mirror of
https://github.com/Mercantec-GHC/h5-projekt-mst.git
synced 2026-08-27 05:37:39 +02:00
add 3d math test simulator
This commit is contained in:
parent
8623764604
commit
ff878bf068
1
simul/.gitignore
vendored
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1
simul/.gitignore
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target/
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66
simul/Cargo.lock
generated
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66
simul/Cargo.lock
generated
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 4
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[[package]]
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name = "bitflags"
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version = "2.11.0"
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[[package]]
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[[package]]
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name = "sdl3"
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"bitflags",
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"sdl3-sys",
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"sdl3-ttf-sys",
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[[package]]
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[[package]]
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name = "simul"
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version = "0.1.0"
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dependencies = [
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"sdl3",
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7
simul/Cargo.toml
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7
simul/Cargo.toml
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[package]
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[dependencies]
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202
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202
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202
simul/inputs_still.csv
Normal file
202
simul/inputs_still.csv
Normal file
@ -0,0 +1,202 @@
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|
||||
40000,0.0001,-0.0024,-1.0065,0.1261,-0.0171,0.0211
|
||||
40000,-0.0034,0.0025,-1.0060,0.0956,-0.0171,0.0592
|
||||
40000,0.0032,-0.0043,-0.9979,-0.0037,0.0974,0.0440
|
||||
40000,0.0003,0.0018,-1.0023,-0.0418,-0.0247,-0.1240
|
||||
40000,0.0027,-0.0012,-1.0006,0.0269,-0.0095,-0.1087
|
||||
40000,0.0015,-0.0009,-0.9911,0.0269,-0.0247,0.0058
|
||||
40000,-0.0012,-0.0014,-0.9987,0.0269,0.0592,0.2730
|
||||
40000,-0.0056,-0.0004,-1.0026,0.0803,-0.0247,-0.0476
|
||||
40000,0.0032,0.0076,-0.9965,-0.1945,0.0287,-0.1087
|
||||
40000,0.0010,0.0025,-0.9889,-0.1334,0.0287,-0.2079
|
||||
40000,0.0008,-0.0014,-0.9933,-0.0953,0.1737,-0.1698
