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#include "transform_system.h"
#include "game.h"
void TransformSystem::initSprite(int spriteId, vec2i loc) {
Sprite& sprite = game_.getSprite(spriteId);
sprite.loc() = loc;
spritesByY_.emplace(loc.y(), spriteId);
}
void TransformSystem::moveSprite(int spriteId, vec2i newLoc) {
Sprite& sprite = game_.getSprite(spriteId);
bool changedY = (sprite.loc().y() != newLoc.y());
if (changedY) {
spritesByY_.erase(std::make_tuple(sprite.loc().y(), spriteId));
}
sprite.loc() = newLoc;
if (changedY) {
spritesByY_.emplace(newLoc.y(), spriteId);
}
}
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