added slider thing, broke rendering somehow though

src/drawables/polygon.rs

@@ -2,14 +2,14 @@ use std::sync::Arc;
 use crate::canvas::*;
 use crate::canvas::managed::handles::{CanvasFontHandle, CanvasImageHandle, CanvasTextureHandle, Handle};
 use crate::canvas::canvas_frame::{Drawable};
-use crate::util::vertex::{VertexTypes, TextureVertex3D, Vertex3D, ColorVertex3D};
+use crate::util::vertex::{VertexType, TextureVertex3D, Vertex3D, ColorVertex3D};
 use crate::drawables::sprite::Sprite;
 
 /// Convex multi verticy polygon
 #[derive(Debug, Clone)]
 pub struct Polygon {
 
-    pub verts: VertexTypes,
+    pub verts: VertexType,
 
     position: (f32, f32),
     size: (f32, f32),
@@ -54,14 +54,14 @@ impl Polygon {
 
 
         Polygon {
-            verts: VertexTypes::ColorType(verts),
+            verts: VertexType::ColorType(verts),
             position: position,
             size: size,
         }
     }
 }
 impl Drawable for Polygon {
-    fn get(&self) -> Vec<VertexTypes> {
+    fn get(&self) -> Vec<VertexType> {
         vec![self.verts.clone()]
     }