|
||||
40000,-0.0004,-0.0031,-0.9931,0.0803,0.0974,-0.0629
|
||||
40000,-0.0007,-0.0016,-0.9989,-0.0495,-0.0705,0.0211
|
||||
40000,0.0015,-0.0058,-0.9979,0.1261,0.0974,-0.0782
|
||||
40000,0.0081,-0.0085,-1.0067,0.1108,-0.0476,0.0592
|
||||
40000,-0.0031,0.0042,-0.9994,-0.0113,-0.0018,-0.0476
|
||||
40000,0.0008,-0.0048,-0.9970,-0.0266,0.0363,-0.0171
|
||||
40000,-0.0014,0.0013,-0.9972,0.0116,-0.0934,0.0440
|
||||
40000,0.0005,0.0023,-0.9960,0.0345,-0.0247,-0.1240
|
||||
40000,0.0049,0.0003,-0.9948,0.0803,-0.0018,-0.2003
|
||||
40000,0.0037,-0.0014,-0.9992,0.1872,-0.0858,-0.2385
|
||||
40000,-0.0009,-0.0014,-1.0045,0.1490,-0.0858,-0.1163
|
||||
40000,-0.0004,-0.0004,-1.0104,-0.0953,0.1127,-0.0400
|
||||
40000,-0.0009,0.0047,-1.0036,-0.0113,-0.0858,0.0058
|
||||
40000,-0.0017,-0.0009,-1.0004,-0.0037,0.0440,-0.1850
|
||||
40000,0.0047,0.0018,-0.9914,-0.0037,0.0592,-0.0782
|
||||
40000,0.0047,0.0047,-0.9936,-0.1563,0.0745,-0.2079
|
||||
40000,0.0054,0.0008,-0.9955,0.0574,0.0898,-0.0553
|
||||
40000,-0.0009,0.0010,-0.9933,-0.0189,0.1737,-0.1621
|
||||
40000,0.0042,-0.0055,-1.0004,0.0574,-0.0247,-0.1240
|
||||
40000,0.0008,-0.0016,-0.9943,-0.0647,0.0974,0.1356
|
||||
40000,-0.0012,-0.0058,-0.9931,0.0956,0.1050,-0.2079
|
||||
40000,0.0008,0.0032,-1.0036,0.0345,0.1356,-0.0018
|
||||
40000,0.0013,-0.0029,-0.9989,-0.0647,0.0821,0.0516
|
||||
40000,0.0013,-0.0031,-0.9921,-0.0189,0.0898,-0.0171
|
||||
40000,0.0013,-0.0021,-0.9938,0.0192,0.0363,-0.1698
|
||||
40000,-0.0007,0.0020,-1.0045,-0.0495,0.1127,-0.0934
|
||||
|
||||
|
48
simul/src/m3x3.rs
Normal file
48
simul/src/m3x3.rs
Normal file
@ -0,0 +1,48 @@
|
||||
use std::ops::Mul;
|
||||
|
||||
use crate::v3::V3;
|
||||
|
||||
pub struct M3x3([f64; 9]);
|
||||
|
||||
impl M3x3 {
|
||||
#[rustfmt::skip]
|
||||
pub fn new_rotate_x(angle: f64) -> Self {
|
||||
Self([
|
||||
1.0, 0.0, 0.0,
|
||||
0.0, f64::cos(angle), -f64::sin(angle),
|
||||
0.0, f64::sin(angle), f64::cos(angle),
|
||||
])
|
||||
}
|
||||
|
||||
#[rustfmt::skip]
|
||||
pub fn new_rotate_y(angle: f64) -> Self {
|
||||
Self([
|
||||
f64::cos(angle), 0.0, f64::sin(angle),
|
||||
0.0, 1.0, 0.0,
|
||||
-f64::sin(angle), 0.0, f64::cos(angle),
|
||||
])
|
||||
}
|
||||
|
||||
#[rustfmt::skip]
|
||||
pub fn new_rotate_z(angle: f64) -> Self {
|
||||
Self([
|
||||
f64::cos(angle), -f64::sin(angle), 0.0,
|
||||
f64::sin(angle), f64::cos(angle), 0.0,
|
||||
0.0, 0.0, 1.0,
|
||||
])
|
||||
}
|
||||
}
|
||||
|
||||
impl Mul<V3> for M3x3 {
|
||||
type Output = V3;
|
||||
|
||||
fn mul(self, rhs: V3) -> Self::Output {
|
||||
let V3(x, y, z) = rhs;
|
||||
let [xx, xy, xz, yx, yy, yz, zx, zy, zz] = self.0;
|
||||
V3(
|
||||
x * xx + y * xy + z * xz,
|
||||
x * yx + y * yy + z * yz,
|
||||
x * zx + y * zy + z * zz,
|
||||
)
|
||||
}
|
||||
}
|
