remove platform specific uses

.gitignore

@@ -1 +1,3 @@
 /target
+Cargo.lock
+.idea/*

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

conf/entity_spawns.toml

@@ -9,16 +9,48 @@ type = "PhysicsEntity"
 mesh = "ball.obj"
 
     [entities.position]
-    x = 0.0
-    y = 0.0
-    z = 0.0
+    x = 15.0
+    y = 15.0
+    z = 15.0
+
+        [entities.position.rotation]
+        x = 0.0
+        y = 0.0
+        z = 0.0
+
+    [entities.physics]
+    body_status = "static"
+
+        [entities.physics.cuboid]
+        x = 1.0
+        y = 1.0
+        z = 1.0
 
 [[entities]]
 name = "camera.1"
 type = "Camera"
 
+    [entities.position]
+    x = 15.0
+    y = 15.0
+    z = 15.0
 
 [[entities]]
 name = "light.1"
 type = "Light"
-mesh = "light.obj"
+mesh = "light.obj"
+
+    [entities.position]
+    x = 25.0
+    y = 75.0
+    z = 20.0
+
+[[entities]]
+name = "light.2"
+type = "Light"
+mesh = "light.obj"
+
+    [entities.position]
+    x = 50.0
+    y = 75.0
+    z = 20.0

resources/ball.mtl

@@ -2,8 +2,8 @@
 # Material Count: 1
 
 newmtl None
-Ns 0
-Ka 0.000000 0.000000 0.000000
+Ns 500
+Ka 0.8 0.8 0.8
 Kd 0.8 0.8 0.8
 Ks 0.8 0.8 0.8
 d 1

resources/textured-cube.mtl

@@ -0,0 +1,12 @@
+# Blender MTL File: 'None'
+# Material Count: 1
+
+newmtl Material
+Ns 323.999994
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2

resources/textured-cube.obj

@@ -0,0 +1,46 @@
+# Blender v2.91.2 OBJ File: ''
+# www.blender.org
+mtllib textured-cube.mtl
+o Cube
+v 1.000000 1.000000 -1.000000
+v 1.000000 -1.000000 -1.000000
+v 1.000000 1.000000 1.000000
+v 1.000000 -1.000000 1.000000
+v -1.000000 1.000000 -1.000000
+v -1.000000 -1.000000 -1.000000
+v -1.000000 1.000000 1.000000
+v -1.000000 -1.000000 1.000000
+vt 0.875000 0.500000
+vt 0.625000 0.750000
+vt 0.625000 0.500000
+vt 0.375000 1.000000
+vt 0.375000 0.750000
+vt 0.625000 0.000000
+vt 0.375000 0.250000
+vt 0.375000 0.000000
+vt 0.375000 0.500000
+vt 0.125000 0.750000
+vt 0.125000 0.500000
+vt 0.625000 0.250000
+vt 0.875000 0.750000
+vt 0.625000 1.000000
+vn 0.0000 1.0000 0.0000
+vn 0.0000 0.0000 1.0000
+vn -1.0000 0.0000 0.0000
+vn 0.0000 -1.0000 0.0000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 0.0000 -1.0000
+usemtl Material
+s off
+f 5/1/1 3/2/1 1/3/1
+f 3/2/2 8/4/2 4/5/2
+f 7/6/3 6/7/3 8/8/3
+f 2/9/4 8/10/4 6/11/4
+f 1/3/5 4/5/5 2/9/5
+f 5/12/6 2/9/6 6/7/6
+f 5/1/1 7/13/1 3/2/1
+f 3/2/2 7/14/2 8/4/2
+f 7/6/3 5/12/3 6/7/3
+f 2/9/4 4/5/4 8/10/4
+f 1/3/5 3/2/5 4/5/5
+f 5/12/6 1/3/6 2/9/6

resources/tilted-terrain.mtl

@@ -0,0 +1,10 @@
+# Blender MTL File: 'None'
+# Material Count: 1
+
+newmtl None
+Ns 500
+Ka 0.8 0.8 0.8
+Kd 0.8 0.8 0.8
+Ks 0.8 0.8 0.8
+d 1
+illum 2

src/camera.rs

@@ -5,7 +5,8 @@ use cgmath::{Decomposed, InnerSpace, Matrix4, Point3, Rad, Vector3};
 use winit_24::dpi::{LogicalPosition, PhysicalPosition};
 use winit_24::event::{ElementState, MouseScrollDelta, VirtualKeyCode};
 use crate::render::OPENGL_TO_WGPU_MATRIX;
-
+use imgui::Condition;
+use imgui::*;
 
 #[derive(Clone, Copy, Debug, PartialEq)]
 pub struct Camera {
@@ -150,6 +151,7 @@ impl CameraController {
     }
 
     pub fn update_camera(&mut self, camera: &mut Camera, dt: f32) {
+
         // Move forward/backward and left/right
         let view_vector = Vector3::new(
             (1.0 * camera.pitch.0.sin() * camera.yaw.0.sin()),

src/components.rs

@@ -1,16 +1,20 @@
-use wgpu::{TextureView, Buffer, BindGroup};
 use std::sync::Arc;
-use rapier3d::dynamics::{RigidBody, RigidBodyHandle};
-use rapier3d::geometry::ColliderHandle;
-use rapier3d::geometry::Collider as r3dCollider;
 use std::time::{Duration, Instant};
-use cgmath::Deg;
+
+use cgmath::{Deg, Euler};
+use rapier3d::dynamics::{RigidBody, RigidBodyHandle};
+use rapier3d::geometry::Collider as r3dCollider;
+use rapier3d::geometry::ColliderHandle;
+use wgpu::{BindGroup, Buffer, TextureView};
+
+use crate::runtime::state::{TomlPositionDescription, TomlRotationDescription};
+use imgui::Ui;
 
 // a component is any type that is 'static, sized, send and sync
 
-
-pub struct ImguiWindow<'a> {
-    pub window: imgui::Window<'a>,
+pub struct ImguiWindow<'a, T> {
+    pub window: fn() -> imgui::Window<'a>,
+    pub func: fn(&Ui, Vec<&T>),
 }
 
