semi working

src/extensions/mod.rs

@@ -0,0 +1,11 @@
+pub mod tick;
+pub mod velocity;
+
+use std::sync::Arc;
+
+use crate::widget::Widget;
+
+pub trait Extension {
+    fn init(&self, _widgets: &Vec<Arc<Widget>>) {}
+    fn render(&self, _widget: &Arc<Widget>) {}
+}

src/extensions/tick.rs

@@ -0,0 +1,24 @@
+use std::sync::Arc;
+
+use crate::{component, extensions::Extension, widget::Widget};
+
+pub struct TickExtension(pub usize);
+
+impl Extension for TickExtension {
+    fn init(&self, widgets: &Vec<Arc<Widget>>) {
+        let rate_dur = 1000 / self.0 as u64;
+        std::thread::spawn({
+            let widgets = widgets.clone();
+            move || loop {
+                for w in &widgets {
+                    if let Some(on_tick) = w.get::<OnTick>() {
+                        (on_tick.0)(&w)
+                    }
+                }
+                std::thread::sleep(std::time::Duration::from_millis(rate_dur));
+            }
+        });
+    }
+}
+
+component!(OnTick(pub fn(&Arc<Widget>)));

src/extensions/velocity.rs

@@ -0,0 +1,66 @@
+use std::sync::Arc;
+
+use crate::{
+    component,
+    extensions::Extension,
+    style::{Position, Transform},
+    widget::Widget,
+};
+
+pub struct VelocityExtension;
+
+impl VelocityExtension {
+    fn apply_velocity(ticks: usize, velocity: i32, x: &mut usize) {
+        if velocity.abs() != 0 && ticks as i32 % (1000 / velocity.abs()) == 0 {
+            if velocity > 0 {
+                *x += 1;
+            } else if velocity < 0 {
+                *x -= 1;
+            }
+        }
+    }
+}
+
+impl VelocityExtension {
+    fn apply_velocity_xy(ticks: usize, widget: &Arc<Widget>) {
+        if let Some(velocity) = widget.get::<Velocity>() {
+            if let Some(mut t) = widget.get::<Transform>() {
+                match &mut t.x {
+                    Position::Const(x) => Self::apply_velocity(ticks, velocity.0, x),
+                    _ => {}
+                }
+
+                match &mut t.y {
+                    Position::Const(y) => Self::apply_velocity(ticks, velocity.1, y),
+                    _ => {}
+                }
+
+                widget.set_component(t);
+            }
+        }
+    }
+}
+
+impl Extension for VelocityExtension {
+    fn init(&self, widgets: &Vec<Arc<Widget>>) {
+        std::thread::spawn({
+            let widgets = widgets.clone();
+            move || {
+                let mut tick = 0;
+                loop {
+                    for widget in &widgets {
+                        Self::apply_velocity_xy(tick, widget);
+                    }
+                    if tick > 1000 {
+                        tick = 0;
+                    } else {
+                        tick += 1;
+                    }
+                    std::thread::sleep(std::time::Duration::from_millis(1));
+                }
+            }
+        });
+    }
+}
+
+component!(Velocity(pub i32, pub i32));