||||
47
simul/src/main.rs
Normal file
47
simul/src/main.rs
Normal file
@ -0,0 +1,47 @@
|
||||
#![allow(unused)]
|
||||
|
||||
use crate::{
|
||||
scene::Scene,
|
||||
tri2::Tri2,
|
||||
tri3::Tri3,
|
||||
v2::V2,
|
||||
v3::V3,
|
||||
window::{Color, Event, Keycode, Renderer, Window},
|
||||
};
|
||||
|
||||
mod m3x3;
|
||||
mod scene;
|
||||
mod tri2;
|
||||
mod tri3;
|
||||
mod v2;
|
||||
mod v3;
|
||||
mod window;
|
||||
|
||||
pub struct App {}
|
||||
|
||||
impl<R: Renderer> window::App<R> for App {
|
||||
fn update(&mut self, delta_time: std::time::Duration) {}
|
||||
|
||||
fn render(&self, r: &mut R) {
|
||||
r.draw_line(V2(0.0, 0.0), V2(0.6, 0.2), Color::RED);
|
||||
|
||||
let mut scene = Scene::new();
|
||||
|
||||
scene.draw_triangle(
|
||||
Tri3(V3(0.0, 0.0, 0.0), V3(0.3, 0.3, 0.0), V3(0.3, 0.0, 0.0)),
|
||||
Color::GREEN,
|
||||
Color::BLACK,
|
||||
);
|
||||
|
||||
scene.render(r, V3(0.0, 0.0, -1.0));
|
||||
}
|
||||
|
||||
fn event(&mut self, event: Event) {}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let mut window = Window::new();
|
||||
let mut app = App {};
|
||||
|
||||
window.run(&mut app);
|
||||
}
|
||||
59
simul/src/scene.rs
Normal file
59
simul/src/scene.rs
Normal file
@ -0,0 +1,59 @@
|
||||
use crate::{
|
||||
tri2::Tri2,
|
||||
tri3::Tri3,
|
||||
v3::V3,
|
||||
window::{Color, Renderer},
|
||||
};
|
||||
|
||||
pub struct Scene {
|
||||
tris: Vec<(Tri3, Color, Color)>,
|
||||
}
|
||||
|
||||
impl Scene {
|
||||
pub fn new() -> Self {
|
||||
Self { tris: Vec::new() }
|
||||
}
|
||||
|
||||
pub fn render(&self, r: &mut impl Renderer, camera_pos: V3) {
|
||||
let mut indices_with_scores = self
|
||||
.tris
|
||||
.iter()
|
||||
.enumerate()
|
||||
.map(|(i, (tri, ..))| {
|
||||
let mut point_scores = tri.points().map(|p| (camera_pos - p).len());
|
||||
point_scores.sort_by(|a, b| a.total_cmp(b));
|
||||
|
||||
(i, point_scores[0])
|
||||
})
|
||||
.rev()
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
indices_with_scores.sort_by(|a, b| b.1.total_cmp(&a.1));
|
||||
|
||||
for (i, _) in indices_with_scores {
|
||||
let (tri3, outline_color, fill_color) = &self.tris[i];
|
||||
|
||||
// if !(tri3.0.2 >= -1.0 && tri3.1.2 >= -1.0 && tri3.2.2 >= -1.0) {
|
||||
// continue;
|
||||
// }
|
||||
|
||||
// if tri3.normal().dot(tri3.0 - camera_pos) >= 0.0 {
|
||||
// continue;
|
||||
// }
|
||||
//
|
||||
println!("{tri3:?}");
|
||||
|
||||
let tri2 = tri3.project_2d(camera_pos);
|
||||
|
||||
println!("{tri2:?}");
|
||||
|
||||
r.draw_triangles(&[tri2], *fill_color);
|
||||
r.draw_line(tri2.0, tri2.1, *outline_color);
|
||||
r.draw_line(tri2.0, tri2.2, *outline_color);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn draw_triangle(&mut self, tri: Tri3, outline_color: Color, fill_color: Color) {
|
||||
