10 files changed, 102 insertions, 77 deletions
diff --git a/src/cow_face.rs b/src/bin/cow_model/cow_face.rs
index 58fcf57..529d555 100644
--- a/src/cow_face.rs
+++ b/src/bin/cow_model/cow_face.rs
@@ -2,7 +2,7 @@
 // This file auto-generated from cow_face.c using model_c2rs.py
 // Don't edit by hand!
 
-use cow_vertex::Vertex;
+use super::cow_vertex::Vertex;
 
 pub const COW_FACE_VERTICES: [Vertex; 335] = [
     Vertex { position: (4.897808, 1.946794, -0.628057),
diff --git a/src/cow_hide.rs b/src/bin/cow_model/cow_hide.rs
index 8e426af..6972b62 100644
--- a/src/cow_hide.rs
+++ b/src/bin/cow_model/cow_hide.rs
@@ -2,7 +2,7 @@
 // This file auto-generated from cow_hide.c using model_c2rs.py
 // Don't edit by hand!
 
-use cow_vertex::Vertex;
+use super::cow_vertex::Vertex;
 
 pub const COW_HIDE_VERTICES: [Vertex; 13049] = [
     Vertex { position: (2.229345, -0.992723, -0.862826),
diff --git a/src/cow_hoofs.rs b/src/bin/cow_model/cow_hoofs.rs
index 454e2c9..5d3fb25 100644
--- a/src/cow_hoofs.rs
+++ b/src/bin/cow_model/cow_hoofs.rs
@@ -2,7 +2,7 @@
 // This file auto-generated from cow_hoofs.c using model_c2rs.py
 // Don't edit by hand!
 
-use cow_vertex::Vertex;
+use super::cow_vertex::Vertex;
 
 pub const COW_HOOFS_VERTICES: [Vertex; 1031] = [
     Vertex { position: (1.970051, -3.141862, -1.065178),
diff --git a/src/cow_horns.rs b/src/bin/cow_model/cow_horns.rs
index 72b9b8d..86f1954 100644
--- a/src/cow_horns.rs
+++ b/src/bin/cow_model/cow_horns.rs
@@ -2,7 +2,7 @@
 // This file auto-generated from cow_horns.c using model_c2rs.py
 // Don't edit by hand!
 
-use cow_vertex::Vertex;
+use super::cow_vertex::Vertex;
 
 pub const COW_HORNS_VERTICES: [Vertex; 1019] = [
     Vertex { position: (4.22473, 2.624525, -0.491916),
diff --git a/src/cow_tail.rs b/src/bin/cow_model/cow_tail.rs
index 4dba8f4..93148ca 100644
--- a/src/cow_tail.rs
+++ b/src/bin/cow_model/cow_tail.rs
@@ -2,7 +2,7 @@
 // This file auto-generated from cow_tail.c using model_c2rs.py
 // Don't edit by hand!
 
-use cow_vertex::Vertex;
+use super::cow_vertex::Vertex;
 
 pub const COW_TAIL_VERTICES: [Vertex; 458] = [
     Vertex { position: (-3.67645, -0.551317, 0.077574),
diff --git a/src/cow_udder.rs b/src/bin/cow_model/cow_udder.rs
index 2ed7cdd..1d48444 100644
--- a/src/cow_udder.rs
+++ b/src/bin/cow_model/cow_udder.rs
@@ -2,7 +2,7 @@
 // This file auto-generated from cow_udder.c using model_c2rs.py
 // Don't edit by hand!
 
