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+// MIT License
+
+// Copyright (c) 2019 Erin Catto
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#ifndef B2_SETTINGS_H
+#define B2_SETTINGS_H
+
+#include "b2_types.h"
+#include "b2_api.h"
+
+/// @file
+/// Settings that can be overriden for your application
+///
+
+/// Define this macro in your build if you want to override settings
+#ifdef B2_USER_SETTINGS
+
+/// This is a user file that includes custom definitions of the macros, structs, and functions
+/// defined below.
+#include "b2_user_settings.h"
+
+#else
+
+#include <stdarg.h>
+#include <stdint.h>
+
+// Tunable Constants
+
+/// You can use this to change the length scale used by your game.
+/// For example for inches you could use 39.4.
+#define b2_lengthUnitsPerMeter 1.0f
+
+/// The maximum number of vertices on a convex polygon. You cannot increase
+/// this too much because b2BlockAllocator has a maximum object size.
+#define b2_maxPolygonVertices 8
+
+// User data
+
+/// You can define this to inject whatever data you want in b2Body
+struct B2_API b2BodyUserData
+{
+ b2BodyUserData()
+ {
+ pointer = 0;
+ }
+
+ /// For legacy compatibility
+ uintptr_t pointer;
+};
+
+/// You can define this to inject whatever data you want in b2Fixture
+struct B2_API b2FixtureUserData
+{
+ b2FixtureUserData()
+ {
+ pointer = 0;
+ }
+
+ /// For legacy compatibility
+ uintptr_t pointer;
+};
+
+/// You can define this to inject whatever data you want in b2Joint
+struct B2_API b2JointUserData
+{
+ b2JointUserData()
+ {
+ pointer = 0;
+ }
+
+ /// For legacy compatibility
+ uintptr_t pointer;
+};
+
+// Memory Allocation
+
+/// Default allocation functions
+B2_API void* b2Alloc_Default(int32 size);
+B2_API void b2Free_Default(void* mem);
+
+/// Implement this function to use your own memory allocator.
+inline void* b2Alloc(int32 size)
+{
+ return b2Alloc_Default(size);
+}
+
+/// If you implement b2Alloc, you should also implement this function.
+inline void b2Free(void* mem)
+{
+ b2Free_Default(mem);
+}
+
+/// Default logging function
+B2_API void b2Log_Default(const char* string, va_list args);
+
+/// Implement this to use your own logging.
+inline void b2Log(const char* string, ...)
+{
+ va_list args;
+ va_start(args, string);
+ b2Log_Default(string, args);
+ va_end(args);
+}
+
+#endif // B2_USER_SETTINGS
+
+#include "b2_common.h"
+
+#endif