Port member initialization from constructor to declaration (C++11)

Using `clang-tidy`'s `modernize-use-default-member-init` check and
manual review of the changes, and some extra manual changes that
`clang-tidy` failed to do.

Also went manually through all of `core` to find occurrences that
`clang-tidy` couldn't handle, especially all initializations done
in a constructor without using initializer lists.

1 files changed, 1 insertions, 17 deletions

diff --git a/core/engine.cpp b/core/engine.cpp
index 5361e09a8a..86ce0395b9 100644
--- a/core/engine.cpp
+++ b/core/engine.cpp
@@ -217,23 +217,7 @@ Engine *Engine::get_singleton() {
 bool Engine::is_abort_on_gpu_errors_enabled() const {
 	return abort_on_gpu_errors;
 }
-Engine::Engine() {
 
+Engine::Engine() {
 	singleton = this;
-	frames_drawn = 0;
-	ips = 60;
-	physics_jitter_fix = 0.5;
-	_physics_interpolation_fraction = 0.0f;
-	_frame_delay = 0;
-	_fps = 1;
-	_target_fps = 0;
-	_time_scale = 1.0;
-	_pixel_snap = false;
-	_physics_frames = 0;
-	_idle_frames = 0;
-	_in_physics = false;
-	_frame_ticks = 0;
-	_frame_step = 0;
-	editor_hint = false;
-	abort_on_gpu_errors = false;
 }