 #[derive(Clone, Copy, Debug, PartialEq)]
@@ -28,6 +32,62 @@ pub struct Position {
     pub rot: cgmath::Euler<Deg<f32>>,
 }
 
+impl Default for Position {
+    fn default() -> Self {
+        Position {
+            x: 0.0,
+            y: 0.0,
+            z: 0.0,
+            rot: Euler {
+                x: Deg(0.0),
+                y: Deg(0.0),
+                z: Deg(0.0),
+            },
+        }
+    }
+}
+
+impl From<TomlPositionDescription> for Position {
+    fn from(pos: TomlPositionDescription) -> Self {
+        let euler = match pos.rot {
+            None => Euler {
+                x: Deg(0.0),
+                y: Deg(0.0),
+                z: Deg(0.0),
+            },
+            Some(v) => Euler {
+                x: Deg(v.x),
+                y: Deg(v.y),
+                z: Deg(v.z),
+            },
+        };
+        Position {
+            x: pos.x,
+            y: pos.y,
+            z: pos.z,
+            rot: euler,
+        }
+    }
+}
+
+impl From<Option<TomlPositionDescription>> for Position {
+    fn from(pos: Option<TomlPositionDescription>) -> Self {
+        match pos {
+            None => Position {
+                x: 0.0,
+                y: 0.0,
+                z: 0.0,
+                rot: Euler {
+                    x: Deg(0.0),
+                    y: Deg(0.0),
+                    z: Deg(0.0),
+                },
+            },
+            Some(v) => Position::from(v),
+        }
+    }
+}
+
 #[derive(Clone, Default, PartialEq, Eq, Hash, Copy, Debug)]
 pub struct RangeCopy<Idx> {
     pub start: Idx,
@@ -55,4 +115,4 @@ pub struct Physics {
 pub struct Collider {
     pub collider: r3dCollider,
     pub collider_handle: Option<ColliderHandle>,
-}
+}

src/light.rs

@@ -25,15 +25,15 @@ pub struct DirectionalLight {
     pub fov: f32,
     pub depth: RangeCopy<f32>,
     pub target_view: Arc<TextureView>,
-    pub pos: Position,
 }
 
 impl DirectionalLight {
-    pub fn to_raw(&self) -> LightRaw {
+    pub fn to_raw(&self, pos: &Position) -> LightRaw {
         use cgmath::{Deg, EuclideanSpace, Matrix4, PerspectiveFov, Point3, Vector3};
 
-        let point3d = Point3::new(self.pos.x, self.pos.y, self.pos.z);
-        let mx_view = Matrix4::look_at(point3d, Point3::origin(), Vector3::unit_y());
+        let point3d = Point3::new(pos.x, pos.y, pos.z);
+        let point3d_2 = Point3::new(pos.x, pos.y - 1.0, pos.z);
+        let mx_view = Matrix4::look_at(point3d, point3d_2, Vector3::unit_z());
 
         let projection = PerspectiveFov {
             fovy: Deg(self.fov).into(),
@@ -46,7 +46,7 @@ impl DirectionalLight {
             mx_correction * cgmath::Matrix4::from(projection.to_perspective()) * mx_view;
         LightRaw {
             proj: *mx_view_proj.as_ref(),
-            pos: [self.pos.x, self.pos.y, self.pos.z, 1.0],
+            pos: [pos.x, pos.y, pos.z, 1.0],
             color: [
                 self.color.r as f32,
                 self.color.g as f32,

src/main.rs

@@ -1,16 +1,17 @@
+extern crate env_logger;
 extern crate imgui;
 extern crate imgui_wgpu;
 #[macro_use]
 extern crate lazy_static;
-extern crate tobj;
-extern crate winit_24;
-extern crate env_logger;
-extern crate toml;
 #[macro_use]
 extern crate serde_derive;
+extern crate tobj;
+extern crate toml;
+extern crate winit_24;
 
-
+use std::collections::HashMap;
 use std::f32::consts::PI;
+use std::fs;
 use std::sync::{Arc, Mutex};
 #[cfg(not(target_arch = "wasm32"))]
 use std::time::{Duration, Instant};
@@ -20,6 +21,7 @@ use cgmath::{
 };
 use futures::executor::block_on;
 use futures::task::LocalSpawn;
+use futures::FutureExt;
 use gilrs::Event as GilEvent;
 use gilrs::{Gamepad, Gilrs};
 use imgui::FontSource;
@@ -28,6 +30,7 @@ use imgui::*;
 use imgui_wgpu::{Renderer as ImguiRenderer, RendererConfig as ImguiRendererConfig};
 use legion::systems::{SyncResources, UnsafeResources};
 use legion::*;
+use log::LevelFilter;
 use rapier3d::counters::Timer;
 use rapier3d::dynamics::{
     IntegrationParameters, JointSet, RigidBody, RigidBodyBuilder, RigidBodyHandle, RigidBodySet,
@@ -40,7 +43,8 @@ use rapier3d::pipeline::PhysicsPipeline;
 use wgpu::{BindGroup, Buffer, TextureView};
 use wgpu_subscriber;
 use winit_24::event::DeviceEvent::MouseMotion;
-use winit_24::platform::unix::x11::ffi::Time;
+use winit_24::event::{ElementState, VirtualKeyCode};
+use winit_24::event_loop::EventLoopProxy;
 use winit_24::window::Window;
 use winit_24::{
     event::{self, WindowEvent},
@@ -54,13 +58,9 @@ use crate::imgui_supp::extended_winit_imgui_support;
 use crate::imgui_supp::imgui_support::{ImguiContext, ImguiPlatform};
 use crate::owned_event::{OwnedEvent, OwnedEventExtension};
 use crate::physics::state::PhysicsState;
-use std::fs;
-use winit_24::event::{VirtualKeyCode, ElementState};
-use std::collections::HashMap;
-use futures::FutureExt;
-use log::LevelFilter;
+use crate::render::system::ImguiPerformanceProfilerLine;
 use crate::runtime::state::RuntimeState;
-use winit_24::event_loop::EventLoopProxy;
+use winit_24::dpi::PhysicalSize;
 
 mod camera;
 mod components;
@@ -92,33 +92,38 @@ https://github.com/amethyst/legion
 
 ECS
     animation
+    config / save loading (sorta!)
     render 3d (good!)
     input/io (yep!)
     collision / physics (yep!)
     entities & behaviours (got the entities!)
     scripting!
 
