66 lines
1.8 KiB
Lua
66 lines
1.8 KiB
Lua
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local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local chance_per_chunk = 3
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local random_offset = 1264
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local struct_threshold = chance_per_chunk - 1
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local noise_params = {
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offset = 0,
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scale = 1,
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spread = {
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x = mcl_mapgen.CS,
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y = mcl_mapgen.CS,
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z = mcl_mapgen.CS,
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},
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scale = 0.3,
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seed = 32931,
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octaves = 2,
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persistence = 0.7,
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}
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local node_list = {"mcl_core:snowblock", "mcl_core:dirt_with_grass_snow"}
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local schematic = modpath.."/schematics/mcl_structures_ice_spike_small.mts"
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minetest_find_nodes_in_area = minetest.find_nodes_in_area
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local function place(pos, rotation, pr)
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mcl_structures.place_schematic({pos = pos, schematic = schematic, rotation = rotation, pr = pr})
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end
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local function is_place_ok(p)
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local floor = {x=p.x+6, y=p.y-1, z=p.z+6}
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local surface = #minetest_find_nodes_in_area({x=p.x+1,y=p.y-1,z=p.z+1}, floor, node_list, false)
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if surface < 25 then return end
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-- Check for collision with spruce
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local spruce_collisions = #minetest_find_nodes_in_area({x=p.x+1,y=p.y+1,z=p.z+1}, {x=p.x+6, y=p.y+6, z=p.z+6}, {"group:tree"}, false)
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if spruce_collisions > 0 then return end
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return true
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end
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local def = mcl_mapgen.v6 and {
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decoration = {
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deco_type = "simple",
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place_on = node_list,
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noise_params = noise_params,
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y_min = mcl_mapgen.overworld.min,
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y_max = mcl_mapgen.overworld.max,
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height = 1,
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},
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on_finished_chunk = mcl_mapgen.v6 and function(minp, maxp, seed, vm_context, pos_list)
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local pr = PseudoRandom(seed + random_offset)
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local random_number = pr:next(1, chance_per_chunk)
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if random_number < struct_threshold then return end
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for i = 1, #pos_list do
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local pos = pos_list[i]
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if is_place_ok(pos) then
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place(pos, nil, pr)
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end
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end
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end,
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} or {}
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def.name = "ice_spike_small"
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def.place_function = place
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mcl_structures.register_structure(def)
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