Method add_cone

src/world/debug_line.cpp:107–143

}

void DebugLine::add_cone(const Vector3 &base_center, const Vector3 &tip, f32 radius, const Color4 &color, u32 segments, u32 rays)
{
	Vector3 normal = tip - base_center;
	normalize(normal);
	const Vector3 arr[] =
	{
		{ normal.z,             normal.z, -normal.x - normal.y },
		{ -normal.y - normal.z, normal.x, normal.x             }
	};
	const int idx = ((normal.z != 0.0f) && (-normal.x != normal.y));
	Vector3 right = arr[idx];
	normalize(right);

	const Vector3 x = right * radius;
	const Vector3 y = cross(right, normal) * radius;
	Vector3 from;

	// Draw base.
	const f32 base_step = PI_TWO / (f32)(segments > 3 ? segments : 3);
	from = base_center - y;
	for (u32 i = 0; i <= segments; ++i) {
		const f32 t = base_step * i - PI_HALF;
		const Vector3 to = base_center + x*fcos(t) + y*fsin(t);
		add_line(from, to, color);
		from = to;
	}

	// Draw rays.
	const f32 ray_step = PI_TWO / (f32)(rays > 1 ? rays : 1);
	from = base_center - y;
	for (u32 i = 0; i <= rays; ++i) {
		const f32 t = ray_step * i - PI_HALF;
		const Vector3 to = base_center + x*fcos(t) + y*fsin(t);
		add_line(from, tip, color);
		from = to;
	}
}

void DebugLine::add_sphere(const Vector3 &center, const f32 radius, const Color4 &color, u32 segments)
{