Merge #5875

5875: Move `src/game/bezier.cpp/h` to `src/base/bezier.cpp/h` r=def- a=Robyt3

As those functions are not game specific per se, they can be part of base instead.

Closes #3334.

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## Checklist

- [X] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test (especially base/) or added coverage to integration test
- [ ] Considered possible null pointers and out of bounds array indexing
- [ ] Changed no physics that affect existing maps
- [ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)


Co-authored-by: Robert Müller <robytemueller@gmail.com>

CMakeLists.txt

@@ -1686,6 +1686,8 @@ add_custom_command(OUTPUT "src/game/generated/wordlist.h"
 
 # Sources
 set_src(BASE GLOB_RECURSE src/base
+  bezier.cpp
+  bezier.h
   color.h
   detect.h
   dynamic.h
@@ -1824,8 +1826,6 @@ set_src(ENGINE_GFX GLOB src/engine/gfx
   image_manipulation.h
 )
 set_src(GAME_SHARED GLOB src/game
-  bezier.cpp
-  bezier.h
   collision.cpp
   collision.h
   ddracechat.h

src/base/bezier.h

@@ -1,5 +1,5 @@
-#ifndef GAME_BEZIER_H
-#define GAME_BEZIER_H
+#ifndef BASE_BEZIER_H
+#define BASE_BEZIER_H
 
 // Evaluates the Bernstein polynomial of degree 3/a one-dimensional Bezier curve
 //
@@ -24,4 +24,4 @@ public:
 	static CCubicBezier With(float Start, float StartDerivative, float EndDerivative, float End);
 };
 
-#endif // GAME_BEZIER_H
+#endif // BASE_BEZIER_H

src/game/client/components/camera.h

@@ -2,12 +2,12 @@
 /* If you are missing that file, acquire a complete release at teeworlds.com.                */
 #ifndef GAME_CLIENT_COMPONENTS_CAMERA_H
 #define GAME_CLIENT_COMPONENTS_CAMERA_H
+#include <base/bezier.h>
 #include <base/vmath.h>
 
 #include <engine/client.h>
 #include <engine/console.h>
 
-#include <game/bezier.h>
 #include <game/client/component.h>
 
 class CCamera : public CComponent

src/test/bezier.cpp

@@ -1,7 +1,7 @@
 #include "test.h"
 #include <gtest/gtest.h>
 
-#include <game/bezier.h>
+#include <base/bezier.h>
 
 // Due to the implementation, derivatives must be divisible by 3 to be exactly
 // represented.