added TextureIterator

1 files changed, 8 insertions, 0 deletions

diff --git a/src/inventory.cpp b/src/inventory.cpp
index 78502a7..83c1f0a 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -1,4 +1,7 @@
 #include <inventory.hpp>
+
+#include <numeric>
+
 #include <entities.hpp>
 #include <ui.hpp>
 #include <gametime.hpp>
@@ -296,6 +299,11 @@ void Inventory::draw(void) {
 		}
 	} a = 0;
 
+	auto averagef = [](const std::vector<int> &v) {
+		auto sum = std::accumulate(std::begin(v), std::end(v), 0);
+		return sum / v.size();
+	};
+
 	ui::fontTransInv = 255 * (averagef(dfp) / range);
 	if (ui::fontTransInv > 255)
 		ui::fontTransInv = 255;