fixed unneeded as conversions

src/apr.rs

@@ -27,8 +27,8 @@ pub fn make_grid(ctx: &mut Context, r: u8, c: u8, board: &[Vec<u8>]) -> GameResu
             builder.rectangle(
                 DrawMode::fill(),
                 graphics::Rect {
-                    x: board::START_X + (board::BOARD_SQUARE_SIZE * col as f32),
-                    y: board::START_Y + (board::BOARD_SQUARE_SIZE * row as f32),
+                    x: board::START_X + (board::BOARD_SQUARE_SIZE * f32::from(col)),
+                    y: board::START_Y + (board::BOARD_SQUARE_SIZE * f32::from(row)),
                     w: board::BOARD_SQUARE_SIZE,
                     h: board::BOARD_SQUARE_SIZE,
                 },
@@ -144,8 +144,8 @@ impl EventHandler for Apr {
                     if mouse::button_pressed(ctx, MouseButton::Left) && !self.dragging {
                         let (posx, posy) = self.board.closest_square_coords(posn.x, posn.y);
                         if posx == x && posy == y {
-                            let x = board::START_X + board::BOARD_SQUARE_SIZE * (x as f32);
-                            let y = board::START_Y + board::BOARD_SQUARE_SIZE * (y as f32);
+                            let x = board::START_X + board::BOARD_SQUARE_SIZE * f32::from(x);
+                            let y = board::START_Y + board::BOARD_SQUARE_SIZE * f32::from(y);
                             self.dragging = true;
                             actor.posn = actor::ActorPosn::FloatingPosn {
                                 x,
@@ -186,8 +186,8 @@ impl EventHandler for Apr {
                     ctx,
                     &actor.image,
                     drawparams.dest([
-                        board::START_X + board::BOARD_SQUARE_SIZE * (x as f32),
-                        board::START_Y + board::BOARD_SQUARE_SIZE * (y as f32),
+                        board::START_X + board::BOARD_SQUARE_SIZE * f32::from(x),
+                        board::START_Y + board::BOARD_SQUARE_SIZE * f32::from(y),
                     ]),
                 )?,
             }

src/board.rs

@@ -27,11 +27,11 @@ impl Board {
         //First, normalise to within the grid.
         let mut x = x;
         x = x.max(START_X);
-        x = x.min(START_X + (BOARD_SQUARE_SIZE * self.col as f32) - 1.0);
+        x = x.min(START_X + (BOARD_SQUARE_SIZE * f32::from(self.col)) - 1.0);
 
         let mut y = y;
         y = y.max(START_Y);
-        y = y.min(START_Y + (BOARD_SQUARE_SIZE * self.row as f32) - 1.0);
+        y = y.min(START_Y + (BOARD_SQUARE_SIZE * f32::from(self.row)) - 1.0);
 
         //Then, remove the start x and y
         x -= START_X;

src/main.rs

@@ -1,3 +1,7 @@
+#![warn(
+    clippy::cast_lossless
+)]
+
 use ggez::event;
 use ggez::{ContextBuilder, GameResult};