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|
mod debug;
use debug::DebugPlugin;
use serde::Deserialize;
use std::fs::File;
use std::io::BufReader;
use bevy_inspector_egui::Inspectable;
use bevy::{
core::FixedTimestep,
prelude::*,
render::camera::ScalingMode,
sprite::MaterialMesh2dBundle,
window::{Window, WindowResized},
};
use bevy_rapier2d::prelude::*;
use bevy::diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin};
fn main() {
App::new()
.insert_resource(WindowDescriptor {
title: "Tanks!".to_string(),
resizable: true,
..Default::default()
})
.add_plugins(DefaultPlugins)
.add_startup_system(spawn_camera)
.add_startup_system(setup)
.add_plugin(LogDiagnosticsPlugin::default())
.add_plugin(FrameTimeDiagnosticsPlugin::default())
.add_plugin(RapierPhysicsPlugin::<NoUserData>::pixels_per_meter(100.0))
.add_plugin(RapierDebugRenderPlugin::default())
.add_system_to_stage(PhysicsStages::Writeback, camera_follow)
.add_system(movement)
.add_system(window_resized_event)
.run();
}
fn window_resized_event(
mut events: EventReader<WindowResized>,
mut window: ResMut<WindowDescriptor>,
) {
for event in events.iter() {
window.width = event.width.try_into().unwrap();
window.height = event.height.try_into().unwrap();
}
}
fn camera_follow(
player_query: Query<(&Player, &Transform)>,
mut camera_query: Query<&mut Transform, (Without<Player>, With<Camera>)>,
) {
let (_, transform) = player_query.single();
let mut camera_transform = camera_query.single_mut();
camera_transform.translation.x = transform.translation.x;
camera_transform.translation.y = transform.translation.y;
}
fn spawn_camera(mut commands: Commands) {
let mut camera = OrthographicCameraBundle::new_2d();
camera.orthographic_projection.scaling_mode = ScalingMode::WindowSize;
camera.orthographic_projection.scale = 1.0;
camera.transform = Transform::from_xyz(0.0, 0.0, 100.0);
commands.spawn_bundle(camera);
}
#[derive(Component, Inspectable)]
pub struct Player {
speed: f32,
radius: f32,
}
fn movement(mut player_query: Query<(&mut Player, &mut Velocity)>, keyboard: Res<Input<KeyCode>>) {
for (player, mut rb_vels) in player_query.iter_mut() {
let mut acc = Vec2::new(0.0, 0.0);
if keyboard.pressed(KeyCode::W) {
acc.y += 1.0;
}
if keyboard.pressed(KeyCode::S) {
acc.y -= 1.0;
}
if keyboard.pressed(KeyCode::A) {
acc.x -= 1.0;
}
if keyboard.pressed(KeyCode::D) {
acc.x += 1.0;
}
if acc.length_squared() > 0.0 {
acc /= acc.length();
}
rb_vels.linvel = acc * player.speed;
}
}
#[derive(Deserialize)]
struct Map {
name: String,
walls: Vec<Vec<i32>>,
hives: Vec<i32>,
lives: Vec<Vec<i32>>,
}
fn setup_map(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<ColorMaterial>>,
) {
let file = File::open("assets/maps/OFFC.txt").expect("No map file found");
let map: Map = serde_json::from_reader(BufReader::new(file)).unwrap();
let minx = map.walls.iter().map(|w| w[0]).min().unwrap() as f32;
let maxx = map.walls.iter().map(|w| w[2]).max().unwrap() as f32;
let miny = map.walls.iter().map(|w| w[1]).min().unwrap() as f32;
let maxy = map.walls.iter().map(|w| w[3]).max().unwrap() as f32;
let origin = Vec3::new(maxx - minx, maxy - miny, 0.0);
for wall in &map.walls {
let upleft = Vec3::new(wall[0] as f32, wall[1] as f32, 0.0);
let downright = Vec3::new(wall[2] as f32, wall[3] as f32, 0.0);
let center = (upleft + downright - origin) / 2.0;
let size_big = Vec3::new(
(wall[2] - wall[0] + 3) as f32,
(wall[3] - wall[1] + 3) as f32,
1.0,
);
let movecenter = center - Vec3::new(0.0, 0.0, if wall[4] == 2 { 1.0 } else { 0.0 });
commands.spawn_bundle(MaterialMesh2dBundle {
mesh: meshes.add(Mesh::from(shape::Quad::default())).into(),
transform: Transform {
translation: movecenter,
scale: size_big,
..default()
},
material: materials.add(ColorMaterial::from(Color::BLACK)),
..default()
});
}
for wall in &map.walls {
let upleft = Vec3::new(wall[0] as f32, wall[1] as f32, 0.0);
let downright = Vec3::new(wall[2] as f32, wall[3] as f32, 0.0);
let center = (upleft + downright - origin) / 2.0;
let size = Vec3::new((wall[2] - wall[0]) as f32, (wall[3] - wall[1]) as f32, 1.0);
let color = match wall[4] {
1 => Color::rgba(0.7, 0.2, 0.0, 1.0),
2 => Color::rgba(0.15, 0.4, 0.03, 1.0),
3 => Color::rgba(0.4, 0.4, 0.4, 1.0),
_ => Color::rgba(1.0, 0.4, 0.03, 1.0),
};
let movecenter = center - Vec3::new(0.0, 0.0, if wall[4] == 2 { 1.0 } else { 0.0 });
commands
.spawn_bundle(MaterialMesh2dBundle {
mesh: meshes.add(Mesh::from(shape::Quad::default())).into(),
transform: Transform {
translation: movecenter,
scale: size,
..default()
},
material: materials.add(ColorMaterial::from(color)),
..default()
})
.insert(Collider::cuboid(0.5, 0.5));
}
}
fn setup(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<ColorMaterial>>,
mut rapier_config: ResMut<RapierConfiguration>,
) {
rapier_config.gravity = Vec2::ZERO;
let color = commands
.spawn_bundle(MaterialMesh2dBundle {
mesh: meshes.add(Mesh::from(shape::Quad::default())).into(),
transform: Transform::default().with_scale(Vec3::splat(1.2)),
material: materials.add(ColorMaterial::from(Color::BLACK)),
..default()
})
.id();
commands
.spawn_bundle(MaterialMesh2dBundle {
mesh: meshes.add(Mesh::from(shape::Quad::default())).into(),
transform: Transform::default().with_scale(Vec3::splat(13.0)),
material: materials.add(ColorMaterial::from(Color::WHITE)),
..default()
})
.push_children(&[color])
.insert(Player {
speed: 300.0,
radius: 10.0,
})
.insert(RigidBody::Dynamic)
.insert(Restitution::coefficient(0.0))
.insert(Collider::ball(1.0))
.insert(LockedAxes::ROTATION_LOCKED)
.insert(Damping {
linear_damping: 0.8,
angular_damping: 1.0,
})
.insert(Velocity::zero());
setup_map(commands, meshes, materials);
}
|
