WiiDuktape/source/game.js
Fries 123d151c57 add pipes to the game.
they can move! no collision yet.
the numbers still need a bit of tweaking though.
2024-06-24 17:37:38 -07:00

127 lines
3.1 KiB
JavaScript

const PAD_BUTTON_START = 0x1000;
const PAD_BUTTON_A = 0x0100;
const RED_COLOR = wii.rgba(255, 0, 0, 255);
const GREEN_COLOR = wii.rgba(0, 255, 0, 255);
const WHITE_COLOR = wii.rgba(255, 255, 255, 255);
const FALLING_SPEED = 250;
const TERMINAL_VELOCITY_SPEED = 500;
const PIPE_SPAWN_TIME = 4;
const PIPE_MAX_TIME = 5;
/**
* clamps a number to the min and max values.
* @param {number} num
* @param {number} min
* @param {number} max
* @returns a clamped number
*/
function clamp(num, min, max) {
return Math.min(Math.max(num, min), max);
}
function random_range(min, max) {
const minCeiled = Math.ceil(min);
const maxFloored = Math.floor(max);
return Math.floor(Math.random() * (maxFloored - minCeiled) + minCeiled);
}
/** @type {GRRLibTexture} */
globalThis.background = null;
/** @type {DrawableObject} */
globalThis.bird = {
velocity: 0,
position: 0
};
/** @type {GRRLibTexture} */
globalThis.pipe = null;
/** @type {GRRLibTexture} */
globalThis.pipe_flipped = null;
/** @type {Pipe[]} */
globalThis.pipes = [];
/** @type {number} */
globalThis.timer = 0;
function start() {
const background = wii.get_file("background-day.png");
const bird = wii.get_file("yellowbird-midflap.png");
const pipe = wii.get_file("pipe-green.png");
const pipe_flipped = wii.get_file("pipe-green-flipped.png");
globalThis.background = wii.grrlib.load_texture(background);
globalThis.bird.texture = wii.grrlib.load_texture(bird);
globalThis.pipe = wii.grrlib.load_texture(pipe);
globalThis.pipe_flipped = wii.grrlib.load_texture(pipe_flipped);
}
function update_bird() {
const deltatime = wii.get_deltatime();
bird.position -= bird.velocity * deltatime;
bird.velocity = clamp(bird.velocity - (FALLING_SPEED * deltatime), -TERMINAL_VELOCITY_SPEED, TERMINAL_VELOCITY_SPEED);
wii.grrlib.draw_img(0, bird.position, bird.texture, 0, 1, 1, WHITE_COLOR);
}
function create_pipe() {
const top_max = 200;
const top_y = random_range(0, top_max);
wii.grrlib.draw_img(100, -top_y, pipe_flipped, 0, 1, 1, WHITE_COLOR);
wii.grrlib.draw_img(100, top_y + 400, pipe, 0, 1, 1, WHITE_COLOR);
return {
top_y: -top_y,
bottom_y: -top_y + 400,
position: 650,
time_active: 0
}
}
/**
* @param {Pipe} pipe
*/
function update_pipe(pipe) {
if (pipe.time_active >= PIPE_MAX_TIME) {
const index = pipes.indexOf(pipe);
pipes.splice(index, -1);
return;
}
wii.grrlib.draw_img(pipe.position, pipe.top_y, pipe_flipped, 0, 1, 1, WHITE_COLOR);
wii.grrlib.draw_img(pipe.position, pipe.bottom_y, globalThis.pipe, 0, 1, 1, WHITE_COLOR);
pipe.position -= 100 * wii.get_deltatime();
pipe.time_active += wii.get_deltatime();
}
function update() {
const pressed = wii.pad.buttons_down();
if (pressed & PAD_BUTTON_START) {
wii.print("exiting from js");
wii.exit();
}
if (pressed & PAD_BUTTON_A) {
bird.velocity = FALLING_SPEED;
}
if (timer >= PIPE_SPAWN_TIME) {
timer = 0;
}
if (timer == 0) {
pipes.push(create_pipe());
}
wii.grrlib.draw_img(0, 0, background, 0, 1, 1, WHITE_COLOR);
update_bird();
for (var i = 0; i < pipes.length; i++) {
update_pipe(pipes[i]);
}
wii.print("deltatime: " + wii.get_deltatime())
timer += wii.get_deltatime();
}