70 lines
1.4 KiB
JavaScript
70 lines
1.4 KiB
JavaScript
import * as Vector from Geometry.Vector;
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return {
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make: make,
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at: at,
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asAFunction: asAFunction,
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column: column,
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generate: generate,
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iter: iter,
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row: row,
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set: set,
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square: square
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};
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function generate(width, height, f) {
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var result = [];
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for(var row = 0; row < height; row++) {
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result[row] = [];;
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for(var column = 0; column < width; column++) {
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result[row].push(f(Vector.make(row, column)));
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}
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}
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return result;
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}
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function make(width, height) {
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if(width instanceof Object && width.row != undefined) {
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height = width.row;
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width = width.column;
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}
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return Array.from({length: height}).map(
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function() {return Array.from({length: width});}
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);
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}
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function iter(grid, f) {
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map(grid, f);
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}
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function map(grid, f) {
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return grid.map(function(rowArray, row) {return rowArray.map(
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function(value, column) {return f(value, Vector.make(row, column), grid);}
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)});
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}
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function square(size, value) {
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var generator = value instanceof Function ? value : function() {return value;};
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return map(make(size, size), function(_, cell) {return generator(cell);});
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}
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function at(grid, vector) {
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return grid[vector.row][vector.column];
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}
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function asAFunction(grid) {
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return function (vector) {return at(grid, vector);};
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}
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function set(grid, vector, value) {
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return grid[vector.row][vector.column] = value;
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}
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function row(grid, n) {
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return grid[n];
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}
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function column(grid, n) {
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return grid.map(function(row) {return row[n];});
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}
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