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Exposed randi_range to global funcs + renamed rand_range to randf_range

Yuri Roubinsky 5 anni fa
parent
commit
38fb26794b

+ 12 - 5
core/math/expression.cpp

@@ -76,7 +76,8 @@ const char *Expression::func_name[Expression::FUNC_MAX] = {
 	"randomize",
 	"randi",
 	"randf",
-	"rand_range",
+	"randf_range",
+	"randi_range",
 	"seed",
 	"rand_seed",
 	"deg2rad",
@@ -127,7 +128,7 @@ String Expression::get_func_name(BuiltinFunc p_func) {
 int Expression::get_func_argument_count(BuiltinFunc p_func) {
 	switch (p_func) {
 		case MATH_RANDOMIZE:
-		case MATH_RAND:
+		case MATH_RANDI:
 		case MATH_RANDF:
 			return 0;
 		case MATH_SIN:
@@ -178,7 +179,8 @@ int Expression::get_func_argument_count(BuiltinFunc p_func) {
 		case MATH_POW:
 		case MATH_EASE:
 		case MATH_STEPIFY:
-		case MATH_RANDOM:
+		case MATH_RANDF_RANGE:
+		case MATH_RANDI_RANGE:
 		case MATH_POLAR2CARTESIAN:
 		case MATH_CARTESIAN2POLAR:
 		case LOGIC_MAX:
@@ -397,17 +399,22 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 			Math::randomize();
 
 		} break;
-		case MATH_RAND: {
+		case MATH_RANDI: {
 			*r_return = Math::rand();
 		} break;
 		case MATH_RANDF: {
 			*r_return = Math::randf();
 		} break;
-		case MATH_RANDOM: {
+		case MATH_RANDF_RANGE: {
 			VALIDATE_ARG_NUM(0);
 			VALIDATE_ARG_NUM(1);
 			*r_return = Math::random((double)*p_inputs[0], (double)*p_inputs[1]);
 		} break;
+		case MATH_RANDI_RANGE: {
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			*r_return = Math::random((int)*p_inputs[0], (int)*p_inputs[1]);
+		} break;
 		case MATH_SEED: {
 			VALIDATE_ARG_NUM(0);
 			uint64_t seed = *p_inputs[0];

+ 3 - 2
core/math/expression.h

@@ -73,9 +73,10 @@ public:
 		MATH_MOVE_TOWARD,
 		MATH_DECTIME,
 		MATH_RANDOMIZE,
-		MATH_RAND,
+		MATH_RANDI,
 		MATH_RANDF,
-		MATH_RANDOM,
+		MATH_RANDF_RANGE,
+		MATH_RANDI_RANGE,
 		MATH_SEED,
 		MATH_RANDSEED,
 		MATH_DEG2RAD,

+ 4 - 0
core/math/math_funcs.cpp

@@ -181,3 +181,7 @@ double Math::random(double from, double to) {
 float Math::random(float from, float to) {
 	return default_rand.random(from, to);
 }
+
+int Math::random(int from, int to) {
+	return default_rand.random(from, to);
+}

+ 1 - 1
core/math/math_funcs.h

@@ -289,7 +289,7 @@ public:
 
 	static double random(double from, double to);
 	static float random(float from, float to);
-	static real_t random(int from, int to) { return (real_t)random((real_t)from, (real_t)to); }
+	static int random(int from, int to);
 
 	static _ALWAYS_INLINE_ bool is_equal_approx(real_t a, real_t b) {
 		// Check for exact equality first, required to handle "infinity" values.

