remove unnecessary method

CMakeLists.txt

@@ -11,7 +11,7 @@ project(${PROJECT_NAME} VERSION ${PROJECT_VERSION})
 
 ##############################################################
 set(RAYLIB_DIR "/home/tuanpanda/Panda/04-WORKSPACE/00-PROGRAMMING/_Git Clone/raylib-4.5.0")
-set(IMGUI_DIR "/home/tuanpanda/Panda/04-WORKSPACE/00-PROGRAMMING/_Git Clone/imgui-1.89.7")
+set(IMGUI_DIR "/home/tuanpanda/Panda/04-WORKSPACE/00-PROGRAMMING/_Git Clone/imgui-docking")
 set(RLIMGUI_DIR "/home/tuanpanda/Panda/04-WORKSPACE/00-PROGRAMMING/_Git Clone/rlImGui")
 set(INIFILE_DIR "/home/tuanpanda/Panda/04-WORKSPACE/00-PROGRAMMING/_Git Clone/inifile-cpp")
 
@@ -66,6 +66,7 @@ file(GLOB PROJECT_SOURCES CONFIGURE_DEPENDS
     "src/*.cpp"
     "src/**/*.cpp"
     "${imgui_SOURCE_DIR}/*.cpp"
+    "${imgui_SOURCE_DIR}/misc/cpp/*.cpp"
     "${rlimgui_SOURCE_DIR}/*.cpp")
 
 set(PROJECT_INCLUDE 

src/core/Panda.hpp

@@ -11,6 +11,7 @@
 struct Texture;
 struct RenderTexture;
 struct Color;
+struct Vector2;
 
 namespace panda
 {
@@ -49,4 +50,11 @@ namespace panda
 
     // Utils
     Random &GetDefaultRandom();
+
+    // Euclidean Distance
+    double distance(const Vector2 &p1, const Vector2 &p2);
+    double distanceSqrt(const Vector2 &p1, const Vector2 &p2);
+
+    // Manhattan Distance
+    double distanceManhattan(const Vector2 &p1, const Vector2 &p2);
 }

src/utils/Distance.cpp

@@ -0,0 +1,22 @@
+#include "core/Panda.hpp"
+#include <cmath>
+#include <raylib.h>
+
+double panda::distance(const Vector2 &p1, const Vector2 &p2)
+{
+  double dx = p1.x - p2.x;
+  double dy = p1.y - p2.y;
+  return dx * dx + dy * dy;
+}
+
+double panda::distanceSqrt(const Vector2 &p1, const Vector2 &p2)
+{
+  double dx = p1.x - p2.x;
+  double dy = p1.y - p2.y;
+  return std::sqrt(dx * dx + dy * dy);
+}
+
+double panda::distanceManhattan(const Vector2 &p1, const Vector2 &p2)
+{
+  return std::abs(p1.x - p2.x) + std::abs(p1.y - p2.y);
+}