-use cow_vertex::Vertex;
+use super::cow_vertex::Vertex;
 
 pub const COW_UDDER_VERTICES: [Vertex; 1514] = [
     Vertex { position: (-2.033406, -0.91003, -0.96422),
diff --git a/src/cow_vertex.rs b/src/bin/cow_model/cow_vertex.rs
index c099052..c099052 100644
--- a/src/cow_vertex.rs
+++ b/src/bin/cow_model/cow_vertex.rs
diff --git a/src/bin/cow_model/mod.rs b/src/bin/cow_model/mod.rs
new file mode 100644
index 0000000..c0fdb01
--- /dev/null
+++ b/src/bin/cow_model/mod.rs
@@ -0,0 +1,15 @@
+
+mod cow_vertex;
+mod cow_face;
+mod cow_hide;
+mod cow_hoofs;
+mod cow_horns;
+mod cow_tail;
+mod cow_udder;
+
+pub use self::cow_face::COW_FACE_VERTICES;
+pub use self::cow_hide::COW_HIDE_VERTICES;
+pub use self::cow_hoofs::COW_HOOFS_VERTICES;
+pub use self::cow_horns::COW_HORNS_VERTICES;
+pub use self::cow_tail::COW_TAIL_VERTICES;
+pub use self::cow_udder::COW_UDDER_VERTICES;
diff --git a/src/main.rs b/src/bin/exuberantbovines.rs
index af0a37f..1fdf7a0 100644
--- a/src/main.rs
+++ b/src/bin/exuberantbovines.rs
@@ -1,25 +1,16 @@
 
+extern crate exuberantbovines;
+extern crate getopts;
+
 #[macro_use]
 extern crate glium; 
 
-extern crate image;
-extern crate getopts;
-
-use std::env;
-use std::u64;
-use std::process::exit;
+use exuberantbovines::{generic_main, util};
 use getopts::Options;
 use glium::glutin::os::unix::WindowBuilderExt;
-    
-mod util;
-mod cow_vertex;
-mod cow_face;
-mod cow_hide;
-mod cow_hoofs;
-mod cow_horns;
-mod cow_tail;
-mod cow_udder;
 
+mod cow_model;
+    
 fn run(window_id: Option<u64>) {
 
     use glium::{DisplayBuild, Surface};
@@ -40,17 +31,17 @@ fn run(window_id: Option<u64>) {
     let indices = glium::index::NoIndices(glium::index::PrimitiveType::TrianglesList);
 
     let face_vertices = glium::VertexBuffer::new(
-        &display, &cow_face::COW_FACE_VERTICES).unwrap();
+        &display, &cow_model::COW_FACE_VERTICES).unwrap();
     let hide_vertices = glium::VertexBuffer::new(
-        &display, &cow_hide::COW_HIDE_VERTICES).unwrap();
+        &display, &cow_model::COW_HIDE_VERTICES).unwrap();
     let hoofs_vertices = glium::VertexBuffer::new(
-        &display, &cow_hoofs::COW_HOOFS_VERTICES).unwrap();
+        &display, &cow_model::COW_HOOFS_VERTICES).unwrap();
     let horns_vertices = glium::VertexBuffer::new(
-        &display, &cow_horns::COW_HORNS_VERTICES).unwrap();
+        &display, &cow_model::COW_HORNS_VERTICES).unwrap();
     let tail_vertices = glium::VertexBuffer::new(
-        &display, &cow_tail::COW_TAIL_VERTICES).unwrap();
+        &display, &cow_model::COW_TAIL_VERTICES).unwrap();
     let udder_vertices = glium::VertexBuffer::new(
-        &display, &cow_udder::COW_UDDER_VERTICES).unwrap();
+        &display, &cow_model::COW_UDDER_VERTICES).unwrap();
 
     let vertex_shader_src = r#"
         #version 140 
@@ -186,63 +177,15 @@ fn run(window_id: Option<u64>) {
 
