object struct

This commit is contained in:
bronku 2026-02-16 01:44:44 +01:00
parent bdc051633d
commit 713c5fc67b
3 changed files with 51 additions and 37 deletions

View file

@ -1,19 +1,21 @@
mod config;
mod object;
mod vec2;
mod vec3;
use config::{WINDOW_HEIGHT, WINDOW_WIDTH};
use config::*;
use object::*;
use raylib::prelude::*;
use vec3::*;
fn main() {
let (mut rl, thread) = raylib::init().size(WINDOW_WIDTH, WINDOW_HEIGHT).build();
let mut c = CUBE.clone();
move_by(&mut c, &Vec3(0.0, 0.0, 2.0));
let mut c = new_cube();
c.move_by(&Vec3(0.0, 0.0, 2.0));
while !rl.window_should_close() {
let mut d = rl.begin_drawing(&thread);
draw_object(&mut d, &c);
c.draw_object(&mut d);
d.clear_background(Color::WHITE);
}
}

44
src/object.rs Normal file
View file

@ -0,0 +1,44 @@
use crate::Vec3;
use raylib::prelude::*;
#[derive(Debug, Clone)]
pub struct Object {
indices: Vec<Vec3>,
}
pub fn new_cube() -> Object {
Object {
indices: vec![
Vec3(-0.5, -0.5, -0.5),
Vec3(0.5, -0.5, -0.5),
Vec3(0.5, 0.5, -0.5),
Vec3(-0.5, 0.5, -0.5),
Vec3(-0.5, -0.5, 0.5),
Vec3(0.5, -0.5, 0.5),
Vec3(0.5, 0.5, 0.5),
Vec3(-0.5, 0.5, 0.5),
],
}
}
fn draw_point(d: &mut RaylibDrawHandle, pos: &Vec3) {
const POINT_SIZE: i32 = 3;
let (window_x, window_y) = pos.to_screen_space();
d.draw_rectangle(window_x, window_y, POINT_SIZE, POINT_SIZE, Color::RED);
}
impl Object {
pub fn draw_object(&self, d: &mut RaylibDrawHandle) {
for point in &self.indices {
draw_point(d, point)
}
}
pub fn move_by(&mut self, delta_pos: &Vec3) {
for point in &mut self.indices {
(point).0 += delta_pos.0;
(point).1 += delta_pos.1;
(point).2 += delta_pos.2;
}
}
}

View file

@ -1,11 +1,10 @@
use crate::vec2::*;
use raylib::prelude::*;
#[derive(Clone, Copy, Debug)]
pub struct Vec3(pub f64, pub f64, pub f64);
impl Vec3 {
fn to_screen_space(&self) -> (i32, i32) {
pub fn to_screen_space(&self) -> (i32, i32) {
const FOCAL_LENGTH: f64 = 1.0;
let camera_pos = Vec2(
FOCAL_LENGTH * self.0 / self.2,
@ -14,34 +13,3 @@ impl Vec3 {
return camera_pos.to_screen_space();
}
}
fn draw_point(d: &mut RaylibDrawHandle, pos: &Vec3) {
const POINT_SIZE: i32 = 3;
let (window_x, window_y) = pos.to_screen_space();
d.draw_rectangle(window_x, window_y, POINT_SIZE, POINT_SIZE, Color::RED);
}
pub fn draw_object(d: &mut RaylibDrawHandle, points: &[Vec3]) {
for point in points {
draw_point(d, point)
}
}
pub fn move_by(points: &mut [Vec3], delta_pos: &Vec3) {
for point in points {
(*point).0 += delta_pos.0;
(*point).1 += delta_pos.1;
(*point).2 += delta_pos.2;
}
}
pub const CUBE: [Vec3; 8] = [
Vec3(-0.5, -0.5, -0.5),
Vec3(0.5, -0.5, -0.5),
Vec3(0.5, 0.5, -0.5),
Vec3(-0.5, 0.5, -0.5),
Vec3(-0.5, -0.5, 0.5),
Vec3(0.5, -0.5, 0.5),
Vec3(0.5, 0.5, 0.5),
Vec3(-0.5, 0.5, 0.5),
];