97 lines
1.5 KiB
Crystal
97 lines
1.5 KiB
Crystal
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require "json"
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class Naka::Map
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@save_directory : String
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getter generator
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def initialize(@save_directory, &block : Proc(Tile, Int32, Int32, Tile?))
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Dir.mkdir_p @save_directory
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@generator = block
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end
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class Object
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getter type : String
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def initialize(@type)
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end
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def to_json(builder)
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builder.object do
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builder.field "type", @type
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end
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end
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end
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class Tile < Array(Object)
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def initialize(element)
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initialize
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self << element
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end
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end
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CHUNK_SIZE = 32
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class Chunk
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property tiles : Array(Array(Tile))
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getter x : Int32
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getter y : Int32
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def initialize(@x, @y, map)
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p "Creating Map::Chunk"
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@tiles = Array.new(CHUNK_SIZE) do |x|
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x += @x * CHUNK_SIZE
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Array.new(CHUNK_SIZE) do |y|
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y += @y * CHUNK_SIZE
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Tile.new(Object.new "stone").tap do |tile|
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map.generator.call tile, x, y
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end
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end
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end
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end
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def to_json
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{
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:x => @x,
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:y => @y,
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:tiles => @tiles
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}.to_json
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end
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def get(x, y)
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@tiles[x][y]
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end
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end
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@chunks = Hash(Int32, Hash(Int32, Chunk)).new
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def get_chunk(x, y)
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chunks_list = @chunks[x]?
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if chunks_list.nil?
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chunks_list = Hash(Int32, Chunk).new
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@chunks[x] = chunks_list
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end
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chunk = chunks_list[y]?
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if chunk.nil?
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chunk = Chunk.new x, y, self
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chunks_list[y] = chunk
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save chunk
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end
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chunk
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end
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def save(chunk : Chunk)
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File.write "#{@save_directory}/chunk-#{chunk.x}-#{chunk.y}.json", chunk.to_json
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end
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def get(x, y)
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get_chunk(x / CHUNK_SIZE, y / CHUNK_SIZE).get(x % CHUNK_SIZE, y % CHUNK_SIZE)
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end
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end
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