-// Wow. Such fractal.
-
-#[macro_use]
-
-extern crate glium;
-extern crate glutin;
-extern crate image;
-extern crate libxm;
-extern crate sdl2;
-
-use cube::Cube;
-use glium::{DisplayBuild, Surface};
-use glutin::ElementState::Pressed;
-use glutin::Event::KeyboardInput;
-use glutin::VirtualKeyCode;
-
-mod bounding_box;
-mod cube;
-mod mandelwow;
-mod sound;
-mod support;
-
-fn screenshot(display : &glium::Display) {
- let image: glium::texture::RawImage2d<u8> = display.read_front_buffer();
- let image = image::ImageBuffer::from_raw(image.width, image.height, image.data.into_owned()).unwrap();
- let image = image::DynamicImage::ImageRgba8(image).flipv();
- let mut output = std::fs::File::create(&std::path::Path::new("screenshot.png")).unwrap();
- image.save(&mut output, image::ImageFormat::PNG).unwrap();
+use cgmath::conv::array4x4;
+use cgmath::{Euler, Matrix4, Rad, SquareMatrix, Vector3, Vector4, Zero};
+use glium::glutin::event::{ self, Event, VirtualKeyCode, WindowEvent };
+use glium::glutin::event_loop::{ ControlFlow };
+use glium::{Display, Program, Surface, uniform};
+use mandelwow_lib::*;
+use std::f32::consts::PI;
+use std::rc::Rc;
+use std::time::{Duration, Instant};
+
+#[cfg(target_os = "emscripten")]
+use std::os::raw::{c_int, c_void};
+
+fn gl_info(display: &glium::Display) {
+ if cfg!(feature = "logging") {
+ let version = *display.get_opengl_version();
+ let api = match version {
+ glium::Version(glium::Api::Gl, _, _) => "OpenGL",
+ glium::Version(glium::Api::GlEs, _, _) => "OpenGL ES",
+ };
+ println!(
+ "{} context verson: {}",
+ api,
+ display.get_opengl_version_string()
+ );
+ }
}
-fn main() {
- let _soundplayer = sound::start();
+const SEA_XSIZE: usize = 40;
+const SEA_ZSIZE: usize = 25;
- let display = glium::glutin::WindowBuilder::new()
- //.with_dimensions(1024, 768)
- .with_fullscreen(glutin::get_primary_monitor())
- .with_depth_buffer(24)
- .with_vsync()
- .with_title(format!("MandelWow"))
- .build_glium()
- .unwrap();
+struct World {
+ mandelwow_program: Rc<Program>,
+ mandelwow_bounds: Cube,
+ mandelwow_bbox: BoundingBox,
+ bounding_box_enabled: bool,
- let mandelwow_program = mandelwow::program(&display);
- let bounding_box_program = bounding_box::solid_fill_program(&display);
+ shaded_cube: ShadedCube,
+ text: Text,
- let mut camera = support::camera::CameraState::new();
- let mut t: f32 = 0.0;
- let mut pause = false;
- let mut bounding_box_enabled = true;
- let mut fullscreen = true;
+ sea: [[Vector3<f32>; SEA_ZSIZE]; SEA_XSIZE],
- // These are the bounds of the 3D Mandelwow section which we render in 3-space.
