77 lines
3.4 KiB
C#
77 lines
3.4 KiB
C#
using Microsoft.Xna.Framework.Input;
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using Syntriax.Engine.Core;
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using Syntriax.Engine.Input;
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namespace Pong.Behaviours;
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public class CameraController : BehaviourOverride
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{
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private MonoGameCamera2DBehaviour cameraBehaviour = null!;
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private IButtonInputs<Keys> buttonInputs = null!;
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private float defaultZoomLevel = 1f;
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protected override void OnFirstActiveFrame()
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{
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if (BehaviourController.TryGetBehaviour(out MonoGameCamera2DBehaviour? foundCameraBehaviour))
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cameraBehaviour = foundCameraBehaviour;
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cameraBehaviour ??= BehaviourController.AddBehaviour<MonoGameCamera2DBehaviour>();
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if (BehaviourController.TryGetBehaviour(out IButtonInputs<Keys>? foundButtonInputs))
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buttonInputs = foundButtonInputs;
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buttonInputs ??= BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
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buttonInputs.RegisterOnPress(Keys.F, SwitchToFullScreen);
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buttonInputs.RegisterOnPress(Keys.R, ResetCamera);
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}
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protected override void OnUpdate()
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{
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if (buttonInputs.IsPressed(Keys.U))
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cameraBehaviour.Zoom += Time.Elapsed.Nanoseconds * 0.00025f;
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if (buttonInputs.IsPressed(Keys.J))
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cameraBehaviour.Zoom -= Time.Elapsed.Nanoseconds * 0.00025f;
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if (buttonInputs.IsPressed(Keys.NumPad8))
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cameraBehaviour.BehaviourController.GameObject.Transform.Position += Vector2D.Up;
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if (buttonInputs.IsPressed(Keys.NumPad2))
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cameraBehaviour.BehaviourController.GameObject.Transform.Position -= Vector2D.Up;
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if (buttonInputs.IsPressed(Keys.NumPad6))
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cameraBehaviour.BehaviourController.GameObject.Transform.Position += Vector2D.Right;
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if (buttonInputs.IsPressed(Keys.NumPad4))
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cameraBehaviour.BehaviourController.GameObject.Transform.Position -= Vector2D.Right;
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if (buttonInputs.IsPressed(Keys.Q))
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cameraBehaviour.BehaviourController.GameObject.Transform.Rotation += Time.Elapsed.Nanoseconds * 0.0025f;
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if (buttonInputs.IsPressed(Keys.E))
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cameraBehaviour.BehaviourController.GameObject.Transform.Rotation -= Time.Elapsed.Nanoseconds * 0.0025f;
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}
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private void SwitchToFullScreen(IButtonInputs<Keys> inputs, Keys keys)
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{
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if (cameraBehaviour.Graphics.IsFullScreen)
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return;
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cameraBehaviour.Graphics.PreferMultiSampling = false;
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cameraBehaviour.Graphics.PreferredBackBufferWidth = cameraBehaviour.Graphics.GraphicsDevice.Adapter.CurrentDisplayMode.Width;
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cameraBehaviour.Graphics.PreferredBackBufferHeight = cameraBehaviour.Graphics.GraphicsDevice.Adapter.CurrentDisplayMode.Height;
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cameraBehaviour.Graphics.IsFullScreen = true;
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cameraBehaviour.Graphics.ApplyChanges();
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float previousScreenSize = Math.Sqrt(Math.Sqr(cameraBehaviour.Viewport.Width) + Math.Sqr(cameraBehaviour.Viewport.Height));
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float currentScreenSize = Math.Sqrt(Math.Sqr(cameraBehaviour.Graphics.GraphicsDevice.Viewport.Width) + Math.Sqr(cameraBehaviour.Graphics.GraphicsDevice.Viewport.Height));
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defaultZoomLevel /= previousScreenSize / currentScreenSize;
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cameraBehaviour.Zoom /= previousScreenSize / currentScreenSize;
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cameraBehaviour.Viewport = cameraBehaviour.Graphics.GraphicsDevice.Viewport;
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}
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private void ResetCamera(IButtonInputs<Keys> inputs, Keys keys)
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{
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cameraBehaviour.Zoom = defaultZoomLevel;
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Transform.Position = Vector2D.Zero;
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Transform.Rotation = 0f;
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}
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}
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