Record mouse movement (#51)

* Record mouse movement

* Use get for last_point and first_point

* Use first and las for first_point and last_point

* Remove unnecessary comment

* Derive Default for Trace

Co-authored-by: RustyNixieTube <RustyNixieTube@users.noreply.github.com>

client/web/wasm/src/viewport.rs

@@ -16,22 +16,35 @@ pub fn select_tool(tool: String) -> Result<(), JsValue> {
 	})
 }
 
-static mut POS: (u32, u32) = (0, 0);
-
 /// Mouse movement with the bounds of the canvas
 #[wasm_bindgen]
 pub fn on_mouse_move(x: u32, y: u32) {
-	// SAFETY: This is safe because the code can only ever run in a single thread
-	unsafe {
-		POS = (x, y);
-	}
+	EDITOR_STATE.with(|editor| {
+		let mut editor = editor.borrow_mut();
+		if editor.tools.mouse_is_clicked {
+			editor.tools.trace.append_point(x, y)
+		}
+	})
 }
 
 /// Mouse click within the bounds of the canvas
 #[wasm_bindgen]
 pub fn on_mouse_click(x: u32, y: u32) -> Result<(), JsValue> {
 	let ev = events::Event::Click(events::MouseState::from_pos(x, y));
-	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_event(ev)).map_err(|err| Error::new(&err.to_string()).into())
+	EDITOR_STATE
+		.with(|editor| {
+			let mut editor = editor.borrow_mut();
+			editor.tools.mouse_is_clicked = true;
+			editor.tools.trace.clear();
+			editor.handle_event(ev)
+		})
+		.map_err(|err| Error::new(&err.to_string()).into())
+}
+
+/// Mouse released
+#[wasm_bindgen]
+pub fn on_mouse_release() {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().tools.mouse_is_clicked = false)
 }
 
 /// Update working colors

core/editor/src/dispatcher/events.rs

@@ -16,8 +16,26 @@ pub enum Response {
 	UpdateCanvas,
 }
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Default)]
 pub struct Trace(Vec<MouseState>);
+
+impl Trace {
+	pub fn new() -> Self {
+		Self::default()
+	}
+	pub fn first_point(&self) -> Option<&MouseState> {
+		self.0.first()
+	}
+	pub fn last_point(&self) -> Option<&MouseState> {
+		self.0.last()
+	}
+	pub fn append_point(&mut self, x: u32, y: u32) {
+		self.0.push(MouseState::from_pos(x, y))
+	}
+	pub fn clear(&mut self) {
+		self.0.clear()
+	}
+}
 #[derive(Debug, Clone, Default)]
 pub struct MouseState {
 	x: u32,

core/editor/src/tools/mod.rs

@@ -1,7 +1,9 @@
-use crate::Color;
+use crate::{events::Trace, Color};
 use std::collections::HashMap;
 
 pub struct ToolState {
+	pub mouse_is_clicked: bool,
+	pub trace: Trace,
 	pub primary_color: Color,
 	pub secondary_color: Color,
 	pub active_tool: ToolType,
@@ -11,6 +13,8 @@ pub struct ToolState {
 impl ToolState {
 	pub fn new() -> Self {
 		ToolState {
+			mouse_is_clicked: false,
+			trace: Trace::new(),
 			primary_color: Color::BLACK,
 			secondary_color: Color::WHITE,
 			active_tool: ToolType::Select,