diff --git a/include/misc/Easing.h b/include/misc/Easing.h
index ed1cdae..2ceb70b 100644
--- a/include/misc/Easing.h
+++ b/include/misc/Easing.h
@@ -3,6 +3,8 @@
 namespace td {
 namespace utils{
 
+constexpr float PI = 3.14159274101257324219;
+
 /* Sine functions */
 
 float easeInSine(float x);
diff --git a/src/misc/Easing.cpp b/src/misc/Easing.cpp
index e3cb697..781bb38 100644
--- a/src/misc/Easing.cpp
+++ b/src/misc/Easing.cpp
@@ -8,15 +8,15 @@ namespace utils{
 /* Sine functions */
 
 float easeInSine(float x){
-    return 1.0f - std::cos((x * M_PI) / 2.0f);
+    return 1.0f - std::cos((x * PI) / 2.0f);
 }
 
 float easeOutSine(float x){
-    return std::sin((x * M_PI) / 2.0f);
+    return std::sin((x * PI) / 2.0f);
 }
 
 float easeInOutSine(float x){
-    return -(std::cos(M_PI * x) - 1.0f) / 2.0f;
+    return -(std::cos(PI * x) - 1.0f) / 2.0f;
 }
 
 /* Cubic functions */
@@ -66,7 +66,7 @@ float easeInOutCirc(float x){
 /* Elastic functions */
 
 float easeInElastic(float x){
-    const float c4 = (2 * M_PI) / 3.0f;
+    const float c4 = (2 * PI) / 3.0f;
 
     return x == 0
         ? 0
@@ -76,7 +76,7 @@ float easeInElastic(float x){
 }
 
 float easeOutElastic(float x){
-    const float c4 = (2 * M_PI) / 3.0f;
+    const float c4 = (2 * PI) / 3.0f;
 
     return x == 0
         ? 0
@@ -86,7 +86,7 @@ float easeOutElastic(float x){
 }
 
 float easeInOutElastic(float x){
-    const float c5 = (2 * M_PI) / 4.5;
+    const float c5 = (2 * PI) / 4.5;
 
     return x == 0
         ? 0