Gottfried/glitchy-engine-beef
1
0
Fork 0
mirror of https://github.com/aharabada/glitchy-engine-beef.git synced 2026-09-05 13:01:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added OrthographicCameraController

Browse Source
This commit is contained in:
Simon Lübeß
2021-08-04 17:22:49 +02:00
parent 3ac99491cf
commit 0735aae74f
4 changed files with 136 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files
GlitchyEngine/src/OrthographicCameraController.bf
+122
View File
@@ -0,0 +1,122 @@
using GlitchyEngine.Renderer;
using GlitchyEngine.Events;
using GlitchyEngine.Math;
using System;
namespace GlitchyEngine
{
/// A simple controller for an orthographic camera
public class OrthographicCameraController
{
private OrthographicCamera _camera ~ delete _;
private float _aspectRatio;
private float _zoomLevel = 1.0f;
private bool _rotation;
private Vector3 _cameraPosition;
private float _cameraRotation;
private float _cameraTranslationSpeed = 1.0f;
private float _cameraRotationSpeed = 1.0f;
public OrthographicCamera Camera => _camera;
public this(float aspectRatio, bool rotation = false)
{
_aspectRatio = aspectRatio;
_rotation = rotation;
_camera = new OrthographicCamera();
_camera.NearPlane = -10f;
_camera.FarPlane = 10f;
UpdateCamera();
}
public void Update(GameTime gameTime)
{
if(Application.Get().Window.IsActive)
{
Vector3 movement = .();
if(Input.IsKeyPressed(Key.W))
{
movement.Y += 1;
}
if(Input.IsKeyPressed(Key.S))
{
movement.Y -= 1;
}
if(Input.IsKeyPressed(Key.A))
{
movement.X -= 1;
}
if(Input.IsKeyPressed(Key.D))
{
movement.X += 1;
}
if(movement != .Zero)
movement.Normalize();
movement *= (float)(gameTime.FrameTime.TotalSeconds) * _cameraTranslationSpeed;
_cameraPosition += movement;
if(_rotation)
{
if(Input.IsKeyPressed(Key.Q))
{
_cameraRotation += (float)(gameTime.FrameTime.TotalSeconds) * _cameraRotationSpeed;
}
if(Input.IsKeyPressed(Key.E))
{
_cameraRotation -= (float)(gameTime.FrameTime.TotalSeconds) * _cameraRotationSpeed;
}
}
UpdateCamera();
}
}
public void OnEvent(Event e)
{
EventDispatcher dispatcher = EventDispatcher(e);
dispatcher.Dispatch<MouseScrolledEvent>(scope => OnMouseScrolled);
dispatcher.Dispatch<WindowResizeEvent>(scope => OnWindowResized);
}
private bool OnMouseScrolled(MouseScrolledEvent e)
{
_zoomLevel -= e.YOffset * 0.25f;
_zoomLevel = Math.Max(_zoomLevel, 0.25f);
UpdateCamera();
return false;
}
private bool OnWindowResized(WindowResizeEvent e)
{
_aspectRatio = (float)e.Width / (float)e.Height;
UpdateCamera();
return false;
}
private void UpdateCamera()
{
_camera.Left = -_aspectRatio * _zoomLevel;
_camera.Right = _aspectRatio * _zoomLevel;
_camera.Top = _zoomLevel;
_camera.Bottom = -_zoomLevel;
_camera.Rotation = .(_camera.Rotation.X, _camera.Rotation.Y, _cameraRotation);
_camera.Position = _cameraPosition;
_camera.Update();
}
}
}
Sandbox/BeefProj.toml
+1 -1
View File
@@ -5,7 +5,7 @@ Dependencies = {GlitchyEngine = "*", corlib = "*", LodePng = "*"}
Name = "Sandbox"
TargetType = "BeefGUIApplication"
StartupObject = "GlitchyEngine.Program"
ProcessorMacros = ["SANDBOX_2D"]
ProcessorMacros = ["!SANDBOX_2D"]
[Configs.Debug.Win64]
CLibType = "DynamicDebug"
Sandbox/src/SandboxApp.bf
+10 -49
View File
@@ -70,6 +70,8 @@ namespace Sandbox
EcsWorld _world = new EcsWorld() ~ delete _;