+
+Todo:
+    Load scene imgui interface w/ toml files
+    FPS graph port from voxel raycaster
+    better imgui interface with components & systems
+    Figure out eventing, GameInput, passing all events, etc.
+    + texturing
+
+
  */
 
 //log::info!("");
 
-// ImGUI works on more or less a global state. which is MegaLame
+// ImGUI works on more or less an unsafe global state. which is MegaLame
 static mut CURRENT_UI: Option<imgui::Ui<'static>> = None;
 pub unsafe fn current_ui<'a>() -> Option<&'a imgui::Ui<'a>> {
     CURRENT_UI.as_ref()
 }
 
+
+
 fn main() {
-
-    let logger = env_logger::builder().filter(Some("minimal_viable_game_engine"), LevelFilter::Info).init();
-
-
-
-
-    // for i in settings.get("entities") {
-    //
-    // }
-
+    let logger = env_logger::builder()
+        .filter(Some("minimal_viable_game_engine"), LevelFilter::Info)
+        .init();
 
     let mut world = World::default();
 
@@ -129,10 +134,13 @@ fn main() {
     let mut load_schedule = Schedule::builder()
         .add_system(runtime::system::runtime_load_system())
         .add_system(runtime::system::runtime_spawn_system())
+        .flush()
         .build();
 
     let mut render_schedule = Schedule::builder()
+        .add_system(render::system::render_imgui_system())
         .add_system(render::system::render_test_system())
+        .add_system(render::system::render_performance_flag_system())
         .build();
 
     let mut update_schedule = Schedule::builder()
@@ -149,11 +157,14 @@ fn main() {
     let event_loop = EventLoop::<OwnedEventExtension>::with_user_event();
     let mut builder = winit_24::window::WindowBuilder::new();
     builder = builder.with_title("MVGE");
+    builder = builder.with_inner_size(PhysicalSize::new(1200,900));
 
     let window = builder.build(&event_loop).unwrap();
 
     let mut resources = Resources::default();
 
+
+
     // Load up all the resources
     {
         let mut imgui_context = imgui::Context::create();
@@ -194,7 +205,7 @@ fn main() {
 
         // Physics
         let (physics_state, physics_pipeline) =
-            PhysicsState::build(rapier3d::math::Vector::new(0.0, -9.81, 0.05));
+            PhysicsState::build(rapier3d::math::Vector::new(0.0, -9.81, 0.0));
         resources.insert(physics_state);
         resources.insert(physics_pipeline);
 
@@ -240,21 +251,26 @@ fn main() {
             //      conditionally, and run the fps locked renderer
             event::Event::MainEventsCleared => {
                 event_schedule.execute(&mut world, &mut resources);
-                imgui_prepare_schedule.execute(&mut world, &mut resources);
                 resources
                     .get_mut::<Vec<OwnedEvent<OwnedEventExtension>>>()
                     .unwrap()
                     .clear();
 
+                imgui_prepare_schedule.execute(&mut world, &mut resources);
+
                 let (step_size, elapsed_time) = {
-                    // deltatime since last frame
-                    let loop_state = resources.get::<LoopState>().unwrap();
+                    let mut loop_state = resources.get_mut::<LoopState>().unwrap();
                     (
                         loop_state.step_size,
                         loop_state.start_time.elapsed().as_secs_f32(),
                     )
                 };
                 delta_time = elapsed_time - current_time;
+
+                {
+                    let mut loop_state = resources.get_mut::<LoopState>().unwrap();
+                    loop_state.delta_time = Duration::from_secs_f32(delta_time);
+                }
                 current_time = elapsed_time;
                 if delta_time > 0.02 {
                     delta_time = 0.02;
@@ -263,10 +279,10 @@ fn main() {
 
                 while accumulator_time - step_size >= step_size {
                     accumulator_time -= step_size;
+
                     // ==== DELTA TIME LOCKED ====
                     update_schedule.execute(&mut world, &mut resources);
                 }
-
                 // ==== FPS LOCKED ====
                 render_schedule.execute(&mut world, &mut resources);
             }
@@ -287,15 +303,17 @@ fn main() {
                 event: winit_24::event::DeviceEvent::Key(keyboard_input),
                 ..
             } => {
-                match keyboard_input.virtual_keycode.unwrap() {
-                    VirtualKeyCode::Escape => {
-                        if keyboard_input.state == ElementState::Pressed {
-                            *control_flow = ControlFlow::Exit;
-                        } else {
-                            //d
+                if keyboard_input.virtual_keycode.is_some() {
+                    match keyboard_input.virtual_keycode.unwrap() {
+                        VirtualKeyCode::Escape => {
+                            if keyboard_input.state == ElementState::Pressed {
+                                *control_flow = ControlFlow::Exit;
+                            } else {
+                                //d
+                            }
                         }
+                        _ => (),
                     }
-                    _ => ()
                 }
             }
             event::Event::WindowEvent {
@@ -318,7 +336,6 @@ fn main() {
 }
 
 pub fn setup_gamepad(event_loop: &EventLoop<OwnedEventExtension>) {
-
     let event_loop_proxy = event_loop.create_proxy();
 
     std::thread::spawn(move || {
@@ -360,4 +377,3 @@ pub fn setup_gamepad(event_loop: &EventLoop<OwnedEventExtension>) {
         }
     });
 }
-

src/physics/system.rs

@@ -10,9 +10,11 @@ use rapier3d::geometry::{BroadPhase, ColliderSet, NarrowPhase};
 use rapier3d::pipeline::{PhysicsPipeline, ChannelEventCollector};
 
 use crate::camera::{Camera, CameraController};
-use crate::components::{Collider, LoopState, Mesh, Physics, Position};
-use imgui::FontSource;
+use crate::components::{Collider, LoopState, Mesh, Physics, Position, ImguiWindow};
+use imgui::{FontSource, Condition};
+use imgui::*;
 use crate::physics::state::PhysicsState;
+use crate::render::system::ImguiGenericOutputLine;
 
