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Begin work on next part, creation

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Stephen Seo 2019-10-06 12:31:27 +09:00
parent af2f3101af
commit e7a6dd1293
1 changed files with 230 additions and 2 deletions
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232
src/main.rs
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@ -22,6 +22,26 @@ const PARTICLE_RAND_ROT_RANGE: f32 = 0.5;
const JOINING_OPACITY_RATE: f32 = 0.00008;
const JOINING_FAR_DIST: f32 = 700.0;
const JOINING_NEAR_DIST: f32 = 150.0;
const DOUBLE_CLICK_TIME: f64 = 350.0;
fn interp_sq_inv(x: f32) -> f32 {
if x < 0.0 {
return 0.0
} else if x > 1.0 {
return 1.0
}
let y = x - 1.0;
-y * y + 1.0
}
fn interp_sq(x: f32) -> f32 {
if x < 0.0 {
return 0.0
} else if x > 1.0 {
return 1.0
}
x * x
}
enum MenuItemType {
Button {
@ -426,6 +446,59 @@ impl Menu {
],
}
}
fn s_07() -> Menu {
Menu {
items: vec![
Menu::text(
50.0,
HEIGHT_F - 130.0,
40.0,
true,
"Now that you are here, it must mean a new time of",
),
Menu::text(
50.0,
HEIGHT_F - 90.0,
40.0,
false,
"creation for the world.",
),
Menu::pause(200.0, false),
Menu::text(
50.0,
HEIGHT_F - 50.0,
40.0,
false,
"Try double-clicking the void to create something...",
),
],
}
}
fn s_08() -> Menu {
Menu {
items: vec![
Menu::instant_text(
50.0,
HEIGHT_F - 90.0,
35.0,
true,
"(Try double-clicking now...)",
),
],
}
}
fn s_09() -> Menu {
Menu {
items: vec![
Menu::pause(400.0, true),
Menu::text(50.0, HEIGHT_F - 140.0, 40.0, false,
"A new planet... It has most certainly been a while."),
]
}
}
}
struct Particle {
@ -582,6 +655,100 @@ impl RotatingParticleSystem {
}
}
struct ExplConvCircleParticle {
circle: Circle,
offset: f32,
r: f32,
}
struct ExplConvParticleSystem {
particles: Vec<ExplConvCircleParticle>,
lifetime: f64,
host_circle: Circle,
color: Color,
opacity: f32,
life_timer: f64,
}
impl ExplConvParticleSystem {
fn new(
lifetime: f64,
host_circle: Circle,
color: Color,
opacity: f32,
) -> Self {
ExplConvParticleSystem {
particles: Vec::new(),
lifetime,
host_circle,
color,
opacity,
life_timer: 0.0,
}
}
fn activate(&mut self, count: usize, offset: f32) {
self.life_timer = 0.0;
for i in 0..count {
self.particles.push(ExplConvCircleParticle {
circle: self.host_circle,
offset,
r: rand::thread_rng().gen_range(0.0, 360.0),
});
}
}
// returns true if finished
fn update(&mut self, dt: f64, planets: &mut Vec<Planet>) -> bool {
self.life_timer += dt;
if self.life_timer >= self.lifetime {
if !self.particles.is_empty() {
self.particles.clear();
planets.push(Planet{ circle: self.host_circle, color: self.color, });
return true;
}
return false;
}
if self.life_timer < self.lifetime / 2.0 {
let amount = interp_sq_inv((self.life_timer / self.lifetime) as f32 * 2.0);
for particle in &mut self.particles {
let dir = Transform::rotate(particle.r) * Vector::new(
particle.offset * amount, 0.0);
particle.circle.pos = dir + self.host_circle.pos;
}
} else {
let amount = 1.0 - interp_sq(((self.life_timer / self.lifetime) as f32 - 0.5) * 2.0);
for particle in &mut self.particles {
let dir = Transform::rotate(particle.r) * Vector::new(
particle.offset * amount, 0.0);
particle.circle.pos = dir + self.host_circle.pos;
}
}
return false;
}
fn draw(&mut self, window: &mut Window, transform: Transform) {
if self.opacity == 0.0 {
return;
}
for particle in &mut self.particles {
self.color.a = ((self.life_timer / self.lifetime) as f32 / 2.0 + 0.5) * self.opacity;