+ 4 - 17
core/math/random_number_generator.h

@@ -43,7 +43,7 @@ protected:
 	static void _bind_methods();
 
 public:
-	_FORCE_INLINE_ void set_seed(uint64_t seed) { randbase.seed(seed); }
+	_FORCE_INLINE_ void set_seed(uint64_t p_seed) { randbase.seed(p_seed); }
 
 	_FORCE_INLINE_ uint64_t get_seed() { return randbase.get_seed(); }
 
@@ -53,24 +53,11 @@ public:
 
 	_FORCE_INLINE_ real_t randf() { return randbase.randf(); }
 
-	_FORCE_INLINE_ real_t randf_range(real_t from, real_t to) { return randbase.random(from, to); }
+	_FORCE_INLINE_ real_t randf_range(real_t p_from, real_t p_to) { return randbase.random(p_from, p_to); }
 
-	_FORCE_INLINE_ real_t randfn(real_t mean = 0.0, real_t deviation = 1.0) { return randbase.randfn(mean, deviation); }
+	_FORCE_INLINE_ real_t randfn(real_t p_mean = 0.0, real_t p_deviation = 1.0) { return randbase.randfn(p_mean, p_deviation); }
 
-	_FORCE_INLINE_ int randi_range(int from, int to) {
-		int range;
-		int min;
-		if (to > from) {
-			range = to - from + 1;
-			min = from;
-		} else if (to < from) {
-			range = from - to + 1;
-			min = to;
-		} else { // from == to
-			return from;
-		}
-		return randbase.rand(range) + min;
-	}
+	_FORCE_INLINE_ int randi_range(int p_from, int p_to) { return randbase.random(p_from, p_to); }
 
 	RandomNumberGenerator() {}
 };

+ 15 - 0
core/math/random_pcg.cpp

@@ -49,3 +49,18 @@ double RandomPCG::random(double p_from, double p_to) {
 float RandomPCG::random(float p_from, float p_to) {
 	return randf() * (p_to - p_from) + p_from;
 }
+
+int RandomPCG::random(int p_from, int p_to) {
+	int range;
+	int min;
+	if (p_to > p_from) {
+		range = p_to - p_from + 1;
+		min = p_from;
+	} else if (p_to < p_from) {
+		range = p_from - p_to + 1;
+		min = p_to;
+	} else { // from == to
+		return p_from;
+	}
+	return rand(range) + min;
+}

+ 1 - 1
core/math/random_pcg.h

@@ -133,7 +133,7 @@ public:
 
 	double random(double p_from, double p_to);
 	float random(float p_from, float p_to);
-	real_t random(int p_from, int p_to) { return (real_t)random((real_t)p_from, (real_t)p_to); }
+	int random(int p_from, int p_to);
 };
 
 #endif // RANDOM_PCG_H

+ 17 - 2
modules/gdscript/doc_classes/@GDScript.xml

@@ -921,7 +921,7 @@
 				[/codeblock]
 			</description>
 		</method>
-		<method name="rand_range">
+		<method name="randf_range">
 			<return type="float">
 			</return>
 			<argument index="0" name="from" type="float">
@@ -931,7 +931,22 @@
 			<description>
 				Random range, any floating point value between [code]from[/code] and [code]to[/code].
 				[codeblock]
-				prints(rand_range(0, 1), rand_range(0, 1)) # Prints e.g. 0.135591 0.405263
+				prints(randf_range(-10, 10), randf_range(-10, 10)) # Prints e.g. -3.844535 7.45315
+				[/codeblock]
+			</description>
+		</method>
+		<method name="randi_range">
+			<return type="int">
+			</return>
+			<argument index="0" name="from" type="int">
+			</argument>
+			<argument index="1" name="to" type="int">
+			</argument>
+			<description>
+				Random range, any 32-bit integer value between [code]from[/code] and [code]to[/code] (inclusive). If [code]to[/code] is lesser than [code]from[/code] they are swapped.
+				[codeblock]
+				print(randi_range(0, 1)) # Prints 0 or 1
+				print(randi_range(-10, 1000)) # Prints any number from -10 to 1000
 				[/codeblock]
 			</description>
 		</method>

