From 5d2289d1c0eeab5610d10a7af35dbbb6fbb0474a Mon Sep 17 00:00:00 2001
From: tuxmain <tuxmain@zettascript.org>
Date: Fri, 26 Aug 2022 10:16:40 +0200
Subject: [PATCH] editor: move camera

---
 README.md     |  6 ++++++
 src/editor.rs | 14 ++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/README.md b/README.md
index 70716d5..c29d372 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,12 @@ Skip to level `N: u32` with the command `bevyjam <N>`.
 
 Edit the level `N: u32` with the command `bevyjam <N> e`.
 
+### Editor controls
+
+* **Select handles**: left click to select, click in void to deselect, CTRL+click to select many, CTRL+A to select all
+* **Move handles**: arrows to move one step, Shift+arrows to move continuously
+* **Move camera**: CTRL+arrows
+
 ## License
 
 GNU AGPL v3, CopyLeft 2022 Pascal Engélibert, Nixon Cheng
diff --git a/src/editor.rs b/src/editor.rs
index 08ebb43..5404140 100644
--- a/src/editor.rs
+++ b/src/editor.rs
@@ -184,9 +184,23 @@ fn setup(
 
 fn keyboard_input_system(
 	keyboard_input: Res<Input<KeyCode>>,
+	mut camera_query: Query<&mut Transform, (With<Camera>, Without<Draggable>)>,
 	mut drag_query: Query<(&mut Transform, &Selection, Option<&End>), With<Draggable>>,
 	mut drag_end_event: EventWriter<DragEndEvent>,
 ) {
+	if keyboard_input.pressed(KeyCode::LControl) || keyboard_input.pressed(KeyCode::RControl) {
+		let mut transform = camera_query.single_mut();
+		let drag = Vec3 {
+			x: (keyboard_input.pressed(KeyCode::Right) as i8
+				- keyboard_input.pressed(KeyCode::Left) as i8) as _,
+			y: (keyboard_input.pressed(KeyCode::Up) as i8
+				- keyboard_input.pressed(KeyCode::Down) as i8) as _,
+			z: 0.,
+		} * 8.;
+		transform.translation += drag;
+		return;
+	}
+
 	let drag = if keyboard_input.pressed(KeyCode::LShift) || keyboard_input.pressed(KeyCode::RShift)
 	{
 		Vec3 {