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