mirror of
https://github.com/minetest/minetest.git
synced 2024-11-09 17:23:45 +01:00
97 lines
3.1 KiB
Lua
97 lines
3.1 KiB
Lua
local function color(hex)
|
|
return ("blank.png^[noalpha^[colorize:#%06X:255"):format(hex)
|
|
end
|
|
|
|
local function random_color()
|
|
return color(math.random(0, 0xFFFFFF))
|
|
end
|
|
|
|
local function random_rotation()
|
|
return 2 * math.pi * vector.new(math.random(), math.random(), math.random())
|
|
end
|
|
|
|
local active_selectionbox_entities = 0 -- count active entities
|
|
|
|
minetest.register_entity("testentities:selectionbox", {
|
|
initial_properties = {
|
|
visual = "cube",
|
|
infotext = "Punch to randomize rotation, rightclick to toggle rotation"
|
|
},
|
|
on_activate = function(self)
|
|
active_selectionbox_entities = active_selectionbox_entities + 1
|
|
|
|
local w, h, l = math.random(), math.random(), math.random()
|
|
self.object:set_properties({
|
|
textures = {random_color(), random_color(), random_color(), random_color(), random_color(), random_color()},
|
|
selectionbox = {rotate = true, -w/2, -h/2, -l/2, w/2, h/2, l/2},
|
|
visual_size = vector.new(w, h, l),
|
|
automatic_rotate = 2 * math.pi * (math.random() - 0.5)
|
|
})
|
|
assert(self.object:get_properties().selectionbox.rotate)
|
|
self.object:set_armor_groups({punch_operable = 1})
|
|
self.object:set_rotation(random_rotation())
|
|
end,
|
|
on_deactivate = function()
|
|
active_selectionbox_entities = active_selectionbox_entities - 1
|
|
end,
|
|
on_punch = function(self)
|
|
self.object:set_rotation(random_rotation())
|
|
end,
|
|
on_rightclick = function(self)
|
|
self.object:set_properties({
|
|
automatic_rotate = self.object:get_properties().automatic_rotate == 0 and 2 * math.pi * (math.random() - 0.5) or 0
|
|
})
|
|
end
|
|
})
|
|
|
|
local hud_ids = {}
|
|
minetest.register_globalstep(function()
|
|
if active_selectionbox_entities == 0 then
|
|
return
|
|
end
|
|
|
|
for _, player in pairs(minetest.get_connected_players()) do
|
|
local offset = player:get_eye_offset()
|
|
offset.y = offset.y + player:get_properties().eye_height
|
|
local pos1 = vector.add(player:get_pos(), offset)
|
|
local raycast = minetest.raycast(pos1, vector.add(pos1, vector.multiply(player:get_look_dir(), 10)), true, false)
|
|
local pointed_thing = raycast()
|
|
if pointed_thing.ref == player then
|
|
pointed_thing = raycast()
|
|
end
|
|
local remove_hud_element = true
|
|
local pname = player:get_player_name()
|
|
local hud_id = hud_ids[pname]
|
|
if pointed_thing and pointed_thing.type == "object" then
|
|
local ent = pointed_thing.ref:get_luaentity()
|
|
if ent and ent.name == "testentities:selectionbox" then
|
|
hud_ids[pname] = hud_id or player:hud_add({
|
|
hud_elem_type = "text", -- See HUD element types
|
|
position = {x=0.5, y=0.5},
|
|
text = "X",
|
|
number = 0xFF0000,
|
|
alignment = {x=0, y=0},
|
|
})
|
|
local shade = math.random(0, 0xFF)
|
|
minetest.add_particle({
|
|
-- Random shade of red for the intersection point
|
|
texture = color(0x10000 * shade),
|
|
pos = pointed_thing.intersection_point,
|
|
size = 0.1
|
|
})
|
|
minetest.add_particle({
|
|
-- Same shade of green for the corresponding intersection normal
|
|
texture = color(0x100 * shade),
|
|
pos = vector.add(pointed_thing.intersection_point, pointed_thing.intersection_normal * 0.1),
|
|
size = 0.1
|
|
})
|
|
remove_hud_element = false
|
|
end
|
|
end
|
|
if remove_hud_element and hud_id then
|
|
player:hud_remove(hud_id)
|
|
hud_ids[pname] = nil
|
|
end
|
|
end
|
|
end)
|