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2021-32-bit-holiday-jam
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At this point I need to hook up a gamepad

main
_ 2020-03-09 02:59:17 +00:00
parent 8c32e3674d
commit 7f15b34591
4 changed files with 70 additions and 15 deletions
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7
Cargo.lock generated
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@ -58,6 +58,11 @@ dependencies = [
"byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "float-ord"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "fuchsia-cprng"
version = "0.1.1"
@ -201,6 +206,7 @@ name = "opengl_rust"
version = "0.1.0"
dependencies = [
"byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"float-ord 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"gl 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
"glam 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
"iota 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@ -418,6 +424,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
"checksum crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
"checksum deflate 0.7.20 (registry+https://github.com/rust-lang/crates.io-index)" = "707b6a7b384888a70c8d2e8650b3e60170dfc6a67bb4aa67b6dfca57af4bedb4"
"checksum float-ord 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7bad48618fdb549078c333a7a8528acb57af271d0433bdecd523eb620628364e"
"checksum fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
"checksum gl 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a94edab108827d67608095e269cf862e60d920f144a5026d3dbcfd8b877fb404"
"checksum gl_generator 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1a95dfc23a2b4a9a2f5ab41d194f8bfda3cabec42af4e39f08c339eb2a0c124d"

2
Cargo.toml
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@ -9,7 +9,7 @@ edition = "2018"
[dependencies]
byteorder = "1.3.2"
float-ord = "0.2.0"
gl = "0.14.0"
glam = "0.8.5"

