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--- devlogs:1_5_2022 [2022/05/01 14:19]
root created
+++ devlogs:1_5_2022 [2023/10/19 15:25] (current)
@@ Line 1: / Line 1: @@
 ====== Sunday, May 1st 2022 ======
+Still following this [[https://mbuffett.com/posts/bevy-snake-tutorial/ | tutorial]].
+==== Shit =====
+<code rust>
+fn position_translation(windows: Res<Windows>, mut q: Query<(&Position, &mut Transform)>) {
+    fn convert(pos: f32, bound_window: f32, bound_game: f32) -> f32 {
+        let tile_size = bound_window / bound_game;
+        pos / bound_game * bound_window - (bound_window / 2.) + (tile_size / 2.)
+    }
+    let window = windows.get_primary().unwrap();
+    for (pos, mut transform) in q.iter_mut() {
+        transform.translation = Vec3::new(
+            convert(pos.x as f32, window.width() as f32, ARENA_WIDTH as f32),
+            convert(pos.y as f32, window.height() as f32, ARENA_HEIGHT as f32),
+.0,
+        );
+    }
+}
+</code>
+<WRAP lo> explination from the dood ((the person whom wrote the tutorial)). </WRAP>
+The position translation: if an item’s x coordinate is at 5 in our system, the width in our system is 10, and the window width is 200, then the coordinate should be 5 / 10 * 200 - 200 / 2. We subtract half the window width because our coordinate system starts at the bottom left, and Translation starts from the center. We then add half the size of a single tile, because we want our sprites bottom left corner to be at the bottom left of a tile, not the center.
+{{:devlogs:snaketut.png?direct&600|}}
+lol.jpg
+\\
+<code rust>
+fn spawn_segment(mut commands: Commands, position: Position) -> Entity {
+    commands
+        .spawn_bundle(SpriteBundle{
+            sprite: Sprite{
+                color: SNAKE_SEGMENT_COLOR,
+                ..default()
+            },
+            ..default()
+        })
+        .insert(SnakeSegment)
+        .insert(position)
+        .insert(Size::square(0.65))
+        .id() // This is the entity as it is essentially an ID that connects some data together
+}
+</code>
+The above code is interesting as its returning an Entity, which is done with accessing the id() from the spawned spritebundle. \\
+<WRAP left important 60%>
+The entity is essentially an ID that connects some data together
+</WRAP>
+\\
+\\
+\\ ggs
+\\
+\\
+Yea this is sloooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooow 🤞🤞🤞🤞 on actually understanding this stuff better.
+~~DISCUSSION | Hallo~~

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