002 array init

// TEST: kernel.init with array of bodies
//
// When source contains nested {} blocks, init creates an array.
// Count is implied from the number of blocks.

const std = @import("std");

~import std/kernel

// Declare the shape
~std/kernel:shape(Body) {
    x: f64,
    y: f64,
    mass: f64,
}

// Initialize multiple bodies - array mode!
~std/kernel:init(Body) {
    { x: 0.0, y: 0.0, mass: 1.0 },
    { x: 1.0, y: 0.0, mass: 0.5 },
    { x: 2.0, y: 0.0, mass: 0.25 },
}

// Access the generated array
pub fn main() void {
    std.debug.print("bodies[0].x={d}, bodies[2].mass={d}, len={d}\n", .{
        kernel_data[0].x,
        kernel_data[2].mass,
        kernel_data.len,
    });
}