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authorFBeans <phil@pgburton.com>2022-05-21 19:07:32 +0100
committerFBeans <phil@pgburton.com>2022-05-21 19:07:32 +0100
commit02455892dac1d52914e5702fd8e895d5cee1f083 (patch)
tree5cbafc717c099ee42c32ee21270b569a55089261
parent5832634b35b475f607f4c695ccad310ee2467e57 (diff)
Add world, boid and all collision detectionHEADmain
Diffstat
-rw-r--r--.gitignore1
-rw-r--r--composer.json23
-rw-r--r--composer.lock2117
-rw-r--r--phpunit.xml7
-rw-r--r--scripts/run.php7
-rw-r--r--src/Collision/Collision.php141
-rw-r--r--src/Main.php22
-rw-r--r--src/World/Boid.php76
-rw-r--r--src/World/World.php57
-rw-r--r--src/bootstrap.php3
-rw-r--r--tests/Collision/CollisionTest.php364
-rw-r--r--tests/World/BoidTest.php45
-rw-r--r--tests/World/WorldTest.php25
-rw-r--r--tests/bootstrap.php3
14 files changed, 2891 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
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+ "phpstan/phpstan": "<0.12.20",
+ "vimeo/psalm": "<4.6.1 || 4.6.2"
+ },
+ "require-dev": {
+ "phpunit/phpunit": "^8.5.13"
+ },
+ "type": "library",
+ "extra": {
+ "branch-alias": {
+ "dev-master": "1.10-dev"
+ }
+ },
+ "autoload": {
+ "psr-4": {
+ "Webmozart\\Assert\\": "src/"
+ }
+ },
+ "notification-url": "https://packagist.org/downloads/",
+ "license": [
+ "MIT"
+ ],
+ "authors": [
+ {
+ "name": "Bernhard Schussek",
+ "email": "bschussek@gmail.com"
+ }
+ ],
+ "description": "Assertions to validate method input/output with nice error messages.",
+ "keywords": [
+ "assert",
+ "check",
+ "validate"
+ ],
+ "support": {
+ "issues": "https://github.com/webmozarts/assert/issues",
+ "source": "https://github.com/webmozarts/assert/tree/1.10.0"
+ },
+ "time": "2021-03-09T10:59:23+00:00"
+ }
+ ],
+ "aliases": [],
+ "minimum-stability": "stable",
+ "stability-flags": [],
+ "prefer-stable": false,
+ "prefer-lowest": false,
+ "platform": [],
+ "platform-dev": [],
+ "plugin-api-version": "2.1.0"
+}
diff --git a/phpunit.xml b/phpunit.xml
new file mode 100644
index 0000000..6560994
--- /dev/null
+++ b/phpunit.xml
@@ -0,0 +1,7 @@
+<phpunit bootstrap="tests/bootstrap.php">
+ <testsuites>
+ <testsuite name="unit">
+ <directory>tests</directory>
+ </testsuite>
+ </testsuites>
+</phpunit>
diff --git a/scripts/run.php b/scripts/run.php
new file mode 100644
index 0000000..b17d3b4
--- /dev/null
+++ b/scripts/run.php
@@ -0,0 +1,7 @@
+<?php
+
+require __DIR__.'/../src/bootstrap.php';
+
+use App\Main;
+
+$main = (new Main)->run();
diff --git a/src/Collision/Collision.php b/src/Collision/Collision.php
new file mode 100644
index 0000000..a896777
--- /dev/null
+++ b/src/Collision/Collision.php
@@ -0,0 +1,141 @@
+<?php
+
+namespace App\Collision;
+
+
+class Collision
+{
+ protected const BUFFER = 0.1;
+
+ public static function circleRectangle(int $c_radius, int $c_x, int $c_y, int $r_w, int $r_h, int $r_x, int $r_y): bool
+ {
+ $test_x = $c_x;
+ $test_y = $c_y;
+
+ if ($c_x < $r_x) {
+ $test_x = $r_x;
+ } elseif ($c_x > $r_x + $r_w) {
+ $test_x = $r_x + $r_w;
+ }
+
+ if ($c_y < $r_y) {
+ $test_y = $r_y;
+ } elseif ($c_y > $r_y + $r_h) {
+ $test_y = $r_y + $r_h;
+ }
+
+ $dist_x = $c_x - $test_x;
+ $dist_y = $c_y - $test_y;
+
+ $distance = sqrt( ($dist_x * $dist_y) + ($dist_y * $dist_y) );
+
+ if ($distance <= $c_radius) {
+ return true;
+ }
+
+ return false;
+ }
+
+ public static function circleWorld(int $c_radius, int $c_x, int $c_y, int $w_w, int $w_h, int $w_x, int $w_y): bool
+ {
+ if (static::circleOutsideRectangle($c_radius, $c_x, $c_y, $w_w, $w_h, $w_x, $w_y)) {
+ return true;
+ }
+
+ if (static::lineCircle($w_x, $w_x, $w_y, $w_y+$w_h, $c_x, $c_y, $c_radius)) {
+ return true;
+ }
+