 
 #[system]
@@ -73,14 +75,22 @@ pub fn run_physics(
     }
 }
 
+
 #[system]
 #[write_component(Camera)]
 #[write_component(CameraController)]
+#[write_component(ImguiGenericOutputLine)]
 pub fn update_camera(world: &mut SubWorld, #[resource] loop_state: &mut LoopState) {
+
     let mut query = <(&mut Camera, &mut CameraController)>::query();
     for (mut camera, controller) in query.iter_mut(world) {
         controller.update_camera(&mut camera, loop_state.step_size)
     }
+    let mut query = <(&mut Camera, &mut CameraController, &mut ImguiGenericOutputLine)>::query();
+    for (mut camera, controller, ui_entry) in query.iter_mut(world) {
+        ui_entry.label = format!("Camera: {:.2}, {:.2}, {:.2}", camera.position.x, camera.position.y, camera.position.z);
+    }
+
 }
 
 #[system]
@@ -93,6 +103,7 @@ pub fn update_models(
     #[resource] physics_state: &mut PhysicsState,
     #[resource] physics_pipeline: &mut PhysicsPipeline,
 ) {
+
     // Make sure all the entities we care about are added to the system
     let mut query = <(&mut Collider, &mut Physics, &mut Mesh, &mut Position)>::query();
     for (collider, physics, mesh, position) in query.iter_mut(world) {

src/render/state.rs

@@ -20,7 +20,6 @@ use rapier3d::parry::motion::RigidMotionComposition;
 use wgpu::util::DeviceExt;
 use wgpu::{BackendBit, BindGroup, BindGroupLayout, Buffer, BufferBindingType, Device, FragmentState, Instance, Queue, Surface, SwapChain, SwapChainDescriptor, SwapChainFrame, TextureView, VertexState, CommandEncoder};
 use winit_24::dpi::PhysicalSize;
-use winit_24::platform::unix::x11::ffi::Time;
 use winit_24::window::Window;
 
 use crate::camera::{Camera, CameraController};
@@ -74,8 +73,8 @@ impl RenderState {
     const MAX_LIGHTS: usize = 10;
     const SHADOW_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Depth32Float;
     const SHADOW_SIZE: wgpu::Extent3d = wgpu::Extent3d {
-        width: 512,
-        height: 512,
+        width: 1024,
+        height: 1024,
         depth: Self::MAX_LIGHTS as u32,
     };
     const DEPTH_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Depth32Float;
@@ -196,22 +195,12 @@ impl RenderState {
                 b: 0.5,
                 a: 1.0,
             },
-            fov: 45.0,
+            fov: 90.0,
             depth: RangeCopy {
                 start: 1.0,
-                end: 20.0,
+                end: 200.0,
             },
             target_view: target.clone(),
-            pos: Position {
-                x: 0.0,
-                y: 0.0,
-                z: 0.0,
-                rot: Euler {
-                    x: Deg(0.0),
-                    y: Deg(-25.0),
-                    z: Deg(0.0),
-                },
-            },
         }
     }
 

src/render/system.rs

@@ -1,4 +1,6 @@
 use std::cell::RefCell;
+use std::iter::Chain;
+use std::slice::Iter;
 use std::sync::{Arc, Mutex};
 use std::thread::current;
 use std::time::Duration;
@@ -18,20 +20,24 @@ use legion::world::SubWorld;
 use legion::*;
 use rapier3d::parry::motion::RigidMotionComposition;
 use wgpu::util::DeviceExt;
-use wgpu::{BackendBit, BindGroup, BindGroupLayout, Buffer, BufferBindingType, Device, FragmentState, Instance, Queue, Surface, SwapChain, SwapChainDescriptor, SwapChainFrame, TextureView, VertexState, CommandEncoder};
+use wgpu::{
+    BackendBit, BindGroup, BindGroupLayout, Buffer, BufferBindingType, CommandEncoder, Device,
+    FragmentState, Instance, Queue, Surface, SwapChain, SwapChainDescriptor, SwapChainFrame,
+    TextureView, VertexState,
+};
 use winit_24::dpi::PhysicalSize;
-use winit_24::platform::unix::x11::ffi::Time;
 use winit_24::window::Window;
 
 use crate::camera::{Camera, CameraController};
-use crate::components::{Mesh, Position, RangeCopy};
+use crate::components::{ImguiWindow, LoopState, Mesh, Position, RangeCopy};
 use crate::current_ui;
 use crate::geometry::{load_obj, Vertex};
 use crate::imgui_supp::imgui_support::{ImguiContext, ImguiPlatform};
 use crate::light::{DirectionalLight, LightRaw};
-use crate::render::state::{RenderState};
-use crate::render::{push_debug_group_checked, insert_debug_marker_checked, pop_debug_group_checked, EntityUniforms};
-
+use crate::render::state::RenderState;
+use crate::render::{
+    insert_debug_marker_checked, pop_debug_group_checked, push_debug_group_checked, EntityUniforms,
+};
 
 #[system]
 #[write_component(Camera)]
@@ -53,14 +59,128 @@ pub fn imgui_prepare(
     unsafe { crate::CURRENT_UI = Some(std::mem::transmute(imgui_context.frame())) }
 }
 
