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Seamless texture #29

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Seamless texture #29

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22 changes: 7 additions & 15 deletions sketch.js
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Original file line number Diff line number Diff line change
Expand Up @@ -136,45 +136,37 @@ function draw() {
} else {
let options = new Array(tiles.length).fill(0).map((x, i) => i);
// Look up
if (j > 0) {
let up = grid[i + (j - 1) * DIM];
let up = grid[i + ((j + DIM - 1) % DIM) * DIM];
let validOptions = [];
for (let option of up.options) {
let valid = tiles[option].down;
validOptions = validOptions.concat(valid);
}
checkValid(options, validOptions);
}
// Look right
if (i < DIM - 1) {
let right = grid[i + 1 + j * DIM];
let validOptions = [];
let right = grid[(i + 1) % DIM + j * DIM];
validOptions = [];
for (let option of right.options) {
let valid = tiles[option].left;
validOptions = validOptions.concat(valid);
}
checkValid(options, validOptions);
}
// Look down
if (j < DIM - 1) {
let down = grid[i + (j + 1) * DIM];
let validOptions = [];
let down = grid[i + ((j + 1) % DIM) * DIM];
validOptions = [];
for (let option of down.options) {
let valid = tiles[option].up;
validOptions = validOptions.concat(valid);
}
checkValid(options, validOptions);
}
// Look left
if (i > 0) {
let left = grid[i - 1 + j * DIM];
let validOptions = [];
let left = grid[((i + DIM - 1) % DIM) + j * DIM];
validOptions = [];
for (let option of left.options) {
let valid = tiles[option].right;
validOptions = validOptions.concat(valid);
}
checkValid(options, validOptions);
}

// I could immediately collapse if only one option left?
nextGrid[index] = new Cell(options);
Expand Down