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refactoring the platformer to use the entity component system

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Dylan Wilson
2018-05-31 22:12:59 +10:00
parent 8cc2ce285e
commit 0ec192543d
13 changed files with 120 additions and 292 deletions
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Source/Demos/Platformer/Systems/PlayerSystem.cs
+19 -16
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@@ -1,35 +1,38 @@
using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Input;
using MonoGame.Extended;
using MonoGame.Extended.Entities;
using MonoGame.Extended.Input;
using Platformer.Collisions;
using Platformer.Components;
namespace Platformer.Systems
{
[Aspect(AspectType.All, typeof(VelocityComponent), typeof(PlayerComponent))]
[Aspect(AspectType.All, typeof(Body), typeof(PlayerState), typeof(Transform2))]
[EntitySystem(GameLoopType.Update, Layer = 0)]
public class PlayerSystem : EntityProcessingSystem
{
private readonly KeyboardInputService _inputService;
public PlayerSystem(KeyboardInputService inputService)
{
_inputService = inputService;
}
protected override void Process(GameTime gameTime, Entity entity)
{
var movement = entity.Get<VelocityComponent>();
var player = entity.Get<PlayerState>();
var transform = entity.Get<Transform2>();
var body = entity.Get<Body>();
var keyboardState = KeyboardExtended.GetState();
movement.Velocity = new Vector2(0, movement.Velocity.Y);
if (keyboardState.IsKeyDown(Keys.Right))
body.Velocity.X += 150;
if (_inputService.IsKeyDown(Keys.Left) || _inputService.IsKeyDown(Keys.A))
movement.Velocity = new Vector2(-260, movement.Velocity.Y);
if (keyboardState.IsKeyDown(Keys.Left))
body.Velocity.X -= 150;
if (_inputService.IsKeyDown(Keys.Right) || _inputService.IsKeyDown(Keys.D))
movement.Velocity = new Vector2(260, movement.Velocity.Y);
if (keyboardState.WasKeyJustUp(Keys.Up))
body.Velocity.Y -= 550 + Math.Abs(body.Velocity.X) * 0.4f;
if (_inputService.IsKeyTapped(Keys.Up) || _inputService.IsKeyTapped(Keys.W))
movement.Velocity = new Vector2(movement.Velocity.X, -600);
body.Velocity.X *= 0.7f;
// TODO: Can we remove this?
transform.Position = body.Position;
}
}
}