44 lines
1.6 KiB
Lua
44 lines
1.6 KiB
Lua
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-- Convert a pre-flat-schema room save into the current { objects = { ... } }
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-- format. Usage:
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-- lua tools/migrate_legacy_room.lua legacy.sav migrated.sav
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local inputPath, outputPath = arg[1], arg[2]
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assert(inputPath and outputPath, "usage: lua tools/migrate_legacy_room.lua legacy.sav migrated.sav")
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local input = assert(io.open(inputPath, "r"))
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local chunk, err = load("return " .. input:read("*a"))
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input:close()
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assert(chunk, err)
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local legacy = chunk()
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local objects = {}
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local function append(class, object, includeColor)
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local converted = {
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class = class,
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x = object.x,
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y = object.y,
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}
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if includeColor ~= false then converted.color = object.color end
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table.insert(objects, converted)
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end
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for _, color in ipairs({ "red", "green", "blue" }) do
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for _, object in ipairs(legacy.players[color] or {}) do append("player", object) end
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-- Doors are shared between color layers in the current schema, so they have
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-- no color field when serialized.
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for _, object in ipairs(legacy.doors[color] or {}) do append("door", object, false) end
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for _, object in ipairs(legacy.static_walls[color] or {}) do append("static_wall", object) end
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-- The legacy wall sprite was renamed to box when assets became data-driven.
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for _, object in ipairs(legacy.walls[color] or {}) do append("box", object) end
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for _, object in ipairs(legacy.switches[color] or {}) do append("switch", object) end
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end
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for _, sage in pairs(legacy.sages or {}) do
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table.insert(objects, { class = "npc", x = sage.x, y = sage.y })
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end
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require "libs/TSerial"
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local output = assert(io.open(outputPath, "w"))
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output:write(TSerial.pack({ objects = objects }, nil, true))
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output:close()
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