window.draw_ex(
&particle.circle,
Col(self.color),
transform,
1,
);
}
}
}
struct Planet {
circle: Circle,
color: Color,
}
struct GameState {
s_boom: Asset<Sound>,
s_get: Asset<Sound>,
@ -603,6 +770,11 @@ struct GameState {
player_r: f64,
player_particles: ParticleSystem,
joining_particles: RotatingParticleSystem,
is_create_mode: bool,
click_release_time: f64,
mouse_pos: Vector,
expl_conv_p_systems: Vec<ExplConvParticleSystem>,
planets: Vec<Planet>,
}
impl State for GameState {
@ -645,12 +817,18 @@ impl State for GameState {
0.1,
JOINING_FAR_DIST,
),
is_create_mode: false,
click_release_time: 0.0,
mouse_pos: Vector::new(0.0, 0.0),
expl_conv_p_systems: Vec::new(),
planets: Vec::new(),
})
}
fn event(&mut self, event: &Event, window: &mut Window) -> Result<()> {
match event {
Event::MouseMoved(v) => {
self.mouse_pos = *v;
let mut hovered = false;
for i in 0..self.menu.items.len() {
if self.menu.items[i].is_inside(v.x, v.y) {
@ -666,9 +844,25 @@ impl State for GameState {
}
}
Event::MouseButton(button, state) => {
if let ButtonState::Pressed = state {
if let ButtonState::Released = state {
self.click_release_time = 0.0;
} else if let ButtonState::Pressed = state {
if self.current_finished {
if self.selection_mode {
if self.is_create_mode {
if self.click_release_time < DOUBLE_CLICK_TIME {
if self.state == 8 {
let mut expl_conv_system = ExplConvParticleSystem::new(
1500.0, Circle::new(self.mouse_pos, 20.0),
Color::GREEN, 1.0,
);
expl_conv_system.activate(30, 200.0);
self.expl_conv_p_systems.push(expl_conv_system);
self.state = 9;
self.state_dirty = true;
}
}
}
else if self.selection_mode {
if let Some(idx) = self.current_item {
match self.state {
0 => {
@ -712,6 +906,7 @@ impl State for GameState {
match self.state {
0 | 1 => self.state += 1,
3 | 4 | 5 | 6 => self.state = 7,
7 => self.state = 8,
_ => self.state = 0,
}
self.state_dirty = true;
@ -779,6 +974,7 @@ impl State for GameState {
fn update(&mut self, window: &mut Window) -> Result<()> {
let dt = window.update_rate();
self.click_release_time += dt;
self.player_r += dt / 10.0;
if self.state_dirty {
@ -826,13 +1022,33 @@ impl State for GameState {
self.current_finished = false;
self.selection_mode = false;
}
7 => {
self.menu = Menu::s_07();
self.current_finished = false;
self.selection_mode = false;
}
8 => {
self.menu = Menu::s_08();
self.current_finished = true;
self.selection_mode = false;
self.is_create_mode = true;
}
9 => {
self.menu = Menu::s_09();
self.current_finished = false;
self.selection_mode = false;
self.is_create_mode = false;
}
_ => {
self.menu = Menu::start();
self.current_item = None;
self.selection_mode = true;
self.is_create_mode = false;
self.state = 0;
self.player_particles.opacity = 0.0;
self.joining_particles.particle_system.opacity = 0.0;
self.expl_conv_p_systems.clear();
self.planets.clear();
}
}
}
@ -961,6 +1177,12 @@ impl State for GameState {
self.player_particles.update(dt);
self.joining_particles.update(dt);
for i in (0..self.expl_conv_p_systems.len()).rev() {
if self.expl_conv_p_systems[i].update(dt, &mut self.planets) {
self.expl_conv_p_systems.swap_remove(i);
}
}
Ok(())
}
@ -1037,6 +1259,12 @@ impl State for GameState {
1,
);
self.joining_particles.draw(window, Transform::IDENTITY);
for expl_conv_ps in &mut self.expl_conv_p_systems {
expl_conv_ps.draw(window, Transform::IDENTITY);
}
for planet in &mut self.planets {
window.draw(&planet.circle, Col(planet.color));
}
Ok(())
}
}