+ if (static::lineCircle($w_x+$w_w, $w_x+$w_w, $w_y, $w_y+$w_h, $c_x, $c_y, $c_radius)) {
+ return true;
+ }
+
+ if (static::lineCircle($w_x, $w_x+$w_w, $w_y, $w_y, $c_x, $c_y, $c_radius)) {
+ return true;
+ }
+
+ if (static::lineCircle($w_x, $w_x+$w_w, $w_y+$w_h, $w_y+$w_h, $c_x, $c_y, $c_radius)) {
+ return true;
+ }
+
+ return false;
+
+ }
+
+ public static function circleOutsideRectangle(int $c_radius, int $c_x, int $c_y, int $w_w, int $w_h, int $w_x, int $w_y)
+ {
+ if ($c_x + $c_radius < $w_x) {
+ return true;
+ }
+
+ if ($c_x - $c_radius > $w_x + $w_w) {
+ return true;
+ }
+
+ if ($c_y + $c_radius < $w_y) {
+ return true;
+ }
+
+ if ($c_y - $c_radius > $w_y + $w_h) {
+ return true;
+ }
+
+ return false;
+ }
+
+ public static function lineCircle(int $x_1, int $x_2, int $y_1, int $y_2, int $c_x, int $c_y, int $c_radius): bool
+ {
+ if (static::pointCircle($x_1, $y_1, $c_x, $c_y, $c_radius)) {
+ return true;
+ }
+
+ if (static::pointCircle($x_2, $y_2, $c_x, $c_y, $c_radius)) {
+ return true;
+ }
+
+ $length = static::distance($x_1, $x_2, $y_1, $y_2);
+
+ $dot = ((($c_x - $x_1) * ($x_2 - $x_1)) + (($c_y - $y_1) * ($y_2 - $y_1))) / ($length * $length);
+ $dot = number_format($dot, 4);
+
+ $closest_x = $x_1 + ($dot * ($x_2 - $x_1));
+ $closest_y = $y_1 +_($dot * ($y_2 - $y_1));
+
+ if (!static::linePoint($x_1, $x_2, $y_1, $y_2, $closest_x, $closest_y)) {
+ return false;
+ }
+
+ $distance = static::distance($closest_x, $c_x, $closest_y, $c_y);
+
+ return $distance <= $c_radius;
+ }
+
+ public static function linePoint(int $x_1, int $x_2, int $y_1, int $y_2, int $p_x, int $p_y)
+ {
+ $d_1 = static::distance($p_x, $x_1, $p_y, $y_1);
+ $d_2 = static::distance($p_x, $x_2, $p_y, $y_2);
+
+ $length = static::distance($x_1, $x_2, $y_1, $y_2);
+
+ return $d_1 + $d_2 >= $length - static::BUFFER
+ && $d_1 + $d_2 <= $length + static::BUFFER;
+ }
+
+ public static function pointCircle(int $p_x, int $p_y, int $c_x, int $c_y, int $c_radius): bool
+ {
+ $distance = static::distance($p_x, $c_x, $p_y, $c_y);
+
+ return $distance <= $c_radius;
+ }
+
+ public static function distance(int $x_1, int $x_2, int $y_1, int $y_2): float
+ {
+ $d_x = $x_1 - $x_2;
+ $d_y = $y_1 - $y_2;
+
+ return number_format(
+ sqrt( ($d_x * $d_x) + ($d_y * $d_y)),
+ 2
+ );
+ }
+}
diff --git a/src/Main.php b/src/Main.php
new file mode 100644
index 0000000..5678111
--- /dev/null
+++ b/src/Main.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App;
+
+use App\World\Boid;
+use App\World\World;
+
+class Main
+{
+ public function __construct()
+ {
+ }
+
+ public function run()
+ {
+ $world = new World(200, 200);
+ echo "New World Created. `{$world->name()}` ({$world->width()} x {$world->height()})." . PHP_EOL;
+
+ $boid = new Boid(5, 10, 10);
+ echo "New Boid Created. `{$boid->name()}` ({$boid->position()[0]}, {$boid->position()[1]})." . PHP_EOL;
+ }
+}
diff --git a/src/World/Boid.php b/src/World/Boid.php
new file mode 100644
index 0000000..3787516
--- /dev/null
+++ b/src/World/Boid.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace App\World;
+
+use App\Collision\Collision;
+use Exception;
+
+class Boid
+{
+ protected $radius;
+ private $initial_x;
+ private $initial_y;
+
+ protected $x;
+ protected $y;
+
+ public function __construct(int $radius, int $initial_x, int $initial_y, ?string $name = null)
+ {
+ $this->radius($radius);
+ $this->initial_x = $initial_x;
+ $this->initial_y = $initial_y;
+
+ $this->position($initial_x, $initial_y);
+
+ if (!$name) {
+ $name = $this->generateName();
+ }
+
+ $this->name($name);
+ }
+
+ public function radius(int $radius = null): int|Boid
+ {
+ if ($radius) {
+ $this->radius = $radius;
+ return $this;
