Moved Life implementations into 'life' directory.

[cellular-automata.git] / 005 / life.awk

diff --git a/005/life.awk b/005/life.awk
deleted file mode 100755 (executable)
index 0e6fb02..0000000
--- a/005/life.awk
+++ /dev/null
@@ -1,145 +0,0 @@
-#! /usr/bin/awk -f
-
-
-function CHAR_BORDER() {return "-"}
-function CHAR_ALIVE()  {return "o"}
-function CHAR_DEAD()   {return " "}
-
-
-function get_random_state() {
-    return int(2 * rand())
-}
-
-
-function get_char_of_state(state) {
-    if (state == 1) {
-        return CHAR_ALIVE()
-    } else if (state == 0) {
-        return CHAR_DEAD()
-    }
-}
-
-
-function do_print_border(x) {
-    for (i=1; i <= x; i++) {
-        printf CHAR_BORDER()
-    };
-    print
-}
-
-
-function do_print_generation(board, gen_id, y, x) {
-    do_print_border(x);
-
-    for (yi=1; yi <= y; yi++) {
-        for (xi=1; xi <= x; xi++) {
-            printf "%s", get_char_of_state(board[gen_id, yi, xi])
-        };
-
-        print
-    }
-
-    do_print_border(x);
-}
-
-
-function get_new_state(state, live_neighbors) {
-    if (state == 1 && live_neighbors < 2) {
-        return 0
-    } else if (state == 1 && live_neighbors < 4) {
-        return 1
-    } else if (state == 1 && live_neighbors > 3) {
-        return 0
-    } else if (state == 0 && live_neighbors == 3) {
-        return 1
-    } else {
-        return state
-    }
-}
-
-
-function set_generation(board, gen_id, y, x) {
-    num_directions = split("N, NE, E, SE, S, SW, W, NW", directions, ", ");
-
-    offsets["N" , "x"] =  0;
-    offsets["N" , "y"] = -1;
-
-    offsets["NE", "x"] =  1;
-    offsets["NE", "y"] = -1;
-
-    offsets["E" , "x"] =  1;
-    offsets["E" , "y"] =  0;
-
-    offsets["SE", "x"] =  1;
-    offsets["SE", "y"] =  1;
-
-    offsets["S" , "x"] =  0;
-    offsets["S" , "y"] =  1;
-
-    offsets["SW", "x"] = -1;
-    offsets["SW", "y"] =  1;
-
-    offsets["W" , "x"] = -1;
-    offsets["W" , "y"] =  0;
-
-    offsets["NW", "x"] = -1;
-    offsets["NW", "y"] = -1;
-
-    prev_gen_id = gen_id - 1;
-
-    for (yi=1; yi <= y; yi++) {
-        for (xi=1; xi <= x; xi++) {
-            if (gen_id == 1) {
-                board[gen_id, yi, xi] = get_random_state()
-            } else {
-                state = board[prev_gen_id, yi, xi];
-                live_neighbors = 0;
-
-                for (dir_i=1; dir_i <= num_directions; dir_i ++) {
-                    direction = directions[dir_i];
-
-                    xn = offsets[direction, "x"] + xi;
-                    yn = offsets[direction, "y"] + yi;
-
-                    if (xn > 0 && xn <= x && yn > 0 && yn <= y) {
-                        neighbor_state = board[prev_gen_id, yn, xn];
-                        live_neighbors += neighbor_state;
-                    }
-                };
-
-                board[gen_id, yi, xi] = get_new_state(state, live_neighbors);
-            }
-        }
-    }
-}
-
-
-function set_delete_generation(board, gen_id) {
-    for (cell in board) {
-        if (match(cell, "^" gen_id SUBSEP)) {
-            delete board[cell]
-        }
-    }
-}
-
-
-function life() {
-    "stty size" | getline stty_size_out;
-    split(stty_size_out, stty_size);
-
-    x = stty_size[2];
-    y = stty_size[1] - 3;  # Minus 1 row for each: border, border, cursor
-
-    gen_id = 0;
-    while (1) {
-        prev_gen_id = gen_id;
-        gen_id++;
-
-        set_generation(board, gen_id, y, x);
-        do_print_generation(board, gen_id, y, x);
-        set_delete_generation(board, prev_gen_id);
-    }
-}
-
-
-BEGIN {life()}