self.tris.push((tri, outline_color, fill_color));
|
||||
}
|
||||
}
|
||||
4
simul/src/tri2.rs
Normal file
4
simul/src/tri2.rs
Normal file
@ -0,0 +1,4 @@
|
||||
use crate::v2::V2;
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Tri2(pub V2, pub V2, pub V2);
|
||||
46
simul/src/tri3.rs
Normal file
46
simul/src/tri3.rs
Normal file
@ -0,0 +1,46 @@
|
||||
use crate::{tri2::Tri2, v3::V3};
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Tri3(pub V3, pub V3, pub V3);
|
||||
|
||||
impl Tri3 {
|
||||
pub fn init(v: V3) -> Self {
|
||||
Self(v, v, v)
|
||||
}
|
||||
|
||||
pub fn map<F: Fn(V3) -> V3>(&self, func: F) -> Self {
|
||||
Self(func(self.0), func(self.1), func(self.2))
|
||||
}
|
||||
|
||||
pub fn zip<F: Fn(V3, V3) -> V3>(&self, rhs: Tri3, func: F) -> Self {
|
||||
Self(
|
||||
func(self.0, rhs.0),
|
||||
func(self.1, rhs.1),
|
||||
func(self.2, rhs.2),
|
||||
)
|
||||
}
|
||||
|
||||
pub fn rotate(&self, rot: V3) -> Self {
|
||||
self.map(|v| v.rotate(rot))
|
||||
}
|
||||
|
||||
pub fn project_2d(&self, camera_pos: V3) -> Tri2 {
|
||||
Tri2(
|
||||
self.0.project_2d(camera_pos),
|
||||
self.1.project_2d(camera_pos),
|
||||
self.2.project_2d(camera_pos),
|
||||
)
|
||||
}
|
||||
|
||||
pub fn translate(&self, offset: V3) -> Self {
|
||||
self.map(|v| v + offset)
|
||||
}
|
||||
|
||||
pub fn points(&self) -> [V3; 3] {
|
||||
[self.0, self.1, self.2]
|
||||
}
|
||||
|
||||
pub fn normal(&self) -> V3 {
|
||||
(self.1 - self.0).cross(self.2 - self.1)
|
||||
}
|
||||
}
|
||||
81
simul/src/v2.rs
Normal file
81
simul/src/v2.rs
Normal file
@ -0,0 +1,81 @@
|
||||
use std::ops::{Add, Div, Mul, Neg, Sub};
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct V2(pub f64, pub f64);
|
||||
|
||||
impl V2 {
|
||||
pub fn init(v: f64) -> Self {
|
||||
Self(v, v)
|
||||
}
|
||||
|
||||
pub fn map<F: Fn(f64) -> f64>(&self, func: F) -> Self {
|
||||
Self(func(self.0), func(self.1))
|
||||
}
|
||||
|
||||
pub fn zip<F: Fn(f64, f64) -> f64>(&self, rhs: Self, func: F) -> Self {
|
||||
Self(func(self.0, rhs.0), func(self.1, rhs.1))
|
||||
}
|
||||
|
||||
pub fn reduce<F: Fn(f64, f64) -> f64>(&self, initial: f64, func: F) -> f64 {
|
||||
let acc = initial;
|
||||
let acc = func(acc, self.0);
|
||||
let acc = func(acc, self.1);
|
||||
acc
|
||||
}
|
||||
|
||||
pub fn normal(&self) -> V2 {
|
||||
V2(-self.1, self.0)
|
||||
}
|
||||
|
||||
pub fn translate(&self, trans: V2) -> V2 {
|
||||
*self + trans
|
||||
}
|
||||
|
||||
pub fn len(&self) -> f64 {
|
||||
self.map(|v| v.powi(2)).reduce(0.0, |acc, v| acc + v)
|
||||
}
|
||||
|
||||
pub fn unit(&self) -> V2 {
|
||||
*self / self.len()
|
||||
}
|
||||
}
|
||||
|
||||
impl Add for V2 {
|
||||
type Output = V2;
|
||||
|
||||
fn add(self, rhs: V2) -> Self::Output {
|
||||
self.zip(rhs, |a, b| a + b)
|
||||
}
|
||||