+ 18 - 6
modules/gdscript/gdscript_functions.cpp

@@ -83,7 +83,8 @@ const char *GDScriptFunctions::get_func_name(Function p_func) {
 		"randomize",
 		"randi",
 		"randf",
-		"rand_range",
+		"randf_range",
+		"randi_range",
 		"seed",
 		"rand_seed",
 		"deg2rad",
@@ -419,7 +420,7 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			Math::randomize();
 			r_ret = Variant();
 		} break;
-		case MATH_RAND: {
+		case MATH_RANDI: {
 			VALIDATE_ARG_COUNT(0);
 			r_ret = Math::rand();
 		} break;
@@ -427,12 +428,18 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			VALIDATE_ARG_COUNT(0);
 			r_ret = Math::randf();
 		} break;
-		case MATH_RANDOM: {
+		case MATH_RANDF_RANGE: {
 			VALIDATE_ARG_COUNT(2);
 			VALIDATE_ARG_NUM(0);
 			VALIDATE_ARG_NUM(1);
 			r_ret = Math::random((double)*p_args[0], (double)*p_args[1]);
 		} break;
+		case MATH_RANDI_RANGE: {
+			VALIDATE_ARG_COUNT(2);
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			r_ret = Math::random((int)*p_args[0], (int)*p_args[1]);
+		} break;
 		case MATH_SEED: {
 			VALIDATE_ARG_COUNT(1);
 			VALIDATE_ARG_NUM(0);
@@ -1655,7 +1662,7 @@ MethodInfo GDScriptFunctions::get_info(Function p_func) {
 			mi.return_val.type = Variant::NIL;
 			return mi;
 		} break;
-		case MATH_RAND: {
+		case MATH_RANDI: {
 			MethodInfo mi("randi");
 			mi.return_val.type = Variant::INT;
 			return mi;
@@ -1665,11 +1672,16 @@ MethodInfo GDScriptFunctions::get_info(Function p_func) {
 			mi.return_val.type = Variant::FLOAT;
 			return mi;
 		} break;
-		case MATH_RANDOM: {
-			MethodInfo mi("rand_range", PropertyInfo(Variant::FLOAT, "from"), PropertyInfo(Variant::FLOAT, "to"));
+		case MATH_RANDF_RANGE: {
+			MethodInfo mi("randf_range", PropertyInfo(Variant::FLOAT, "from"), PropertyInfo(Variant::FLOAT, "to"));
 			mi.return_val.type = Variant::FLOAT;
 			return mi;
 		} break;
+		case MATH_RANDI_RANGE: {
+			MethodInfo mi("randi_range", PropertyInfo(Variant::INT, "from"), PropertyInfo(Variant::INT, "to"));
+			mi.return_val.type = Variant::INT;
+			return mi;
+		} break;
 		case MATH_SEED: {
 			MethodInfo mi("seed", PropertyInfo(Variant::INT, "seed"));
 			mi.return_val.type = Variant::NIL;

+ 3 - 2
modules/gdscript/gdscript_functions.h

@@ -73,9 +73,10 @@ public:
 		MATH_MOVE_TOWARD,
 		MATH_DECTIME,
 		MATH_RANDOMIZE,
-		MATH_RAND,
+		MATH_RANDI,
 		MATH_RANDF,
-		MATH_RANDOM,
+		MATH_RANDF_RANGE,
+		MATH_RANDI_RANGE,
 		MATH_SEED,
 		MATH_RANDSEED,
 		MATH_DEG2RAD,

+ 9 - 2
modules/mono/glue/GodotSharp/GodotSharp/Core/GD.cs

@@ -129,7 +129,12 @@ namespace Godot
 
         public static double RandRange(double from, double to)
         {
-            return godot_icall_GD_rand_range(from, to);
+            return godot_icall_GD_randf_range(from, to);
+        }
+
+        public static int RandRange(int from, int to)
+        {
+            return godot_icall_GD_randi_range(from, to);
         }
 
         public static uint RandSeed(ulong seed, out ulong newSeed)
@@ -238,9 +243,11 @@ namespace Godot
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static void godot_icall_GD_randomize();
 
