wolf81

-- circular buffer factory for lua


local function rotate_indice(i, n)
    return ((i - 1) % n) + 1
end

local circular_buffer = {}

local function circular_buffer:filled()

wolf81

/**
 * Recursive shadowcasting algorithm.
 * This algorithm creates a field of view centered around (x, y).
 * Opaque tiles are treated as if they have beveled edges.
 * Transparent tiles are visible only if their center is visible, so the
 * algorithm is symmetric.
 * @param cx - x coordinate of center
 * @param cy - y coordinate of center
 * @param transparent - function that takes (x, y) as arguments and returns the transparency of that tile
 * @param reveal - callback function that reveals the tile at (x, y)

wolf81

#!/usr/bin/env bash

set -Eeuo pipefail

cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1

trap cleanup SIGINT SIGTERM ERR EXIT

usage() {
  cat <<EOF