+ }
+
+ return $this->radius;
+ }
+
+ public function position(int $x = null, int $y = null): array|Boid
+ {
+ if ($x !== null xor $y !== null) {
+ throw new Exception('Either 0 or 2 arguments are requried for Boid::position()');
+ }
+
+ if ($x !== null) {
+ $this->x = $x;
+ $this->y = $y;
+ return $this;
+ }
+
+ return [$this->x, $this->y];
+ }
+
+ public function name(string $name = null): string|Boid
+ {
+ if ($name) {
+ $this->name = $name;
+ return $this;
+ }
+
+ return $this->name;
+ }
+
+ public function isCollisionWithWorld(int $w_w, int $w_h, int $w_x, int $w_y): bool
+ {
+ return Collision::circleWorld($this->radius, $this->x, $this->y, $w_w, $w_h, $w_x, $w_y);
+ }
+
+ protected function generateName()
+ {
+ return uniqid('boid');
+ }
+}
diff --git a/src/World/World.php b/src/World/World.php
new file mode 100644
index 0000000..06499e8
--- /dev/null
+++ b/src/World/World.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace App\World;
+
+class World
+{
+ protected $width;
+ protected $height;
+ protected $name;
+
+ public function __construct(int $width, int $height, ?string $name = null)
+ {
+ $this->width($width);
+ $this->height($height);
+
+ if (!$name) {
+ $name = $this->generateName();
+ }
+
+ $this->name($name);
+ }
+
+ public function width(int $width = null): int|World
+ {
+ if ($width) {
+ $this->width = $width;
+ return $this;
+ }
+
+ return $this->width;
+ }
+
+ public function height(int $height = null): int|World
+ {
+ if ($height) {
+ $this->height = $height;
+ return $this;
+ }
+
+ return $this->height;
+ }
+
+ public function name(string $name = null): string|World
+ {
+ if ($name) {
+ $this->name = $name;
+ return $this;
+ }
+
+ return $this->name;
+ }
+
+ protected function generateName()
+ {
+ return uniqid('world');
+ }
+}
diff --git a/src/bootstrap.php b/src/bootstrap.php
new file mode 100644
index 0000000..991ea43
--- /dev/null
+++ b/src/bootstrap.php
@@ -0,0 +1,3 @@
+<?php
+
+require __DIR__.'/../vendor/autoload.php';
diff --git a/tests/Collision/CollisionTest.php b/tests/Collision/CollisionTest.php
new file mode 100644
index 0000000..d6af549
--- /dev/null
+++ b/tests/Collision/CollisionTest.php
@@ -0,0 +1,364 @@
+<?php
+
+namespace Tests\Collision;
+
+use PHPUnit\Framework\TestCase;
+use App\Collision\Collision;
+
+class CollisionTest extends TestCase
+{
+ /**
+ * @dataProvider circleRectangleData
+ */
+ public function testCircleRectangle(int $c_radius, int $c_x, int $c_y, int $r_w, int $r_h, int $r_x, int $r_y, bool $expected)
+ {
+ $result = Collision::circleRectangle($c_radius, $c_x, $c_y, $r_w, $r_h, $r_x, $r_y);
+
+ $this->assertEquals($expected, $result);
+ }
+
+ public function circleRectangleData()
+ {
+ return [
+ [
+ 1, // circle radius
+ 0, // circle x
+ 0, // circle y
+ 1, // rectangle width
+ 1, // rectangle height
+ 100, // rectangle x
+ 100, // rectangle y,
+ false // expected collison
+ ],
+ [
+ 10, // circle radius
+ 250, // circle x
+ 250, // circle y
+ 200, // rectangle width
+ 200, // rectangle height
+ 0, // rectangle x
+ 0, // rectangle y,
+ false // expected collison
+ ],
+ [
+ 10, // circle radius
+ 10, // circle x
+ 10, // circle y
+ 10, // rectangle width
+ 10, // rectangle height
+ 0, // rectangle x
+ 0, // rectangle y,
+ true // expected collison
+ ],
+ [
+ 10, // circle radius
+ 200, // circle x
+ 50, // circle y
+ 200, // rectangle width
+ 200, // rectangle height
+ 0, // rectangle x
+ 0, // rectangle y,
+ true // expected collison
+ ],
+ ];
+ }
+
+ /**
+ * @dataProvider circleWorldData
+ */
+ public function testCircleWorld(int $c_radius, int $c_x, int $c_y, int $w_w, int $w_h, int $w_x, int $w_y, bool $expected)
+ {
