93 lines
1.9 KiB
JavaScript
93 lines
1.9 KiB
JavaScript
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// Look and Write Sequence
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function mazeRunner(maze, directions) {
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const [h, w] = [maze.length, maze[0].length];
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const findStartingPos = () => {
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for (let y = 0; y < h; ++y) {
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for (let x = 0; x < w; ++x) {
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if (maze[y][x] === 2) return [x, y];
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}
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}
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};
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const X = 0;
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const Y = 1;
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const pos = findStartingPos();
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const dir2coord = {
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N: [0, -1],
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S: [0, 1],
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E: [1, 0],
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W: [-1, 0],
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};
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for (dir of directions) {
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const coord = dir2coord[dir];
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pos[X] += coord[X];
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pos[Y] += coord[Y];
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if (pos[X] < 0 || pos[X] >= w) return 'Dead';
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if (pos[Y] < 0 || pos[Y] >= h) return 'Dead';
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if (maze[pos[Y]][pos[X]] === 1) return 'Dead';
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if (maze[pos[Y]][pos[X]] === 3) return 'Finish';
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}
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return 'Lost';
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}
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var maze = [[1,1,1,1,1,1,1],
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[1,0,0,0,0,0,3],
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[1,0,1,0,1,0,1],
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[0,0,1,0,0,0,1],
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[1,0,1,0,1,0,1],
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[1,0,0,0,0,0,1],
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[1,2,1,0,1,0,1]];
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mazeRunner(maze,["N","N","N","N","N","E","E","E","E","E"]); // "Finish"
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mazeRunner(maze,["N","N","N","N","N","E","E","S","S","E","E","N","N","E"]); // "Finish"
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mazeRunner(maze,["N","N","N","N","N","E","E","E","E","E","W","W"]); // "Finish"
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mazeRunner(maze,["N","N","N","W","W"]); // "Dead"
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mazeRunner(maze,["N","N","N","N","N","E","E","S","S","S","S","S","S"]); // "Dead"
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mazeRunner(maze,["N","E","E","E","E"]); // "Lost"
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mazeRunner([
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[
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1, 1, 1, 1, 1,
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1, 1, 1, 0, 1
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],
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[
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1, 3, 1, 0, 1,
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0, 0, 0, 0, 1
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],
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[
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1, 0, 1, 0, 0,
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0, 1, 1, 0, 1
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],
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[
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1, 0, 1, 1, 1,
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1, 1, 0, 0, 1
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],
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[
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1, 0, 1, 0, 0,
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0, 0, 0, 0, 1
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],
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[
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1, 0, 1, 0, 1,
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0, 1, 0, 0, 1
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],
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[
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1, 0, 1, 0, 1,
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0, 0, 0, 0, 0
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],
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[
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1, 0, 1, 0, 1,
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0, 1, 1, 0, 1
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],
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[
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1, 0, 0, 0, 1,
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0, 0, 0, 0, 1
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],
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[
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1, 1, 1, 0, 1,
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1, 1, 1, 2, 1
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]
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], [ 'N', 'W', 'W', 'W', 'W' ]);
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