minetest/games/devtest/mods/testtools/node_box_visualizer.lua

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local S = minetest.get_translator("testtools")
minetest.register_entity("testtools:visual_box", {
initial_properties = {
visual = "cube",
textures = {
"blank.png", "blank.png", "blank.png",
"blank.png", "blank.png", "blank.png",
},
use_texture_alpha = true,
physical = false,
pointable = false,
static_save = false,
},
on_activate = function(self)
self.timestamp = minetest.get_us_time() + 5000000
end,
on_step = function(self)
if minetest.get_us_time() >= self.timestamp then
self.object:remove()
end
end,
})
local BOX_TYPES = {"node_box", "collision_box", "selection_box"}
local DEFAULT_BOX_TYPE = "selection_box"
local function visualizer_on_use(itemstack, user, pointed_thing)
if pointed_thing.type ~= "node" then
return
end
local meta = itemstack:get_meta()
local box_type = meta:get("box_type") or DEFAULT_BOX_TYPE
local result = minetest.get_node_boxes(box_type, pointed_thing.under)
local t = "testtools_visual_" .. box_type .. ".png"
for _, box in ipairs(result) do
local box_min = pointed_thing.under + vector.new(box[1], box[2], box[3])
local box_max = pointed_thing.under + vector.new(box[4], box[5], box[6])
local box_center = (box_min + box_max) / 2
local obj = minetest.add_entity(box_center, "testtools:visual_box")
if not obj then
break
end
obj:set_properties({
textures = {t, t, t, t, t, t},
-- Add a small offset to avoid Z-fighting.
visual_size = vector.add(box_max - box_min, 0.01),
})
end
end
local function visualizer_on_place(itemstack, placer, pointed_thing)
local meta = itemstack:get_meta()
local prev_value = meta:get("box_type") or DEFAULT_BOX_TYPE
local prev_index = table.indexof(BOX_TYPES, prev_value)
assert(prev_index ~= -1)
local new_value = BOX_TYPES[(prev_index % #BOX_TYPES) + 1]
meta:set_string("box_type", new_value)
minetest.chat_send_player(placer:get_player_name(), S("[Node Box Visualizer] box_type = @1", new_value))
return itemstack
end
minetest.register_tool("testtools:node_box_visualizer", {
description = S("Node Box Visualizer") .. "\n" ..
S("Punch: Show node/collision/selection boxes of the pointed node") .. "\n" ..
S("Place: Change selected box type (default: selection box)"),
inventory_image = "testtools_node_box_visualizer.png",
groups = { testtool = 1, disable_repair = 1 },
on_use = visualizer_on_use,
on_place = visualizer_on_place,
on_secondary_use = visualizer_on_place,
})