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        internal extern static double godot_icall_GD_randf_range(double from, double to);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        internal extern static double godot_icall_GD_rand_range(double from, double to);
+        internal extern static int godot_icall_GD_randi_range(int from, int to);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static uint godot_icall_GD_rand_seed(ulong seed, out ulong newSeed);

+ 7 - 2
modules/mono/glue/gd_glue.cpp

@@ -193,7 +193,11 @@ void godot_icall_GD_randomize() {
 	Math::randomize();
 }
 
-double godot_icall_GD_rand_range(double from, double to) {
+double godot_icall_GD_randf_range(double from, double to) {
+	return Math::random(from, to);
+}
+
+int32_t godot_icall_GD_randi_range(int32_t from, int32_t to) {
 	return Math::random(from, to);
 }
 
@@ -298,7 +302,8 @@ void godot_register_gd_icalls() {
 	mono_add_internal_call("Godot.GD::godot_icall_GD_randf", (void *)godot_icall_GD_randf);
 	mono_add_internal_call("Godot.GD::godot_icall_GD_randi", (void *)godot_icall_GD_randi);
 	mono_add_internal_call("Godot.GD::godot_icall_GD_randomize", (void *)godot_icall_GD_randomize);
-	mono_add_internal_call("Godot.GD::godot_icall_GD_rand_range", (void *)godot_icall_GD_rand_range);
+	mono_add_internal_call("Godot.GD::godot_icall_GD_randf_range", (void *)godot_icall_GD_randf_range);
+	mono_add_internal_call("Godot.GD::godot_icall_GD_randi_range", (void *)godot_icall_GD_randi_range);
 	mono_add_internal_call("Godot.GD::godot_icall_GD_rand_seed", (void *)godot_icall_GD_rand_seed);
 	mono_add_internal_call("Godot.GD::godot_icall_GD_seed", (void *)godot_icall_GD_seed);
 	mono_add_internal_call("Godot.GD::godot_icall_GD_str", (void *)godot_icall_GD_str);

