workable viewport structure

4 files changed, 172 insertions, 54 deletions

diff --git a/src/main.rs b/src/main.rs
index 917bd64..b3c2e05 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,14 +1,16 @@
 pub mod constants;
+pub mod n1ck;
 pub mod tom;
+pub mod vertex;
 
 use luminance::context::GraphicsContext;
 use luminance::pipeline::{PipelineState, Viewport};
-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 tom::{Tom, VertexSemantics};
+
+use n1ck::N1ck;
+use tom::Tom;
+use vertex::VertexSemantics;
 
 fn gen_viewports() -> Vec<Viewport> {
     let mut viewports = Vec::new();
@@ -45,7 +47,7 @@ fn gen_viewports() -> Vec<Viewport> {
 }
 
 fn main() {
-    let mut surface = GlfwSurface::new(
+    let surface = GlfwSurface::new(
         WindowDim::Windowed(constants::WIDTH, constants::HEIGHT),
         "revision2020",
         WindowOpt::default(),
@@ -57,7 +59,9 @@ fn main() {
             .unwrap()
             .ignore_warnings();
 
-    let mut tom = Tom::new();
+    let (mut tom, surface) = Tom::new(surface);
+    let (mut n1ck, mut surface) = N1ck::new(surface);
+
     let viewports = gen_viewports();
 
     let mut run = true;
@@ -67,10 +71,11 @@ fn main() {
                 run = false;
             }
         }
-        let back_buffer = surface.back_buffer().unwrap();
 
-        tom.update();
+        surface = tom.update(surface);
+        surface = n1ck.update(surface);
 
+        let back_buffer = surface.back_buffer().unwrap();
         let mut pipeline_state = PipelineState::default();
         surface
             .pipeline_builder()
@@ -81,9 +86,13 @@ fn main() {
             pipeline_state = pipeline_state.enable_clear_color(false);
 
             if i == 0 {
-                tom.draw();
+                surface = tom.draw(surface, &back_buffer, &program, &pipeline_state);
             } else if i == 1 {
-                // lowman.draw()
+                surface = n1ck.draw(surface, &back_buffer, &program, &pipeline_state);
+            } else if i == 2 {
+                surface = tom.draw(surface, &back_buffer, &program, &pipeline_state);
+            } else if i == 3 {
+                surface = n1ck.draw(surface, &back_buffer, &program, &pipeline_state);
             }
         }
 
diff --git a/src/n1ck.rs b/src/n1ck.rs
new file mode 100644
index 0000000..db77278
--- /dev/null
+++ b/src/n1ck.rs
@@ -0,0 +1,94 @@
+use luminance::context::GraphicsContext;
+use luminance::framebuffer::Framebuffer;
+use luminance::pipeline::PipelineState;
+use luminance::render_state::RenderState;
+use luminance::shader::program::Program;
+use luminance::tess::{Mode, Tess, TessBuilder, TessSliceIndex};
+use luminance::texture::Dim2;
+
+use crate::vertex::{Vertex, VertexPosition, VertexRGB, VertexSemantics};
+
+fn gen_vertices() -> Vec<Vertex> {
+    let mut vertices: Vec<Vertex> = Vec::new();
+
+    vertices.push(Vertex {
+        position: VertexPosition::new([-0.5, -0.5]),
+        color: VertexRGB::new([255, 0, 0]),
+    });
+    vertices.push(Vertex {
+        position: VertexPosition::new([0.5, -0.5]),
+        color: VertexRGB::new([0, 255, 0]),
+    });
+    vertices.push(Vertex {
+        position: VertexPosition::new([0.0, 0.5]),
+        color: VertexRGB::new([0, 0, 255]),
+    });
+
+    vertices
+}
+
+fn alter_vertices(vertices: &mut Vec<Vertex>) {
+    for vertex in vertices {
+        if vertex.color[1] < 255 {
+            vertex.color[1] += 1;
+        }
+    }
+}
+
+pub struct N1ck {
+    vertices: Vec<Vertex>,
+    tessalation: Tess,
+}
+
+impl N1ck {
+    pub fn new<T: GraphicsContext>(mut surface: T) -> (N1ck, T) {
+        let vertices = gen_vertices();
+        let tessalation = TessBuilder::new(&mut surface)
+            .add_vertices(&vertices)
+            .set_mode(Mode::Triangle)
+            .build()
+            .unwrap();
+
+        (
+            N1ck {
+                vertices,
+                tessalation,
+            },
+            surface,
+        )
+    }
+
+    pub fn update<T: GraphicsContext>(&mut self, mut surface: T) -> T {
+        alter_vertices(&mut self.vertices);
+
+        self.tessalation = TessBuilder::new(&mut surface)
+            .add_vertices(&self.vertices)
+            .set_mode(Mode::Triangle)
+            .build()
+            .unwrap();
+
+        surface
+    }
+
+    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(self.tessalation.slice(..));
+                    });
+                });
+            },
+        );
+
+        surface
+    }
+}
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
     }
 }
diff --git a/src/vertex.rs b/src/vertex.rs
new file mode 100644
index 0000000..2030218
--- /dev/null
+++ b/src/vertex.rs
@@ -0,0 +1,17 @@
+use luminance_derive::{Semantics, Vertex};
+
+#[derive(Vertex)]
+#[vertex(sem = "VertexSemantics")]
+pub struct Vertex {
+    pub position: VertexPosition,
+    #[vertex(normalized = "true")]
+    pub 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,
+}