+ $result = Collision::circleWorld($c_radius, $c_x, $c_y, $w_w, $w_h, $w_x, $w_y);
+
+ $this->assertEquals($expected, $result);
+ }
+
+ public function circleWorldData()
+ {
+ return [
+ [ // inside
+ 1, // circle radius
+ 50, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ false // expected collison
+ ],
+ [ // outside to left
+ 1, // circle radius
+ -100, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping left
+ 1, // circle radius
+ 0, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // outside to right
+ 1, // circle radius
+ 200, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping right
+ 1, // circle radius
+ 100, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // outside to top
+ 1, // circle radius
+ 50, // circle x
+ -100, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping top
+ 1, // circle radius
+ 50, // circle x
+ 0, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // outside to bottom
+ 1, // circle radius
+ 50, // circle x
+ 200, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping bottom
+ 1, // circle radius
+ 50, // circle x
+ 100, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ ];
+ }
+
+ /**
+ * @dataProvider circleOutsideRectangleData
+ */
+ public function testCircleOutsideRectangle(int $c_radius, int $c_x, int $c_y, int $w_w, int $w_h, int $w_x, int $w_y, bool $expected)
+ {
+ $result = Collision::circleOutsideRectangle($c_radius, $c_x, $c_y, $w_w, $w_h, $w_x, $w_y);
+
+ $this->assertEquals($expected, $result);
+ }
+
+ public function circleOutsideRectangleData()
+ {
+ return [
+ [ // inside
+ 1, // circle radius
+ 50, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ false // expected collison
+ ],
+ [ // outside to left
+ 1, // circle radius
+ -100, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping left
+ 1, // circle radius
+ 0, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ false // expected collison
+ ],
+ [ // outside to right
+ 1, // circle radius
+ 200, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping right
+ 1, // circle radius
+ 100, // circle x
+ 50, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ false // expected collison
+ ],
+ [ // outside to top
+ 1, // circle radius
+ 50, // circle x
+ -100, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping top
+ 1, // circle radius
+ 50, // circle x
+ 0, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ false // expected collison
+ ],
+ [ // outside to bottom
+ 1, // circle radius
+ 50, // circle x
+ 200, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ true // expected collison
+ ],
+ [ // clipping bottom
+ 1, // circle radius
+ 50, // circle x
+ 100, // circle y
+ 100, // world width
+ 100, // world height
+ 0, // world x
+ 0, // world y,
+ false // expected collison
+ ],
+
+ ];
+ }
+
+ /**
+ * @dataProvider lineCircleData
+ */
+ public function testLineCircle(int $x_1, int $x_2, int $y_1, int $y_2, int $c_x, int $c_y, int $c_radius, bool $expected)
+ {
+ $result = Collision::lineCircle($x_1, $x_2, $y_1, $y_2, $c_x, $c_y, $c_radius);
+
+ $this->assertEquals($expected, $result);
+ }
+
+ public function lineCircleData()
+ {
+ return [
+ [0, 0, 0, 10, 0, 0, 1, true],
+ [0, 0, 0, 10, 0, 4, 1, true],
+ [0, 0, 0, 10, 4, 0, 1, false],
+ [0, 10, 0, 10, 0, 0, 1, true],
+ [0, 10, 0, 10, 5, 5, 1, true],
+ [0, 10, 0, 10, 11, 11, 1, false],
+ [0, 10, 0, 10, 12, 12, 1, false],
+ ];
+ }
+
+ /**
+ * @dataProvider linePointData
+ */
+ public function testLinePoint(int $x_1, int $x_2, int $y_1, int $y_2, int $p_x, int $p_y, bool $expected)
+ {
+ $result = Collision::linePoint($x_1, $x_2, $y_1, $y_2, $p_x, $p_y);
+
+ $this->assertEquals($expected, $result);
+ }
+
