Add ship

src/classes/Ship.ts

@@ -0,0 +1,48 @@
+import Phaser from 'phaser'
+
+export default class Ship extends Phaser.Physics.Arcade.Sprite {
+  readonly acceleration = 5
+  readonly dragForce = 0.6
+
+  readonly colliderRadiusRatio = 0.43
+  readonly wrapMargin = 10
+
+  constructor(scene: Phaser.Scene) {
+    super(
+      scene,
+      scene.physics.world.bounds.centerX,
+      scene.physics.world.bounds.centerY,
+      'ship'
+    )
+
+    scene.add.existing(this)
+    scene.physics.add.existing(this)
+
+    scene.input.on('pointermove', (pointer) => {
+      this.rotation = Phaser.Math.Angle.BetweenPoints(this, pointer) + Math.PI / 2
+    })
+
+    this.setDamping(true)
+    this.setDrag(this.dragForce)
+    this.body.setCircle(this.width * this.colliderRadiusRatio)
+  }
+
+  preUpdate(time, delta) {
+    super.preUpdate(time, delta)
+
+    const keyUp = this.scene.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.W)
+    const keyDown = this.scene.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.S)
+    const keyLeft = this.scene.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.A)
+    const keyRight = this.scene.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.D)
+
+    const vec = new Phaser.Math.Vector2(0, 0)
+
+    if (keyUp.isDown) vec.y = -this.acceleration
+    if (keyDown.isDown) vec.y = this.acceleration
+    if (keyRight.isDown) vec.x = this.acceleration
+    if (keyLeft.isDown) vec.x = -this.acceleration
+
+    this.body.velocity.add(vec)
+    this.scene.physics.world.wrap(this, this.wrapMargin)
+  }
+}