74 lines
1.9 KiB
Lua
74 lines
1.9 KiB
Lua
local vadd, vmultiply, vround = vector.add, vector.multiply, vector.round
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local weather = {
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type = "none",
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wind = {x = 0, y = 0, z = 0},
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registered = {},
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liquids = {}
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}
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local is_valid_pos = minetest.is_valid_pos
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if not is_valid_pos then
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is_valid_pos = function() return true end
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end
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--
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-- Change of weather
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--
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sscsm.register_on_com_receive("weather_lite:set", function(msg)
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for k, v in pairs(msg) do
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weather[k] = v
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end
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end)
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--
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-- Processing players
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--
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assert(minetest.localplayer)
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sscsm.every(0.09, function()
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local current_downfall = weather.registered[weather.type]
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if current_downfall == nil then return end
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local ppos = vround(minetest.localplayer:get_pos())
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ppos.y = ppos.y + 1.5
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-- Higher than clouds
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local cloud_height = weather.cloud_height
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cloud_height = cloud_height ~= 0 and cloud_height or 120
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if not is_valid_pos(ppos) or ppos.y > cloud_height or ppos.y < -8 then return end
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-- Inside liquid
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local head_inside = minetest.get_node_or_nil(ppos)
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if head_inside and weather.liquids[head_inside.name] then return end
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-- Too dark, probably not under the sky
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if minetest.get_node_light then
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local light = minetest.get_node_light(ppos, 0.5)
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if light and light < 12 then return end
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end
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local wind_pos = vmultiply(weather.wind, -1)
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local minp = vadd(vadd(ppos, {x = -8, y = current_downfall.height, z = -8}), wind_pos)
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local maxp = vadd(vadd(ppos, {x = 8, y = current_downfall.height, z = 8}), wind_pos)
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local vel = {x = weather.wind.x, y = -current_downfall.falling_speed, z = weather.wind.z}
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local vert = current_downfall.vertical or false
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minetest.add_particlespawner({
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amount = current_downfall.amount,
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time = 0.1,
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minpos = minp,
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maxpos = maxp,
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minvel = vel,
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maxvel = vel,
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minsize = current_downfall.size,
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maxsize = current_downfall.size,
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collisiondetection = true,
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collision_removal = true,
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vertical = vert,
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texture = current_downfall.texture,
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glow = 1
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})
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end)
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