diff options
Diffstat (limited to 'src/crepe/system/RenderSystem.cpp')
| -rw-r--r-- | src/crepe/system/RenderSystem.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp index 11c20f5..82257c4 100644 --- a/src/crepe/system/RenderSystem.cpp +++ b/src/crepe/system/RenderSystem.cpp @@ -1,6 +1,7 @@ #include <algorithm> #include <cassert> #include <functional> +#include <stdexcept> #include <vector> #include "../ComponentManager.h" @@ -20,6 +21,8 @@ void RenderSystem::update_camera() { std::vector<std::reference_wrapper<Camera>> cameras = mgr.get_components_by_type<Camera>(); + if (cameras.size() == 0) throw std::runtime_error("No cameras in current scene"); + for (Camera & cam : cameras) { SDLContext::get_instance().camera(cam); this->curr_cam_ref = &cam; @@ -27,8 +30,8 @@ void RenderSystem::update_camera() { } bool sorting_comparison(const Sprite & a, const Sprite & b) { - if (a.sorting_in_layer > b.sorting_in_layer) return true; - if (a.sorting_in_layer == b.sorting_in_layer) return a.order_in_layer > b.order_in_layer; + if (a.sorting_in_layer < b.sorting_in_layer) return true; + if (a.sorting_in_layer == b.sorting_in_layer) return a.order_in_layer < b.order_in_layer; return false; } |