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Compare n-body to asmjs and js

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This commit is contained in:
dcodeIO
2018-04-23 15:04:04 +02:00
parent 80d104201c
commit 78a3dcfaf0
10 changed files with 4285 additions and 3390 deletions
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29
examples/n-body/assembly/index.ts
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@ -120,7 +120,7 @@ class NBodySystem {
let dz = iz - bodyj.z;
let distanceSq = dx * dx + dy * dy + dz * dz;
let distance = sqrt(distanceSq);
let distance = Math.sqrt(distanceSq);
let mag = dt / (distanceSq * distance);
let bim = bodyim * mag;
@ -170,7 +170,7 @@ class NBodySystem {
let dx = ix - bodyj.x;
let dy = iy - bodyj.y;
let dz = iz - bodyj.z;
let distance = sqrt(dx * dx + dy * dy + dz * dz);
let distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
e -= bim * bodyj.mass / distance;
}
}
@ -178,17 +178,21 @@ class NBodySystem {
}
}
var bodies = new Array<Body>();
bodies.push(Sun());
bodies.push(Jupiter());
bodies.push(Saturn());
bodies.push(Uranus());
bodies.push(Neptune());
var system: NBodySystem;
var system = new NBodySystem(bodies);
export function init(): void {
var bodies = new Array<Body>();
bodies.push(Sun());
bodies.push(Jupiter());
bodies.push(Saturn());
bodies.push(Uranus());
bodies.push(Neptune());
system = new NBodySystem(bodies);
}
export function getBody(index: i32): Body | null {
return index < bodies.length ? bodies[index] : null;
var bodies = system.bodies;
return <u32>index < <u32>bodies.length ? bodies[index] : null;
}
export function step(): f64 {
@ -196,7 +200,6 @@ export function step(): f64 {
return system.energy();
}
export function bench(steps: i32): f64 {
for (let i = 0; i < steps; i++) system.advance(0.01);
return system.energy();
export function bench(steps: u32): void {
for (let i: u32 = 0; i < steps; i++) system.advance(0.01);
}