- let bounds = Cube {
- xmin: -2.0,
- xmax: 0.7,
- ymin: -1.0,
- ymax: 1.0,
- zmin: -1.1,
- zmax: 1.1,
- };
-
- support::start_loop(|| {
- camera.update();
+ // For the zoom animation synchronized to the drum-hits
+ hit_time: f32,
+ last_hit: f32,
+}
+
+impl World {
+ pub fn new(display: &glium::Display) -> World {
+ let mandelwow_program = Rc::new(mandelwow::program(display));
+ let bounding_box_program = Rc::new(bounding_box::solid_fill_program(display));
+ let shaded_program = Rc::new(shaded_cube::shaded_program(display));
+
+ // These are the bounds for the 3D slice of the 4D Mandelwow
+ let mandelwow_bounds = Cube {
+ xmin: -2.0,
+ xmax: 0.7,
+ ymin: -1.0,
+ ymax: 1.0,
+ zmin: -1.1,
+ zmax: 1.1,
+ };
+
+ // Generate a wavy sea made of cubes
+ let sea_xmin = -20.0f32;
+ let sea_xmax = 20.0f32;
+ let sea_y = -2.5;
+ let sea_zmin = -2.0f32;
+ let sea_zmax = -27.0f32;
+ let sea_xstep = (sea_xmax - sea_xmin) / (SEA_XSIZE as f32);
+ let sea_zstep = (sea_zmax - sea_zmin) / (SEA_ZSIZE as f32);
+ println!("xstep={} ystep={:?}", sea_xstep, sea_zstep);
+
+ let mut sea = [[Vector3::zero(); SEA_ZSIZE]; SEA_XSIZE];
+ #[allow(clippy::needless_range_loop)]
+ for x in 0..SEA_XSIZE {
+ for z in 0..SEA_ZSIZE {
+ sea[x][z] = Vector3 {
+ x: sea_xmin + (x as f32) * sea_xstep,
+ y: sea_y,
+ z: sea_zmin + (z as f32) * sea_zstep,
+ };
+ }
+ }
- if !pause {
- // Increment time
- t += 0.01;
+ World {
+ mandelwow_program,
+ mandelwow_bbox: BoundingBox::new(
+ display, &mandelwow_bounds, bounding_box_program),
+ mandelwow_bounds,
+ bounding_box_enabled: true,
+
+ shaded_cube: ShadedCube::new(display, shaded_program),
+ text: text::Text::new(display),
+ sea,
+
+ hit_time: 0.0,
+ last_hit: 0.0,
}
+ }
+
+ fn draw_frame(
+ &self,
+ display: &Display,
+ camera: &support::camera::CameraState,
+ t: f32,
+ ) {
+ let perspview = camera.get_perspview();
+
+ let hit_delta = t - self.hit_time;
+ let hit_scale = 1. / (1. + hit_delta * hit_delta * 15.0) + 1.;
// Vary the wow factor to slice the Mandelwow along its 4th dimension.
let wmin = -0.8;
- let wmax = 0.8;
+ let wmax = 0.8;
let wsize = wmax - wmin;
let wow = (((t * 0.7).sin() + 1.0) / 2.0) * wsize + wmin;
let mut frame = display.draw();
frame.clear_color_and_depth((0.0, 0.0, 0.0, 1.0), 1.0);
- let z_trans = -2.0; // Send the model back a little bit so it fits the screen.
- let model = [
- [ t.cos(), t.sin(), 0.0, 0.0],
- [-t.sin(), t.cos(), 0.0, 0.0],
- [ 0.0, 0.0, 1.0, 0.0],
- [ 0.0, 0.0, z_trans, 1.0f32]
- ];
+ let rotation = Matrix4::from(Euler {
+ x: Rad(t.sin() / 3.),
+ y: Rad(t.sin() / 2.),
+ z: Rad(t / 1.5),
+ });
+ let z_trans = -3.0; // Send the model back a little bit so it fits the screen.
+ let scale = Matrix4::from_diagonal(Vector4::new(hit_scale, hit_scale, hit_scale, 1.0));
+ let model2 = Matrix4::from_translation(Vector3::unit_z() * z_trans) * rotation * scale;
+ let model = array4x4(model2);
// Draw the bounding box before the fractal, when the Z-buffer is still clear,
// so the lines behind the semi-translucent areas will be drawn.
