TEST(Transformable_objects, can_be_rotated)
{
Transformable t;
quat rotationX(Transformable::X_AXIS, toRadian(90));
quat rotationY(Transformable::Y_AXIS, toRadian(180));
EXPECT_EQ(quat(0,0,0,1), t.rotation());
t.rotateTo(rotationX);
EXPECT_EQ(normalize(rotationX), t.rotation());
t.rotateTo(Transformable::Y_AXIS, toRadian(180));
EXPECT_EQ(normalize(rotationY), t.rotation());
t.rotate(quat(Transformable::X_AXIS, toRadian(90)));
EXPECT_EQ(normalize(rotationX * rotationY), t.rotation());
t.rotate(Transformable::X_AXIS, toRadian(-90));
EXPECT_EQ(normalize(rotationY), t.rotation());
}
TEST(Transformable_objects, have_directions_that_adapt_to_rotation_around_z_axis)
{
Transformable t;
EXPECT_EQ(Transformable::X_AXIS, t.left());
EXPECT_EQ(Transformable::Y_AXIS, t.up());
EXPECT_EQ(Transformable::Z_AXIS, t.forward());
t.rotate(Transformable::Z_AXIS, toRadian(90));
EXPECT_EQ( Transformable::Y_AXIS, t.left());
EXPECT_EQ(-Transformable::X_AXIS, t.up());
EXPECT_EQ( Transformable::Z_AXIS, t.forward());
t.rotate(Transformable::Z_AXIS, toRadian(90));
EXPECT_EQ(-Transformable::X_AXIS, t.left());
EXPECT_EQ(-Transformable::Y_AXIS, t.up());
EXPECT_EQ( Transformable::Z_AXIS, t.forward());
}
bool CMD_rotate(
u32 n_args,
char **args
)
{
Transformable *t;
f32 f[4];
if (!Command::checkArgCount(5, n_args, args))
return false;
if (!(t = fetchTransformable(args[0])))
return false;
if (!parseFloats(3, f, &args[1]))
return false;
t->rotate(f[0], f[1], f[2], f[3]);
return true;
}