Move 2D benchmarks into their own directory/crate.

benchmarks2d/all_benchmarks2.rs

@@ -0,0 +1,82 @@
+#![allow(dead_code)]
+
+extern crate nalgebra as na;
+
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen::prelude::*;
+
+use inflector::Inflector;
+
+use rapier_testbed2d::Testbed;
+use std::cmp::Ordering;
+
+mod balls2;
+mod boxes2;
+mod capsules2;
+mod heightfield2;
+mod joint_ball2;
+mod joint_fixed2;
+mod joint_prismatic2;
+mod pyramid2;
+
+fn demo_name_from_command_line() -> Option<String> {
+    let mut args = std::env::args();
+
+    while let Some(arg) = args.next() {
+        if &arg[..] == "--example" {
+            return args.next();
+        }
+    }
+
+    None
+}
+
+#[cfg(any(target_arch = "wasm32", target_arch = "asmjs"))]
+fn demo_name_from_url() -> Option<String> {
+    None
+    //    let window = stdweb::web::window();
+    //    let hash = window.location()?.search().ok()?;
+    //    Some(hash[1..].to_string())
+}
+
+#[cfg(not(any(target_arch = "wasm32", target_arch = "asmjs")))]
+fn demo_name_from_url() -> Option<String> {
+    None
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen(start))]
+pub fn main() {
+    let demo = demo_name_from_command_line()
+        .or_else(|| demo_name_from_url())
+        .unwrap_or(String::new())
+        .to_camel_case();
+
+    let mut builders: Vec<(_, fn(&mut Testbed))> = vec![
+        ("Balls", balls2::init_world),
+        ("Boxes", boxes2::init_world),
+        ("Capsules", capsules2::init_world),
+        ("Heightfield", heightfield2::init_world),
+        ("Pyramid", pyramid2::init_world),
+        ("(Stress test) joint ball", joint_ball2::init_world),
+        ("(Stress test) joint fixed", joint_fixed2::init_world),
+        (
+            "(Stress test) joint prismatic",
+            joint_prismatic2::init_world,
+        ),
+    ];
+
+    // Lexicographic sort, with stress tests moved at the end of the list.
+    builders.sort_by(|a, b| match (a.0.starts_with("("), b.0.starts_with("(")) {
+        (true, true) | (false, false) => a.0.cmp(b.0),
+        (true, false) => Ordering::Greater,
+        (false, true) => Ordering::Less,
+    });
+
+    let i = builders
+        .iter()
+        .position(|builder| builder.0.to_camel_case().as_str() == demo.as_str())
+        .unwrap_or(0);
+    let testbed = Testbed::from_builders(i, builders);
+
+    testbed.run()
+}