added greeting window

rdraught-w4/src/main.rs

@@ -0,0 +1,45 @@
+#![no_main]
+
+use w4::draw::{Color, Framebuffer};
+use w4::rt::Resources;
+use wasm4 as w4;
+
+struct Rdraught_wasm4 {
+    framebuffer: Framebuffer,
+}
+
+impl w4::rt::Runtime for Rdraught_wasm4 {
+    fn start(rs: Resources) -> Self {
+        rs.framebuffer.replace_palette([
+            Color(0xff000000),
+            Color(0x00ff0000),
+            Color(0x0000ff00),
+            Color(0xffff0000),
+        ]);
+        Rdraught_wasm4 {
+            framebuffer: rs.framebuffer,
+        }
+    }
+
+    fn update(&mut self) {
+        // if self.count % 60 == 0 {
+        //     w4::trace("tick");
+        //     self.count = 0;
+        // }
+        // self.count += 1;
+        self.framebuffer.rect([10, 10], [50, 50]);
+        self.framebuffer.oval([50, 50], [10, 10]);
+    }
+}
+
+w4::main! { Rdraught_wasm4 }
+
+// use wasm4::*;
+// use wasm4_sys;
+
+// #[unsafe(no_mangle)]
+// fn update() {
+//     unsafe {
+//         wasm4_sys::rect(10, 10, 32, 32);
+//     }
+// }