editor: reduce struct character size

2 files changed, 6 insertions, 6 deletions

diff --git a/editor/character.cpp b/editor/character.cpp
index a971434d..845f8345 100644
--- a/editor/character.cpp
+++ b/editor/character.cpp
@@ -62,10 +62,11 @@ character_wip::~character_wip() = default;
 
 int character_wip::allocate_frame_time(float dt)
 {
-    delta += dt;
-    auto ret = (int)(delta*framerate);
-    delta -= ret;
-    delta = std::fmax(0.f, delta);
+    int d = int(delta) + int(65535u * dt);
+    constexpr int framerate_ = 65535/framerate;
+    static_assert(framerate_ > 0);
+    auto ret = d / framerate_;
+    delta = (std::uint16_t)std::clamp(d - ret*65535, 0, 65535);
     return ret;
 }
 
diff --git a/editor/character.hpp b/editor/character.hpp
index 86f634c5..7172415c 100644
--- a/editor/character.hpp
+++ b/editor/character.hpp
@@ -16,9 +16,8 @@ struct character_wip final
 
     std::shared_ptr<anim_atlas> walk_anim;
     global_coords pos;
-    std::size_t frame = 0;
-    float delta = 0;
     Vector2 offset;
+    std::uint16_t delta = 0, frame = 0;
     rotation r = rotation::NE;
 
 private: