Function ApplyUpdateNode

src/effects/effects_apply.c:366–406

process UpdateNode effect

// process UpdateNode effect
static void ApplyUpdateNode
(
	FILE *stream,     // effects stream
	GraphContext *gc  // graph to operate on
) {
	//--------------------------------------------------------------------------
	// effect format:
	//    entity ID
	//    attribute ID
	//    attribute value
	//--------------------------------------------------------------------------

	SIValue v;             // updated value
	uint props_set;        // number of attributes updated
	uint props_removed;    // number of attributes removed
	Attribute_ID attr_id;  // entity ID

	EntityID id = INVALID_ENTITY_ID;

	//--------------------------------------------------------------------------
	// read node ID
	//--------------------------------------------------------------------------

	fread_assert(&id, sizeof(EntityID), stream);

	//--------------------------------------------------------------------------
	// read attribute ID
	//--------------------------------------------------------------------------

	fread_assert(&attr_id, sizeof(Attribute_ID), stream);

	//--------------------------------------------------------------------------
	// read attribute ID
	//--------------------------------------------------------------------------

	v = SIValue_FromBinary(stream);
	ASSERT(SI_TYPE(v) & (SI_VALID_PROPERTY_VALUE | T_NULL));
	ASSERT((attr_id != ATTRIBUTE_ID_ALL || SIValue_IsNull(v)) && attr_id != ATTRIBUTE_ID_NONE);

	UpdateNodeProperty(gc, id, attr_id, v);
}

// process DeleteNode effect
static void ApplyDeleteNode