51 lines
1.5 KiB
Rust
51 lines
1.5 KiB
Rust
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// Copyright 2013 The Lmath Developers. For a full listing of the authors,
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// refer to the AUTHORS file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! An example of using perlin noise
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// Noise rendering based off rust/src/test/bench/noise.rs
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extern mod lmath;
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use std::uint::range;
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use lmath::noise::perlin::Perlin;
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use lmath::math::Point2;
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static WIDTH: uint = 100;
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static HEIGHT: uint = 100;
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fn main() {
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let symbols = [" ", "░", "▒", "▓", "█", "█"];
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let mut pixels = [[0f32, ..WIDTH], ..HEIGHT];
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let perlin = Perlin::new::<f32>();
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for range(0, HEIGHT) |y| {
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for range(0, WIDTH) |x| {
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pixels[y][x] = perlin.noise2(
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Point2::new(x as f32 * 0.1f32,
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y as f32 * 0.1f32)
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) * 0.5f32 + 0.5f32;
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};
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};
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for range(0, HEIGHT) |y| {
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for range(0, WIDTH) |x| {
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print(symbols[pixels[y][x] / 0.2f32 as int]);
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}
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println("");
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}
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}
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