stephenseo/LD53
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Impl basic "game" (kind of WIP)

Browse source
This commit is contained in:
Stephen Seo 2023-04-29 15:49:47 +09:00
parent 4602f5f868
commit b2cdf8f55d
2 changed files with 112 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
src/sprites.rs
View file

@ -122,25 +122,6 @@ pub const HOUSE1: [u8; 252] = [
0xa8, 0xa0, 0xa0, 0x0a, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
];
// box
pub const BOX_WIDTH: u32 = 28;
pub const BOX_HEIGHT: u32 = 28;
pub const BOX_FLAGS: u32 = 1; // BLIT_2BPP
pub const BOX: [u8; 196] = [
0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xa0, 0x00,
0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68,
0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00,
0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0,
0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00,
0x68, 0x00, 0x00, 0x1a, 0xa5, 0x55, 0x55, 0x69, 0x55, 0x55, 0x5a, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a,
0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00,
0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68,
0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00,
0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa0, 0x00, 0x00, 0x68, 0x00, 0x00, 0x1a, 0xa5,
0x55, 0x55, 0x69, 0x55, 0x55, 0x5a, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa,
];
// plant
pub const PLANT_WIDTH: u32 = 12;
pub const PLANT_HEIGHT: u32 = 10;

121
src/world.rs
View file

@ -2,17 +2,14 @@ use crate::sprites::*;
use tinyrand::{Rand, StdRand};
const CAR_ANIM_FRAMES: u8 = 10;
const BOX_INTERP_RATE: f32 = 0.01f32;
const MOVE_RATE: f32 = 1f32;
const MULTIPLIER_INC_RATE: f32 = 0.04f32;
const HOUSE_FRAMES: u32 = 180;
const HOUSE_RANGE: f32 = 90f32;
pub struct World {
car_state: bool,
car_frames: u8,
// sx, sy, ex, ey, interp, interp-type
// interp-type:
// - 0 linear
// - 1 squared
box_pos: Option<(f32, f32, f32, f32, f32, u8)>,
rand: StdRand,
street_offset: f32,
shrubs: [Option<(f32, f32)>; 8],
@ -21,6 +18,11 @@ pub struct World {
// - 0 broken
// - 1 fixed
house: Option<(f32, u8)>,
house_frames: u32,
is_in_range: bool,
score: u64,
rate_multiplier: f32,
status_text: Option<(&'static str, u32)>,
}
impl World {
@ -28,16 +30,25 @@ impl World {
World {
car_state: false,
car_frames: 0,
box_pos: None,
rand: StdRand::default(),
street_offset: 0.0f32,
shrubs: [None, None, None, None, None, None, None, None],
house: None,
house_frames: 0,
is_in_range: false,
score: 0,
rate_multiplier: 1f32,
status_text: None,
}
}
pub fn get_move_rate(&self) -> f32 {
MOVE_RATE * self.rate_multiplier
}
pub fn update(&mut self) {
let gamepad = unsafe { *crate::GAMEPAD1 };
let mouse = unsafe { *crate::MOUSE_BUTTONS };
self.car_frames += 1;
if self.car_frames > CAR_ANIM_FRAMES {
@ -49,18 +60,19 @@ impl World {
}
}
self.street_offset -= MOVE_RATE;
self.street_offset -= self.get_move_rate();
if self.street_offset <= -45f32 {
self.street_offset += 45f32;
}
let mut empty_shrub_exists: Option<usize> = None;
let move_rate = self.get_move_rate();
for (idx, shrub) in self.shrubs.iter_mut().enumerate() {
if let Some((x, _y)) = shrub {
if *x < -(PLANT_WIDTH as f32) {
shrub.take();
} else {
*x -= MOVE_RATE;
*x -= move_rate;
}
} else {
empty_shrub_exists = Some(idx);
@ -71,6 +83,47 @@ impl World {
self.shrubs[empty_shrub_exists.unwrap()] =
Some((180f32, (self.rand.next_u16() % 80 + 60) as f32));
}
if self.house.is_none() {
self.house_frames += 1;
if self.house_frames > HOUSE_FRAMES {
self.house_frames = 0;
self.house = Some((170f32, 0));
}
} else {
self.house.as_mut().unwrap().0 -= self.get_move_rate();
let pos_ref: &f32 = &self.house.as_ref().unwrap().0;
let state_ref: &u8 = &self.house.as_ref().unwrap().1;
if *state_ref == 0 && *pos_ref < HOUSE_RANGE && *pos_ref >= 0f32 {
self.is_in_range = true;
} else if *pos_ref < -(HOUSE0_WIDTH as f32) {
self.house.take();
self.is_in_range = false;
} else {
if self.is_in_range {
self.rate_multiplier = 1f32;
self.status_text = Some(("Slow down!", 80));
}
self.is_in_range = false;
}
}
if self.is_in_range
&& ((gamepad & crate::BUTTON_1) != 0 || (mouse & crate::MOUSE_LEFT) != 0)
{
self.is_in_range = false;
self.house.as_mut().unwrap().1 = 1;
self.score += 1;
self.rate_multiplier += MULTIPLIER_INC_RATE;
self.status_text = Some(("Speed up!", 80));
}
if let Some((_, t)) = &mut self.status_text {
*t -= 1;
if *t == 0 {
self.status_text.take();
}
}
}
pub fn draw(&mut self) {
@ -103,10 +156,60 @@ impl World {
}
}
if let Some((x, state)) = self.house {
match state {
0 => crate::blit(
&HOUSE1,
x.round() as i32,
30 + HOUSE0_HEIGHT as i32 - HOUSE1_HEIGHT as i32,
HOUSE1_WIDTH,
HOUSE1_HEIGHT,
HOUSE1_FLAGS,
),
1 => crate::blit(
&HOUSE0,
x.round() as i32,
30,
HOUSE0_WIDTH,
HOUSE0_HEIGHT,
HOUSE0_FLAGS,
),
_ => (),
}
}
if self.car_state {
crate::blit(&CAR0, 10, 103, CAR0_WIDTH, CAR0_HEIGHT, CAR0_FLAGS);
} else {
crate::blit(&CAR1, 10, 103, CAR1_WIDTH, CAR1_HEIGHT, CAR1_FLAGS);
}
if self.is_in_range {
unsafe {
*crate::DRAW_COLORS = 0x1;
}
crate::text("Tap or Press X!", 5, 5);
}
unsafe {
*crate::DRAW_COLORS = 0x1;
}
if let Some((s, t)) = self.status_text {
if (t / 10) % 2 == 0 {
crate::text(s, 20, 30);
}
}
let mut width = 0;
let mut temp = self.score;
while temp > 0 {
temp /= 10;
width += 1;
}
if width == 0 {
width = 1;
}
crate::text(format!("{}", self.score), 160 - width * 7, 0);
}
}