Method: Snow::Vec3Array#store

Defined in:

ext/snow-math/snow-math.c

#store(sm_index, sm_value) ⇒ Object Also known as: []=

Stores a Vec3 at the given index. If the provided Vec3 is a member of the array and stored at the index, then no copy is done, otherwise the Vec3 is copied to the array.

call-seq: store(index, value) -> value

# File 'ext/snow-math/snow-math.c', line 525

static VALUE sm_vec3_array_store(VALUE sm_self, VALUE sm_index, VALUE sm_value)
{
  vec3_t *arr;
  vec3_t *value;
  size_t length = NUM2SIZET(sm_mathtype_array_length(sm_self));
  size_t index = NUM2SIZET(sm_index);

  rb_check_frozen(sm_self);

  if (index >= length) {
    rb_raise(rb_eRangeError,
      "Index %zu out of bounds for array with length %zu",
      index, length);
  } else if (!SM_IS_A(sm_value, vec3) && !SM_IS_A(sm_value, vec4) && !SM_IS_A(sm_value, quat)) {
    rb_raise(rb_eTypeError,
      "Invalid value to store: expected Vec3, Vec4, or Quat, got %s",
      rb_obj_classname(sm_value));
  }

  Data_Get_Struct(sm_self, vec3_t, arr);
  value = sm_unwrap_vec3(sm_value, NULL);

  if (value == &arr[index]) {
    /* The object's part of the array, don't bother copying */
    return sm_value;
  }

  vec3_copy(*value, arr[index]);
  return sm_value;
}