439 lines
14 KiB
Rust
439 lines
14 KiB
Rust
use crate::helpers::round_f32_to_i32;
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use crate::music::Music;
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use crate::sprites::*;
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use tinyrand::{Rand, Seeded, StdRand};
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const CAR_ANIM_FRAMES: u8 = 10;
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const MOVE_RATE: f32 = 1f32;
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const MULTIPLIER_INC_RATE: f32 = 0.25f32;
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const SPEEDUP_INC: f32 = 0.47f32;
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const SLOWDOWN_DIV: f32 = 1.3f32;
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const BUILDING_FRAMES: u32 = 100;
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const BUILDING_RANGE: f32 = 90f32;
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const DAMAGED_FRAMES_MAX: u16 = 120;
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const GAMEOVER_SLOWDOWN_RATE: f32 = 0.01f32;
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#[derive(Copy, Clone, Debug, PartialEq)]
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enum Building {
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House,
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SpeedUp,
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SlowDown,
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WrongHouse,
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}
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impl Building {
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pub fn random(rand: &mut StdRand) -> Self {
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match rand.next_u16() % 30 {
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0..=9 => Building::House,
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10..=14 => Building::SpeedUp,
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15..=19 => Building::SlowDown,
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20..=29 => Building::WrongHouse,
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_ => unreachable!(),
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}
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}
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}
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pub struct World {
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car_state: bool,
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car_frames: u8,
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rand: StdRand,
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street_offset: f32,
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shrubs: [Option<(f32, f32)>; 8],
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// x, type, state
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// state:
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// - 0 broken
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// - 1 fixed
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building: Option<(f32, Building, u8)>,
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building_frames: u32,
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building_frames_max: u32,
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is_in_range: bool,
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score: u64,
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rate_multiplier: f32,
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status_text: Option<(&'static str, u32)>,
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score_buf: [u8; 16],
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music: Music,
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lives: u8,
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damaged_frames: u16,
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}
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impl World {
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pub fn new() -> World {
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World {
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car_state: false,
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car_frames: 0,
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rand: StdRand::seed(3),
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street_offset: 0.0f32,
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shrubs: [None, None, None, None, None, None, None, None],
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building: None,
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building_frames: 0,
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building_frames_max: BUILDING_FRAMES,
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is_in_range: false,
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score: 0,
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rate_multiplier: 1f32,
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status_text: Some((
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"Ludum Dare 53:\nHouse Delivery!\n\nBy: BurnedKirby\n\nClick to focus!",
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300,
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)),
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score_buf: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
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music: Music::new(),
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lives: 3,
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damaged_frames: 0,
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}
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}
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fn reset(&mut self) {
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self.car_state = false;
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self.car_frames = 0;
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self.street_offset = 0f32;
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for shrub in &mut self.shrubs {
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shrub.take();
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}
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self.building = None;
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self.building_frames = 0;
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self.building_frames_max = BUILDING_FRAMES;
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self.is_in_range = false;
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self.score = 0;
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self.rate_multiplier = 1f32;
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self.status_text = Some(("Ludum Dare 53:\nHouse Delivery!\n\nBy: BurnedKirby", 300));
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for score in &mut self.score_buf {
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*score = 0;
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}
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self.music.reset();
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self.lives = 3;
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self.damaged_frames = 0;
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}
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pub fn decrement_lives(&mut self) -> bool {
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if self.lives > 0 {
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self.lives -= 1;
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if self.lives == 0 {
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self.music.gameover();
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}
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}
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self.lives != 0
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}
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pub fn get_move_rate(&self) -> f32 {
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MOVE_RATE * self.rate_multiplier
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}
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pub fn update(&mut self) {
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let gamepad = unsafe { *crate::GAMEPAD1 };
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let mouse = unsafe { *crate::MOUSE_BUTTONS };
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self.car_frames += 1;
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if self.car_frames > CAR_ANIM_FRAMES {
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self.car_frames = 0;
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if self.car_state {
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self.car_state = false;
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} else {
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self.car_state = true;
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}
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}
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if self.rate_multiplier <= 0f32 {
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self.car_state = true;
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}
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self.street_offset -= self.get_move_rate();
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if self.street_offset <= -45f32 {
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self.street_offset += 45f32;
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}
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self.music.update();
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if let Some((_, t)) = &mut self.status_text {
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*t -= 1;
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if *t == 0 {
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self.status_text.take();
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}
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}
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if self.damaged_frames != 0 {
