VoxeLibre/mods/ITEMS/mcl_compass/init.lua
2020-11-25 12:47:27 +01:00

124 lines
3.9 KiB
Lua

local S = minetest.get_translator("mcl_compass")
mcl_compass = {}
local compass_frames = 32
local default_spawn_settings = minetest.settings:get("static_spawnpoint")
-- Timer for random compass spinning
local random_timer = 0
local random_timer_trigger = 0.5 -- random compass spinning tick in seconds. Increase if there are performance problems
local random_frame = math.random(0, compass_frames-1)
minetest.register_globalstep(function(dtime)
random_timer = random_timer + dtime
local players = minetest.get_connected_players()
if random_timer >= random_timer_trigger then
random_frame = (random_frame + math.random(-1, 1)) % compass_frames
random_timer = 0
end
for i,player in ipairs(players) do
local function has_compass(player)
for _,stack in ipairs(player:get_inventory():get_list("main")) do
if minetest.get_item_group(stack:get_name(), "compass") ~= 0 then
return true
end
end
return false
end
if has_compass(player) then
local pos = player:get_pos()
local dim = mcl_worlds.pos_to_dimension(pos)
local compass_image
-- Compasses do not work in certain zones
if not mcl_worlds.compass_works(pos) then
compass_image = random_frame
else
local spawn = {x=0,y=0,z=0}
local ssp = minetest.setting_get_pos("static_spawnpoint")
if ssp then
spawn = ssp
if type(spawn) ~= "table" or type(spawn.x) ~= "number" or type(spawn.y) ~= "number" or type(spawn.z) ~= "number" then
spawn = {x=0,y=0,z=0}
end
end
local dir = player:get_look_horizontal()
local angle_north = math.deg(math.atan2(spawn.x - pos.x, spawn.z - pos.z))
if angle_north < 0 then angle_north = angle_north + 360 end
local angle_dir = -math.deg(dir)
local angle_relative = (angle_north - angle_dir + 180) % 360
compass_image = math.floor((angle_relative/11.25) + 0.5) % compass_frames
end
for j,stack in ipairs(player:get_inventory():get_list("main")) do
if minetest.get_item_group(stack:get_name(), "compass") ~= 0 and
minetest.get_item_group(stack:get_name(), "compass")-1 ~= compass_image then
local itemname = "mcl_compass:"..compass_image
if mcl_enchanting.is_enchanted(stack:get_name()) then
itemname = itemname .. "_enchanted"
end
stack:set_name(itemname)
player:get_inventory():set_stack("main", j, stack)
end
end
end
end
end)
local images = {}
for frame = 0, compass_frames-1 do
local s = string.format("%02d", frame)
table.insert(images, "mcl_compass_compass_"..s..".png")
end
local doc_mod = minetest.get_modpath("doc") ~= nil
local stereotype_frame = 18
for i,img in ipairs(images) do
local inv = 1
if i == stereotype_frame then
inv = 0
end
local use_doc, longdesc, usagehelp, tt
use_doc = i == stereotype_frame
if use_doc then
tt = S("Points to the world origin")
longdesc = S("Compasses are tools which point to the world origin (X=0, Z=0) or the spawn point in the Overworld.")
end
local itemstring = "mcl_compass:"..(i-1)
minetest.register_craftitem(itemstring, {
description = S("Compass"),
_tt_help = tt,
_doc_items_create_entry = use_doc,
_doc_items_longdesc = longdesc,
_doc_items_usagehelp = usagehelp,
inventory_image = img,
wield_image = img,
stack_max = 64,
groups = {not_in_creative_inventory=inv, compass=i, tool=1, disable_repair=1, enchantability=1 }
})
-- Help aliases. Makes sure the lookup tool works correctly
if not use_doc and doc_mod then
doc.add_entry_alias("craftitems", "mcl_compass:"..(stereotype_frame-1), "craftitems", itemstring)
end
end
minetest.register_craft({
output = 'mcl_compass:'..stereotype_frame,
recipe = {
{'', 'mcl_core:iron_ingot', ''},
{'mcl_core:iron_ingot', 'mesecons:redstone', 'mcl_core:iron_ingot'},
{'', 'mcl_core:iron_ingot', ''}
}
})
minetest.register_alias("mcl_compass:compass", "mcl_compass:"..stereotype_frame)
-- Export stereotype item for other mods to use
mcl_compass.stereotype = "mcl_compass:"..tostring(stereotype_frame)