From 5e537d689580d45fd6a41756572830d461adc696 Mon Sep 17 00:00:00 2001
From: Gavin McDonald <gavinmcdoh@gmail.com>
Date: Sun, 11 Nov 2018 11:27:25 -0500
Subject: [PATCH] forking from
 https://gitea.daggertrout.com/mcdoh/ExMineArchive

---
 .formatter.exs             |  4 +++
 .gitignore                 | 24 ++++++++++++++++
 README.md                  | 21 ++++++++++++++
 config/config.exs          | 30 +++++++++++++++++++
 lib/cartographer.ex        | 19 ++++++++++++
 lib/cartographer/board.ex  | 59 ++++++++++++++++++++++++++++++++++++++
 mix.exs                    | 25 ++++++++++++++++
 test/cartographer_test.exs |  8 ++++++
 test/test_helper.exs       |  1 +
 9 files changed, 191 insertions(+)
 create mode 100644 .formatter.exs
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 config/config.exs
 create mode 100644 lib/cartographer.ex
 create mode 100644 lib/cartographer/board.ex
 create mode 100644 mix.exs
 create mode 100644 test/cartographer_test.exs
 create mode 100644 test/test_helper.exs

diff --git a/.formatter.exs b/.formatter.exs
new file mode 100644
index 0000000..525446d
--- /dev/null
+++ b/.formatter.exs
@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..187cb41
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,24 @@
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+cartographer-*.tar
+
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f3bc28a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,21 @@
+# Cartographer
+
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `cartographer` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+  [
+    {:cartographer, "~> 0.1.0"}
+  ]
+end
+```
+
+Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
+and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
+be found at [https://hexdocs.pm/cartographer](https://hexdocs.pm/cartographer).
+
diff --git a/config/config.exs b/config/config.exs
new file mode 100644
index 0000000..0cc2944
--- /dev/null
+++ b/config/config.exs
@@ -0,0 +1,30 @@
+# This file is responsible for configuring your application
+# and its dependencies with the aid of the Mix.Config module.
+use Mix.Config
+
+# This configuration is loaded before any dependency and is restricted
+# to this project. If another project depends on this project, this
+# file won't be loaded nor affect the parent project. For this reason,
+# if you want to provide default values for your application for
+# 3rd-party users, it should be done in your "mix.exs" file.
+
+# You can configure your application as:
+#
+#     config :cartographer, key: :value
+#
+# and access this configuration in your application as:
+#
+#     Application.get_env(:cartographer, :key)
+#
+# You can also configure a 3rd-party app:
+#
+#     config :logger, level: :info
+#
+
+# It is also possible to import configuration files, relative to this
+# directory. For example, you can emulate configuration per environment
+# by uncommenting the line below and defining dev.exs, test.exs and such.
+# Configuration from the imported file will override the ones defined
+# here (which is why it is important to import them last).
+#
+#     import_config "#{Mix.env}.exs"
diff --git a/lib/cartographer.ex b/lib/cartographer.ex
new file mode 100644
index 0000000..0fdd926
--- /dev/null
+++ b/lib/cartographer.ex
@@ -0,0 +1,19 @@
+defmodule Cartographer do
+  alias Cartographer.Board
+
+  defdelegate new_board(height, width), to: Board
+
+  defdelegate height(board), to: Board
+
+  defdelegate width(board), to: Board
+
+  defdelegate get(board), to: Board
+
+  defdelegate get(board, x, y), to: Board
+
+  defdelegate get(board, x, y, range), to: Board
+
+  defdelegate set(board, x, y, data), to: Board
+
+  defdelegate neighbors(board, x, y), to: Board
+end
diff --git a/lib/cartographer/board.ex b/lib/cartographer/board.ex
new file mode 100644
index 0000000..3a374a9
--- /dev/null
+++ b/lib/cartographer/board.ex
@@ -0,0 +1,59 @@
+defmodule Cartographer.Board do
+  defstruct(
+    tiles: %{},
+    height: nil,
+    width: nil
+  )
+
+  def new_board(height, width) do
+    %__MODULE__{
+      height: height,
+      width: width,
+    }
+  end
+
+  def in_bounds(%__MODULE__{:height => height, :width => width}, x, y) do
+    x >= 0 and x < width and y >= 0 and y < height
+  end
+
+  def coordinate_range(center_x, center_y, range) do
+    for x <- (center_x - range)..(center_x + range), y <- (center_y - range)..(center_y + range), do: {x, y}
+  end
+
+  def height(board), do: board.height
+  def width(board), do: board.width
+
+  def get(board), do: board
+
+  def get(board, x, y) do
+    Map.get(board.tiles, {x, y})
+  end
+
+  def get(board, center_x, center_y, range) do
+    coordinate_range(center_x, center_y, range)
+    |> Enum.filter(fn({x, y}) -> in_bounds(board, x, y) end)
+    |> Enum.reduce(%{}, &(Map.put(&2, &1, Map.get(board.tiles, &1))))
+  end
+
+  def set(board, x, y, data) do
+    in_bounds(board, x, y)
+    |> _set(board, x, y, data)
+  end
+
+  defp _set(_in_bounds = true, board, x, y, data) do
+    tiles = board.tiles
+    |> Map.put({x, y}, data)
+
+    board
+    |> Map.put(:tiles, tiles)
+  end
+
+  defp _set(_not_in_bounds, board, _x, _y, _data), do: board
+
+  def neighbors(board, center_x, center_y) do
+    coordinate_range(center_x, center_y, 1)
+    |> List.delete({center_x, center_y})
+    |> Enum.filter(fn({x, y}) -> in_bounds(board, x, y) end)
+    |> Enum.reduce(%{}, &(Map.put(&2, &1, Map.get(board.tiles, &1))))
+  end
+end
diff --git a/mix.exs b/mix.exs
new file mode 100644
index 0000000..d545d37
--- /dev/null
+++ b/mix.exs
@@ -0,0 +1,25 @@
+defmodule Cartographer.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :cartographer,
+      version: "0.1.0",
+      elixir: "~> 1.6",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger]
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    []
+  end
+end
diff --git a/test/cartographer_test.exs b/test/cartographer_test.exs
new file mode 100644
index 0000000..cfdefb5
--- /dev/null
+++ b/test/cartographer_test.exs
@@ -0,0 +1,8 @@
+defmodule CartographerTest do
+  use ExUnit.Case
+  doctest Cartographer
+
+  test "greets the world" do
+    assert Cartographer.hello() == :world
+  end
+end
diff --git a/test/test_helper.exs b/test/test_helper.exs
new file mode 100644
index 0000000..869559e
--- /dev/null
+++ b/test/test_helper.exs
@@ -0,0 +1 @@
+ExUnit.start()