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dungeon-gunner/source/util/Collection.cpp

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/*
* Collection.cpp
*
* Created on: 29.08.2012
* Author: Felix
*/
#include "Collection.h"
#include <algorithm>
/**
* Insert a drawable into the group. Drawables should only be handled with shared_ptr.
* An object can't be inserted more than once at the same level.
*/
void
Collection::insert(std::shared_ptr<Sprite> drawable) {
Body::Category cat = drawable->getCategory();
auto item = std::find(mDrawables[cat].begin(), mDrawables[cat].end(), drawable);
if (item == mDrawables[cat].end()) {
mDrawables[cat].push_back(drawable);
}
}
/**
* Removes a drawable from the group.
*/
void
Collection::remove(std::shared_ptr<Sprite> drawable) {
for (auto v = mDrawables.begin(); v != mDrawables.end(); v++) {
auto item = std::find(v->second.begin(), v->second.end(), drawable);
if (item != v->second.end()) {
v->second.erase(item);
}
}
}
/**
* Deletes any sprites which return true for getDelete().
*/
void
Collection::checkDelete() {
for (auto v = mDrawables.begin(); v != mDrawables.end(); v++) {
for (auto item = v->second.begin(); item != v->second.end(); ) {
if ((*item)->getDelete()) {
item = v->second.erase(item);
}
else {
item++;
}
}
}
}
/**
* Draws all elements in the group.
*/
void
Collection::draw(sf::RenderTarget& target, sf::RenderStates states) const {
for (auto v = mDrawables.begin(); v != mDrawables.end(); v++) {
for (auto item : v->second) {
target.draw(static_cast<sf::Drawable&>(*item), states);
}
}
}