Remove unnecessary mut

[kaka/rust-sdl-test.git] / src / app.rs

diff --git a/src/app.rs b/src/app.rs
index c8f8665..3efa791 100644 (file)
--- a/src/app.rs
+++ b/src/app.rs
@@ -12,10 +12,7 @@ use boll::*;
 use common::Point2D;
 use sprites::SpriteManager;
 use NS_PER_FRAME;
-
-macro_rules! point { // because I don't know how to import it from common.rs ...
-    ( $x:expr, $y:expr ) => { Point2D { x:$x, y:$y } };
-}
+use point; // defined in common, but loaded from main...
 
 pub type Nanoseconds = u64;
 
@@ -103,7 +100,7 @@ impl ActiveState {
 
 impl AppState for ActiveState {
     fn update(&mut self, dt: Nanoseconds) {
-        for mut b in &mut self.bolls {
+        for b in &mut self.bolls {
             b.update();
         }
 
@@ -115,7 +112,7 @@ impl AppState for ActiveState {
     }
 
     fn render(&self, canvas: &mut Canvas<Window>) {
-        for mut b in &self.bolls {
+        for b in &self.bolls {
             b.draw(canvas, self.boll_size);
         }
     }