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ccee9a466b
* 👌 Use `Offset` type directly in `JoystickAction.update` calculations (#631) * Move files to src and comply with the dart package layout convention * Fixing widgets example Co-authored-by: Serge Matveenko <lig@countzero.co> Co-authored-by: Erick Zanardo <erickzanardoo@gmail.com>
104 lines
2.5 KiB
Dart
104 lines
2.5 KiB
Dart
import 'package:flame/extensions.dart';
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import 'package:test/test.dart';
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import 'dart:math' as math;
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void expectDouble(double d1, double d2) {
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expect((d1 - d2).abs() <= 0.0001, true);
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}
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void main() {
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group('position test', () {
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test('test add', () {
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final Vector2 p = Vector2(0.0, 5.0) + Vector2(5.0, 5.0);
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expectDouble(p.x, 5.0);
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expectDouble(p.y, 10.0);
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});
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test('test clone', () {
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final Vector2 p = Vector2(1.0, 0.0);
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final Vector2 clone = p.clone();
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clone.scale(2.0);
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expectDouble(p.x, 1.0);
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expectDouble(clone.x, 2.0);
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});
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test('test rotate', () {
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final Vector2 p = Vector2(1.0, 0.0)..rotate(math.pi / 2);
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expectDouble(p.x, 0.0);
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expectDouble(p.y, 1.0);
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});
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test('test length', () {
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final Vector2 p1 = Vector2(3.0, 4.0);
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expectDouble(p1.length, 5.0);
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final Vector2 p2 = Vector2(2.0, 0.0);
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expectDouble(p2.length, 2.0);
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final Vector2 p3 = Vector2(0.0, 1.5);
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expectDouble(p3.length, 1.5);
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});
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test('test distance', () {
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final Vector2 p1 = Vector2(10.0, 20.0);
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final Vector2 p2 = Vector2(13.0, 24.0);
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final double result = p1.distanceTo(p2);
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expectDouble(result, 5.0);
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});
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test('equality', () {
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final Vector2 p1 = Vector2.zero();
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final Vector2 p2 = Vector2.zero();
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expect(p1 == p2, true);
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});
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test('non equality', () {
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final Vector2 p1 = Vector2.zero();
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final Vector2 p2 = Vector2(1.0, 0.0);
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expect(p1 == p2, false);
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});
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test('hashCode', () {
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final Vector2 p1 = Vector2(2.0, -1.0);
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final Vector2 p2 = Vector2(1.0, 0.0);
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expect(p1.hashCode == p2.hashCode, false);
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});
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test('scaleTo', () {
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final Vector2 p = Vector2(1.0, 0.0)
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..rotate(math.pi / 4)
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..scaleTo(2.0);
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expect(p.length, 2.0);
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p.rotate(-math.pi / 4);
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expect(p.length, 2.0);
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expect(p.x, 2.0);
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expect(p.y, 0.0);
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});
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test('scaleTo the zero vector', () {
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final Vector2 p = Vector2.zero();
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expect(p.normalized().length, 0.0);
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});
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test('limit', () {
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final Vector2 p1 = Vector2(1.0, 0.0);
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p1.clampScalar(0, 0.75);
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expect(p1.length, 0.75);
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expect(p1.x, 0.75);
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expect(p1.y, 0.0);
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final Vector2 p2 = Vector2(1.0, 1.0);
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p2.clampScalar(0, 3.0);
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expectDouble(p2.length, math.sqrt(2));
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expect(p2.x, 1.0);
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expect(p2.y, 1.0);
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p2.clampScalar(0, 1.0);
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expectDouble(p2.length, math.sqrt(2));
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expect(p2.x, p2.y);
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});
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});
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}
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