From a239adb07ab7d83027535151c56fa60b18065761 Mon Sep 17 00:00:00 2001
From: Vinzenz Schroeter <vinzenz.f.s@gmail.com>
Date: Sat, 11 May 2024 17:34:52 +0200
Subject: [PATCH] add example random_brightness

---
 examples/random_brightness/Cargo.lock  | 485 +++++++++++++++++++++++++
 examples/random_brightness/Cargo.toml  |  11 +
 examples/random_brightness/src/main.rs |  59 +++
 3 files changed, 555 insertions(+)
 create mode 100644 examples/random_brightness/Cargo.lock
 create mode 100644 examples/random_brightness/Cargo.toml
 create mode 100644 examples/random_brightness/src/main.rs

diff --git a/examples/random_brightness/Cargo.lock b/examples/random_brightness/Cargo.lock
new file mode 100644
index 0000000..3c11f26
--- /dev/null
+++ b/examples/random_brightness/Cargo.lock
@@ -0,0 +1,485 @@
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diff --git a/examples/random_brightness/Cargo.toml b/examples/random_brightness/Cargo.toml
new file mode 100644
index 0000000..9c1f2df
--- /dev/null
+++ b/examples/random_brightness/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "random_brightness"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+servicepoint2 = { path = "../.." }
+clap = { version = "4.5.4", features = ["derive"] }
+rand = "0.8.5"
+env_logger = "0.11.3"
+log = "0.4.21"
diff --git a/examples/random_brightness/src/main.rs b/examples/random_brightness/src/main.rs
new file mode 100644
index 0000000..209d918
--- /dev/null
+++ b/examples/random_brightness/src/main.rs
@@ -0,0 +1,59 @@
+use std::cmp::Ord;
+use std::time::Duration;
+use clap::Parser;
+use rand::Rng;
+use servicepoint2::{ByteGrid, Connection, Origin, PixelGrid, TILE_HEIGHT, TILE_WIDTH};
+use servicepoint2::Command::{Brightness, CharBrightness, BitmapLinearWin};
+
+#[derive(Parser, Debug)]
+struct Cli {
+    #[arg(short, long, default_value = "localhost:2342")]
+    destination: String,
+    #[arg(short, long, default_value_t = true)]
+    enable_all: bool,
+    #[arg(short, long, default_value_t = 100, allow_negative_numbers = false)]
+    wait_ms: u64,
+}
+
+fn main() {
+    env_logger::builder()
+        .filter_level(log::LevelFilter::Debug)
+        .init();
+    let cli = Cli::parse();
+
+    let connection = Connection::open(cli.destination).unwrap();
+    let wait_duration = Duration::from_millis(cli.wait_ms);
+
+    // put all pixels in on state
+    if cli.enable_all {
+        let mut filled_grid = PixelGrid::max_sized();
+        filled_grid.fill(true);
+        connection.send(BitmapLinearWin(Origin::top_left(), filled_grid)).unwrap();
+    }
+
+    // set all pixels to the same random brightness
+    let mut rng = rand::thread_rng();
+    connection.send(Brightness(rng.gen())).unwrap();
+
+    // continuously update random windows to new random brightness
+    loop {
+        let min_size = 1;
+        let x: u16 = rng.gen_range(0..TILE_WIDTH - min_size);
+        let y: u16 = rng.gen_range(0..TILE_HEIGHT - min_size);
+
+        let w: u16 = rng.gen_range(min_size..=TILE_WIDTH - x);
+        let h: u16 = rng.gen_range(min_size..=TILE_HEIGHT - y);
+
+        let origin = Origin(x, y);
+        let mut luma = ByteGrid::new(w as usize, h as usize);
+
+        for y in 0..h as usize {
+            for x in 0..w as usize {
+                luma.set(x, y, rng.gen());
+            }
+        }
+
+        connection.send(CharBrightness(origin, luma)).unwrap();
+        std::thread::sleep(wait_duration);
+    }
+}