}
|
||||
|
||||
impl Sub for V2 {
|
||||
type Output = V2;
|
||||
|
||||
fn sub(self, rhs: V2) -> Self::Output {
|
||||
self.zip(rhs, |a, b| a - b)
|
||||
}
|
||||
}
|
||||
|
||||
impl Mul<f64> for V2 {
|
||||
type Output = V2;
|
||||
|
||||
fn mul(self, rhs: f64) -> Self::Output {
|
||||
self.map(|v| v * rhs)
|
||||
}
|
||||
}
|
||||
|
||||
impl Div<f64> for V2 {
|
||||
type Output = V2;
|
||||
|
||||
fn div(self, rhs: f64) -> Self::Output {
|
||||
self.map(|v| v / rhs)
|
||||
}
|
||||
}
|
||||
|
||||
impl Neg for V2 {
|
||||
type Output = V2;
|
||||
|
||||
fn neg(self) -> Self::Output {
|
||||
V2::init(0.0) - self
|
||||
}
|
||||
}
|
||||
106
simul/src/v3.rs
Normal file
106
simul/src/v3.rs
Normal file
@ -0,0 +1,106 @@
|
||||
use std::ops::{Add, Div, Mul, Neg, Sub};
|
||||
|
||||
use crate::{m3x3::M3x3, v2::V2};
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct V3(pub f64, pub f64, pub f64);
|
||||
|
||||
impl V3 {
|
||||
pub fn init(v: f64) -> Self {
|
||||
Self(v, v, v)
|
||||
}
|
||||
|
||||
pub fn map<F: Fn(f64) -> f64>(&self, func: F) -> Self {
|
||||
Self(func(self.0), func(self.1), func(self.2))
|
||||
}
|
||||
|
||||
pub fn zip<F: Fn(f64, f64) -> f64>(&self, rhs: V3, func: F) -> Self {
|
||||
Self(
|
||||
func(self.0, rhs.0),
|
||||
func(self.1, rhs.1),
|
||||
func(self.2, rhs.2),
|
||||
)
|
||||
}
|
||||
|
||||
pub fn reduce<F: Fn(f64, f64) -> f64>(&self, initial: f64, func: F) -> f64 {
|
||||
let acc = initial;
|
||||
let acc = func(acc, self.0);
|
||||
let acc = func(acc, self.1);
|
||||
let acc = func(acc, self.0);
|
||||
acc
|
||||
}
|
||||
|
||||
pub fn cross(&self, rhs: Self) -> Self {
|
||||
let V3(ax, ay, az) = self;
|
||||
let V3(bx, by, bz) = rhs;
|
||||
V3(ay * bz - az * by, az * bx - ax * bz, ax * by - ay * bx)
|
||||
}
|
||||
|
||||
pub fn rotate(&self, rot: Self) -> Self {
|
||||
M3x3::new_rotate_z(rot.2)
|
||||
* (M3x3::new_rotate_y(rot.1) * (M3x3::new_rotate_x(rot.0) * *self))
|
||||
}
|
||||
|
||||
pub fn project_2d(&self, camera_pos: V3) -> V2 {
|
||||
let c = camera_pos;
|
||||
let d = *self - c;
|
||||
let e = V3(0.0, 0.0, 0.0) - c;
|
||||
V2(e.2 / d.2 * d.0 + e.0, e.2 / d.2 * d.1 + e.1)
|
||||
}
|
||||
|
||||
pub fn dot(&self, rhs: Self) -> f64 {
|
||||
self.zip(rhs, |a, b| a * b).reduce(0.0, |acc, v| acc + v)
|
||||
}
|
||||
|
||||
pub fn translate(&self, trans: V3) -> V3 {
|
||||
*self + trans
|
||||
}
|
||||
|
||||
pub fn len(&self) -> f64 {
|
||||
self.map(|v| v.powi(2)).reduce(0.0, |acc, v| acc + v)
|
||||
}
|
||||
|
||||
pub fn unit(&self) -> V3 {
|
||||
*self / self.len()
|
||||
}
|
||||
}
|
||||
|
||||
impl Add for V3 {
|
||||
type Output = V3;
|
||||
|
||||
fn add(self, rhs: V3) -> Self::Output {
|
||||
self.zip(rhs, |a, b| a + b)
|
||||
}
|
||||
}
|
||||
|
||||
impl Sub for V3 {
|
||||
type Output = V3;