+fn run_imgui_render_step<G: 'static + Sized + Send + Sync>(world: &mut SubWorld, ui: &Ui) {
+    let mut component_query = <(&G)>::query();
+    let mut window_query = <(&ImguiWindow<G>)>::query();
+
+    let mut window_data = None;
+    let mut window_func = None;
+    for (window) in window_query.iter(world) {
+        window_data = Some((window.window)());
+        window_func = Some(window.func);
+    }
+
+    if window_data.is_some() {
+        let mut v = Vec::new();
+        for (component_state) in component_query.iter(world) {
+            v.push(component_state)
+        }
+        window_data
+            .unwrap()
+            .build(&ui, || (window_func.unwrap())(ui, v));
+    }
+}
+/// Go through each "global" window-data component and render it's data
+#[system]
+#[write_component(ImguiWindow<ImguiPerformanceProfilerLine>)]
+#[write_component(ImguiPerformanceProfilerLine)]
+#[write_component(ImguiWindow<ImguiGenericOutputLine>)]
+#[write_component(ImguiGenericOutputLine)]
+pub fn render_imgui(world: &mut SubWorld, #[resource] loop_state: &mut LoopState) {
+    let ui = unsafe { crate::current_ui().unwrap() };
+
+    // Pull out the window associated with this type, and render each of the components in the sytem
+    run_imgui_render_step::<ImguiGenericOutputLine>(world, &ui);
+    run_imgui_render_step::<ImguiPerformanceProfilerLine>(world, &ui);
+}
+
+// This would be the shared state for all imgui generic output things
+pub struct ImguiGenericOutputLine {
+    pub label: String,
+}
+
+impl ImguiGenericOutputLine {
+    pub fn new(label: String) -> ImguiGenericOutputLine {
+        ImguiGenericOutputLine { label }
+    }
+}
+
+// This would be the shared state for all imgui performance window things
+pub struct ImguiPerformanceProfilerLine {
+    pub label: String,
+    list_of_fps: [f32; 400],
+    index: usize,
+    scale_min: f32,
+    pub scale_max: f32,
+}
+
+impl ImguiPerformanceProfilerLine {
+    fn add_sample(&mut self, sample: f32) {
+        self.list_of_fps[self.index] = sample;
+
+        if self.index >= 399 {
+            self.scale_max = self.list_of_fps.iter().cloned().fold(0. / 0., f32::max);
+            self.index = 0;
+        } else {
+            self.index += 1;
+        }
+
+        if self.scale_max < sample {
+            self.scale_max = sample;
+        }
+    }
+
+    pub fn iter_data_from_head(&self) -> Chain<Iter<f32>, Iter<f32>> {
+        let (left, right) = self.list_of_fps.split_at(self.index);
+        right.iter().chain(left.iter())
+    }
+
+    pub fn current_average_label(&self) -> (f32, String) {
+        let (left, right) = self.list_of_fps.split_at(self.index);
+        (
+            (left
+                .iter()
+                .rev()
+                .chain(right.iter().rev())
+                .take(50)
+                .sum::<f32>()
+                / 50.0),
+            "FPS".to_string(),
+        )
+    }
+
+    pub fn new(label: String) -> ImguiPerformanceProfilerLine {
+        ImguiPerformanceProfilerLine {
+            label,
+            list_of_fps: [0.0; 400],
+            index: 0,
+            scale_min: 0.0,
+            scale_max: 0.0,
+        }
+    }
+}
+
+#[system]
+#[write_component(ImguiPerformanceProfilerLine)]
+pub fn render_performance_flag(world: &mut SubWorld, #[resource] loop_state: &mut LoopState) {
+    let delta_time = loop_state.delta_time.as_secs_f32();
+
+    let mut query = <(&mut ImguiPerformanceProfilerLine)>::query();
+    for (mut profiler) in query.iter_mut(world) {
+        profiler.add_sample(delta_time);
+    }
+}
+
 #[system]
 #[write_component(Camera)]
 #[write_component(Position)]
+#[write_component(ImguiPerformanceProfilerLine)]
 #[write_component(Point3<f32>)]
 #[write_component(Mesh)]
 #[write_component(DirectionalLight)]
 pub fn render_test(
     world: &mut SubWorld,
+    #[resource] loop_state: &mut LoopState,
     #[resource] renderer: &mut RenderState,
     #[resource] winit_window: &mut Window,
     #[resource] imgui_context: &mut Arc<Mutex<ImguiContext>>,
@@ -72,7 +192,6 @@ pub fn render_test(
 
     push_debug_group_checked("start render function", &mut encoder);
 
-
     let frame = renderer.get_current_frame();
 
     // Update the camera uniform buffers, need to make it support selection of
@@ -117,23 +236,25 @@ pub fn render_test(
 
     if renderer.lights_are_dirty {
         renderer.lights_are_dirty = false;
-        let mut query = <(&mut DirectionalLight, &mut Point3<f32>)>::query();
+        let mut query = <(&mut DirectionalLight, &mut Position)>::query();
         for (i, (light, pos)) in query.iter_mut(world).enumerate() {
             renderer.queue.write_buffer(
                 &renderer.light_uniform_buf,
                 (i * mem::size_of::<LightRaw>()) as wgpu::BufferAddress,
-                bytemuck::bytes_of(&light.to_raw()),
+                bytemuck::bytes_of(&light.to_raw(&pos)),
             );
         }
     }
 
     push_debug_group_checked("shadow passes", &mut encoder);
 
-    let mut query = <(&mut DirectionalLight, &mut Point3<f32>)>::query();
+    let mut query = <(&mut DirectionalLight, &mut Position)>::query();
 
     for (i, (light, pos)) in query.iter_mut(world).enumerate() {
-        insert_debug_marker_checked(&format!("shadow pass {} (light at position {:?})", i, pos), &mut encoder);
-
+        insert_debug_marker_checked(
+            &format!("shadow pass {} (light at position {:?})", i, pos),
+            &mut encoder,
+        );
 
         // The light uniform buffer already has the projection,
         // let's just copy it over to the shadow uniform buffer.
@@ -147,7 +268,6 @@ pub fn render_test(
 
         insert_debug_marker_checked("render entities", &mut encoder);
 
-
         let mut pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
             label: Some("render pass"),
             color_attachments: &[],
@@ -221,17 +341,8 @@ pub fn render_test(
         let mut imgui_context = &mut imgui_context.lock().unwrap().context;
         let mut imgui_platform = &mut imgui_platform.lock().unwrap().platform;
 
-        //imgui_state.context.io_mut().update_delta_time(Duration::new(0,160));
         let ui = unsafe { crate::current_ui().unwrap() };
 
