code wiki / _hdl_build / nx_solarsim_html.nx
`nx_solarsim_html.nx` source

1// nx_solarsim_html.nx -- SOVEREIGN packager: the real N-body solar-system wasm -> self-contained .html that runs in
2// any browser. The emitted JS does ONLY: (1) BLIT our wasm framebuffer to the canvas via putImageData (copy bytes,
3// NOT canvas drawing), (2) drive the sim each animation frame (ex.tick(0)) and forward R (reset) / space (pause).
4// ALL gravity physics + integer rasterization live in our sovereign wasm (no JS logic, no canvas-draw, no float,
5// no 3rd-party). Honest copy: this is the real N-body solar system whose periods EMERGE from the physics and match
6// real measured planetary data (validated by nx_sim_validation_real_gate + nx_solarsim_gate).
7// usage: nx_solarsim_html <in.wasm> <out.html>. license_tier: ORIGINAL
8import "nx_syscalls.nx"
9import "nx_base64.nx"
10
11func hw(fd: i64, s: *u8) -> i64 { var n: i64 = 0; while s[n] != (0 as u8) { n = n + 1 } sys_write(fd, s, n); return 0 }
12
13func main(argc: i64, argv: *i64) -> i64 {
14    if argc < 3 { hw(2, "usage: nx_solarsim_html <in.wasm> <out.html>\n" as *u8); return 2 }
15    let wpath: *u8 = argv[1] as *u8
16    let hpath: *u8 = argv[2] as *u8
17    let wlen_p: *i64 = sys_mmap(8) as *i64
18    let wbytes: *u8 = sys_read_file(wpath, wlen_p)
19    if (wbytes as i64) == 0 { hw(2, "read wasm failed\n" as *u8); return 3 }
20    let wlen: i64 = wlen_p[0]
21    let b64: *u8 = sys_mmap(wlen * 2 + 64) as *u8
22    let b64len: i64 = b64_encode(wbytes, wlen, b64)
23
24    let fd: i64 = sys_openat_wr(hpath, 0x1a4)
25    if fd < 0 { hw(2, "open html failed\n" as *u8); return 4 }
26    hw(fd, "<!doctype html><html><head><meta charset='utf-8'><title>Nishi Solar System (sovereign wasm)</title><style>body{background:#05070f;margin:0;display:flex;flex-direction:column;justify-content:center;align-items:center;height:100vh;font-family:sans-serif;color:#cdd}canvas{image-rendering:pixelated;width:512px;height:512px;border:1px solid #2a3140;background:#05070f}p{margin:6px}b{color:#8eb}</style></head><body><h2>Nishi Solar System &mdash; real N-body gravity (sovereign WASM, no float)</h2><canvas id='c'></canvas><p id='hud'><b>R</b> reset &middot; <b>space</b> pause</p><p style='color:#667;font-size:12px;max-width:520px;text-align:center'>100% Nishi: each planet (Mercury&ndash;Jupiter) is leapfrog-integrated under the Sun's gravity (a=-GM&middot;r/|r|&sup3;) with integer isqrt &mdash; all in sovereign WASM; the browser only blits our framebuffer. The orbital PERIODS are not scripted: they EMERGE from the physics and follow Kepler's 3rd law, matching real measured planetary periods to within a few percent. Radial scale is sqrt-compressed for visibility; physics &amp; periods are in true units.</p><script>\n" as *u8)
27    hw(fd, "const B='" as *u8)
28    sys_write(fd, b64, b64len)
29    hw(fd, "';\nconst bytes=Uint8Array.from(atob(B),c=>c.charCodeAt(0));\nWebAssembly.instantiate(bytes).then(r=>{const ex=r.instance.exports;const W=Number(ex.ww()),H=Number(ex.hh()),off=Number(ex.fb_off());const cv=document.getElementById('c');cv.width=W;cv.height=H;const ctx=cv.getContext('2d');const img=ctx.createImageData(W,H);function blit(){const mem=new Uint8Array(ex.memory.buffer);for(let i=0;i<W*H;i++){const b=off+i*8;img.data[i*4]=mem[b];img.data[i*4+1]=mem[b+1];img.data[i*4+2]=mem[b+2];img.data[i*4+3]=255;}ctx.putImageData(img,0,0);}let paused=false;ex.init();function frame(){if(!paused){ex.tick(BigInt(0));ex.render();blit();}requestAnimationFrame(frame);}ex.render();blit();requestAnimationFrame(frame);document.addEventListener('keydown',function(e){const k=e.key.toLowerCase();if(k=='r'){ex.tick(BigInt(3));}else if(k==' '){paused=!paused;e.preventDefault();}ex.render();blit();});}).catch(e=>{document.body.innerHTML+='<pre>'+e.message+'</pre>';});\n</script></body></html>\n" as *u8)
30    sys_close(fd)
31    hw(1, "wrote solarsim html\n" as *u8)
32    return 0
33}
nx_solarsim_html.nx source

`nx_solarsim_html.nx` source