+ 39 - 36
modules/visual_script/doc_classes/VisualScriptBuiltinFunc.xml

@@ -111,115 +111,118 @@
 		<constant name="MATH_RANDOMIZE" value="31" enum="BuiltinFunc">
 			Randomize the seed (or the internal state) of the random number generator. Current implementation reseeds using a number based on time.
 		</constant>
-		<constant name="MATH_RAND" value="32" enum="BuiltinFunc">
+		<constant name="MATH_RANDI" value="32" enum="BuiltinFunc">
 			Return a random 32 bits integer value. To obtain a random value between 0 to N (where N is smaller than 2^32 - 1), you can use it with the remainder function.
 		</constant>
 		<constant name="MATH_RANDF" value="33" enum="BuiltinFunc">
 			Return a random floating-point value between 0 and 1. To obtain a random value between 0 to N, you can use it with multiplication.
 		</constant>
-		<constant name="MATH_RANDOM" value="34" enum="BuiltinFunc">
+		<constant name="MATH_RANDF_RANGE" value="34" enum="BuiltinFunc">
 			Return a random floating-point value between the two inputs.
 		</constant>
-		<constant name="MATH_SEED" value="35" enum="BuiltinFunc">
+		<constant name="MATH_RANDI_RANGE" value="35" enum="BuiltinFunc">
+			Return a random 32-bit integer value between the two inputs.
+		</constant>
+		<constant name="MATH_SEED" value="36" enum="BuiltinFunc">
 			Set the seed for the random number generator.
 		</constant>
-		<constant name="MATH_RANDSEED" value="36" enum="BuiltinFunc">
+		<constant name="MATH_RANDSEED" value="37" enum="BuiltinFunc">
 			Return a random value from the given seed, along with the new seed.
 		</constant>
-		<constant name="MATH_DEG2RAD" value="37" enum="BuiltinFunc">
+		<constant name="MATH_DEG2RAD" value="38" enum="BuiltinFunc">
 			Convert the input from degrees to radians.
 		</constant>
-		<constant name="MATH_RAD2DEG" value="38" enum="BuiltinFunc">
+		<constant name="MATH_RAD2DEG" value="39" enum="BuiltinFunc">
 			Convert the input from radians to degrees.
 		</constant>
-		<constant name="MATH_LINEAR2DB" value="39" enum="BuiltinFunc">
+		<constant name="MATH_LINEAR2DB" value="40" enum="BuiltinFunc">
 			Convert the input from linear volume to decibel volume.
 		</constant>
-		<constant name="MATH_DB2LINEAR" value="40" enum="BuiltinFunc">
+		<constant name="MATH_DB2LINEAR" value="41" enum="BuiltinFunc">
 			Convert the input from decibel volume to linear volume.
 		</constant>
-		<constant name="MATH_POLAR2CARTESIAN" value="41" enum="BuiltinFunc">
+		<constant name="MATH_POLAR2CARTESIAN" value="42" enum="BuiltinFunc">
 			Converts a 2D point expressed in the polar coordinate system (a distance from the origin [code]r[/code] and an angle [code]th[/code]) to the cartesian coordinate system (X and Y axis).
 		</constant>
-		<constant name="MATH_CARTESIAN2POLAR" value="42" enum="BuiltinFunc">
+		<constant name="MATH_CARTESIAN2POLAR" value="43" enum="BuiltinFunc">
 			Converts a 2D point expressed in the cartesian coordinate system (X and Y axis) to the polar coordinate system (a distance from the origin and an angle).
 		</constant>
-		<constant name="MATH_WRAP" value="43" enum="BuiltinFunc">
+		<constant name="MATH_WRAP" value="44" enum="BuiltinFunc">
 		</constant>
-		<constant name="MATH_WRAPF" value="44" enum="BuiltinFunc">
+		<constant name="MATH_WRAPF" value="45" enum="BuiltinFunc">
 		</constant>
-		<constant name="LOGIC_MAX" value="45" enum="BuiltinFunc">
+		<constant name="LOGIC_MAX" value="46" enum="BuiltinFunc">
 			Return the greater of the two numbers, also known as their maximum.
 		</constant>
-		<constant name="LOGIC_MIN" value="46" enum="BuiltinFunc">
+		<constant name="LOGIC_MIN" value="47" enum="BuiltinFunc">
 			Return the lesser of the two numbers, also known as their minimum.
 		</constant>
-		<constant name="LOGIC_CLAMP" value="47" enum="BuiltinFunc">
+		<constant name="LOGIC_CLAMP" value="48" enum="BuiltinFunc">
 			Return the input clamped inside the given range, ensuring the result is never outside it. Equivalent to [code]min(max(input, range_low), range_high)[/code].
 		</constant>
-		<constant name="LOGIC_NEAREST_PO2" value="48" enum="BuiltinFunc">
+		<constant name="LOGIC_NEAREST_PO2" value="49" enum="BuiltinFunc">
 			Return the nearest power of 2 to the input.