-        let window = imgui::Window::new(im_str!("Hello too"));
-        window
-            .size([400.0, 100.0], Condition::FirstUseEver)
-            .position([50.0, 50.0], Condition::FirstUseEver)
-            .build(&ui, || {
-                ui.text(im_str!("Frametime: {:?}", 10.0));
-            });
-
         // ui.show_demo_window(&mut true);
         imgui_platform.prepare_render(&ui, &winit_window);
 

src/runtime/state.rs

@@ -17,11 +17,55 @@ use crate::components::{Collider, LoopState, Mesh, Physics, Position};
 use crate::geometry::{load_obj, RawMesh};
 use std::io::Read;
 
-pub struct EntityMeta {
+
+
+#[derive(Deserialize, Clone)]
+pub struct TomlBallPhysicsBodyDescription {
+    pub radius: String
+}
+
+#[derive(Deserialize, Clone)]
+pub struct TomlCuboidPhysicsBodyDescription {
+    pub x: f32,
+    pub y: f32,
+    pub z: f32,
+}
+
+#[derive(Deserialize, Clone)]
+pub struct TomlPhysicsDescription {
+    pub body_status: String,
+    pub ball: Option<TomlBallPhysicsBodyDescription>,
+    pub cuboid: Option<TomlCuboidPhysicsBodyDescription>,
+}
+
+#[derive(Deserialize, Clone)]
+pub struct TomlRotationDescription {
+    pub x: f32,
+    pub y: f32,
+    pub z: f32,
+}
+
+#[derive(Deserialize, Clone)]
+pub struct TomlPositionDescription {
+    pub x: f32,
+    pub y: f32,
+    pub z: f32,
+    pub rot: Option<TomlRotationDescription>,
+}
+
+#[derive(Deserialize, Clone)]
+pub struct TomlEntityDescription {
     pub name: String,
-    pub ent_type: String,
+    #[serde(rename = "type")]
+    pub type_name: String,
     pub mesh: Option<String>,
-    pub position: Option<Position>
+    pub position: Option<TomlPositionDescription>,
+    pub physics: Option<TomlPhysicsDescription>,
+}
+
+#[derive(Deserialize, Clone)]
+pub struct TomlEntityContainer {
+    pub entities: Vec<TomlEntityDescription>,
 }
 
 pub struct RuntimeState {
@@ -29,38 +73,15 @@ pub struct RuntimeState {
     mesh_cache: HashMap<String, RawMesh>,
 }
 
-#[derive(Deserialize)]
-pub struct TomlPositionDescription {
-    pub x: f32,
-    pub y: f32,
-    pub z: f32,
-}
-
-#[derive(Deserialize)]
-pub struct TomlEntityDescription {
-    pub name: String,
-    #[serde(rename = "type")]
-    pub type_name: String,
-    pub mesh: Option<String>,
-    pub position: Option<TomlPositionDescription>,
-}
-
-#[derive(Deserialize)]
-pub struct TomlEntityContainer {
-    pub entities: Vec<TomlEntityDescription>,
-}
-
-
 impl RuntimeState {
     pub fn new() -> RuntimeState {
+        // TODO: Hook this file to the gui
         let mut file = fs::File::open("./conf/entity_spawns.toml").unwrap();
         let mut content = String::new();
         file.read_to_string(&mut content).unwrap();
+
+        // TODO: gracefully fail
         let mut settings : TomlEntityContainer = toml::from_str(content.as_str()).unwrap();
-        // settings
-        //     // File::with_name(..) is shorthand for File::from(Path::new(..))
-        //     .merge(File::with_name("conf/entity_spawns.toml"))
-        //     .unwrap();
 
         RuntimeState {
             config_db: settings,
@@ -72,40 +93,8 @@ impl RuntimeState {
         self.mesh_cache.get(mesh)
     }
 
-    pub fn get_configured_entities(&mut self) -> Vec<EntityMeta> {
-        let mut out = Vec::new();
-        for entity in &self.config_db.entities {
-
-            let position = match &entity.position {
-                None => { None }
-                Some(pos) => {
-
-                    Some(Position {
-                        x: pos.x,
-                        y: pos.y,
-                        z: pos.z,
-                        rot: Euler {
-                            x: Deg(0.0),
-                            y: Deg(0.0),
-                            z: Deg(0.0)
-                        }
-                    })
-                }
-            };
-
-            // log::info!("{:?}", position);
-            // log::info!("{:?}", entity);
-            // log::info!("{:?}", entity.into_table());
-            // log::info!("{:?}", entity.into_array());
-
-            out.push(EntityMeta {
-                name: entity.name.clone(),
-                ent_type: entity.type_name.clone(),
-                mesh: entity.mesh.clone(),
-                position: position
-            });
-        }
-        out
+    pub fn get_entities(&mut self) -> Vec<TomlEntityDescription> {
+        self.config_db.entities.clone()
     }
 
     pub fn preload_meshes(&mut self, resources_path: PathBuf) {

src/runtime/system.rs

@@ -1,33 +1,119 @@
+use std::f32::consts::PI;
 use std::path::PathBuf;
 use std::time::Instant;
 
-use cgmath::{Euler, Quaternion, Deg, Rad, Point3};
-use imgui::FontSource;
-use legion::*;
-use legion::IntoQuery;
+use cgmath::{Deg, Euler, Point3, Quaternion, Rad};
+use imgui::*;
+use imgui::{Condition, FontSource, Ui};
 use legion::systems::CommandBuffer;
 use legion::world::SubWorld;
+use legion::IntoQuery;
+use legion::*;
 use nalgebra::Quaternion as naQuaternion;
-use rapier3d::dynamics::{IntegrationParameters, JointSet, RigidBodyBuilder, RigidBodySet};
+use rapier3d::dynamics::{
+    IntegrationParameters, JointSet, MassProperties, RigidBodyBuilder, RigidBodySet,
+};
 use rapier3d::geometry::{BroadPhase, ColliderBuilder, ColliderSet, NarrowPhase};
 use rapier3d::na::{Isometry3, Vector, Vector3};
 use rapier3d::pipeline::{ChannelEventCollector, PhysicsPipeline};
 
 use crate::camera::{Camera, CameraController};
-use crate::components::{Collider, LoopState, Mesh, Physics, Position};
+use crate::components::{Collider, ImguiWindow, LoopState, Mesh, Physics, Position};
 use crate::geometry::RawMesh;
 use crate::physics::state::PhysicsState;
 use crate::render::state::RenderState;
+use crate::render::system::{ImguiGenericOutputLine, ImguiPerformanceProfilerLine};
 use crate::runtime::state::RuntimeState;
-use std::f32::consts::PI;
+
+pub fn quad_color(color: [f32; 4]) -> [[f32; 4]; 4] {
+    [color, color, color, color]
+}
 
