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-- spawns flows at locations

--author expwnent

local usage = [====[

modtools/spawn-flow

===================

Creates flows at the specified location.

Arguments::

-material mat

specify the material of the flow, if applicable

examples:

INORGANIC:IRON

CREATURE_MAT:DWARF:BRAIN

PLANT_MAT:MUSHROOM_HELMET_PLUMP:DRINK

-location [ x y z]

the location to spawn the flow

-flowType type

specify the flow type

examples:

Miasma

Steam

Mist

MaterialDust

MagmaMist

Smoke

Dragonfire

Fire

Web

MaterialGas

MaterialVapor

OceanWave

SeaFoam

-flowSize size

specify how big the flow is

]====]

local utils = require 'utils'

local validArgs = utils.invert({

'help',

'material',

'flowType',

'location',

'flowSize',

})

local args = utils.processArgs({...}, validArgs)

if args.help then

print(usage)

return

end

local mat_index = -1;

local mat_type = -1;

if args.material then

local mat = dfhack.matinfo.find(args.material)

if not mat then

error ('Invalid material: ' .. mat)

end

mat_index = mat.index

mat_type = mat['type']

end

if args.flowSize and not tonumber(args.flowSize) then

error ('Invalid flow size: ' .. args.flowSize)

end

local flowSize = tonumber(args.flowSize or 'z') or 100

if not args.flowType or not df.flow_type[args.flowType] then

error ('Invalid flow type: ' .. (args.flowType or 'none specified'))

end

local flowType = df.flow_type[args.flowType]

if not args.location then

error 'Specify a location.'

end

local pos = df.coord:new();

pos.x = tonumber(args.location[1] or 'a')

pos.y = tonumber(args.location[2] or 'a')

pos.z = tonumber(args.location[3] or 'a')

if not pos.x or not pos.y or not pos.z then

error ('Invalid pos.')

end

dfhack.maps.spawnFlow(pos, flowType, mat_type, mat_index, flowSize)