346 lines
7.9 KiB
Lua
346 lines
7.9 KiB
Lua
-- Common startup file for all dfhack plugins with lua support
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-- The global dfhack table is already created by C++ init code.
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-- Setup the global environment.
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-- BASE_G is the original lua global environment,
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-- preserved as a common denominator for all modules.
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-- This file uses it instead of the new default one.
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local dfhack = dfhack
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local base_env = dfhack.BASE_G
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local _ENV = base_env
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-- Console color constants
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COLOR_RESET = -1
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COLOR_BLACK = 0
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COLOR_BLUE = 1
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COLOR_GREEN = 2
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COLOR_CYAN = 3
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COLOR_RED = 4
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COLOR_MAGENTA = 5
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COLOR_BROWN = 6
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COLOR_GREY = 7
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COLOR_DARKGREY = 8
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COLOR_LIGHTBLUE = 9
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COLOR_LIGHTGREEN = 10
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COLOR_LIGHTCYAN = 11
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COLOR_LIGHTRED = 12
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COLOR_LIGHTMAGENTA = 13
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COLOR_YELLOW = 14
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COLOR_WHITE = 15
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-- Events
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if dfhack.is_core_context then
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SC_WORLD_LOADED = 0
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SC_WORLD_UNLOADED = 1
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SC_MAP_LOADED = 2
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SC_MAP_UNLOADED = 3
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SC_VIEWSCREEN_CHANGED = 4
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SC_CORE_INITIALIZED = 5
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SC_PAUSED = 7
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SC_UNPAUSED = 8
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end
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-- Error handling
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safecall = dfhack.safecall
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curry = dfhack.curry
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function dfhack.pcall(f, ...)
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return xpcall(f, dfhack.onerror, ...)
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end
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function qerror(msg, level)
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dfhack.error(msg, (level or 1) + 1, false)
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end
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function dfhack.with_finalize(...)
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return dfhack.call_with_finalizer(0,true,...)
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end
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function dfhack.with_onerror(...)
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return dfhack.call_with_finalizer(0,false,...)
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end
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local function call_delete(obj)
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if obj then obj:delete() end
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end
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function dfhack.with_temp_object(obj,fn,...)
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return dfhack.call_with_finalizer(1,true,call_delete,obj,fn,obj,...)
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end
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dfhack.exception.__index = dfhack.exception
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-- Module loading
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function mkmodule(module,env)
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local pkg = package.loaded[module]
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if pkg == nil then
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pkg = {}
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else
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if type(pkg) ~= 'table' then
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error("Not a table in package.loaded["..module.."]")
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end
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end
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local plugname = string.match(module,'^plugins%.([%w%-]+)$')
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if plugname then
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dfhack.open_plugin(pkg,plugname)
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end
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setmetatable(pkg, { __index = (env or base_env) })
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return pkg
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end
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function reload(module)
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if type(package.loaded[module]) ~= 'table' then
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error("Module not loaded: "..module)
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end
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local path,err = package.searchpath(module,package.path)
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if not path then
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error(err)
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end
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dofile(path)
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end
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-- Trivial classes
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function rawset_default(target,source)
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for k,v in pairs(source) do
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if rawget(target,k) == nil then
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rawset(target,k,v)
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end
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end
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end
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function defclass(class,parent)
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class = class or {}
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rawset_default(class, { __index = class })
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if parent then
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setmetatable(class, parent)
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else
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rawset_default(class, {
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init_fields = rawset_default,
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callback = function(self, name, ...)
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return dfhack.curry(self[name], self, ...)
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end
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})
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end
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return class
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end
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function mkinstance(class,table)
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table = table or {}
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setmetatable(table, class)
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return table
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end
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-- Misc functions
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function printall(table)
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local ok,f,t,k = pcall(pairs,table)
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if ok then
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for k,v in f,t,k do
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print(string.format("%-23s\t = %s",tostring(k),tostring(v)))
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end
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end
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end
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function copyall(table)
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local rv = {}
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for k,v in pairs(table) do rv[k] = v end
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return rv
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end
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function pos2xyz(pos)
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if pos then
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local x = pos.x
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if x and x ~= -30000 then
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return x, pos.y, pos.z
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end
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end
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end
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function xyz2pos(x,y,z)
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if x then
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return {x=x,y=y,z=z}
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else
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return {x=-30000,y=-30000,z=-30000}
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end
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end
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function pos2xy(pos)
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if pos then
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local x = pos.x
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if x and x ~= -30000 then
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return x, pos.y
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end
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end
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end
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function xy2pos(x,y)
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if x then
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return {x=x,y=y}
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else
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return {x=-30000,y=-30000}
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end
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end
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function safe_index(obj,idx,...)
