Function main

test/benchmark/test_box2d_benchmark.cpp:72–144

void iter();

int main(int argc, char **argv) {
  int arg = argc > 1 ? argv[1][0] - '0' : 3;
  switch(arg) {
    case 0: return 0; break;
    case 1: WARMUP = 5; FRAMES = 35; break;
    case 2: WARMUP = 32; FRAMES = 161; break;
    case 3: WARMUP = 64; FRAMES = 333; break;
    case 4: WARMUP = 5*64; FRAMES = 7*333; break;
    case 5: WARMUP = 10*64; FRAMES = 17*333; break;
    default: printf("error: %d\\n", arg); return -1;
  }

  // do not split out warmup, do not ignore initial stalls
  FRAMES += WARMUP;
  WARMUP = 0;

  times = new clock_t[FRAMES];

	// Define the gravity vector.
	b2Vec2 gravity(0.0f, -10.0f);

	// Construct a world object, which will hold and simulate the rigid bodies.
	world = new b2World(gravity);
  world->SetAllowSleeping(false);

	{
		b2BodyDef bd;
		b2Body* ground = world->CreateBody(&bd);

		b2EdgeShape shape;
		shape.Set(b2Vec2(-40.0f, 0.0f), b2Vec2(40.0f, 0.0f));
		ground->CreateFixture(&shape, 0.0f);
	}

	{
		float32 a = 0.5f;
		b2PolygonShape shape;
		shape.SetAsBox(a, a);

		b2Vec2 x(-7.0f, 0.75f);
		b2Vec2 y;
		b2Vec2 deltaX(0.5625f, 1);
		b2Vec2 deltaY(1.125f, 0.0f);

		for (int32 i = 0; i < e_count; ++i) {
			y = x;

			for (int32 j = i; j < e_count; ++j) {
				b2BodyDef bd;
				bd.type = b2_dynamicBody;
				bd.position = y;
				b2Body* body = world->CreateBody(&bd);
				body->CreateFixture(&shape, 5.0f);

        topBody = body;

				y += deltaY;
			}