From 4c5463951837274cf81e30766888e785d55804d6 Mon Sep 17 00:00:00 2001
From: Jarkko Toivanen <jt@jakest.us>
Date: Thu, 1 Aug 2024 02:43:59 +0300
Subject: [PATCH] Disabling event polling -> Blocking handling

Reduces flickering
---
 src/main.rs | 68 ++++++++++++++++++++++++-----------------------------
 1 file changed, 31 insertions(+), 37 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index d51a40d..9dce40a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,12 +1,9 @@
 use crossterm::{
-	event::{poll, read, Event, KeyCode},
+	event::{read, Event, KeyCode},
 	terminal, ExecutableCommand, cursor,
 };
 use std::panic;
-use std::{
-	io::{stdout, Result, Write, Stdout},
-	time::Duration,
-};
+use std::io::{stdout, Result, Write, Stdout};
 
 
 #[derive(Default)]
@@ -37,6 +34,7 @@ fn main() -> Result<()> {
 impl Nuudel {
 
 	pub fn run(&mut self, stdout: &mut Stdout) -> Result<()> {
+		self.draw_terminal(stdout)?;
 		while !self.quitting {
 			self.handle_events()?;
 			self.draw_terminal(stdout)?;
@@ -61,39 +59,37 @@ impl Nuudel {
 	}
 
 	fn handle_events(&mut self) -> Result<()> {
-		if poll(Duration::from_secs(0))? {
-			match read()? {
-				Event::Key(event) => match event.code {
-					KeyCode::Char('q') => {
-						self.quit();
-					},
-					KeyCode::Char('a') => {
-						print!("█");
-					},
-					KeyCode::Left => {
-						if self.cursorx > 0 {
-							self.cursorx -= 1;
-							self.cursorx = self.cursorx.clamp(0, terminal::size()?.0-1);
-						}
-					},
-					KeyCode::Right => {
-						self.cursorx += 1;
+		match read()? {
+			Event::Key(event) => match event.code {
+				KeyCode::Char('q') => {
+					self.quit();
+				},
+				KeyCode::Char('a') => {
+					print!("█");
+				},
+				KeyCode::Left => {
+					if self.cursorx > 0 {
+						self.cursorx -= 1;
 						self.cursorx = self.cursorx.clamp(0, terminal::size()?.0-1);
-					},
-					KeyCode::Up => {
-						if self.cursory > 0 {
-							self.cursory -= 1;
-						}
-						self.cursory = self.cursory.clamp(0, terminal::size()?.1-1);
-					},
-					KeyCode::Down => {
-						self.cursory += 1;
-						self.cursory = self.cursory.clamp(0, terminal::size()?.1-1);
-					},
-					_ => {}
+					}
+				},
+				KeyCode::Right => {
+					self.cursorx += 1;
+					self.cursorx = self.cursorx.clamp(0, terminal::size()?.0-1);
+				},
+				KeyCode::Up => {
+					if self.cursory > 0 {
+						self.cursory -= 1;
+					}
+					self.cursory = self.cursory.clamp(0, terminal::size()?.1-1);
+				},
+				KeyCode::Down => {
+					self.cursory += 1;
+					self.cursory = self.cursory.clamp(0, terminal::size()?.1-1);
 				},
 				_ => {}
-			}
+			},
+			_ => {}
 		}
 		Ok(())
 	}
@@ -131,8 +127,6 @@ impl Nuudel {
 		stdout.execute(cursor::MoveTo(self.cursorx, self.cursory))?;
 		stdout.execute(cursor::Show)?;
 
-		std::thread::sleep(Duration::from_millis(16));
-
 		Ok(())
 	}
 }