From 452d1cb1ea22b3572ea716fbd7e20f0cff3de5ec Mon Sep 17 00:00:00 2001
From: Melik Houij <houijmelik08@protonmail.com>
Date: Thu, 16 Mar 2023 09:07:12 +0100
Subject: [PATCH] messing around with imgui

---
 src/main.rs | 149 ++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 105 insertions(+), 44 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index d13544f..aa00574 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -8,7 +8,10 @@ const SCR_WIDTH: u32 = 1600;
 const SCR_HEIGHT: u32 = 900;
 const TITLE: &str = "GLFWtest";
 
-
+enum gameState {
+    Paused,
+    Playing
+}
 
 
 use imgui_glow_renderer::AutoRenderer;
@@ -59,6 +62,7 @@ fn main() {
                 Ok(ret) => ret,
                 Err(s) => panic!("Error with Initializing SDL Context: {}", s)
             };
+
         let gl = std::sync::Arc::new(unsafe{glow::Context::from_loader_function(|s| video.gl_get_proc_address(s) as *const _)});
 
         let event_loop = match sdl.event_pump()
@@ -113,70 +117,127 @@ fn main() {
     };
 
 
+
+    let mut State = gameState::Playing;
+
+
+
     let time = std::time::Instant::now();
     let mut spinSpeed = 1.0;
     let mut current_rad = 1.0;
     let projection: Matrix4<f32> = perspective(Deg(45.0), SCR_WIDTH as f32/ SCR_HEIGHT as f32, 0.1, 100.0);
+
+
+
     println!("entering main loop");
+
+
+
+
+
     // NOTE main loop here
-    'running: loop {
-        let currentFrame = time.elapsed().as_secs_f32();
-            deltaTime = currentFrame - lastFrame;
-            lastFrame = currentFrame;
-            current_rad += spinSpeed/15.0;
 
-            unsafe{
-                gl.enable(glow::DEPTH_TEST);
-                gl.clear(glow::COLOR_BUFFER_BIT | glow::DEPTH_BUFFER_BIT);
+    'main: loop {
+        match &State {
+            gameState::Playing => {
+                let currentFrame = time.elapsed().as_secs_f32();
+                deltaTime = currentFrame - lastFrame;
+                lastFrame = currentFrame;
+                current_rad += spinSpeed/15.0;
 
-                ourshader.Use();
-                let Projection: Matrix4<f32> = perspective(Deg(camera.Zoom), SCR_WIDTH as f32 / SCR_HEIGHT as f32, 0.1, 100.0);
+                unsafe{
+                    gl.enable(glow::DEPTH_TEST);
+                    gl.clear(glow::COLOR_BUFFER_BIT | glow::DEPTH_BUFFER_BIT);
 
-                let view = camera.GetViewMatrix();
-                ourshader.setMat4("projection", &projection);
-                ourshader.setMat4("view", &view);
+                    ourshader.Use();
+                    let Projection: Matrix4<f32> = perspective(Deg(camera.Zoom), SCR_WIDTH as f32 / SCR_HEIGHT as f32, 0.1, 100.0);
+
+                    let view = camera.GetViewMatrix();
+                    ourshader.setMat4("projection", &projection);
+                    ourshader.setMat4("view", &view);
 
 
 
-                let mut model: Matrix4<f32> = Matrix4::from_axis_angle(vec3(0.0, -1.0, 0.0).normalize(),
-                cgmath::Rad(current_rad));
-                model = model * Matrix4::from_scale(0.2);
-                ourshader.setMat4("model", &model);
+                    let mut model: Matrix4<f32> = Matrix4::from_axis_angle(vec3(0.0, -1.0, 0.0).normalize(),
+                                                                           cgmath::Rad(current_rad));
+                    model = model * Matrix4::from_scale(0.2);
+                    ourshader.setMat4("model", &model);
 
 
 
 
+                }
+                ourModel.Draw(&ourshader);
+
+                platform.prepare_frame(&mut imgui, &window, &events_loop);
+                let ui = imgui.new_frame();
+
+                ui.window("POLY I WILL FUCKING")
+                  .size([500.0, 100.0], imgui::Condition::FirstUseEver)
+                  .build(|| {
+                      ui.text("you serve no purpose in life");
+                      ui.text("Your Purpose in life is to suck my dick");
+                      ui.slider("The Spin Speed", 0.1, 10.0, &mut spinSpeed);
+                  });
+
+                drawDebugUI(ui, &ourModel);
+                let draw_data = imgui.render();
+
+
+                renderer.render(draw_data).unwrap();
+
+
+
+                window.gl_swap_window();
+                for event in events_loop.poll_iter() {
+                    platform.handle_event(&mut imgui, &event);
+
+                    match event {
+                        Event::Quit {..} |
+                        Event::KeyDown { keycode: Some(Keycode::Escape), .. } => {
+                            break 'main
+                        },
+                        Event::KeyDown {keycode: Some(Keycode::P), ..} => {
+                            State = gameState::Paused;
+                        }
+                        _ => {}
+                    }
+                }
             }
-        ourModel.Draw(&ourshader);
 
-        platform.prepare_frame(&mut imgui, &window, &events_loop);
-        let ui = imgui.new_frame();
+            gameState::Paused => {
 
-        ui.window("POLY I WILL FUCKING")
-            .size([500.0, 100.0], imgui::Condition::FirstUseEver)
-            .build(|| {
-                ui.text("you serve no purpose in life");
-                ui.text("Your Purpose in life is to suck my dick");
-                ui.slider("The Spin Speed", 0.1, 10.0, &mut spinSpeed);
-            });
+                for event in events_loop.poll_iter() {
+                    platform.handle_event(&mut imgui, &event);
 
-        let draw_data = imgui.render();
-
-        renderer.render(draw_data).unwrap();
-
-
-
-        window.gl_swap_window();
-        for event in events_loop.poll_iter() {
-            platform.handle_event(&mut imgui, &event);
-
-            match event {
-                Event::Quit {..} |
-                Event::KeyDown { keycode: Some(Keycode::Escape), .. } => {
-                    break 'running
-                },
-                _ => {}
+                    match event {
+                        Event::KeyDown {keycode: Some(Keycode::P), ..} => {
+                            State = gameState::Playing;
+                        }
+                        _ => {}
+                    }
+                }
             }
         }
     }
 }
+
+
+fn drawDebugUI(ui: &imgui::Ui, model: &model::Model) {
+    ui.window("Stats")
+        .size([300.0,500.0], imgui::Condition::Always)
+        .build(|| {
+            ui.text("Model Information");
+            ui.separator();
+            ui.text(format!("count meshes: {}", model.meshes.len()));
+            for i in 0..model.meshes.len()
+                {
+                    ui.text(format!("Mesh Number: {}",i ));
+                    ui.text(format!("count vertices: {}", model.meshes[i].vertices.len()));
+                    ui.separator();
+                }
+
+        });
+
+
+}