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few helper functions for children extracting

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This commit is contained in:
Matvey Cherevko
2019-10-25 07:58:32 +07:00
parent e67a2baa75
commit 3bfadb538b
4 changed files with 199 additions and 40 deletions
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19
sources/enduro2d/high/systems/render_system.cpp
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@@ -19,23 +19,6 @@ namespace
using namespace e2d;
using namespace e2d::render_system_impl;
template < typename F >
void for_each_by_nodes(const const_node_iptr& root, F&& f) {
static vector<const_node_iptr> temp_nodes;
try {
if ( root ) {
root->extract_all_nodes(std::back_inserter(temp_nodes));
for ( const const_node_iptr& node : temp_nodes ) {
f(node);
}
}
} catch (...) {
temp_nodes.clear();
throw;
}
temp_nodes.clear();
}
template < typename T, typename Comp, typename F >
void for_each_by_sorted_components(ecs::registry& owner, Comp&& comp, F&& f) {
static vector<std::pair<ecs::const_entity,T>> temp_components;
@@ -67,7 +50,7 @@ namespace
const auto func = [&ctx](const ecs::const_entity& scn_e, const scene&) {
const actor* scn_a = scn_e.find_component<actor>();
if ( scn_a && scn_a->node() ) {
for_each_by_nodes(scn_a->node(), [&ctx](const const_node_iptr& node){
nodes::for_extracted_nodes(scn_a->node(), [&ctx](const const_node_iptr& node){
ctx.draw(node);
});
}