aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Just another update

Browse source
This commit is contained in:
Ingy döt Net 2015-02-20 00:35:01 -05:00
parent a25938f123
commit 00a190b0a6
6591 changed files with 94363 additions and 23227 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Task/Maze-solving/D/maze-solving.d
View file

@ -1,16 +1,16 @@
import std.stdio, std.random, std.string, std.array, std.algorithm,
std.file;
std.file, std.conv;
enum int cx = 4, cy = 2; // Cell size x and y.
enum int cx2 = cx / 2, cy2 = cy / 2;
enum pathSymbol = '.';
struct V2 { int x, y; }
bool solveMaze(char[][] maze, in V2 s, in V2 end) pure nothrow {
bool solveMaze(char[][] maze, in V2 s, in V2 end) pure nothrow @safe @nogc {
if (s == end)
return true;
foreach (d; [V2(0, -cy), V2(+cx, 0), V2(0, +cy), V2(-cx, 0)])
foreach (immutable d; [V2(0, -cy), V2(+cx, 0), V2(0, +cy), V2(-cx, 0)])
if (maze[s.y + (d.y / 2)][s.x + (d.x / 2)] == ' ' &&
maze[s.y + d.y][s.x + d.x] == ' ') {
maze[s.y + d.y][s.x + d.x] = pathSymbol;
@ -23,15 +23,13 @@ bool solveMaze(char[][] maze, in V2 s, in V2 end) pure nothrow {
}
void main() {
auto maze = "maze.txt".readText.splitLines.map!(r => r.dup).array;
immutable int h = ((cast(int)maze.length) - 1) / cy;
auto maze = "maze.txt".File.byLine.map!(r => r.chomp.dup).array;
immutable h = (maze.length.signed - 1) / cy;
assert (h > 0);
immutable int w = ((cast(int)maze[0].length) - 1) / cx;
immutable w = (maze[0].length.signed - 1) / cx;
immutable start = V2(cx2 + cx * uniform(0, w),
cy2 + cy * uniform(0, h));
immutable end = V2(cx2 + cx * uniform(0, w),
cy2 + cy * uniform(0, h));
immutable start = V2(cx2 + cx * uniform(0, w), cy2 + cy * uniform(0, h));
immutable end = V2(cx2 + cx * uniform(0, w), cy2 + cy * uniform(0, h));
maze[start.y][start.x] = pathSymbol;
if (!solveMaze(maze, start, end))