3 files changed, 16 insertions, 0 deletions
diff --git a/core/math/expression.cpp b/core/math/expression.cpp
index b52658e2cf..2786229cf3 100644
--- a/core/math/expression.cpp
+++ b/core/math/expression.cpp
@@ -52,6 +52,7 @@ const char *Expression::func_name[Expression::FUNC_MAX] = {
 	"sqrt",
 	"fmod",
 	"fposmod",
+	"posmod",
 	"floor",
 	"ceil",
 	"round",
@@ -175,6 +176,7 @@ int Expression::get_func_argument_count(BuiltinFunc p_func) {
 		case MATH_ATAN2:
 		case MATH_FMOD:
 		case MATH_FPOSMOD:
+		case MATH_POSMOD:
 		case MATH_POW:
 		case MATH_EASE:
 		case MATH_STEPIFY:
@@ -283,6 +285,12 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 			VALIDATE_ARG_NUM(1);
 			*r_return = Math::fposmod((double)*p_inputs[0], (double)*p_inputs[1]);
 		} break;
+		case MATH_POSMOD: {
+
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			*r_return = Math::posmod((int)*p_inputs[0], (int)*p_inputs[1]);
+		} break;
 		case MATH_FLOOR: {
 
 			VALIDATE_ARG_NUM(0);
diff --git a/core/math/expression.h b/core/math/expression.h
index 1113bb6587..03a2bb70e6 100644
--- a/core/math/expression.h
+++ b/core/math/expression.h
@@ -51,6 +51,7 @@ public:
 		MATH_SQRT,
 		MATH_FMOD,
 		MATH_FPOSMOD,
+		MATH_POSMOD,
 		MATH_FLOOR,
 		MATH_CEIL,
 		MATH_ROUND,
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h
index 0e3bd8a318..b6398712e4 100644
--- a/core/math/math_funcs.h
+++ b/core/math/math_funcs.h
@@ -198,6 +198,13 @@ public:
 		value += 0.0;
 		return value;
 	}
+	static _ALWAYS_INLINE_ int posmod(int p_x, int p_y) {
+		int value = p_x % p_y;
+		if ((value < 0 && p_y > 0) || (value > 0 && p_y < 0)) {
+			value += p_y;
+		}
+		return value;
+	}
 
 	static _ALWAYS_INLINE_ double deg2rad(double p_y) { return p_y * Math_PI / 180.0; }
 	static _ALWAYS_INLINE_ float deg2rad(float p_y) { return p_y * Math_PI / 180.0; }