Merge pull request 'scanning' (#1) from scanning into master

Reviewed-on: #1

src/main.rs

@@ -2,37 +2,94 @@ use core::f32;
 
 use macroquad::prelude::*;
 
-#[macroquad::main("InputKeys")]
-async fn main() {
-    // sin wave
-    let mut freq = 0.1;
-    let mut amp = 50.0;
-    let freq_mod = 0.001;
-    let amp_mod = 5.;
-    let y_offset = screen_height() / 2.0;
-    let mut x_offset = 0.0;
-    let x_mod = 5.0;
+const DOT_RADIUS: f32 = 1.0;
 
-    // selection box
+struct Dot {
+    x: f32,
+    y: f32,
+}
+
+impl Dot {
+    fn new(x: f32, y: f32) -> Self {
+        Self {x,y}
+    }
+    fn draw(&self) {
+        draw_circle(self.x, self.y,DOT_RADIUS, GREEN);
+    }
+}
+
+struct DebugWindow {
+    text: Vec<String>,
+    text_margin: f32,
+}
+impl DebugWindow {
+    fn new() -> Self {
+        Self {
+            text: Vec::new(),
+            text_margin: 20.0,
+        }
+    }
+    fn add_line(&mut self, line: String) {
+        self.text.push(line);
+    }
+    fn draw(&self) {
+        let params = TextParams { color: WHITE, ..Default::default()} ;
+
+        self.text.iter().enumerate().for_each(|(index, text)| {
+            let x = self.text_margin;
+            let y = self.text_margin+20.*(index as f32 + 1.);
+
+            // let measurement = measure_text(text, None, params.font_size, params.font_scale);
+            // draw_rectangle(x,y,measurement.width,-measurement.height, Color { r: 1., g: 1., b: 1., a: 0.25 });
+            draw_text_ex(text, x, y, params.clone());
+        });
+    }
+}
+
+#[macroquad::main("Graph")]
+async fn main() {
+    // Dot params 
+    let y_offset = screen_height() / 2.0;
+    let mut x_offset = screen_width();
+    let mut trail: Vec<Dot> = Vec::new();
+
+    // Selection box
     let mut inital_x_pos = 0.;
     let mut inital_y_pos = 0.;
     
+    // Tooling
     let mut show_debug = false;
+    let mut px_per_s: f32 = 100.;
 
     loop {
         clear_background(BLACK);
-        if show_debug {
-            let text_h = 20.0;
-            let text_margin = 20.0;
-            draw_text(&format!("Amplitude: {}, Freqency {}, X Offset {}", amp, freq, x_offset)                  , text_margin, text_h*1. +text_margin, text_h, WHITE);
-            draw_text(&format!("Cursor {:?}, Last Click {:?}", mouse_position(), (inital_x_pos, inital_y_pos))  , text_margin, text_h*2. +text_margin, text_h, WHITE);
+
+        let delta_time = get_frame_time();
+
+        if x_offset >= screen_width() {
+            // wrap once you've hit the end of the line
+            x_offset = 0.;
+            trail.clear();
+        } else {
+            x_offset = x_offset + (delta_time * px_per_s);
         }
 
-        // toggle debug box
-        if is_key_pressed(KeyCode::LeftControl) {
+        let x  = 0.+x_offset;
+        let y  = 0.+y_offset;
+
+        let dot = Dot::new(x,y);
+        trail.push(dot);
+        trail.iter().for_each(|d| d.draw());
+
+        if is_key_pressed(KeyCode::D) {
             show_debug = !show_debug;
         }
-
+        if is_key_pressed(KeyCode::Up) {
+            px_per_s += 5.;
+        }
+        if is_key_pressed(KeyCode::Down) {
+            px_per_s -= 5.;
+        }
         // selection box
         if is_mouse_button_pressed(MouseButton::Left) {
             (inital_x_pos, inital_y_pos) = mouse_position();
@@ -43,36 +100,19 @@ async fn main() {
             let width = x - inital_x_pos;
             let height = y - inital_y_pos;
 
-            draw_rectangle(inital_x_pos, inital_y_pos, width, height, Color { r: 0.2, g: 0.1, b: 1., a: 0.5 });
+            draw_rectangle(inital_x_pos, inital_y_pos, width, height, Color { r: 0.2, g: 0.1, b: 1., a: 0.3 });
+        }
+        // toggle debug box
+        if show_debug {
+            let mut debug = DebugWindow::new();
+            debug.add_line(format!("FPS {}, Latency {:.2}ms", get_fps(), delta_time * 1000.0));
+            debug.add_line(format!("px/s {}", px_per_s));
+            debug.add_line(format!("Dots {}", trail.len()));
+            debug.add_line(format!("Cursor Pos {:?}", mouse_position()));
+            debug.draw();
         }
 
-        // sin wave
-        for x in 0..(screen_width() as i32) {
-            let x = x as f32;
-
-            let y = f32::sin(x * freq + x_offset)*amp + y_offset;
-                
-            draw_circle(x, y, 3.0, GREEN);
-        }
-        if is_key_down(KeyCode::PageUp) {
-            freq += freq_mod;
-        }
-        if is_key_down(KeyCode::PageDown) {
-            freq -= freq_mod;
-        }
-        if is_key_down(KeyCode::Up) {
-            amp += amp_mod;
-        }
-        if is_key_down(KeyCode::Down) {
-            amp -= amp_mod;
-        }
-        if is_key_down(KeyCode::Left) {
-            x_offset += x_mod;
-        }
-        if is_key_down(KeyCode::Right) {
-            x_offset -= x_mod;
-        }
-
-        next_frame().await
+        next_frame().await;
     }
 }
+