 }
 
-fn print_usage(program: &str, opts: Options) {
-    let brief = format!("Usage: {} [options]", program);
-    print!("{}", opts.usage(&brief));
-}
-
 fn main() {
-    let args: Vec<String> = env::args().collect();
-    let program = args[0].clone();
-
-    // Turn, eg, "-root" into "--root"
-    let args = util::convert_xscreensaver_args(args);
 
     let mut opts = Options::new();
-
-    // Common Args (all screensavers)
-    opts.optflag("h", "help", "print this help menu");
-    opts.optflag("", "window", "run in a window (IGNORED)");
-    opts.optflag("", "root", "run in root window (IGNORED)");
-    opts.optflag("", "fps", "show frames per second (IGNORED)");
-    opts.optopt("", "window-id", "X window id number", "NUM");
-
-    // Bovine-specific args
     opts.optflag("", "wire", "wireframe mode (IGNORED)");
     opts.optopt("c", "count", "how many cows? (1 to 9) (IGNORED)", "NUM");
     opts.optopt("", "delay", "inter-frame delay (0 to 100000) (IGNORED)", "NUM");
     opts.optopt("s", "speed", "how fast? ratio, with 1.0 as normal (IGNORED)", "NUM");
 
-    let matches = match opts.parse(&args[1..]) {
-        Ok(m) => { m }
-        Err(f) => {
-            print_usage(&program, opts);
-            println!("");
-            println!("{}", f.to_string());
-            exit(-1);
-        }
-    };
-
-    if matches.opt_present("help") {
-        print_usage(&program, opts);
-        exit(0);
-    }
-
-    // if no "--window-id", try environment variable (arg has priority though)
-    let window_id_string: Option<String> =
-        matches.opt_str("window-id")
-               .or(env::var("XSCREENSAVER_WINDOW").ok());
-
-    let window_id = window_id_string.map(|id| match util::dechex2u64(&id) {
-        Ok(y) => y,
-        Err(e) => {
-            println!("Couldn't parse numerical argument: {}", e);
-            exit(-1); },
-    });
-
-    if window_id.is_some() {
-        println!("Drawing on existing X window: 0x{:07X}", window_id.unwrap());
-    }
+    let (_, window_id) = generic_main(opts);
+    run(window_id)
 
-    run(window_id);
 }
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..c0f537d
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,67 @@
+
+#[macro_use]
+extern crate glium; 
+
+extern crate image;
+extern crate getopts;
+
+use std::env;
+use std::u64;
+use std::process::exit;
+use getopts::{Options, Matches};
+use glium::glutin::os::unix::WindowBuilderExt;
+    
+pub mod util;
+
+fn print_usage(program: &str, opts: Options) {
+    let brief = format!("Usage: {} [options]", program);
+    print!("{}", opts.usage(&brief));
+}
+
+pub fn generic_main(mut opts: Options) -> (Matches, Option<u64>) {
+    let args: Vec<String> = env::args().collect();
+    let program = args[0].clone();
+
+    // Turn, eg, "-root" into "--root"
+    let args = util::convert_xscreensaver_args(args);
+
+    // Common Args (all screensavers)
+    opts.optflag("h", "help", "print this help menu");
+    opts.optflag("", "window", "run in a window (IGNORED)");
+    opts.optflag("", "root", "run in root window (IGNORED)");
+    opts.optflag("", "fps", "show frames per second (IGNORED)");
+    opts.optopt("", "window-id", "X window id number", "NUM");
+
+    let matches = match opts.parse(&args[1..]) {
+        Ok(m) => { m }
+        Err(f) => {
+            print_usage(&program, opts);
+            println!("");
+            println!("{}", f.to_string());
+            exit(-1);
+        }
+    };
+
+    if matches.opt_present("help") {
+        print_usage(&program, opts);
+        exit(0);
+    }
+
+    // if no "--window-id", try environment variable (arg has priority though)
+    let window_id_string: Option<String> =
+        matches.opt_str("window-id")
+               .or(env::var("XSCREENSAVER_WINDOW").ok());
+
+    let window_id = window_id_string.map(|id| match util::dechex2u64(&id) {
+        Ok(y) => y,
+        Err(e) => {
+            println!("Couldn't parse numerical argument: {}", e);
+            exit(-1); },
+    });
+
+    if window_id.is_some() {
+        println!("Drawing on existing X window: 0x{:07X}", window_id.unwrap());
+    }
+
+    (matches, window_id)
+}