|
||||
|
||||
fn sub(self, rhs: V3) -> Self::Output {
|
||||
self.zip(rhs, |a, b| a - b)
|
||||
}
|
||||
}
|
||||
|
||||
impl Mul<f64> for V3 {
|
||||
type Output = V3;
|
||||
|
||||
fn mul(self, rhs: f64) -> Self::Output {
|
||||
self.map(|v| v * rhs)
|
||||
}
|
||||
}
|
||||
|
||||
impl Div<f64> for V3 {
|
||||
type Output = V3;
|
||||
|
||||
fn div(self, rhs: f64) -> Self::Output {
|
||||
self.map(|v| v / rhs)
|
||||
}
|
||||
}
|
||||
|
||||
impl Neg for V3 {
|
||||
type Output = V3;
|
||||
|
||||
fn neg(self) -> Self::Output {
|
||||
V3::init(0.0) - self
|
||||
}
|
||||
}
|
||||
164
simul/src/window.rs
Normal file
164
simul/src/window.rs
Normal file
@ -0,0 +1,164 @@
|
||||
use std::time::{Duration, Instant};
|
||||
|
||||
use sdl3::{
|
||||
Sdl,
|
||||
event::Event as SdlEvent,
|
||||
render::{Canvas, FPoint, FRect, Vertex, VertexIndices},
|
||||
video::Window as SdlWindow,
|
||||
};
|
||||
|
||||
pub use sdl3::{keyboard::Keycode, pixels::Color};
|
||||
|
||||
use crate::{tri2::Tri2, v2::V2};
|
||||
|
||||
pub static WIDTH: f64 = 1280.0;
|
||||
pub static HEIGHT: f64 = 720.0;
|
||||
|
||||
pub trait App<R: Renderer> {
|
||||
fn update(&mut self, delta_time: Duration);
|
||||
fn render(&self, r: &mut R);
|
||||
fn event(&mut self, event: Event);
|
||||
}
|
||||
|
||||
pub trait Renderer {
|
||||
fn draw_rect(&mut self, pos: V2, size: V2, color: Color);
|
||||
fn draw_line(&mut self, from: V2, to: V2, color: Color);
|
||||
fn draw_triangles(&mut self, tris: &[Tri2], color: Color);
|
||||
}
|
||||
|
||||
pub enum Event {
|
||||
KeyDown(Keycode),
|
||||
KeyUp(Keycode),
|
||||
}
|
||||
|
||||
pub struct Window {
|
||||
sdl_context: Sdl,
|
||||
canvas: Canvas<SdlWindow>,
|
||||
}
|
||||
|
||||
impl Window {
|
||||
pub fn new() -> Self {
|
||||
let sdl_context = sdl3::init().unwrap();
|
||||
let video_subsystem = sdl_context.video().unwrap();
|
||||
let window = video_subsystem
|
||||
.window("Game", WIDTH as u32, HEIGHT as u32)
|
||||
.position_centered()
|
||||
.build()
|
||||
.unwrap();
|
||||
let mut canvas = window.into_canvas();
|
||||
|
||||
canvas.set_draw_color(Color::BLACK);
|
||||
canvas.clear();
|
||||
canvas.present();
|
||||
|
||||
Self {
|
||||
sdl_context,
|
||||
canvas,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn run(&mut self, app: &mut impl App<Self>) {
|
||||
let mut event_pump = self.sdl_context.event_pump().unwrap();
|
||||
|
||||
let mut time_before = Instant::now();
|
||||
let time_per_frame = Duration::from_secs_f64(1.0 / 60.0);
|
||||
let mut print_fps_timer = Instant::now();
|
||||
let mut fps_count = 0;
|
||||
|
||||
'running: loop {
|
||||
for event in event_pump.poll_iter() {
|
||||
match event {
|
||||
SdlEvent::Quit { .. }
|
||||
| SdlEvent::KeyDown {
|
||||
keycode: Some(Keycode::Escape),
|
||||
..
