mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-08-28 12:28:12 +02:00
259 lines
5.9 KiB
Lua
259 lines
5.9 KiB
Lua
mcl_experience = {
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on_add_xp = {},
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}
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local modpath = minetest.get_modpath(minetest.get_current_modname())
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dofile(modpath .. "/command.lua")
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dofile(modpath .. "/orb.lua")
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dofile(modpath .. "/bottle.lua")
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-- local storage
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local hud_bars = {}
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local hud_levels = {}
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local caches = {}
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-- helpers
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local function xp_to_level(xp)
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local xp = xp or 0
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local a, b, c, D
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if xp > 1507 then
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a, b, c = 4.5, -162.5, 2220 - xp
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elseif xp > 352 then
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a, b, c = 2.5, -40.5, 360 - xp
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else
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a, b, c = 1, 6, -xp
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end
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D = b * b - 4 * a * c
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if D == 0 then
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return math.floor(-b / 2 / a)
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elseif D > 0 then
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local v1, v2 = -b / 2 / a, math.sqrt(D) / 2 / a
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return math.floor(math.max(v1 - v2, v1 + v2))
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end
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return 0
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end
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local function level_to_xp(level)
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if level >= 1 and level <= 16 then
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return math.floor(math.pow(level, 2) + 6 * level)
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elseif level >= 17 and level <= 31 then
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return math.floor(2.5 * math.pow(level, 2) - 40.5 * level + 360)
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elseif level >= 32 then
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return math.floor(4.5 * math.pow(level, 2) - 162.5 * level + 2220)
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end
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return 0
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end
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local function calculate_bounds(level)
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return level_to_xp(level), level_to_xp(level + 1)
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end
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local function xp_to_bar(xp, level)
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local xp_min, xp_max = calculate_bounds(level)
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return (xp - xp_min) / (xp_max - xp_min)
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end
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local function bar_to_xp(bar, level)
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local xp_min, xp_max = calculate_bounds(level)
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return xp_min + bar * (xp_max - xp_min)
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end
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local function get_time()
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return minetest.get_us_time() / 1000000
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end
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-- api
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function mcl_experience.get_level(player)
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return caches[player].level
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end
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function mcl_experience.set_level(player, level)
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local cache = caches[player]
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if level ~= cache.level then
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mcl_experience.set_xp(player, math.floor(bar_to_xp(xp_to_bar(mcl_experience.get_xp(player), cache.level), level)))
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end
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end
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function mcl_experience.get_xp(player)
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return player:get_meta():get_int("xp")
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end
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function mcl_experience.set_xp(player, xp)
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player:get_meta():set_int("xp", xp)
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mcl_experience.update(player)
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end
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function mcl_experience.add_xp(player, xp)
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for _, cb in ipairs(mcl_experience.on_add_xp) do
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xp = cb.func(player, xp) or xp
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if xp == 0 then
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break
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end
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end
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local cache = caches[player]
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local old_level = cache.level
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mcl_experience.set_xp(player, mcl_experience.get_xp(player) + xp)
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local current_time = get_time()
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if current_time - cache.last_time > 0.01 then
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local name = player:get_player_name()
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if old_level == cache.level then
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minetest.sound_play("mcl_experience", {
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to_player = name,
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gain = 0.1,
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pitch = math.random(75, 99) / 100,
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})
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cache.last_time = current_time
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else
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minetest.sound_play("mcl_experience_level_up", {
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to_player = name,
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gain = 0.2,
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})
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cache.last_time = current_time + 0.2
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end
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end
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end
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function mcl_experience.throw_xp(pos, total_xp)
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local i, j = 0, 0
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local obs = {}
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while i < total_xp and j < 100 do
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local xp = math.min(math.random(1, math.min(32767, total_xp - math.floor(i / 2))), total_xp - i)
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local obj = minetest.add_entity(pos, "mcl_experience:orb", tostring(xp))
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if not obj then
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return false
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end
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obj:set_velocity(vector.new(
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math.random(-2, 2) * math.random(),
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math.random(2, 5),
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math.random(-2, 2) * math.random()
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))
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i = i + xp
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j = j + 1
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table.insert(obs, obj)
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end
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return obs
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end
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function mcl_experience.remove_hud(player)
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if hud_bars[player] then
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player:hud_remove(hud_bars[player])
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hud_bars[player] = nil
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end
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if hud_levels[player] then
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player:hud_remove(hud_levels[player])
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hud_levels[player] = nil
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end
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end
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function mcl_experience.setup_hud(player)
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if hud_bars[player] and hud_levels[player] then return end
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mcl_experience.remove_hud(player)
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caches[player] = {
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last_time = get_time(),
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}
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if not minetest.is_creative_enabled(player:get_player_name()) then
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hud_bars[player] = player:hud_add({
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hud_elem_type = "image",
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position = { x = 0.5, y = 1 },
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offset = { x = (-9 * 28) - 3, y = -(48 + 24 + 16 - 5) },
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scale = { x = 0.35, y = 0.375 },
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alignment = { x = 1, y = 1 },
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z_index = 11,
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})
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hud_levels[player] = player:hud_add({
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hud_elem_type = "text",
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position = { x = 0.5, y = 1 },
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number = 0x80FF20,
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offset = { x = 0, y = -(48 + 24 + 24) },
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z_index = 12,
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})
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end
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end
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function mcl_experience.update(player)
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local xp = mcl_experience.get_xp(player)
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local cache = caches[player]
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cache.level = xp_to_level(xp)
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if not minetest.is_creative_enabled(player:get_player_name()) then
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if not hud_bars[player] then
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mcl_experience.setup_hud(player)
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end
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player:hud_change(hud_bars[player], "text", "(mcl_experience_bar_background.png^[lowpart:"
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.. math.floor(math.floor(xp_to_bar(xp, cache.level) * 18) / 18 * 100)
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.. ":mcl_experience_bar.png)^[resize:40x1456^[transformR270"
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)
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if cache.level == 0 then
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player:hud_change(hud_levels[player], "text", "")
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else
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player:hud_change(hud_levels[player], "text", tostring(cache.level))
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end
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end
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end
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function mcl_experience.register_on_add_xp(func, priority)
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table.insert(mcl_experience.on_add_xp, { func = func, priority = priority or 0 })
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end
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-- callbacks
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minetest.register_on_joinplayer(function(player)
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mcl_experience.setup_hud(player)
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mcl_experience.update(player)
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end)
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minetest.register_on_leaveplayer(function(player)
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hud_bars[player] = nil
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hud_levels[player] = nil
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caches[player] = nil
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end)
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minetest.register_on_dieplayer(function(player)
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if not minetest.settings:get_bool("mcl_keepInventory", false) then
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mcl_experience.throw_xp(player:get_pos(), mcl_experience.get_xp(player))
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mcl_experience.set_xp(player, 0)
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end
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end)
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minetest.register_on_mods_loaded(function()
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table.sort(mcl_experience.on_add_xp, function(a, b) return a.priority < b.priority end)
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end)
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mcl_gamemode.register_on_gamemode_change(function(player, old_gamemode, new_gamemode)
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if new_gamemode == "survival" then
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mcl_experience.setup_hud(player)
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mcl_experience.update(player)
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elseif new_gamemode == "creative" then
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mcl_experience.remove_hud(player)
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end
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end)
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