OrthographicCameraController _cameraController ~ delete _;
private Vector3 CircleCoord(float angle)
{
return .(Math.Cos(angle), Math.Sin(angle), 0);
@@ -157,7 +159,7 @@ namespace Sandbox
}
// Create rasterizer state
GlitchyEngine.Renderer.RasterizerStateDescription rsDesc = .(.Solid, .Back, true);
RasterizerStateDescription rsDesc = .(.Solid, .Back, true);
_rasterizerState = new RasterizerState(_context, rsDesc);
_texture = new Texture2D(_context, "content/Textures/Checkerboard.dds");
@@ -180,9 +182,10 @@ namespace Sandbox
_opaqueBlendState = new BlendState(_context, .Default);
InitEcs();
}
Entity _cameraEntity;
_cameraController = new OrthographicCameraController(Application.Get().Window.Context.SwapChain.BackbufferViewport.Width /
Application.Get().Window.Context.SwapChain.BackbufferViewport.Height);
}
void InitEcs()
{
@@ -190,16 +193,6 @@ namespace Sandbox
_world.Register<MeshComponent>();
_world.Register<CameraComponent>();
// Create camera entity
_cameraEntity = _world.NewEntity();
var cameraTransform = _world.AssignComponent<TransformComponent>(_cameraEntity);
var camera = _world.AssignComponent<CameraComponent>(_cameraEntity);
*cameraTransform = TransformComponent();
camera.NearPlane = 0.1f;
camera.FarPlane = 10.0f;
camera.FovY = Math.PI_f / 4;
cameraTransform.Position = .(0, -1, -5);
for(int x < 20)
for(int y < 20)
{
@@ -215,42 +208,8 @@ namespace Sandbox
public override void Update(GameTime gameTime)
{
var cameraTransform = _world.GetComponent<TransformComponent>(_cameraEntity);
if(Application.Get().Window.IsActive)
{
Vector2 movement = .();
if(Input.IsKeyPressed(Key.W))
{
movement.Y += 1;
}
if(Input.IsKeyPressed(Key.S))
{
movement.Y -= 1;
}
if(Input.IsKeyPressed(Key.A))
{
movement.X -= 1;
}
if(Input.IsKeyPressed(Key.D))
{
movement.X += 1;
}
if(movement != .Zero)
movement.Normalize();
movement *= (float)(gameTime.FrameTime.TotalSeconds);
cameraTransform.Position += .(movement, 0);
cameraTransform.Update();
}
var camera = _world.GetComponent<CameraComponent>(_cameraEntity);
camera.Aspect = Application.Get().Window.Context.SwapChain.BackbufferViewport.Width /
Application.Get().Window.Context.SwapChain.BackbufferViewport.Height;
_cameraController.Update(gameTime);
RenderCommand.Clear(null, .(0.2f, 0.2f, 0.2f));
@@ -262,7 +221,7 @@ namespace Sandbox
_context.SetViewport(_context.SwapChain.BackbufferViewport);
Renderer.BeginScene(_world, _cameraEntity);
Renderer.BeginScene(_cameraController.Camera);
_opaqueBlendState.Bind();
@@ -312,6 +271,8 @@ namespace Sandbox
public override void OnEvent(Event event)
{
_cameraController.OnEvent(event);
EventDispatcher dispatcher = EventDispatcher(event);
dispatcher.Dispatch<ImGuiRenderEvent>(scope (e) => OnImGuiRender(e));
Sandbox/src/SandboxApp2D.bf
+2 -2
View File
@@ -283,11 +283,11 @@ namespace Sandbox
if(i == 1)
{
Renderer2D.Draw(_texture, 2 * x, 2 * y, 1, 1, .(r.Next(0, 256), r.Next(0, 256), r.Next(0, 256)));
Renderer2D.Draw(_texture, 2 * x, 2 * y, 1, 1, .(r.Next(0, 256), r.Next(0, 256), r.Next(0, 256)), 10);
}
else if(i == 2)
{
Renderer2D.Draw(_ge_logo, 2 * x, 2 * y, 1, 1, .(r.Next(0, 256), r.Next(0, 256), r.Next(0, 256)));
Renderer2D.Draw(_ge_logo, 2 * x, 2 * y, 1, 1, .(r.Next(0, 256), r.Next(0, 256), r.Next(0, 256)), 10);
}
}