Pausing rendering, warnings cleanup, more statistics

src/renderer/ui.rs

@@ -1,3 +1,4 @@
+use std::collections::HashMap;
 use wgpu_glyph::{GlyphBrush, ab_glyph::FontArc, GlyphBrushBuilder, Section, Text};
 use wgpu::util::StagingBelt;
 use futures::executor::LocalPool;
@@ -11,7 +12,7 @@ pub struct UserInterface {
     local_pool: LocalPool,
     brush: GlyphBrush<()>,
     // Texts
-    fps_text: String
+    texts: HashMap<u32, String>
 }
 
 impl UserInterface {
@@ -22,27 +23,26 @@ impl UserInterface {
             staging_belt: StagingBelt::new(1024), 
             local_pool: LocalPool::new(), 
             brush: GlyphBrushBuilder::using_font(font).build(device, render_format),
-            fps_text: "-".to_string()
+            texts: HashMap::new()
         }
     }
 
-    fn print(&mut self, x: u32, y: u32, msg: &str) {
-        let text = Text::new(msg).with_color(WHITE);
-        self.brush.queue(Section {
-            screen_position: (x as f32, y as f32), 
-            bounds: (text.scale.x * text.text.len() as f32, text.scale.y),
-            text: vec![text],
-            ..Section::default()
-        });
-    }
-
-    pub fn set_fps(&mut self, fps: f32) {
-        self.fps_text = format!("FPS: {}", fps);
+    pub fn set_text(&mut self, index: u32, text: String) {
+        self.texts.insert(index, text);
     }
 
     pub fn render(&mut self, device: &wgpu::Device, encoder: &mut wgpu::CommandEncoder, target: &wgpu::TextureView, width: u32, height: u32) {
-        // Print texts
-        self.print(5, 5, &self.fps_text.clone());
+        for (id, text) in self.texts.iter() {
+
+            let text = Text::new(text).with_color(WHITE);
+            self.brush.queue(Section {
+                screen_position: (5 as f32, (5 + id*15) as f32), 
+                bounds: (text.scale.x * text.text.len() as f32, text.scale.y),
+                text: vec![text],
+                ..Section::default()
+            });
+        }
+
         // Draw
         self.brush.draw_queued(&device, &mut self.staging_belt, encoder, target, width, height).expect("Draw queued");
         self.staging_belt.finish();