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, 18 insertions, 18 deletions

diff --git a/core/engine.h b/core/engine.h
index 8512779d4c..aa28b35814 100644
--- a/core/engine.h
+++ b/core/engine.h
@@ -51,28 +51,28 @@ public:
 private:
 	friend class Main;
 
-	uint64_t frames_drawn;
-	uint32_t _frame_delay;
-	uint64_t _frame_ticks;
-	float _frame_step;
-
-	int ips;
-	float physics_jitter_fix;
-	float _fps;
-	int _target_fps;
-	float _time_scale;
-	bool _pixel_snap;
-	uint64_t _physics_frames;
-	float _physics_interpolation_fraction;
-	bool abort_on_gpu_errors;
-
-	uint64_t _idle_frames;
-	bool _in_physics;
+	uint64_t frames_drawn = 0;
+	uint32_t _frame_delay = 0;
+	uint64_t _frame_ticks = 0;
+	float _frame_step = 0;
+
+	int ips = 60;
+	float physics_jitter_fix = 0.5;
+	float _fps = 1;
+	int _target_fps = 0;
+	float _time_scale = 1.0;
+	bool _pixel_snap = false;
+	uint64_t _physics_frames = 0;
+	float _physics_interpolation_fraction = 0.0f;
+	bool abort_on_gpu_errors = false;
+
+	uint64_t _idle_frames = 0;
+	bool _in_physics = false;
 
 	List<Singleton> singletons;
 	Map<StringName, Object *> singleton_ptrs;
 
-	bool editor_hint;
+	bool editor_hint = false;
 
 	static Engine *singleton;