|
||||
} => break 'running,
|
||||
SdlEvent::KeyDown {
|
||||
keycode: Some(key), ..
|
||||
} => app.event(Event::KeyDown(key)),
|
||||
SdlEvent::KeyUp {
|
||||
keycode: Some(key), ..
|
||||
} => app.event(Event::KeyUp(key)),
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
|
||||
let time_now = Instant::now();
|
||||
let delta_time = time_now - time_before;
|
||||
time_before = time_now;
|
||||
app.update(delta_time);
|
||||
|
||||
self.canvas.set_draw_color(Color::RGB(20, 20, 20));
|
||||
self.canvas.clear();
|
||||
app.render(self);
|
||||
self.canvas.present();
|
||||
|
||||
fps_count += 1;
|
||||
if (time_now - print_fps_timer).as_secs_f64() > 1.0 {
|
||||
println!("fps: {fps_count}");
|
||||
fps_count = 0;
|
||||
print_fps_timer = time_now;
|
||||
}
|
||||
if delta_time < time_per_frame {
|
||||
std::thread::sleep(time_per_frame - delta_time);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn scale_w2s(&self, v: V2) -> V2 {
|
||||
let factor = WIDTH / 2.0;
|
||||
V2(v.0 * factor, v.1 * factor)
|
||||
}
|
||||
fn translate_w2s(&self, v: V2) -> V2 {
|
||||
let aspect_ratio_h2w = HEIGHT / WIDTH;
|
||||
let middle = V2(1.0, 1.0 * aspect_ratio_h2w);
|
||||
V2(v.0 + middle.0, middle.1 - v.1)
|
||||
}
|
||||
fn point_w2s(&self, v: V2) -> V2 {
|
||||
self.scale_w2s(self.translate_w2s(v))
|
||||
}
|
||||
}
|
||||
|
||||
impl Renderer for Window {
|
||||
fn draw_rect(&mut self, pos: V2, size: V2, color: Color) {
|
||||
let size = self.scale_w2s(size);
|
||||
let pos = self.point_w2s(pos).translate(V2(0.0, -size.0));
|
||||
self.canvas.set_draw_color(color);
|
||||
self.canvas
|
||||
.fill_rect(FRect::new(pos.0 as _, pos.1 as _, size.0 as _, size.1 as _))
|
||||
.unwrap();
|
||||
}
|
||||
fn draw_line(&mut self, from: V2, to: V2, color: Color) {
|
||||
let n = (to - from).normal().unit() * 0.0005;
|
||||
|
||||
let p0 = from - n;
|
||||
let p1 = to - n;
|
||||
let p2 = from + n;
|
||||
let p3 = to + n;
|
||||
|
||||
self.draw_triangles(&[Tri2(p0, p1, p2), Tri2(p3, p2, p1)], color);
|
||||
}
|
||||
|
||||
fn draw_triangles(&mut self, tris: &[Tri2], color: Color) {
|
||||
let vertices = tris
|
||||
.iter()
|
||||
.flat_map(|t| [t.0, t.1, t.2])
|
||||
.map(|p| self.point_w2s(p))
|
||||
.map(|p| Vertex {
|
||||
position: p.into(),
|
||||
color: color.into(),
|
||||
tex_coord: FPoint::new(0.0, 0.0),
|
||||
})
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
self.canvas
|
||||
.render_geometry(&vertices, None, VertexIndices::Sequential)
|
||||
.unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
impl From<V2> for FPoint {
|
||||
fn from(value: V2) -> Self {
|
||||
FPoint::new(value.0 as _, value.1 as _)
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user