Starter code (rust).

b89c7b43 · Finn Bear · 778be09b · b89c7b43 · b89c7b43 · b89c7b43
Commit b89c7b43 authored 2 years ago by Finn Bear
--- a/experiments/starter_rust/Cargo.lock
+++ b/experiments/starter_rust/Cargo.lock
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--- a/experiments/starter_rust/Cargo.toml
+++ b/experiments/starter_rust/Cargo.toml
+[package]
+name = "starter_rust"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+image = {version = "0.24", features = ["png"], default-features = false}
+imageproc = "0.23.0"
\ No newline at end of file
--- a/experiments/starter_rust/output.png
+++ b/experiments/starter_rust/output.png
--- a/experiments/starter_rust/src/main.rs
+++ b/experiments/starter_rust/src/main.rs
+use image::{Rgba, RgbaImage};
+use imageproc::drawing::*;
+
+fn main() {
+    // Define some constants that store the resolution (in various useful data types).
+    const RESOLUTION_U32: u32 = 256;
+    const RESOLUTION_I32: i32 = RESOLUTION_U32 as i32;
+    const RESOLUTION_F32: f32 = RESOLUTION_U32 as f32;
+
+    // Allocate image (fully transparent by default).
+    let mut image = RgbaImage::new(RESOLUTION_U32, RESOLUTION_U32);
+
+    // Iterate each pixel and do some work.
+    for y in 0..RESOLUTION_U32 {
+        for x in 0..RESOLUTION_U32 {
+            // Fill with black.
+            image.put_pixel(x, y, Rgba::from([0, 0, 0, 255]));
+
+            // Equivalent
+            *image.get_pixel_mut(x, y) = Rgba::from([0, 0, 0, 255]);
+        }
+    }
+
+    // Draw diagonal white line.
+    draw_line_segment_mut(
+        &mut image,
+        (RESOLUTION_F32 * 0.1, RESOLUTION_F32 * 0.1),
+        (RESOLUTION_F32 * 0.9, RESOLUTION_F32 * 0.9),
+        Rgba::from([255, 255, 255, 255]),
+    );
+
+    // Draw white circle in center.
+    draw_filled_circle_mut(
+        &mut image,
+        (RESOLUTION_I32 / 2, RESOLUTION_I32 / 2),
+        20,
+        Rgba::from([255, 0, 0, 255]),
+    );
+
+    // Save output image.
+    image
+        .save("output.png")
+        .expect("unable to save output image");
+}