feat: add asteroids.rs
This commit is contained in:
Ingolf Wagner
parent
b30d687963
commit
3d86835849
5 changed files with 207 additions and 4 deletions
34
pool/asteroids/ship1.svg
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34
pool/asteroids/ship1.svg
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@ -0,0 +1,34 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<svg
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:cc="http://creativecommons.org/ns#"
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xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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xmlns:svg="http://www.w3.org/2000/svg"
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xmlns="http://www.w3.org/2000/svg"
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id="svg8"
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version="1.1"
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viewBox="0 0 12.7 12.7"
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height="48"
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width="48">
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<defs
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id="defs2" />
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<metadata
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id="metadata5">
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<rdf:RDF>
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<cc:Work
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rdf:about="">
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<dc:format>image/svg+xml</dc:format>
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<dc:type
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rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
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<dc:title></dc:title>
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</cc:Work>
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</rdf:RDF>
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</metadata>
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<g
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id="layer1">
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<path
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id="path845"
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d="M 5.9999998,0 2,12 5.9999998,11 10,12 Z"
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style="fill:none;stroke:#000000;stroke-width:0.264583px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" />
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</g>
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</svg>
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After Width: | Height: | Size: 940 B |
34
pool/asteroids/ship2.svg
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34
pool/asteroids/ship2.svg
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@ -0,0 +1,34 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<svg
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:cc="http://creativecommons.org/ns#"
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xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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xmlns:svg="http://www.w3.org/2000/svg"
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xmlns="http://www.w3.org/2000/svg"
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id="svg8"
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version="1.1"
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viewBox="0 0 12.7 12.7"
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height="48"
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width="48">
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<defs
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id="defs2" />
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<metadata
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id="metadata5">
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<rdf:RDF>
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<cc:Work
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rdf:about="">
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<dc:format>image/svg+xml</dc:format>
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<dc:type
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rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
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<dc:title></dc:title>
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</cc:Work>
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</rdf:RDF>
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</metadata>
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<g
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id="layer1">
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<path
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id="path869"
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d="M 5.9999998,0 2,12 3.9058027,11 H 7.9098644 L 10,12 Z"
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style="fill:none;stroke:#000000;stroke-width:0.264583px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" />
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</g>
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</svg>
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After Width: | Height: | Size: 954 B |
34
pool/asteroids/ship3.svg
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34
pool/asteroids/ship3.svg
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@ -0,0 +1,34 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<svg
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:cc="http://creativecommons.org/ns#"
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xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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xmlns:svg="http://www.w3.org/2000/svg"
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xmlns="http://www.w3.org/2000/svg"
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id="svg8"
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version="1.1"
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viewBox="0 0 12.7 12.7"
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height="48"
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width="48">
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<defs
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id="defs2" />
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<metadata
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id="metadata5">
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<rdf:RDF>
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<cc:Work
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rdf:about="">
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<dc:format>image/svg+xml</dc:format>
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<dc:type
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rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
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<dc:title></dc:title>
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</cc:Work>
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</rdf:RDF>
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</metadata>
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<g
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id="layer1">
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<path
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id="path869"
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d="M 5.9999998,0 2,12 3.9058027,9.4125 H 7.9098644 L 10,12 Z"
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style="fill:none;stroke:#000000;stroke-width:0.264583px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" />
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</g>
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</svg>
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After Width: | Height: | Size: 958 B |
91
src/bin/asteroids.rs
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91
src/bin/asteroids.rs
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@ -0,0 +1,91 @@
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use geo::algorithm::intersects::Intersects;
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use geo::algorithm::rotate::Rotate;
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use geo::prelude::Translate;
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use geo::rotate::RotatePoint;
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use geo::{Coordinate, MultiPolygon, Point, Polygon};
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use geo::{LineString};
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use geo_clipper::Clipper;
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use polygon_art::MultiPolygonExt;
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use polygon_art::{load_multipolgon_from_svg, Context};
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use rand::prelude::StdRng;
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use rand::Rng;