 		</constant>
-		<constant name="OBJ_WEAKREF" value="49" enum="BuiltinFunc">
+		<constant name="OBJ_WEAKREF" value="50" enum="BuiltinFunc">
 			Create a [WeakRef] from the input.
 		</constant>
-		<constant name="FUNC_FUNCREF" value="50" enum="BuiltinFunc">
+		<constant name="FUNC_FUNCREF" value="51" enum="BuiltinFunc">
 			Create a [FuncRef] from the input.
 		</constant>
-		<constant name="TYPE_CONVERT" value="51" enum="BuiltinFunc">
+		<constant name="TYPE_CONVERT" value="52" enum="BuiltinFunc">
 			Convert between types.
 		</constant>
-		<constant name="TYPE_OF" value="52" enum="BuiltinFunc">
+		<constant name="TYPE_OF" value="53" enum="BuiltinFunc">
 			Return the type of the input as an integer. Check [enum Variant.Type] for the integers that might be returned.
 		</constant>
-		<constant name="TYPE_EXISTS" value="53" enum="BuiltinFunc">
+		<constant name="TYPE_EXISTS" value="54" enum="BuiltinFunc">
 			Checks if a type is registered in the [ClassDB].
 		</constant>
-		<constant name="TEXT_CHAR" value="54" enum="BuiltinFunc">
+		<constant name="TEXT_CHAR" value="55" enum="BuiltinFunc">
 			Return a character with the given ascii value.
 		</constant>
-		<constant name="TEXT_STR" value="55" enum="BuiltinFunc">
+		<constant name="TEXT_STR" value="56" enum="BuiltinFunc">
 			Convert the input to a string.
 		</constant>
-		<constant name="TEXT_PRINT" value="56" enum="BuiltinFunc">
+		<constant name="TEXT_PRINT" value="57" enum="BuiltinFunc">
 			Print the given string to the output window.
 		</constant>
-		<constant name="TEXT_PRINTERR" value="57" enum="BuiltinFunc">
+		<constant name="TEXT_PRINTERR" value="58" enum="BuiltinFunc">
 			Print the given string to the standard error output.
 		</constant>
-		<constant name="TEXT_PRINTRAW" value="58" enum="BuiltinFunc">
+		<constant name="TEXT_PRINTRAW" value="59" enum="BuiltinFunc">
 			Print the given string to the standard output, without adding a newline.
 		</constant>
-		<constant name="VAR_TO_STR" value="59" enum="BuiltinFunc">
+		<constant name="VAR_TO_STR" value="60" enum="BuiltinFunc">
 			Serialize a [Variant] to a string.
 		</constant>
-		<constant name="STR_TO_VAR" value="60" enum="BuiltinFunc">
+		<constant name="STR_TO_VAR" value="61" enum="BuiltinFunc">
 			Deserialize a [Variant] from a string serialized using [constant VAR_TO_STR].
 		</constant>
-		<constant name="VAR_TO_BYTES" value="61" enum="BuiltinFunc">
+		<constant name="VAR_TO_BYTES" value="62" enum="BuiltinFunc">
 			Serialize a [Variant] to a [PackedByteArray].
 		</constant>
-		<constant name="BYTES_TO_VAR" value="62" enum="BuiltinFunc">
+		<constant name="BYTES_TO_VAR" value="63" enum="BuiltinFunc">
 			Deserialize a [Variant] from a [PackedByteArray] serialized using [constant VAR_TO_BYTES].
 		</constant>
-		<constant name="COLORN" value="63" enum="BuiltinFunc">
+		<constant name="COLORN" value="64" enum="BuiltinFunc">
 			Return the [Color] with the given name and alpha ranging from 0 to 1.
 			[b]Note:[/b] Names are defined in [code]color_names.inc[/code].
 		</constant>
-		<constant name="MATH_SMOOTHSTEP" value="64" enum="BuiltinFunc">
+		<constant name="MATH_SMOOTHSTEP" value="65" enum="BuiltinFunc">
 			Return a number smoothly interpolated between the first two inputs, based on the third input. Similar to [constant MATH_LERP], but interpolates faster at the beginning and slower at the end. Using Hermite interpolation formula:
 			[codeblock]
 			var t = clamp((weight - from) / (to - from), 0.0, 1.0)
 			return t * t * (3.0 - 2.0 * t)
 			[/codeblock]
 		</constant>
-		<constant name="MATH_POSMOD" value="65" enum="BuiltinFunc">
+		<constant name="MATH_POSMOD" value="66" enum="BuiltinFunc">
 		</constant>
-		<constant name="MATH_LERP_ANGLE" value="66" enum="BuiltinFunc">
+		<constant name="MATH_LERP_ANGLE" value="67" enum="BuiltinFunc">
 		</constant>
-		<constant name="TEXT_ORD" value="67" enum="BuiltinFunc">
+		<constant name="TEXT_ORD" value="68" enum="BuiltinFunc">
 		</constant>
-		<constant name="FUNC_MAX" value="68" enum="BuiltinFunc">
+		<constant name="FUNC_MAX" value="69" enum="BuiltinFunc">
 			Represents the size of the [enum BuiltinFunc] enum.
 		</constant>
 	</constants>

