veloren/world/examples/view.rs

83 lines
2.4 KiB
Rust

use std::ops::{Add, Mul, Sub};
use vek::*;
use veloren_world::{sim::WorldOpts, util::Sampler, World};
const W: usize = 640;
const H: usize = 480;
fn main() {
let threadpool = rayon::ThreadPoolBuilder::new().build().unwrap();
let (world, index) = World::generate(
0,
WorldOpts {
seed_elements: true,
..WorldOpts::default()
},
&threadpool,
);
let index = index.as_index_ref();
let mut win =
minifb::Window::new("World Viewer", W, H, minifb::WindowOptions::default()).unwrap();
let mut focus = Vec2::zero();
let mut gain = 1.0;
let mut scale = 4;
while win.is_open() {
let mut buf = vec![0; W * H];
for i in 0..W {
for j in 0..H {
let pos = focus + Vec2::new(i as i32, j as i32) * scale;
let sampler = world.sample_blocks(pos >> common::terrain::TERRAIN_CHUNK_BLOCKS_LG as i32, index);
let (alt, place) = sampler
.map(|sampler| {
let sample = sampler.column_gen.get(pos);
(
sample.alt.sub(64.0).add(gain).mul(0.7).clamp(0.0, 255.0) as u8,
sampler.column_gen.sim_chunk.place,
)
})
.unwrap_or((0, None));
let place_color = place
.map(|p| ((p.id() % 256) as u8 * 17, (p.id() % 256) as u8 * 13))
.unwrap_or((0, 0));
buf[j * W + i] = u32::from_le_bytes([place_color.0, place_color.1, alt, alt]);
}
}
let spd = 32;
if win.is_key_down(minifb::Key::W) {
focus.y -= spd * scale;
}
if win.is_key_down(minifb::Key::A) {
focus.x -= spd * scale;
}
if win.is_key_down(minifb::Key::S) {
focus.y += spd * scale;
}
if win.is_key_down(minifb::Key::D) {
focus.x += spd * scale;
}
if win.is_key_down(minifb::Key::Q) {
gain += 10.0;
}
if win.is_key_down(minifb::Key::E) {
gain -= 10.0;
}
if win.is_key_down(minifb::Key::R) {
scale += 6;
}
if win.is_key_down(minifb::Key::F) {
scale -= 6;
}
win.update_with_buffer(&buf, W, H).unwrap();
}
}