From af5e8f365478f62bc5108217317e70a6ee1accf4 Mon Sep 17 00:00:00 2001
From: Tom Barrett <tom@tombarrett.xyz>
Date: Wed, 4 Mar 2020 01:26:52 -0600
Subject: workable viewport structure

---
 src/tom.rs | 86 ++++++++++++++++++++++++++++++--------------------------------
 1 file changed, 42 insertions(+), 44 deletions(-)

(limited to 'src/tom.rs')

diff --git a/src/tom.rs b/src/tom.rs
index d1daa0a..dfdc846 100644
--- a/src/tom.rs
+++ b/src/tom.rs
@@ -1,26 +1,12 @@
 use luminance::context::GraphicsContext;
-use luminance::pipeline::{PipelineState, Viewport};
+use luminance::framebuffer::Framebuffer;
+use luminance::pipeline::PipelineState;
 use luminance::render_state::RenderState;
 use luminance::shader::program::Program;
-use luminance::tess::{Mode, TessBuilder, TessSliceIndex};
-use luminance_derive::{Semantics, Vertex};
-use luminance_glfw::{GlfwSurface, Surface, WindowDim, WindowEvent, WindowOpt};
+use luminance::tess::{Mode, Tess, TessBuilder, TessSliceIndex};
+use luminance::texture::Dim2;
 
-#[derive(Vertex)]
-#[vertex(sem = "VertexSemantics")]
-pub struct Vertex {
-    position: VertexPosition,
-    #[vertex(normalized = "true")]
-    color: VertexRGB,
-}
-
-#[derive(Copy, Clone, Debug, Semantics)]
-pub enum VertexSemantics {
-    #[sem(name = "position", repr = "[f32; 2]", wrapper = "VertexPosition")]
-    Position,
-    #[sem(name = "color", repr = "[u8; 3]", wrapper = "VertexRGB")]
-    Color,
-}
+use crate::vertex::{Vertex, VertexPosition, VertexRGB, VertexSemantics};
 
 fn gen_vertices() -> Vec<Vertex> {
     let mut vertices: Vec<Vertex> = Vec::new();
@@ -43,54 +29,66 @@ fn gen_vertices() -> Vec<Vertex> {
 
 fn alter_vertices(vertices: &mut Vec<Vertex>) {
     for vertex in vertices {
-        vertex.position[0] += 0.01;
-        if vertex.color[1] < 255 {
-            vertex.color[1] += 1;
+        if vertex.color[0] < 255 {
+            vertex.color[0] += 1;
         }
     }
 }
 
 pub struct Tom {
     vertices: Vec<Vertex>,
-    //tessalation: Tess,
+    tessalation: Tess,
 }
 
 impl Tom {
-    pub fn new() -> Tom {
-        let mut vertices = gen_vertices();
-        //let tessalation = TessBuilder::new(&mut surface)
-        //    .add_vertices(&vertices)
-        //    .set_mode(Mode::Triangle)
-        //    .build()
-        //    .unwrap();
-        Tom {
-            vertices,
-            //    tessalation,
-        }
+    pub fn new<T: GraphicsContext>(mut surface: T) -> (Tom, T) {
+        let vertices = gen_vertices();
+        let tessalation = TessBuilder::new(&mut surface)
+            .add_vertices(&vertices)
+            .set_mode(Mode::Triangle)
+            .build()
+            .unwrap();
+
+        (
+            Tom {
+                vertices,
+                tessalation,
+            },
+            surface,
+        )
     }
 
-    pub fn update(&mut self) {
+    pub fn update<T: GraphicsContext>(&mut self, mut surface: T) -> T {
         alter_vertices(&mut self.vertices);
-        //let tessalation = TessBuilder::new(&mut surface)
-        //    .add_vertices(&self.vertices)
-        //    .set_mode(Mode::Triangle)
-        //    .build()
-        //    .unwrap();
+
+        self.tessalation = TessBuilder::new(&mut surface)
+            .add_vertices(&self.vertices)
+            .set_mode(Mode::Triangle)
+            .build()
+            .unwrap();
+
+        surface
     }
 
-    pub fn draw(&self) {
-        /*
+    pub fn draw<T: GraphicsContext>(
+        &self,
+        mut surface: T,
+        back_buffer: &Framebuffer<Dim2, (), ()>,
+        program: &Program<VertexSemantics, (), ()>,
+        pipeline_state: &PipelineState,
+    ) -> T {
         surface.pipeline_builder().pipeline(
             &back_buffer,
             &pipeline_state,
             |_pipeline, mut shd_gate| {
                 shd_gate.shade(&program, |_, mut rdr_gate| {
                     rdr_gate.render(&RenderState::default(), |mut tess_gate| {
-                        //tess_gate.render(triangle.slice(..));
+                        tess_gate.render(self.tessalation.slice(..));
                     });
                 });
             },
         );
-        */
+
+        surface
     }
 }
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