+ public function linePointData()
+ {
+ return [
+ [0, 0, 0, 10, 0, 0, true],
+ [0, 0, 0, 10, 0, 4, true],
+ [0, 0, 0, 10, 4, 0, false],
+ [0, 10, 0, 10, 0, 0, true],
+ [0, 10, 0, 10, 5, 5, true],
+ [0, 10, 0, 10, 11, 11, false],
+ ];
+ }
+
+ /**
+ * @dataProvider pointCircleData
+ */
+ public function testPointCirlce(int $p_x, int $p_y, int $c_x, int $c_y, int $c_radius, bool $expected)
+ {
+ $result = Collision::pointCircle($p_x, $p_y, $c_x, $c_y, $c_radius);
+
+ $this->assertEquals($expected, $result);
+ }
+
+ public function pointCircleData()
+ {
+ return [
+ [0, 0, 0, 0, 1, true],
+ [0, 0, 10, 10, 1, false],
+ [0, 0, 5, 5, 11, true],
+ [0, 0, 4, 0, 1, false],
+ [0, 10, 4, 0, 1, false],
+ ];
+ }
+
+ /**
+ * @dataProvider distanceData
+ */
+ public function testDistance(int $x_1, int $x_2, int $y_1, int $y_2, float $expected)
+ {
+ $distance = Collision::distance($x_1, $x_2, $y_1, $y_2);
+
+ $this->assertEquals($expected, $distance);
+ }
+
+ public function distanceData()
+ {
+ return [
+ [1, 1, 1, 1, 0],
+ [0, 1, 0, 1, 1.41],
+ [0, 2, 1, 3, 2.83],
+ [0, 13, 0, 3, 13.34],
+ ];
+ }
+}
diff --git a/tests/World/BoidTest.php b/tests/World/BoidTest.php
new file mode 100644
index 0000000..1c7202d
--- /dev/null
+++ b/tests/World/BoidTest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Tests\World;
+
+use App\World\Boid;
+use App\World\World;
+use PHPUnit\Framework\TestCase;
+
+class BoidTest extends TestCase
+{
+ public function testBoidConstruction()
+ {
+ $boid = new Boid(5, 1, 2, 'boid');
+
+ $this->assertEquals(5, $boid->radius());
+ $this->assertEquals([1, 2], $boid->position());
+ $this->assertEquals('boid', $boid->name());
+
+ $boid = new Boid(5, 1, 2);
+ $this->assertEquals(5, $boid->radius());
+ $this->assertEquals([1, 2], $boid->position());
+ $this->assertTrue(is_string($boid->name()));
+ $this->assertTrue(strpos($boid->name(), 'boid') === 0);
+ }
+
+ public function testBoidWorldCollision()
+ {
+ $world = new World(200, 200);
+
+ $boid = new Boid(5, 10, 10);
+ $this->assertEquals(false, $boid->isCollisionWithWorld($world->width(), $world->height(), 0, 0));
+
+ $boid = new Boid(5, 0, 0);
+ $this->assertEquals(true, $boid->isCollisionWithWorld($world->width(), $world->height(), 0, 0));
+
+ $boid = new Boid(5, -100, 100);
+ $this->assertEquals(true, $boid->isCollisionWithWorld($world->width(), $world->height(), 0, 0));
+
+ $boid = new Boid(5, 100, -100);
+ $this->assertEquals(true, $boid->isCollisionWithWorld($world->width(), $world->height(), 0, 0));
+
+ $boid = new Boid(5, 200, 200);
+ $this->assertEquals(true, $boid->isCollisionWithWorld($world->width(), $world->height(), 0, 0));
+ }
+}
diff --git a/tests/World/WorldTest.php b/tests/World/WorldTest.php
new file mode 100644
index 0000000..c2b117e
--- /dev/null
+++ b/tests/World/WorldTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Tests\World;
+
+use App\World\World;
+use PHPUnit\Framework\TestCase;
+
+class WorldTest extends TestCase
+{
+ public function testWorldConstruction()
+ {
+ $world = new World(1, 2, 'test-world');
+
+ $this->assertEquals('test-world', $world->name());
+ $this->assertEquals(1, $world->width());
+ $this->assertEquals(2, $world->height());
+
+ $world = new World(1, 2);
+
+ $this->assertTrue(is_string($world->name()));
+ $this->assertTrue(strpos($world->name(), 'world') === 0);
+ $this->assertEquals(1, $world->width());
+ $this->assertEquals(2, $world->height());
+ }
+}
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..991ea43
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,3 @@
+<?php
+
+require __DIR__.'/../vendor/autoload.php';
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-19 01:07:25 +0000