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fn main() {
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let mut context = Context::create();
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let mut rng = context.gen_rng();
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let ship_width = 100.;
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let center_point = MultiPolygon(vec![create_asteroid(&mut rng, 20, 2)])
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.scale_to_width(2.5 * ship_width)
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.translate(context.width / 2., context.height / 2.);
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// create asteroid
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let mut asteroids: Vec<MultiPolygon<f64>> = Vec::new();
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for _ in 0..40 {
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let without_orbit = rng.gen_range(40..140) as f64;
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let with_orbit = without_orbit * 1.32;
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let x = rng.gen_range(0..(context.width as i32)) as f64;
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let y = rng.gen_range(0..(context.height as i32)) as f64;
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let asteroid = MultiPolygon(vec![create_asteroid(&mut rng, 20, 15)])
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.scale_to_width(with_orbit)
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.translate(x, y);
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if !center_point.intersects(&asteroid) && asteroids
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.iter()
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.find(|&m| *&m.intersects(&asteroid))
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.is_none()
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{
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asteroids.push(asteroid.scale_to_width(without_orbit));
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}
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if asteroids.len() > 23 {
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break;
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}
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}
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// load ships
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let rotation = rng.gen_range(0..360);
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let ship = load_multipolgon_from_svg("pool/asteroids/ship3.svg")
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.unwrap()
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.scale_to_width(ship_width)
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.translate_center()
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.rotate(rotation as f64);
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context.translate_center();
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context.draw_multipolygon(&ship);
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context.restore();
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// drawing and clipping
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let frame_space = 10.;
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let window = context.frame(frame_space, frame_space, frame_space, frame_space);
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context.draw_polygon(&window);
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for asteroid in asteroids.iter() {
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context.draw_multipolygon(&asteroid.intersection(&window, 100.));
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}
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context.render();
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}
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fn create_asteroid(rng: &mut StdRng, subdivisions: i32, radius_randomization: i32) -> Polygon<f64> {
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let mut asteroid_points: Vec<Point<f64>> = Vec::new();
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for _ in 0..subdivisions {
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let change = rng.gen_range(0..(radius_randomization * 2));
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asteroid_points.push(Point(Coordinate {
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x: 0.0,
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y: 100.0 + (change - radius_randomization) as f64,
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}));
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for point in asteroid_points.iter_mut() {
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let (x, y) = point
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.rotate_around_point(
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360. / subdivisions as f64,
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Point(Coordinate { x: 0., y: 0. }),
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)
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.x_y();
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point.set_x(x);
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point.set_y(y);
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}
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}
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Polygon::new(
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LineString(asteroid_points.iter().map(|point| point.0).collect()),
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Vec::new(),
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)
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}
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@ -1,6 +1,6 @@
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use cairo::Format;
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use cairo::{ImageSurface, SvgSurface};
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use geo_types::{LineString, MultiPolygon, Polygon};
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use geo::{polygon, LineString, MultiPolygon, Polygon};
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use rand::rngs::StdRng;
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use rand::{Rng, SeedableRng};
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@ -22,6 +22,16 @@ pub struct Context {
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}
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impl Context {
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/// generate a frame for the image
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pub fn frame(&mut self, left: f64, bottom: f64, right: f64, top: f64) -> Polygon<f64> {
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polygon![
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(x: left, y: top),
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(x: self.width - right, y: top),
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(x: self.width - right, y: self.height - bottom),
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(x: left , y: self.height - bottom),
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]
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}
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pub fn draw_multipolygon(&self, multi_polygon: &MultiPolygon<f64>) {
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for polygon in multi_polygon.iter() {
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self.draw_polygon(polygon);
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@ -48,10 +58,7 @@ impl Context {
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}
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context.stroke();
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}
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}
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// cairo facades
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impl Context {
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/// restore state which was saved before by the context
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pub fn restore(&self) {
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self.render_container.context().restore();
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@ -81,6 +88,9 @@ impl Context {
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self.render_container.render();
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}
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pub fn gen_rng(&mut self) -> StdRng {
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StdRng::seed_from_u64(self.pseudo_random_number_generator.gen())
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}
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pub fn create() -> Context {
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let opt = Opt::get_command_line_arguments();
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let height = f64::from(opt.height.clone());
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