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#include <object.hpp>
#include <ray.hpp>
#include <common.hpp>
#include <vector.hpp>
#include <catch2/catch.hpp>
#include <math.h>
TEST_CASE("Sphere normal at", "[sphere]") {
auto sph = Sphere(Vec3d(2, 3, 4), 2);
auto norm = sph.norm_at(Vec3d(2, 3, 2), Vec3d());
REQUIRE(norm.m_x == 0);
REQUIRE(norm.m_y == 0);
REQUIRE(norm.m_z == -1);
}
TEST_CASE("Sphere intersect", "[sphere]") {
auto sph = Sphere(Vec3d(2, 3, 4), 2);
auto ray = Ray(Vec3d(1, 0, 0), Vec3d(0, 1, 1.5), true);
auto dist = sph.intersect(ray, false);
REQUIRE(abs(dist - 3.28) < 0.01);
}
TEST_CASE("Plane intersect", "[plane]") {
auto pln = Plane(Vec3d(3, 4, 2), Vec3d(-6, -3, -2));
auto ray = Ray(Vec3d(0, 0, 0), Vec3d(-2, -1, 5));
auto dist = pln.intersect(ray, false);
REQUIRE(dist == -1);
ray = Ray(Vec3d(-2, -2, 0), Vec3d(-2, -1, 5));
dist = pln.intersect(ray, false);
REQUIRE(abs(dist - 20.4) < 0.1);
}
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