From e1028d3d890d05767943bece0953bdc1b679320f Mon Sep 17 00:00:00 2001
From: Wynd <wyndmaster@gmail.com>
Date: Tue, 5 Nov 2024 01:23:56 +0200
Subject: [PATCH] Nicer way of moving around, still very WIP

---
 src/controller.rs | 43 +++++++++++++++++++++++++++++++++++--------
 1 file changed, 35 insertions(+), 8 deletions(-)

diff --git a/src/controller.rs b/src/controller.rs
index bd9d8f5..d88b8b1 100644
--- a/src/controller.rs
+++ b/src/controller.rs
@@ -1,5 +1,5 @@
 use winit::{
-	event::{ElementState, KeyEvent, MouseScrollDelta, WindowEvent},
+	event::{ElementState, KeyEvent, MouseButton, MouseScrollDelta, WindowEvent},
 	keyboard::{KeyCode, PhysicalKey},
 };
 
@@ -7,23 +7,48 @@ use crate::camera::Camera;
 
 pub struct CameraController {
 	speed: f32,
-	cursor: (f64, f64),
 	forward: f32,
+	cursor_start: (f32, f32),
+	movement: (f32, f32),
+	is_moving: bool,
 }
 
 impl CameraController {
 	pub fn new(speed: f32) -> Self {
 		Self {
 			speed,
-			cursor: (0.0, 0.0),
 			forward: 0.0,
+			cursor_start: (0.0, 0.0),
+			movement: (0.0, 0.0),
+			is_moving: false,
 		}
 	}
 
 	pub fn process_events(&mut self, event: &WindowEvent) -> bool {
 		match event {
+			WindowEvent::MouseInput { state, button, .. } => {
+				if state.is_pressed() && *button == MouseButton::Left {
+					self.is_moving = true;
+					return true;
+				}
+				else {
+					self.is_moving = false;
+					self.movement = (0.0, 0.0);
+				}
+				false
+			}
 			WindowEvent::CursorMoved { position, .. } => {
-				self.cursor = (position.x, position.y);
+				if !self.is_moving {
+					self.cursor_start = (position.x as f32, position.y as f32);
+				}
+				else {
+					let x = -self.cursor_start.0 + position.x as f32;
+					let x = x * 0.000001;
+					let y = self.cursor_start.1 - position.y as f32;
+					let y = y * 0.000001;
+
+					self.movement = (x, y);
+				}
 				true
 			}
 			WindowEvent::MouseWheel { delta, .. } => match delta {
@@ -50,11 +75,13 @@ impl CameraController {
 			camera.eye -= forward_norm * self.speed;
 		}
 
-		camera.eye.x = (self.cursor.0 as f32 / 1920.0) - 0.5;
-		camera.eye.y = (-self.cursor.1 as f32 / 1080.0) + 0.5;
+		if self.is_moving {
+			camera.eye.x += self.movement.0;
+			camera.eye.y += self.movement.1;
 
-		camera.target.x = (self.cursor.0 as f32 / 1920.0) - 0.5;
-		camera.target.y = (-self.cursor.1 as f32 / 1080.0) + 0.5;
+			camera.target.x += self.movement.0;
+			camera.target.y += self.movement.1;
+		}
 
 		self.forward = 0.0;
 	}