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if obj == nil or idx == nil then
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return nil
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end
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if type(idx) == 'number' and (idx < 0 or idx >= #obj) then
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return nil
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end
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obj = obj[idx]
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if select('#',...) > 0 then
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return safe_index(obj,...)
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else
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return obj
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end
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end
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-- String conversions
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function dfhack.persistent:__tostring()
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return "<persistent "..self.entry_id..":"..self.key.."=\""
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..self.value.."\":"..table.concat(self.ints,",")..">"
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end
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function dfhack.matinfo:__tostring()
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return "<material "..self.type..":"..self.index.." "..self:getToken()..">"
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end
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function dfhack.maps.getSize()
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local map = df.global.world.map
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return map.x_count_block, map.y_count_block, map.z_count_block
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end
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function dfhack.maps.getTileSize()
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local map = df.global.world.map
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return map.x_count, map.y_count, map.z_count
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end
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function dfhack.buildings.getSize(bld)
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local x, y = bld.x1, bld.y1
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return bld.x2+1-x, bld.y2+1-y, bld.centerx-x, bld.centery-y
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end
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-- Interactive
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local print_banner = true
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function dfhack.interpreter(prompt,hfile,env)
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if not dfhack.is_interactive() then
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return nil, 'not interactive'
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end
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print("Type quit to exit interactive lua interpreter.")
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if print_banner then
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print("Shortcuts:\n"..
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" '= foo' => '_1,_2,... = foo'\n"..
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" '! foo' => 'print(foo)'\n"..
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"Both save the first result as '_'.")
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print_banner = false
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end
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local prompt_str = "["..(prompt or 'lua').."]# "
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local prompt_cont = string.rep(' ',#prompt_str-4)..">>> "
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local prompt_env = {}
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local cmdlinelist = {}
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local t_prompt = nil
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local vcnt = 1
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local pfix_handlers = {
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['!'] = function(data)
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print(table.unpack(data,2,data.n))
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end,
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['~'] = function(data)
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print(table.unpack(data,2,data.n))
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printall(data[2])
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end,
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['='] = function(data)
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for i=2,data.n do
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local varname = '_'..vcnt
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prompt_env[varname] = data[i]
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dfhack.print(varname..' = ')
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safecall(print, data[i])
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vcnt = vcnt + 1
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end
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end
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}
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setmetatable(prompt_env, { __index = env or _G })
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while true do
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local cmdline = dfhack.lineedit(t_prompt or prompt_str, hfile)
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if cmdline == nil or cmdline == 'quit' then
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break
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elseif cmdline ~= '' then
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local pfix = string.sub(cmdline,1,1)
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if not t_prompt and pfix_handlers[pfix] then
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cmdline = 'return '..string.sub(cmdline,2)
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else
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pfix = nil
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end
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table.insert(cmdlinelist,cmdline)
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cmdline = table.concat(cmdlinelist,'\n')
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local code,err = load(cmdline, '=(interactive)', 't', prompt_env)
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if code == nil then
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if not pfix and err:sub(-5)=="<eof>" then
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t_prompt=prompt_cont
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else
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dfhack.printerr(err)
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cmdlinelist={}
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t_prompt=nil
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end
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else
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cmdlinelist={}
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t_prompt=nil
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local data = table.pack(safecall(code))
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if data[1] and data.n > 1 then
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prompt_env._ = data[2]
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safecall(pfix_handlers[pfix], data)
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end
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end
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end
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end
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return true
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end
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-- Command scripts
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dfhack.internal.scripts = dfhack.internal.scripts or {}
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local scripts = dfhack.internal.scripts
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local hack_path = dfhack.getHackPath()
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function dfhack.run_script(name,...)
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local key = string.lower(name)
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local file = hack_path..'scripts/'..name..'.lua'
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local env = scripts[key]
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if env == nil then
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env = {}
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setmetatable(env, { __index = base_env })
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end
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local f,perr = loadfile(file, 't', env)
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if f == nil then
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error(perr)
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end
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scripts[key] = env
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return f(...)
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end
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-- Feed the table back to the require() mechanism.
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return dfhack
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