Initial commit of 001code-html Scratch frontend project.

Includes scratch-gui, scratch-vm, scratch-blocks, scratch-render, scratch-l10n, and deployment config.

Co-authored-by: Cursor <cursoragent@cursor.com>

scratch-vm/test/unit/util_math.js

@@ -0,0 +1,70 @@
+const test = require('tap').test;
+const math = require('../../src/util/math-util');
+
+test('degToRad', t => {
+    t.strictEqual(math.degToRad(0), 0);
+    t.strictEqual(math.degToRad(1), 0.017453292519943295);
+    t.strictEqual(math.degToRad(180), Math.PI);
+    t.strictEqual(math.degToRad(360), 2 * Math.PI);
+    t.strictEqual(math.degToRad(720), 4 * Math.PI);
+    t.end();
+});
+
+test('radToDeg', t => {
+    t.strictEqual(math.radToDeg(0), 0);
+    t.strictEqual(math.radToDeg(1), 57.29577951308232);
+    t.strictEqual(math.radToDeg(180), 10313.240312354817);
+    t.strictEqual(math.radToDeg(360), 20626.480624709635);
+    t.strictEqual(math.radToDeg(720), 41252.96124941927);
+    t.end();
+});
+
+test('clamp', t => {
+    t.strictEqual(math.clamp(0, 0, 10), 0);
+    t.strictEqual(math.clamp(1, 0, 10), 1);
+    t.strictEqual(math.clamp(-10, 0, 10), 0);
+    t.strictEqual(math.clamp(100, 0, 10), 10);
+    t.end();
+});
+
+test('wrapClamp', t => {
+    t.strictEqual(math.wrapClamp(0, 0, 10), 0);
+    t.strictEqual(math.wrapClamp(1, 0, 10), 1);
+    t.strictEqual(math.wrapClamp(-10, 0, 10), 1);
+    t.strictEqual(math.wrapClamp(100, 0, 10), 1);
+    t.end();
+});
+
+test('tan', t => {
+    t.strictEqual(math.tan(90), Infinity);
+    t.strictEqual(math.tan(180), 0);
+    t.strictEqual(math.tan(-90), -Infinity);
+    t.strictEqual(math.tan(33), 0.6494075932);
+    t.end();
+});
+
+test('reducedSortOrdering', t => {
+    t.deepEqual(math.reducedSortOrdering([5, 18, 6, 3]), [1, 3, 2, 0]);
+    t.deepEqual(math.reducedSortOrdering([5, 1, 56, 19]), [1, 0, 3, 2]);
+    t.end();
+});
+
+test('inclusiveRandIntWithout', t => {
+    const withRandomValue = function (randValue, ...args) {
+        const oldMathRandom = Math.random;
+        Object.assign(global.Math, {random: () => randValue});
+        const result = math.inclusiveRandIntWithout(...args);
+        Object.assign(global.Math, {random: oldMathRandom});
+        return result;
+    };
+
+    t.strictEqual(withRandomValue(3 / 6, 0, 6, 2), 4);
+    t.strictEqual(withRandomValue(2 / 6, 0, 6, 2), 3);
+    t.strictEqual(withRandomValue(1 / 6, 0, 6, 2), 1);
+    t.strictEqual(withRandomValue(1.9 / 6, 0, 6, 2), 1);
+
+    t.strictEqual(withRandomValue(3 / 4, 10, 14, 10), 14);
+    t.strictEqual(withRandomValue(0 / 4, 10, 14, 10), 11);
+
+    t.end();
+});