+ 32 - 13
modules/visual_script/visual_script_builtin_funcs.cpp

@@ -73,7 +73,8 @@ const char *VisualScriptBuiltinFunc::func_name[VisualScriptBuiltinFunc::FUNC_MAX
 	"randomize",
 	"randi",
 	"randf",
-	"rand_range",
+	"randf_range",
+	"randi_range",
 	"seed",
 	"rand_seed",
 	"deg2rad",
@@ -143,7 +144,7 @@ bool VisualScriptBuiltinFunc::has_input_sequence_port() const {
 int VisualScriptBuiltinFunc::get_func_argument_count(BuiltinFunc p_func) {
 	switch (p_func) {
 		case MATH_RANDOMIZE:
-		case MATH_RAND:
+		case MATH_RANDI:
 		case MATH_RANDF:
 			return 0;
 		case MATH_SIN:
@@ -194,7 +195,8 @@ int VisualScriptBuiltinFunc::get_func_argument_count(BuiltinFunc p_func) {
 		case MATH_POW:
 		case MATH_EASE:
 		case MATH_STEPIFY:
-		case MATH_RANDOM:
+		case MATH_RANDF_RANGE:
+		case MATH_RANDI_RANGE:
 		case MATH_POLAR2CARTESIAN:
 		case MATH_CARTESIAN2POLAR:
 		case LOGIC_MAX:
@@ -361,16 +363,23 @@ PropertyInfo VisualScriptBuiltinFunc::get_input_value_port_info(int p_idx) const
 			}
 		} break;
 		case MATH_RANDOMIZE:
-		case MATH_RAND:
+		case MATH_RANDI:
 		case MATH_RANDF: {
 		} break;
-		case MATH_RANDOM: {
+		case MATH_RANDF_RANGE: {
 			if (p_idx == 0) {
 				return PropertyInfo(Variant::FLOAT, "from");
 			} else {
 				return PropertyInfo(Variant::FLOAT, "to");
 			}
 		} break;
+		case MATH_RANDI_RANGE: {
+			if (p_idx == 0) {
+				return PropertyInfo(Variant::INT, "from");
+			} else {
+				return PropertyInfo(Variant::INT, "to");
+			}
+		} break;
 		case MATH_SEED:
 		case MATH_RANDSEED: {
 			return PropertyInfo(Variant::INT, "seed");
@@ -551,13 +560,16 @@ PropertyInfo VisualScriptBuiltinFunc::get_output_value_port_info(int p_idx) cons
 		} break;
 		case MATH_RANDOMIZE: {
 		} break;
-		case MATH_RAND: {
+		case MATH_RANDI: {
 			t = Variant::INT;
 		} break;
 		case MATH_RANDF:
-		case MATH_RANDOM: {
+		case MATH_RANDF_RANGE: {
 			t = Variant::FLOAT;
 		} break;
+		case MATH_RANDI_RANGE: {
+			t = Variant::INT;
+		} break;
 		case MATH_SEED: {
 		} break;
 		case MATH_RANDSEED: {
@@ -861,17 +873,22 @@ void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_in
 			Math::randomize();
 