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self.damaged_frames -= 1;
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}
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let mut empty_shrub_exists: Option<usize> = None;
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let move_rate = self.get_move_rate();
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for (idx, shrub) in self.shrubs.iter_mut().enumerate() {
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if let Some((x, _y)) = shrub {
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if *x < -(PLANT_WIDTH as f32) {
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shrub.take();
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} else {
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*x -= move_rate;
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}
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} else {
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empty_shrub_exists = Some(idx);
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}
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}
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{
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let move_rate = self.get_move_rate();
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if let Some((x, _, _)) = &mut self.building {
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*x -= move_rate;
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}
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}
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if self.lives == 0 {
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self.rate_multiplier -= GAMEOVER_SLOWDOWN_RATE;
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if self.rate_multiplier < 0f32 {
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self.rate_multiplier = 0f32;
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}
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if (gamepad & crate::BUTTON_2) != 0 {
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self.reset();
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}
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return;
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}
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if empty_shrub_exists.is_some() && self.rand.next_u16() % 32 == 0 {
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self.shrubs[empty_shrub_exists.unwrap()] =
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Some((180f32, (self.rand.next_u16() % 80 + 60) as f32));
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}
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if self.building.is_none() {
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self.building_frames += 1;
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if self.building_frames > self.building_frames_max {
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self.building_frames = 0;
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self.building = Some((170f32, Building::random(&mut self.rand), 0));
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self.building_frames_max = BUILDING_FRAMES + (self.rand.next_u16() % 100) as u32;
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}
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} else {
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let pos_ref: &f32 = &self.building.as_ref().unwrap().0;
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let building_type = self.building.as_ref().unwrap().1;
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let state_ref: &u8 = &self.building.as_ref().unwrap().2;
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if *state_ref == 0 && *pos_ref < BUILDING_RANGE && *pos_ref >= -20f32 {
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self.is_in_range = true;
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} else if building_type == Building::House && *pos_ref < -(HOUSE0_WIDTH as f32) {
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if self.is_in_range {
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if self.decrement_lives() {
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self.rate_multiplier /= 2f32;
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if self.rate_multiplier < 1f32 {
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self.rate_multiplier = 1f32;
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}
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self.status_text = Some(("Miss!\nSlow down!", 120));
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self.music.slow_down();
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self.damaged_frames = DAMAGED_FRAMES_MAX;
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}
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self.music.damaged();
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}
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self.building.take();
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self.is_in_range = false;
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} else if (building_type == Building::SpeedUp || building_type == Building::SlowDown)
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&& *pos_ref < -(SPEEDUP_WIDTH as f32)
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{
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self.building.take();
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self.status_text = Some(("It's OK!\nKeep delivering!", 120));
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self.is_in_range = false;
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} else if building_type == Building::WrongHouse && *pos_ref < -(HOUSE0_WIDTH as f32) {
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if self.is_in_range {
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self.status_text = Some(("OK!\nKeep going!", 120));
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}
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self.building.take();
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self.is_in_range = false;
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}
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}
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if (gamepad & crate::BUTTON_1) != 0 {
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self.rand.next_u16();
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if self.is_in_range {
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self.is_in_range = false;
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match self.building.as_ref().unwrap().1 {
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Building::House => {
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self.building.as_mut().unwrap().2 = 1;
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self.score += 1;
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self.rate_multiplier += MULTIPLIER_INC_RATE;
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self.status_text = Some(("Nice delivery!\nSpeed up!", 120));
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self.music.speed_up();
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}
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Building::SpeedUp => {
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self.rate_multiplier += SPEEDUP_INC;
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self.status_text = Some(("Speed up!", 120));
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self.building.take();
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self.music.speed_up();
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}
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Building::SlowDown => {
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self.rate_multiplier /= SLOWDOWN_DIV;
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if self.rate_multiplier < 1f32 {
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self.rate_multiplier = 1f32;
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}
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self.status_text = Some(("Slow down!", 120));
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self.building.take();
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self.music.slow_down();
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}
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Building::WrongHouse => {
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self.building.as_mut().unwrap().2 = 1;
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if self.decrement_lives() {
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self.rate_multiplier /= SLOWDOWN_DIV;
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if self.rate_multiplier < 1f32 {
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self.rate_multiplier = 1f32;
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}
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self.status_text = Some(("Oh no!\nSlow down!", 120));
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self.music.slow_down();
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self.damaged_frames = DAMAGED_FRAMES_MAX;
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}
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self.music.damaged();
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}
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}
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self.music.start();
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}
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}
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}
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pub fn draw(&mut self) {
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unsafe {
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*crate::DRAW_COLORS = 0x21;
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}
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crate::rect(-5, 120, 170, 5);
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let mut x = -5 + round_f32_to_i32(self.street_offset);
