modularize get_building function from mapgen helper

This commit is contained in:
BuckarooBanzay 2024-06-14 07:24:08 +02:00
parent 27bc4f5fe3
commit 5b3cbd2513

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@ -104,6 +104,72 @@ function building_lib.create_mapgen(opts)
return mapblock_pos.y == opts.water_level and height <= mapblock_pos.y
end
local function get_building(mapblock_pos)
local height = get_height(mapblock_pos)
local temperature, humidity = get_temperature_humidity(mapblock_pos)
local biome = select_biome(opts.biomes, temperature, humidity)
if is_water(mapblock_pos) then
-- nothing above, place water building
return biome.buildings.water, 0
elseif mapblock_pos.y < height or mapblock_pos.y < opts.water_level then
-- underground
return biome.buildings.underground, 0
elseif mapblock_pos.y == height then
-- surface
-- check if neighbors are lower
local hm = get_height_map(mapblock_pos, height)
local building_name = biome.buildings.surface
local rotation = 0
-- normal slopes
if hm[-1][0] and not hm[1][0] and not hm[0][-1] and not hm[0][1] then
building_name = biome.buildings.slope
rotation = 90
elseif not hm[-1][0] and hm[1][0] and not hm[0][-1] and not hm[0][1] then
building_name = biome.buildings.slope
rotation = 270
elseif not hm[-1][0] and not hm[1][0] and hm[0][-1] and not hm[0][1] then
building_name = biome.buildings.slope
rotation = 0
elseif not hm[-1][0] and not hm[1][0] and not hm[0][-1] and hm[0][1] then
building_name = biome.buildings.slope
rotation = 180
-- outer slopes
elseif hm[0][-1] and hm[-1][0] and not hm[0][1] and not hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 90
elseif not hm[0][-1] and hm[-1][0] and hm[0][1] and not hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 180
elseif not hm[0][-1] and not hm[-1][0] and hm[0][1] and hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 270
elseif hm[0][-1] and not hm[-1][0] and not hm[0][1] and hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 0
-- inner slopes
elseif hm[-1][-1] and not hm[-1][1] and not hm[1][1] and not hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 90
elseif not hm[-1][-1] and hm[-1][1] and not hm[1][1] and not hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 180
elseif not hm[-1][-1] and not hm[-1][1] and hm[1][1] and not hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 270
elseif not hm[-1][-1] and not hm[-1][1] and not hm[1][1] and hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 0
end
return building_name, rotation
end
end
local function on_generated(minp, maxp)
local min_mapblock = mapblock_lib.get_mapblock(minp)
local max_mapblock = mapblock_lib.get_mapblock(maxp)
@ -123,67 +189,8 @@ function building_lib.create_mapgen(opts)
end
local mapblock_pos = { x=x, y=y, z=z }
local height = get_height(mapblock_pos)
local temperature, humidity = get_temperature_humidity(mapblock_pos)
local biome = select_biome(opts.biomes, temperature, humidity)
if is_water(mapblock_pos) then
-- nothing above, place water building
building_lib.build_mapgen(mapblock_pos, biome.buildings.water, 0)
elseif mapblock_pos.y < height or mapblock_pos.y < opts.water_level then
-- underground
building_lib.build_mapgen(mapblock_pos, biome.buildings.underground, 0)
elseif mapblock_pos.y == height then
-- surface
-- check if neighbors are lower
local hm = get_height_map(mapblock_pos, height)
local building_name = biome.buildings.surface
local rotation = 0
-- normal slopes
if hm[-1][0] and not hm[1][0] and not hm[0][-1] and not hm[0][1] then
building_name = biome.buildings.slope
rotation = 90
elseif not hm[-1][0] and hm[1][0] and not hm[0][-1] and not hm[0][1] then
building_name = biome.buildings.slope
rotation = 270
elseif not hm[-1][0] and not hm[1][0] and hm[0][-1] and not hm[0][1] then
building_name = biome.buildings.slope
rotation = 0
elseif not hm[-1][0] and not hm[1][0] and not hm[0][-1] and hm[0][1] then
building_name = biome.buildings.slope
rotation = 180
-- outer slopes
elseif hm[0][-1] and hm[-1][0] and not hm[0][1] and not hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 90
elseif not hm[0][-1] and hm[-1][0] and hm[0][1] and not hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 180
elseif not hm[0][-1] and not hm[-1][0] and hm[0][1] and hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 270
elseif hm[0][-1] and not hm[-1][0] and not hm[0][1] and hm[1][0] then
building_name = biome.buildings.slope_outer
rotation = 0
-- inner slopes
elseif hm[-1][-1] and not hm[-1][1] and not hm[1][1] and not hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 90
elseif not hm[-1][-1] and hm[-1][1] and not hm[1][1] and not hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 180
elseif not hm[-1][-1] and not hm[-1][1] and hm[1][1] and not hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 270
elseif not hm[-1][-1] and not hm[-1][1] and not hm[1][1] and hm[1][-1] then
building_name = biome.buildings.slope_inner
rotation = 0
end
local building_name, rotation = get_building(mapblock_pos)
if building_name then
building_lib.build_mapgen(mapblock_pos, building_name, rotation)
end
end --z
@ -191,7 +198,9 @@ function building_lib.create_mapgen(opts)
end --x
end
-- exposed mapgen helper functions
return {
-- main function for "minetest.register_on_generated"
on_generated = on_generated,
get_height = get_height,
get_temperature_humidity = get_temperature_humidity,
@ -199,6 +208,7 @@ function building_lib.create_mapgen(opts)
local temperature, humidity = get_temperature_humidity(mapblock_pos)
return select_biome(opts.biomes, temperature, humidity)
end,
is_water = is_water
is_water = is_water,
get_building = get_building
}
end