only send changed cells, not the whole field each time

1 files changed, 30 insertions, 2 deletions

diff --git a/src/components.rs b/src/components.rs
index 3b17f0c..18de7f0 100644
--- a/src/components.rs
+++ b/src/components.rs
@@ -1,16 +1,38 @@
 
 use specs::{
 	DenseVecStorage,
+	VecStorage,
+	FlaggedStorage,
 	Component
 };
 
 use super::controls::Control;
+use super::pos::Pos;
 
-#[derive(Component, Debug, Clone)]
+
+#[derive(Debug, Clone)]
+pub struct Position{
+	pub pos: Pos,
+	pub prev: Option<Pos>
+}
+impl Position {
+	pub fn new(pos: Pos) -> Position {
+		Position{pos, prev: None}
+	}
+}
+
+impl Component for Position {
+    type Storage = FlaggedStorage<Self, VecStorage<Self>>;
+}
+
+#[derive(Debug, Clone)]
 pub struct Visible {
     pub sprite: String,
     pub height: f32
 }
+impl Component for Visible {
+    type Storage = FlaggedStorage<Self, VecStorage<Self>>;
+}
 
 #[derive(Component, Debug)]
 pub struct Controller(pub Control);
@@ -20,5 +42,11 @@ pub struct Blocking;
 
 #[derive(Component, Debug)]
 pub struct Played {
-	pub name: String
+	pub name: String,
+	pub is_new: bool
+}
+impl Played {
+	pub fn new(name: String) -> Played {
+		Played{name, is_new: true}
+	}
 }