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while x < 170 {
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crate::rect(x, 140, 30, 5);
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x += 45;
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}
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unsafe {
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*crate::DRAW_COLORS = 0x312;
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}
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for shrub in &self.shrubs {
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if let Some((x, y)) = shrub {
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crate::blit(
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&PLANT,
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round_f32_to_i32(*x),
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round_f32_to_i32(*y),
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PLANT_WIDTH,
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PLANT_HEIGHT,
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PLANT_FLAGS,
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);
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}
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}
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if let Some((x, building_type, state)) = &self.building {
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match building_type {
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Building::WrongHouse => crate::blit(
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&HOUSE0,
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round_f32_to_i32(*x),
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30,
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HOUSE0_WIDTH,
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HOUSE0_HEIGHT,
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HOUSE0_FLAGS,
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),
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Building::House => match state {
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0 => crate::blit(
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&HOUSE1,
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round_f32_to_i32(*x),
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30 + HOUSE0_HEIGHT as i32 - HOUSE1_HEIGHT as i32,
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HOUSE1_WIDTH,
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HOUSE1_HEIGHT,
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HOUSE1_FLAGS,
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),
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1 => crate::blit(
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&HOUSE0,
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round_f32_to_i32(*x),
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30,
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HOUSE0_WIDTH,
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HOUSE0_HEIGHT,
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HOUSE0_FLAGS,
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),
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_ => (),
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},
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Building::SpeedUp => crate::blit(
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&SPEEDUP,
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round_f32_to_i32(*x),
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50,
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SPEEDUP_WIDTH,
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SPEEDUP_HEIGHT,
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SPEEDUP_FLAGS,
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),
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Building::SlowDown => crate::blit(
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&SLOWDOWN,
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round_f32_to_i32(*x),
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50,
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SLOWDOWN_WIDTH,
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SLOWDOWN_HEIGHT,
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SLOWDOWN_FLAGS,
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),
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}
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}
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if self.damaged_frames % 4 < 2 || self.lives == 0 {
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if self.car_state {
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crate::blit(&CAR0, 10, 103, CAR0_WIDTH, CAR0_HEIGHT, CAR0_FLAGS);
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} else {
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crate::blit(&CAR1, 10, 103, CAR1_WIDTH, CAR1_HEIGHT, CAR1_FLAGS);
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}
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}
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if self.is_in_range {
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unsafe {
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*crate::DRAW_COLORS = 0x1;
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}
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if let Some((_, Building::WrongHouse, _)) = self.building {
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crate::text("Don't Press!", 5, 10);
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} else if let Some((_, Building::SpeedUp, _)) = self.building {
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crate::text(b"Press \x80?", 5, 10);
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} else if let Some((_, Building::SlowDown, _)) = self.building {
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crate::text(b"Press \x80?", 5, 10);
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} else {
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crate::text(b"Press \x80!", 5, 10);
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}
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}
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unsafe {
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*crate::DRAW_COLORS = 0x1;
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}
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match self.lives {
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3 => crate::text("3 HP", 0, 0),
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2 => crate::text("2 HP", 0, 0),
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1 => crate::text("1 HP", 0, 0),
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0 => crate::text("0 HP", 0, 0),
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_ => unreachable!(),
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}
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if let Some((s, t)) = self.status_text {
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if (t / 10) % 4 <= 1 {
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crate::text(s, 20, 30);
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}
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}
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let mut width = 0;
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let mut temp = self.score;
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while temp > 0 {
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temp /= 10;
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width += 1;
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}
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if width == 0 {
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width = 1;
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}
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temp = self.score;
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if width < 15 {
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for i in 0..width {
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self.score_buf[width - 1 - i] = '0' as u8 + (temp % 10) as u8;
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temp /= 10;
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}
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for i in width..16 {
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self.score_buf[i] = 0;
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}
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if self.lives > 0 {
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crate::custom_text(self.score_buf, width, 160 - width as i32 * 8, 0);
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} else {
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crate::text("GAME OVER", 40, 40);
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crate::text("Score:", 50, 50);
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crate::custom_text(self.score_buf, width, 70 - (width / 2) as i32 * 8, 60);
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crate::text(b"Press \x81 to restart", 10, 70);
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}
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} else {
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if self.lives > 0 {
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crate::text("99999999999999", 160 - 10 * 8, 0);
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} else {
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crate::text("GAME OVER", 40, 40);
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crate::text("Score:", 50, 50);
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crate::text("99999999999999", 70 - 7 * 8, 60);
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crate::text(b"Press \x81 to restart", 10, 70);
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}
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}
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}
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}
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