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|
extern crate gate;
use gate::{App, Audio};
use gate::app_info::AppInfo;
use gate::input::*;
use gate::renderer::{Renderer, Affine};
extern crate rand;
use rand::distributions::IndependentSample;
use rand::Isaac64Rng;
use std::f64::consts::PI;
mod asset_id { include!(concat!(env!("OUT_DIR"), "/asset_id.rs")); }
use asset_id::*;
mod geometry;
use geometry::*;
mod hitbox;
use hitbox::*;
mod entities;
use entities::bug::Bug;
use entities::home::Home;
struct BugBasherGame {
rng: Isaac64Rng,
bugs: Vec<Bug>,
home: Home,
points: i64,
lives: i64,
game_over: bool,
time_to_next_bug: f64
}
impl App<AssetId> for BugBasherGame {
fn start(&mut self, _audio: &mut Audio<AssetId>) {
}
fn advance(&mut self, seconds: f64, _audio: &mut Audio<AssetId>) -> bool {
if !self.game_over {
self.bugs.retain(|b| b.alive);
for bug in self.bugs.iter_mut() {
bug.advance(seconds);
if self.home.touches_circle(bug) {
bug.alive = false;
self.lives -= 1;
}
}
if self.lives <= 0 {
self.game_over = true;
}
self.time_to_next_bug -= seconds;
if self.time_to_next_bug <= 0. {
let time_dist = rand::distributions::Normal::new(2.0, 1.0);
self.time_to_next_bug = time_dist.ind_sample(&mut self.rng);
let angle_dist = rand::distributions::Range::new(0., 2.*PI);
let angle = angle_dist.ind_sample(&mut self.rng);
self.bugs.push(Bug::new(
angle.cos()*1000.,
angle.sin()*1000.,
angle + PI
));
}
}
true
}
fn input(&mut self, evt: InputEvent, _audio: &mut Audio<AssetId>) -> bool {
match evt {
InputEvent::MousePressed(MouseButton::Left, x, y) => {
for bug in self.bugs.iter_mut().filter(|bug| bug.touches_point(Vec2d { x, y })) {
if !self.game_over && bug.alive == true {
self.points += 1;
}
bug.alive = false;
}
},
InputEvent::KeyPressed(KeyCode::Return) => {
self.reset();
},
_ => {}
}
true
}
fn render(&mut self, renderer: &mut Renderer<AssetId>) {
let (app_width, app_height) = (renderer.app_width(), renderer.app_height());
renderer.clear((255,255,255));
{
let points_str = format!("{}", self.points);
let lives_str = format!("{}", self.lives);
BugBasherGame::print_string(renderer, &points_str, - app_width / 2. + 50., app_height / 2. - 50.);
BugBasherGame::print_string(renderer, &lives_str, app_width / 2. - 50. - lives_str.len() as f64 * 25., app_height / 2. - 50.);
}
{
let mut renderer = renderer.sprite_mode();
renderer.draw(
&Affine::translate(self.home.pos.x, self.home.pos.y),
SpriteId::Home
);
for bug in &self.bugs {
renderer.draw(
&Affine::translate(bug.pos.x, bug.pos.y).pre_rotate(bug.rotation),
SpriteId::Bug
);
}
}
}
}
impl BugBasherGame {
fn new() -> BugBasherGame {
let mut game = BugBasherGame {
rng: Isaac64Rng::new_unseeded(),
home: Home::new(0., 0.),
bugs: Vec::new(),
points: 0,
lives: 0,
game_over: true,
time_to_next_bug: 0.
};
game.reset();
game
}
fn reset(&mut self) {
self.bugs = Vec::new();
self.points = 0;
self.lives = 3;
self.game_over = false;
}
fn print_string(renderer: &mut Renderer<AssetId>, string: &str, x: f64, y: f64) {
let mut renderer = renderer.tiled_mode(-x, -y);
let spacing = 25.;
for (i, c) in string.chars().enumerate() {
let affine = Affine::translate(i as f64 * spacing, 0.);
let tile = match c {
'-' => TileId::NumberFontR0C0,
'0' => TileId::NumberFontR0C1,
'1' => TileId::NumberFontR0C2,
'2' => TileId::NumberFontR0C3,
'3' => TileId::NumberFontR0C4,
'4' => TileId::NumberFontR0C5,
'5' => TileId::NumberFontR0C6,
'6' => TileId::NumberFontR0C7,
'7' => TileId::NumberFontR0C8,
'8' => TileId::NumberFontR0C9,
'9' => TileId::NumberFontR0C10,
_ => TileId::NumberFontR0C0,
};
renderer.draw(&affine, tile);
};
}
}
fn main() {
let info = AppInfo::with_app_height(1000.).title("Bug Basher").build();
gate::run(info, BugBasherGame::new());
}
|