- if bounding_box_enabled {
+ if self.bounding_box_enabled {
let uniforms = uniform! {
model: model,
view: camera.get_view(),
perspective: camera.get_perspective(),
};
- bounding_box::draw(&display, &mut frame, &bounding_box_program, &uniforms, &bounds);
+ self.mandelwow_bbox.draw(&mut frame, &uniforms);
+ }
+
+ let text_rot = Matrix4::from_angle_x(cgmath::Deg(-90.0f32));
+ let text_pos = Matrix4::from_translation(Vector3 {
+ x: 0.0,
+ y: 0.501,
+ z: 0.0f32,
+ }) * text_rot;
+ for x in 0..SEA_XSIZE {
+ for z in 0..SEA_ZSIZE {
+ let wave = ((x as f32 / SEA_XSIZE as f32 * PI * 5.0 + t * 2.0).sin()
+ + (z as f32 / SEA_ZSIZE as f32 * PI * 3.0 + t * 3.0).sin())
+ * 0.3;
+ let model = Matrix4::from_translation(
+ self.sea[x][z]
+ + Vector3 {
+ x: 0.,
+ y: wave,
+ z: 0.,
+ },
+ );
+ let uniforms = uniform! {
+ model: array4x4(model),
+ perspview: perspview,
+ col: [0., (1. - wave).abs() * 0.5, wave.abs()],
+ };
+ self.shaded_cube.draw(&mut frame, &uniforms);
+ let model = model * text_pos;
+ let c = (x + z * SEA_XSIZE) as u8 as char;
+ self.text.draw(&mut frame, c, &model, &perspview);
+ }
}
- mandelwow::draw(&display, &mut frame, &mandelwow_program, model, &camera, &bounds, wow);
+ mandelwow::draw(
+ &display,
+ &mut frame,
+ &self.mandelwow_program,
+ model,
+ &camera,
+ &self.mandelwow_bounds,
+ wow,
+ );
+
frame.finish().unwrap();
+ }
+}
- for ev in display.poll_events() {
- match ev {
- glium::glutin::Event::Closed |
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::Escape)) |
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::Q)) => {
- return support::Action::Stop
- },
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::B)) => {
- bounding_box_enabled ^= true;
- },
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::F)) => {
- fullscreen ^= true;
- if fullscreen {
- glutin::WindowBuilder::new()
- .with_fullscreen(glutin::get_primary_monitor())
- .rebuild_glium(&display).unwrap();
- } else {
- glutin::WindowBuilder::new()
- .rebuild_glium(&display).unwrap();
- }
- },
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::P)) => {
- pause ^= true;
- },
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageUp)) => {
- t += 0.01;
- },
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageDown)) => {
- t -= 0.01;
- },
- KeyboardInput(Pressed, _, Some(VirtualKeyCode::F10)) => {
- screenshot(&display);
- },
- ev => camera.process_input(&ev),
+
+#[cfg(target_os = "emscripten")]
+#[allow(non_camel_case_types)]
+type em_callback_func = unsafe extern "C" fn();
+#[cfg(target_os = "emscripten")]
+extern "C" {
+ fn emscripten_set_main_loop(func: em_callback_func, fps: c_int, simulate_infinite_loop: c_int);
+}
+
+#[cfg(target_os = "emscripten")]
+thread_local!(static MAIN_LOOP_CALLBACK: std::cell::RefCell<*mut c_void> =
+ std::cell::RefCell::new(std::ptr::null_mut()));
+
+#[cfg(target_os = "emscripten")]
+pub fn set_main_loop_callback<F>(callback: F)
+where
+ F: FnMut() -> support::Action,
+{
+ MAIN_LOOP_CALLBACK.with(|log| {
+ *log.borrow_mut() = &callback as *const _ as *mut c_void;
+ });
+
+ unsafe {
+ emscripten_set_main_loop(wrapper::<F>, 0, 1);
+ }
+
+ unsafe extern "C" fn wrapper<F>()
+ where
