64 lines
1.6 KiB
Lua
64 lines
1.6 KiB
Lua
local MOON_PHASES = 8
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local MOON_PHASES_HALF = MOON_PHASES / 2
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local SHEET_W = 4
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local SHEET_H = 2
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-- Randomize initial moon phase, based on map seed
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local phase_offset
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local mg_seed = minetest.get_mapgen_setting("seed")
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local rand = PseudoRandom(mg_seed)
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local phase_offset = rand:next(0, MOON_PHASES - 1)
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rand = nil
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minetest.log("info", "[mcl_moon] Moon phase offset of this world: "..phase_offset)
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mcl_moon = {}
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mcl_moon.MOON_PHASES = MOON_PHASES
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mcl_moon.get_moon_phase = function()
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local after_midday = 0
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-- Moon phase changes after midday
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local tod = minetest.get_timeofday()
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if tod > 0.5 then
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after_midday = 1
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end
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return (minetest.get_day_count() + phase_offset + after_midday) % MOON_PHASES
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end
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local get_moon_texture = function()
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local phase = mcl_moon.get_moon_phase()
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local x = phase % MOON_PHASES_HALF
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local y
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if phase >= MOON_PHASES_HALF then
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y = 1
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else
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y = 0
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end
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return "mcl_moon_moon_phases.png^[sheet:"..SHEET_W.."x"..SHEET_H..":"..x..","..y
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end
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local timer = 0
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local last_reported_phase = nil
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minetest.register_globalstep(function(dtime)
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timer = timer + dtime
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if timer < 8 then
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return
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end
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timer = 0
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local phase = mcl_moon.get_moon_phase()
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-- No-op when moon phase didn't change yet
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if last_reported_phase == phase then
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return
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end
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minetest.log("info", "[mcl_moon] New moon phase: "..phase)
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last_reported_phase = phase
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local moon_arg = {texture = get_moon_texture()}
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local players = minetest.get_connected_players()
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for p=1, #players do
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players[p]:set_moon(moon_arg)
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end
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end)
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minetest.register_on_joinplayer(function(player)
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player:set_moon({texture = get_moon_texture(), scale=3.75})
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end)
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