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76
src/bin/pumpkin.rs
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@ -1,6 +1,7 @@
#[macro_use]
extern crate maplit;
use float_ord::FloatOrd;
use glam::{Mat4, Quat, Vec3, Vec4};
use sdl2::event::Event;
@ -124,7 +125,7 @@ impl ControllerState {
) -> i32
{
const SPIN_RAMP_TIME: i32 = 30;
let spin_f = 4.0 * (spin_speed + 1) as f32 / SPIN_RAMP_TIME as f32;
let spin_f = 2.0 * (spin_speed + 1) as f32 / SPIN_RAMP_TIME as f32;
let spin_f = spin_f.to_radians ();
let mut delta = Quat::default ();
@ -178,6 +179,7 @@ struct WindTunnelState {
}
struct Airplane {
vel: Vec3,
pos: Vec3,
ori: Quat,
}
@ -195,7 +197,45 @@ impl FlightState {
pub fn step (&mut self, controller: &ControllerState) {
self.spin_speed = controller.control_quat (&mut self.airplane.ori, self.spin_speed);
self.airplane.pos += self.airplane.ori.mul_vec3 ((0.0, 1.0 / 30.0, 0.0).into ());
let airplane = &mut self.airplane;
// Info
let nose = airplane.ori.mul_vec3 ((0.0, 1.0, 0.0).into ());
let speed = airplane.vel.length ();
// Different from nose since planes are always drifting
let direction = match speed {
0.0 => Vec3::from ((0.0, 0.0, 0.0)),
_ => airplane.vel * (1.0 / speed),
};
let object_space_dir = airplane.ori.conjugate ().mul_vec3 (direction);
// Forces
let gravity = Vec3::from ((0.0, 0.0, -0.25));
let thrust = nose;
let laminar_drag = 0.5 * speed * -object_space_dir.y () * nose;
let turbulent_dir = Vec3::from ((0.5 * object_space_dir.x (), 0.0, object_space_dir.z ()));
let turbulent_drag = -speed * speed * airplane.ori.mul_vec3 (turbulent_dir);
let air_drag = laminar_drag + turbulent_drag;
// Accumulate forces and run an Euler integration step
let dt = 1.0 / 60.0;
airplane.vel += dt * (thrust + gravity + air_drag);
airplane.pos += dt * airplane.vel;
if airplane.pos.z () < 0.0 {
airplane.vel.set_z (0.0);
airplane.pos.set_z (0.0);
}
// Gauges
let alti = airplane.pos.z () * 100.0;
let airspeed = speed * 100.0;
println! ("Alti: {}, Airspeed: {}",
alti as i32,
airspeed as i32
);
}
}
@ -242,7 +282,7 @@ impl WindTunnelState {
impl WorldState {
pub fn new () -> Self {
Self {
play_mode: PlayMode::WindTunnel,
play_mode: PlayMode::FreeFlight,
wind_tunnel: WindTunnelState {
user_control: UserControl::Camera,
camera: Default::default (),
@ -257,6 +297,7 @@ impl WorldState {
flight: FlightState {
airplane: Airplane {
pos: (0.0, -0.5, 0.125).into (),
vel: (0.0, 0.0, 0.0).into (),
ori: Default::default (),
},
spin_speed: 0,
@ -691,7 +732,8 @@ struct GameGraphics {
mesh_pitch: RenderableModel,
mesh_arrow: RenderableModel,
texture: Texture,
texture_sky: Texture,
texture_grass: Texture,
pitch_colors: Vec <Vec3>,
grass_index: usize,
@ -754,8 +796,8 @@ impl GameGraphics {
let mesh_pitch = renderable_from_iqm_file ("pitch.iqm");
let mesh_arrow = renderable_from_iqm_file ("arrow.iqm");
let texture = Texture::from_file ("sky.png");
texture.bind ();
let texture_sky = Texture::from_file ("sky.png");
let texture_grass = Texture::from_file ("grass.png");
let (pitch_colors, grass_index) = {
let silver = (255.0, 255.0, 255.0);
@ -846,6 +888,7 @@ impl GameGraphics {
flags: hashmap! {
gl::CULL_FACE => true,
gl::DEPTH_TEST => true,
gl::TEXTURE_2D => false,
gl::STENCIL_TEST => true,
},
front_face: Some (FrontFace::Ccw),
@ -979,7 +1022,8 @@ impl GameGraphics {
mesh_pitch,
mesh_arrow,
texture,
texture_sky,
texture_grass,
pitch_colors,
grass_index,
@ -1037,7 +1081,9 @@ impl GameGraphics {
};
let inverse_airplane = airplane_model_mat.inverse ();
let proj_mat = Mat4::perspective_rh_gl (30.0f32.to_radians (), 1280.0 / 720.0, 0.5, 500.0);
let proj_mat = Mat4::perspective_rh_gl (30.0f32.to_radians (), 1280.0 / 720.0, 0.125, 200.0);
let airplane_scale = 1.0 / 128.0;
let view_mat = match state.play_mode {
PlayMode::WindTunnel => {
@ -1054,14 +1100,14 @@ impl GameGraphics {
},
PlayMode::FreeFlight => {
proj_mat *
Mat4::from_translation ((0.0, -0.6, -4.0).into ()) *
Mat4::from_translation (Vec3::from ((0.0, -4.8, -32.0)) * airplane_scale) *
Mat4::from_rotation_x (-90.0f32.to_radians ()) *
inverse_airplane
},
};
let airplane_model_mat = airplane_model_mat *
Mat4::from_scale ((0.125, 0.125, 0.125).into ());
Mat4::from_scale ((airplane_scale, airplane_scale, airplane_scale).into ());
let world_model_mat = Mat4::identity ();
@ -1103,9 +1149,9 @@ impl GameGraphics {
let draw_sky = true;
if draw_sky {
let sky_mvp_mat = view_mat * Mat4::from_scale ((16.0, 16.0, 16.0).into ());
let sky_mvp_mat = view_mat * Mat4::from_scale ((64.0, 64.0, 64.0).into ());
self.texture.bind ();
self.texture_sky.bind ();
glezz::uniform_matrix_4fv (unis [&MVP], &sky_mvp_mat);
glezz::uniform_3fv (unis [&ALBEDO], &white);
glezz::uniform_3fv (unis [&MIN_BRIGHT], &white);
@ -1149,7 +1195,7 @@ impl GameGraphics {
let attrs = shader_vars.attrs;
glezz::uniform_3fv (unis [&MIN_BRIGHT], &black);
glezz::uniform_3fv (unis [&MIN_ALBEDO], &white);
glezz::uniform_3fv (unis [&MIN_ALBEDO], &black);
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &light);
glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &Vec3::from ((0.0, 0.0, 1.0)));
@ -1162,6 +1208,8 @@ impl GameGraphics {
self.mesh_pitch.draw (attrs, self.grass_index);
});
self.texture_grass.bind ();
// Draw lit ground
passes.next ().unwrap ().with_shader (gl_state, self,
|shader_vars| {
@ -1184,7 +1232,7 @@ impl GameGraphics {
let unis = &shader_vars.unis;
glezz::uniform_3fv (unis [&MIN_BRIGHT], &black);
glezz::uniform_3fv (unis [&MIN_ALBEDO], &white);
glezz::uniform_3fv (unis [&MIN_ALBEDO], &black);
for arrow in arrows.iter () {
let mvp = view_mat * arrow.model_mat;