...) |
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local text = "" |
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for _, v in ipairs({...}) do text = text .. tostring(v) end |
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minetest.chat_send_all(text) |
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-- Default selection boxes for a node that doesn't have one them explicitly. |
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local DEFAULT_SELECTION_BOX = { min = vector.new(-0.5, -0.5, -0.5), |
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max = vector.new( 0.5, 0.5, 0.5) } |
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-- Gets the active `selection_box` for the specified `node` which |
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-- has a `paramtype2` of `facedir`, based on its `param2` value. |
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local function get_node_active_selection_box(node) |
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local def = minetest.registered_nodes[node.name] |
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local box = def.selection_box and def.selection_box.fixed |
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-- No need to rotate the default selection box. |
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if not box then return DEFAULT_SELECTION_BOX end |
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-- If node definition specifies multiple selection boxes, just pick the first (for now). |
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if type(box[1]) == "table" then box = box[1] end |
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-- Transform the `{ x1, y1, z1, x2, y2, z2 }` box to a `{ min, max }` one. |
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box = { min = vector.new(box[1], box[2], box[3]), |
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max = vector.new(box[4], box[5], box[6]) } |
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-- Rotate the box to face `facedir`. |
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rotate.rotate_box_by_facedir(box, node.param2) |
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return box |
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end |
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-- Finds the closest edge of the node the player is looking at as |
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-- a vector pointing away from the center, and the distance to it. |
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local function find_closest_edge(node, pointed_thing) |
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-- For this math to work, we assume that selection box is centered. |
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local max = get_node_active_selection_box(node).max |
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-- Point relative to the collision box we're pointing at. |
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local point = pointed_thing.intersection_point - pointed_thing.under |
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-- Find the edge we're closest to. |
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local vec = vector.zero() |
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if math_abs(point.y / point.x) > max.x / max.y then |
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vec.y = math_sign(point.y) |
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if math_abs(point.z / point.x) > max.x / max.z |
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then vec.z = math_sign(point.z) |
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else vec.x = math_sign(point.x) |
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end |
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else |
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vec.x = math_sign(point.x) |
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if math_abs(point.z / point.y) > max.y / max.z |
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then vec.z = math_sign(point.z) |
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else vec.y = math_sign(point.y) |
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end |
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end |
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local d = 1 |
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local v = max - point:multiply(vec):apply(math_abs) |
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local EPSILON = tonumber("1.19e-07") |
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if math_abs(v.x) > EPSILON and v.x < d then d = v.x end |
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if math_abs(v.y) > EPSILON and v.y < d then d = v.y end |
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if math_abs(v.z) > EPSILON and v.z < d then d = v.z end |
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return vec, d |
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end |
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utility.debug_tell = debug_tell |
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utility.find_closest_edge = find_closest_edge |
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return utility |
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