a fix

src/apr.rs

@@ -14,6 +14,7 @@ pub struct Apr {
     board: board::Board,
     grid: Mesh,
     should_update_grid: bool,
+    dragging: bool,
 
     actors: Vec<actor::Actor>,
     behaviours: Vec<behaviour::Behaviour>,
@@ -98,6 +99,7 @@ impl EventHandler for Apr {
                         // no long clicking and dragging
                         let (x, y) = self.board.closest_square_coords(posn.x, posn.y);
                         actor.posn = actor::ActorPosn::BoardPosn { x, y };
+                        self.dragging = false;
                     } else {
                         actor.posn = actor::ActorPosn::FloatingPosn {
                             x: posn.x + held_x,
@@ -108,11 +110,12 @@ impl EventHandler for Apr {
                     }
                 }
                 actor::ActorPosn::BoardPosn { x, y } => {
-                    if mouse::button_pressed(ctx, MouseButton::Left) {
+                    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);
+                            self.dragging = true;
                             actor.posn = actor::ActorPosn::FloatingPosn {
                                 x,
                                 y,