 #[system]
 #[write_component(Mesh)]
 pub fn runtime_load(
+    cmd: &mut CommandBuffer,
     world: &mut SubWorld,
     #[resource] runtime_state: &mut RuntimeState,
 ) {
     runtime_state.preload_meshes(PathBuf::from("./resources"));
+
+    let entity: Entity = cmd.push((ImguiWindow {
+        // a window that does everything for the performance profiler
+        window: || {
+            imgui::Window::new(im_str!("Performance Profiler"))
+                .size([400.0, 200.0], Condition::FirstUseEver)
+                .position([10.0, 10.0], Condition::FirstUseEver)
+        },
+        func: |ui: &Ui, a: Vec<&ImguiPerformanceProfilerLine>| {
+            // ui.text(im_str!("Performance Graph"));
+
+            let draw_list = ui.get_window_draw_list();
+            let top_left = ui.cursor_screen_pos();
+            let region_size = ui.content_region_avail();
+
+            let region_size = [region_size[0] * 0.80, region_size[1]];
+
+            // Fill rect
+            let qcolor = quad_color([0.5, 0.5, 1.0, 0.1]);
+            draw_list.add_rect_filled_multicolor(
+                top_left,
+                [top_left[0] + (region_size[0]), top_left[1] + region_size[1]],
+                qcolor[0],
+                qcolor[1],
+                qcolor[2],
+                qcolor[3],
+            );
+
+            for profiler_line in a {
+                let x_scale = (region_size[0]) / 400.0;
+                let y_scale = region_size[1] / profiler_line.scale_max;
+                profiler_line
+                    .iter_data_from_head()
+                    .fold((0, 0.0f32), |accum, &fps_val| {
+                        let x1 = accum.0 as f32 * x_scale + top_left[0];
+                        let y1 = top_left[1] + region_size[1] - accum.1 * y_scale;
+                        let x2 = (accum.0 as f32 + 1.0) * x_scale + top_left[0];
+                        let y2 = top_left[1] + region_size[1] - fps_val * y_scale;
+                        let p1 = [x1, y1];
+                        let p2 = [x2, y2];
+                        draw_list
+                            .add_line(p1, p2, [1.0, 1.0, 0.0, 0.8])
+                            .thickness(1.0)
+                            .build();
+                        (accum.0 + 1, fps_val)
+                    });
+
+                let text_x = (region_size[0] + top_left[0]);
+                let text_y = top_left[1] + region_size[1]
+                    - profiler_line.current_average_label().0 * y_scale;
+                draw_list.add_text(
+                    [text_x, text_y],
+                    [1.0, 1.0, 0.0, 1.0],
+                    format!(
+                        "{} {:.0}",
+                        profiler_line.current_average_label().1,
+                        1.0 / profiler_line.current_average_label().0
+                    ),
+                );
+            }
+        },
+    },));
+    let entity: Entity = cmd.push((ImguiPerformanceProfilerLine::new("RenderFPS".to_string()),));
+
+    let entity: Entity = cmd.push((ImguiWindow {
+        // a window that does everything for the performance profiler
+        window: || {
+            imgui::Window::new(im_str!("Generic Output"))
+                .size([400.0, 500.0], Condition::FirstUseEver)
+                .position([50.0, 250.0], Condition::FirstUseEver)
+        },
+        func: |ui: &Ui, a: Vec<&ImguiGenericOutputLine>| {
+            for label in a {
+                ui.text(im_str!("{}", label.label));
+            }
+        },
+    },));
 }
 
 #[system]
@@ -38,54 +124,48 @@ pub fn runtime_spawn(
     #[resource] runtime_state: &mut RuntimeState,
     #[resource] renderer: &mut RenderState,
 ) {
-
-    for entity in runtime_state.get_configured_entities(){
-        match entity.ent_type.as_ref() {
+    for entity in &runtime_state.get_entities() {
+        match entity.type_name.as_ref() {
             "PhysicsEntity" => {
-                let mesh_name = entity.mesh.unwrap();
+                let mesh_name = entity.mesh.as_ref().unwrap();
                 let raw_mesh = match runtime_state.get_mesh(mesh_name.as_str()) {
                     None => {
                         log::warn!("Skipping entity with invalid mesh file {:?} ", mesh_name);
                         continue;
                     }
-                    Some(mesh) => mesh
+                    Some(mesh) => mesh,
                 };
 
+                let collider = ColliderBuilder::trimesh(
+                    raw_mesh.vertices.iter().map(|v| v.position()).collect(),
+                    raw_mesh.indices.clone(),
+                )
+                .build();
+
+                let collider = ColliderBuilder::capsule_y(2.0, 1.0).build();
+
+                let gpu_mesh_buffer = renderer
+                    .upload_mesh_to_buffer(
+                        raw_mesh,
+                        Some(wgpu::Color {
+                            r: 1.0,
+                            g: 0.7,
+                            b: 0.3,
+                            a: 1.0,
+                        }),
+                    )
+                    .unwrap();
+
+                let position = Position::from(entity.position.clone());
+
                 let mut dynamic_body = RigidBodyBuilder::new_dynamic()
                     .can_sleep(false)
-                    .mass(1.0)
-                    .translation(0.0, 0.0, 0.0)
+                    .mass(100.0)
+                    .translation(position.x, position.y, position.z)
                     .build();
 