+ F: FnMut() -> support::Action,
+ {
+ MAIN_LOOP_CALLBACK.with(|z| {
+ let closure = *z.borrow_mut() as *mut F;
+ (*closure)();
+ });
+ }
+}
+
+#[cfg(not(target_os = "emscripten"))]
+pub fn set_main_loop_callback<F>(callback: F)
+where
+ F: FnMut() -> support::Action,
+{
+ support::start_loop(callback);
+}
+
+//extern crate gleam;
+
+/*
+extern "C" {
+ fn emscripten_GetProcAddress(
+ name: *const ::std::os::raw::c_char,
+ ) -> *const ::std::os::raw::c_void;
+}
+*/
+
+fn main() {
+ /*
+ let gl = gleam::gl::GlesFns::load_with(|addr| {
+ let addr = std::ffi::CString::new(addr).unwrap();
+ emscripten_GetProcAddress(addr.into_raw() as *const _) as *const _
+ });
+ gl.glGetInternalformativ(0, 0, 0, 0, 0);
+*/
+
+ let mut soundplayer = sound::start();
+
+ let event_loop = glutin::event_loop::EventLoop::new();
+ let window = glutin::window::WindowBuilder::new()
+ //.with_dimensions(1280, 720)
+ .with_title("MandelWow");
+ let context = glutin::ContextBuilder::new()
+ //.with_gl_profile(glutin::GlProfile::Core)
+ //.with_gl(glutin::GlRequest::Specific(glutin::Api::WebGl, (2, 0)))
+ .with_gl(glutin::GlRequest::Specific(
+ glutin::Api::OpenGlEs,
+ (3, 0),
+ ))
+ //.with_gl(glutin::GlRequest::Specific(glutin::Api::OpenGl, (4, 0)))
+ //.with_depth_buffer(24)
+ .with_vsync(true);
+
+ let display = glium::Display::new(window, context, &event_loop).unwrap();
+ gl_info(&display);
+ let mut world = World::new(&display);
+
+ let mut timer = Timer::new();
+ let mut camera = support::camera::CameraState::new();
+ let mut fullscreen = true;
+
+ event_loop.run(move |event, _, control_flow| {
+ let t = timer.t;
+ let new_hit = sound::hit_event(&mut soundplayer);
+ if new_hit > world.last_hit {
+ world.hit_time = t;
+ }
+ world.last_hit = new_hit;
+
+ camera.update();
+
+ *control_flow = ControlFlow::WaitUntil(Instant::now() + Duration::from_nanos(16_666_667));
+ match event {
+ Event::NewEvents(cause) => {
+ match cause {
+ event::StartCause::ResumeTimeReached { .. } | event::StartCause::Init => {
+ world.draw_frame(&display, &camera, t);
+ },
+ _ => {}
+ }
}
+ Event::WindowEvent { event, .. } => {
+ camera.process_input(&event);
+ match event {
+ WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
+ WindowEvent::KeyboardInput { input, .. } => {
+ if input.state == event::ElementState::Pressed {
+ if let Some(key) = input.virtual_keycode {
+ match key {
+ VirtualKeyCode::Escape | VirtualKeyCode::Q => {
+ *control_flow = ControlFlow::Exit;
+ }
+ VirtualKeyCode::B => world.bounding_box_enabled ^= true,
+ VirtualKeyCode::P => timer.pause ^= true,
+ VirtualKeyCode::PageUp => timer.t += 0.1,
+ VirtualKeyCode::PageDown => timer.t -= 0.2,
+ VirtualKeyCode::F10 => screenshot::take_screenshot(&display),
+ VirtualKeyCode::F11 | VirtualKeyCode::Return => {
+ fullscreen ^= true;
+ let fs = if fullscreen {
+ let monitor_handle = display.gl_window().window()
+ .available_monitors().next().unwrap();
+ Some(glium::glutin::window::Fullscreen::Borderless(monitor_handle))
+ } else {
+ None
+ };
+ display.gl_window().window().set_fullscreen(fs);
+ }
+ _ => (),
+ }
+ }
+ }
+ }
+ _ => (),
+ }
+ },
+ _ => (),
}
- support::Action::Continue
+ timer.update();
});
-
}