trait matching does not exist

pong/src/game_object.rs

@@ -2,10 +2,11 @@ pub mod game_object {
     use std::fmt::Debug;
     use crate::game_object::components::{GeomComp, PhysicsComp};
     use crate::geom::geom::{BoundingBox, Vector};
-    use crate::geom::shape::ShapeType;
+    use crate::geom::shape::{Shape, ShapeType};
 
     pub trait GameObject : Debug {
         fn id(&self) -> u16;
+        fn shape(&self) -> &Box<dyn Shape>;
         fn pos(&self) -> &Vector;
         fn pos_mut(&mut self) -> &mut Vector;
         fn orientation(&self) -> &Vector;
@@ -35,6 +36,10 @@ pub mod game_object {
             self.id
         }
 
+        fn shape(&self) -> &Box<dyn Shape> {
+            self.geom.shape()
+        }
+
         fn pos(&self) -> &Vector {
             self.geom.center()
         }
@@ -86,6 +91,7 @@ pub mod components {
     use crate::geom::shape::Shape;
 
     pub trait GeomComp : Debug {
+        fn shape(&self) -> &Box<dyn Shape>;
         fn orientation(&self) -> &Vector;
         fn orientation_mut(&mut self) -> &mut Vector;
         fn center(&self) -> &Vector;
@@ -105,6 +111,10 @@ pub mod components {
     }
 
     impl GeomComp for DefaultGeomComp {
+        fn shape(&self) -> &Box<dyn Shape> {
+            &self.shape
+        }
+
         fn orientation(&self) -> &Vector {
             &self.shape.orientation()
         }

src/lib.rs

@@ -38,15 +38,16 @@ pub struct GameObjectDTO {
 }
 
 impl GameObjectDTO {
-    pub fn from(obj: &GameObject) -> GameObjectDTO {
+    pub fn from(obj: &Box<dyn GameObject>) -> GameObjectDTO {
+        let pos = obj.pos();
+        let shape = obj.shape();
         return GameObjectDTO {
-            id: obj.id,
-            x: obj.pos.x as u16,
-            y: obj.pos.y as u16,
-            shape_param_1: match obj.shape_params[..] {
-                [p1, _] => p1,
-                [p1] => p1,
-                _ => 0,
+            id: obj.id(),
+            x: pos.x as u16,
+            y: pos.y as u16,
+            shape_param_1: match shape.shape_type() {
+                ShapeType::Rect => shape.,
+                ShapeType::Circle =>
             },
             shape_param_2: match obj.shape_params[..] {
                 [_, p2] => p2,