-                let collider = ColliderBuilder::trimesh(
-                    raw_mesh.vertices
-                        .iter()
-                        .map(|v| v.position())
-                        .collect(),
-                    raw_mesh.indices.clone(),
-                ).build();
-
-                let gpu_mesh_buffer = renderer.upload_mesh_to_buffer(
-                    raw_mesh,
-                    Some(wgpu::Color {
-                        r: 1.0,
-                        g: 0.7,
-                        b: 0.3,
-                        a: 1.0,
-                    })
-                ).unwrap();
-
                 let entity: Entity = cmd.push((
-                    Position {
-                        x: 0.0,
-                        y: 20.0,
-                        z: 0.0,
-                        rot: Euler {
-                            x: Deg(25.0),
-                            y: Deg(45.0),
-                            z: Deg(15.0),
-                        },
-                    },
+                    position,
                     gpu_mesh_buffer,
                     Physics {
                         rigid_body: dynamic_body,
@@ -95,52 +175,48 @@ pub fn runtime_spawn(
                         collider: collider,
                         collider_handle: None,
                     },
+                    ImguiGenericOutputLine::new("wahoo! from a physics entity".to_string()),
                 ));
-            },
+            }
             "Terrain" => {
-                let mesh_name = entity.mesh.unwrap();
+                let mesh_name = entity.mesh.clone().unwrap();
                 let raw_mesh = match runtime_state.get_mesh(mesh_name.as_str()) {
                     None => {
                         log::warn!("Skipping entity with invalid mesh file {:?} ", mesh_name);
                         continue;
                     }
-                    Some(mesh) => mesh
+                    Some(mesh) => mesh,
                 };
 
+                let position = Position::from(entity.position.clone());
+
                 let mut static_body = RigidBodyBuilder::new_static()
-                    .position(Isometry3::new(Vector3::new(0.0, -8.0, 0.0), Vector::y()))
+                    .position(Isometry3::new(
+                        Vector3::new(position.x, position.y, position.z),
+                        Vector::y(),
+                    ))
                     .build();
 
                 let mesh_collider = ColliderBuilder::trimesh(
-                    raw_mesh.vertices
-                        .iter()
-                        .map(|v| v.position())
-                        .collect(),
+                    raw_mesh.vertices.iter().map(|v| v.position()).collect(),
                     raw_mesh.indices.clone(),
-                ).build();
-
-                let gpu_mesh_buffer = renderer.upload_mesh_to_buffer(
-                    raw_mesh,
-                    Some(wgpu::Color {
-                        r: 1.0,
-                        g: 0.7,
-                        b: 0.3,
-                        a: 1.0,
-                    })
-                ).unwrap();
+                )
+                .build();
 
+                let gpu_mesh_buffer = renderer
+                    .upload_mesh_to_buffer(
+                        raw_mesh,
+                        Some(wgpu::Color {
+                            r: 1.0,
+                            g: 0.7,
+                            b: 0.3,
+                            a: 1.0,
+                        }),
+                    )
+                    .unwrap();
 
                 let entity: Entity = cmd.push((
-                    Position {
-                        x: 0.0,
-                        y: -8.0,
-                        z: 0.0,
-                        rot: Euler {
-                            x: Deg(0.0),
-                            y: Deg(0.0),
-                            z: Deg(0.0),
-                        },
-                    },
+                    position,
                     gpu_mesh_buffer,
                     Physics {
                         rigid_body: static_body,
@@ -151,63 +227,52 @@ pub fn runtime_spawn(
                         collider_handle: None,
                     },
                 ));
-            },
+            }
             "Camera" => {
-
+                let position = Position::from(entity.position.clone());
                 let entity: Entity = cmd.push((
                     Camera {
                         position: cgmath::Point3 {
-                            x: 0.0,
-                            y: 0.0,
-                            z: 10.0,
+                            x: position.x,
+                            y: position.y,
+                            z: position.z,
                         },
-                        yaw: Rad(-PI),
-                        pitch: Rad(PI / 2.0),
+                        yaw: Rad(PI / 2.0),
+                        pitch: Rad(PI / 2.0 + 25.0),
                     },
-                    CameraController::new(3.0, 1.0),
+                    CameraController::new(5.0, 1.0),
+                    ImguiGenericOutputLine::new("wahoo! from a camera".to_string()),
                 ));
-            },
+            }
             "Light" => {
-                let mesh_name = entity.mesh.unwrap();
+                let mesh_name = entity.mesh.clone().unwrap();
                 let raw_mesh = match runtime_state.get_mesh(mesh_name.as_str()) {
                     None => {
                         log::warn!("Skipping entity with invalid mesh file {:?} ", mesh_name);
                         continue;
                     }
-                    Some(mesh) => mesh
+                    Some(mesh) => mesh,
                 };
 
-                let gpu_mesh_buffer = renderer.upload_mesh_to_buffer(
-                    raw_mesh,
-                    Some(wgpu::Color {
-                        r: 1.0,
-                        g: 0.7,
-                        b: 0.3,
-                        a: 1.0,
-                    })
-                ).unwrap();
+                let position = Position::from(entity.position.clone());
 
-                let light_entity: Entity = cmd.push((
-                    Position {
-                        x: 5.0,
-                        y: 10.0,
-                        z: 5.0,
-                        rot: Euler {
-                            x: Deg(0.0),
-                            y: Deg(-25.0),
-                            z: Deg(0.0),
-                        },
-                    },
-                    gpu_mesh_buffer,
-                    renderer.create_light(),
-                ));
+                let gpu_mesh_buffer = renderer
+                    .upload_mesh_to_buffer(
+                        raw_mesh,
+                        Some(wgpu::Color {
+                            r: 1.0,
+                            g: 0.7,
+                            b: 0.3,
+                            a: 1.0,
+                        }),
+                    )
+                    .unwrap();
+
+                let light_entity: Entity =
+                    cmd.push((position, gpu_mesh_buffer, renderer.create_light()));
             }
 
-
-            _ => {},
+            _ => {}
         }
-
-
     }
-
 }