.

notes/MakingAnActualThing.txt

@@ -0,0 +1,26 @@
+Content-Type: text/x-zim-wiki
+Wiki-Format: zim 0.4
+Creation-Date: 2020-08-06T21:51:48-07:00
+
+====== MakingAnActualThing ======
+Created Thursday 06 August 2020
+
+So, I need to figure out how to determine which objects will :
+	* Be rendered
+	* Be notified
+	* Get batched
+	* And initialized
+
+The best candidate that I have right now is some sort of "scene" setup. Maybe something like
+
+pub struct Scene {
+	
+	drawables_bucket 
+	notifiable_bucket
+}
+
+impl Scene {
+	pub fn init() -> Scene {}
+	pub fn get_drawable() -> Maybe iterator of drawables?
+	pub fn get_notifiable() -
+}

src/main.rs

@@ -48,7 +48,79 @@ pub mod canvas;
 pub mod compute;
 
 
+extern crate specs;
+
+use specs::prelude::*;
+
+// A component contains data which is
+// associated with an entity.
+
+struct Vel(f32);
+
+impl Component for Vel {
+    type Storage = VecStorage<Self>;
+}
+
+struct Pos(f32);
+
+impl Component for Pos {
+    type Storage = VecStorage<Self>;
+}
+
+struct SysA;
+
+impl<'a> System<'a> for SysA {
+    // These are the resources required for execution.
+    // You can also define a struct and `#[derive(SystemData)]`,
+    // see the `full` example.
+    type SystemData = (WriteStorage<'a, Pos>, ReadStorage<'a, Vel>);
+
+    fn run(&mut self, (mut pos, vel): Self::SystemData) {
+        // The `.join()` combines multiple components,
+        // so we only access those entities which have
+        // both of them.
+
+        // This joins the component storages for Position
+        // and Velocity together; it's also possible to do this
+        // in parallel using rayon's `ParallelIterator`s.
+        // See `ParJoin` for more.
+        for (pos, vel) in (&mut pos, &vel).join() {
+            pos.0 += vel.0;
+        }
+    }
+}
+
+
 pub fn main() {
+
+
+
+    // The `World` is our
+    // container for components
+    // and other resources.
+
+    let mut world = World::new();
+    world.register::<Pos>();
+    world.register::<Vel>();
+
+    world.reg
+
+    // An entity may or may not contain some component.
+    world.create_entity().with(Vel(2.0)).with(Pos(0.0)).build();
+    world.create_entity().with(Vel(4.0)).with(Pos(1.6)).build();
+    world.create_entity().with(Vel(1.5)).with(Pos(5.4)).build();
+
+    world.create_entity().with(Pos(2.0)).build();
+
+    let mut dispatcher = DispatcherBuilder::new()
+        .with(SysA, "sys_a", &[]).build();
+
+    // This dispatches all the systems in parallel (but blocking).
+    dispatcher.dispatch(&mut world);
+
+
+
+
     hprof::start_frame();
 
     let q1 = hprof::enter("setup");
@@ -174,6 +246,14 @@ pub fn main() {
     let mut canvas_frame = CanvasFrame::new(window_size);
     let mut compu_frame = CompuFrame::new(window_size);
 
+
+
+    // What would the component for a sprite be...
+    // Drawable with the vertex format in one rendering system
+    // position + velocity could then be two more in one system
+    // maybe some sort of input system
+
+    //
     let mut big_container = vec![
         Box::new(Slider::new((0.1, 0.1), (0.9, 0.9), 5000)),
         Box::new(Sprite::new((0.0, -0.5), (0.5, 0.5), 1, sfml_handle.clone())),
@@ -323,8 +403,5 @@ pub fn click_test(event_loop_proxy: EventLoopProxy<TrEvent>, canvas_state: &Canv
 
 
 
-
-
-