prepare

src/main.rs

@@ -5,12 +5,30 @@ use sdl2::event::Event;
 use sdl2::keyboard::Keycode;
 use std::time::Duration;
 
+struct Base {
+    lines: Vec<Line>,
+}
+
+struct Position {
+    x: u32,
+    y: u32,
+}
+
+struct Line {
+    start: Position,
+    end: Position,
+}
+
 pub fn main() {
     println!("Hello, world!");
+
+    let width = 800;
+    let height = 600;
+
     let sdl_context = sdl2::init().unwrap();
     let video_subsystem = sdl_context.video().unwrap();
 
-    let window = match video_subsystem.window("fractals", 800, 600)
+    let window = match video_subsystem.window("fractals", width, height)
         .position_centered()
         .build() {
             Ok(w) => { w },
@@ -23,6 +41,15 @@ pub fn main() {
     let mut i = 0;
     let mut flip = true;
 
+    let mut base = Base{lines:
+        vec![ Line{start: Position{x: width / 4, y: 3 * height / 4}
+            , end: Position{x: 3 * width / 4, y: 3 * height / 4}}
+        , Line{start: Position{x: 3* width / 4, y: 3 * height / 4}
+            , end: Position{x: width / 2, y: height / 4}}
+        , Line{start: Position{x: width / 2, y: height / 4}
+            , end: Position{x: width / 4, y: 3 * height / 4}}
+        ]};
+
     'running: loop {
         if i % 255 == 0 {
             flip = !flip;