 		} break;
-		case VisualScriptBuiltinFunc::MATH_RAND: {
+		case VisualScriptBuiltinFunc::MATH_RANDI: {
 			*r_return = Math::rand();
 		} break;
 		case VisualScriptBuiltinFunc::MATH_RANDF: {
 			*r_return = Math::randf();
 		} break;
-		case VisualScriptBuiltinFunc::MATH_RANDOM: {
+		case VisualScriptBuiltinFunc::MATH_RANDF_RANGE: {
 			VALIDATE_ARG_NUM(0);
 			VALIDATE_ARG_NUM(1);
 			*r_return = Math::random((double)*p_inputs[0], (double)*p_inputs[1]);
 		} break;
+		case VisualScriptBuiltinFunc::MATH_RANDI_RANGE: {
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			*r_return = Math::random((int)*p_inputs[0], (int)*p_inputs[1]);
+		} break;
 		case VisualScriptBuiltinFunc::MATH_SEED: {
 			VALIDATE_ARG_NUM(0);
 			uint64_t seed = *p_inputs[0];
@@ -1283,9 +1300,10 @@ void VisualScriptBuiltinFunc::_bind_methods() {
 	BIND_ENUM_CONSTANT(MATH_MOVE_TOWARD);
 	BIND_ENUM_CONSTANT(MATH_DECTIME);
 	BIND_ENUM_CONSTANT(MATH_RANDOMIZE);
-	BIND_ENUM_CONSTANT(MATH_RAND);
+	BIND_ENUM_CONSTANT(MATH_RANDI);
 	BIND_ENUM_CONSTANT(MATH_RANDF);
-	BIND_ENUM_CONSTANT(MATH_RANDOM);
+	BIND_ENUM_CONSTANT(MATH_RANDF_RANGE);
+	BIND_ENUM_CONSTANT(MATH_RANDI_RANGE);
 	BIND_ENUM_CONSTANT(MATH_SEED);
 	BIND_ENUM_CONSTANT(MATH_RANDSEED);
 	BIND_ENUM_CONSTANT(MATH_DEG2RAD);
@@ -1375,9 +1393,10 @@ void register_visual_script_builtin_func_node() {
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/move_toward", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_MOVE_TOWARD>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/dectime", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_DECTIME>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randomize", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDOMIZE>);
-	VisualScriptLanguage::singleton->add_register_func("functions/built_in/rand", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RAND>);
+	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randi", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDI>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randf", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDF>);
-	VisualScriptLanguage::singleton->add_register_func("functions/built_in/random", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDOM>);
+	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randf_range", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDF_RANGE>);
+	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randi_range", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDI_RANGE>);
 
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/seed", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SEED>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randseed", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDSEED>);

+ 3 - 2
modules/visual_script/visual_script_builtin_funcs.h

@@ -70,9 +70,10 @@ public:
 		MATH_MOVE_TOWARD,
 		MATH_DECTIME,
 		MATH_RANDOMIZE,
-		MATH_RAND,
+		MATH_RANDI,
 		MATH_RANDF,
-		MATH_RANDOM,
+		MATH_RANDF_RANGE,
+		MATH_RANDI_RANGE,
 		MATH_SEED,
 		MATH_RANDSEED,
 		MATH_DEG2RAD,

+ 23 - 0
thirdparty/misc/pcg.cpp

@@ -25,8 +25,31 @@ void pcg32_srandom_r(pcg32_random_t* rng, uint64_t initstate, uint64_t initseq)
 }
 
 // Source from https://github.com/imneme/pcg-c-basic/blob/master/pcg_basic.c
+// pcg32_boundedrand_r(rng, bound):
+//     Generate a uniformly distributed number, r, where 0 <= r < bound
 uint32_t pcg32_boundedrand_r(pcg32_random_t *rng, uint32_t bound) {
+	// To avoid bias, we need to make the range of the RNG a multiple of
+	// bound, which we do by dropping output less than a threshold.
+	// A naive scheme to calculate the threshold would be to do
+	//
+	//     uint32_t threshold = 0x100000000ull % bound;
+	//
+	// but 64-bit div/mod is slower than 32-bit div/mod (especially on
+	// 32-bit platforms).  In essence, we do
+	//
+	//     uint32_t threshold = (0x100000000ull-bound) % bound;
+	//
+	// because this version will calculate the same modulus, but the LHS
+	// value is less than 2^32.
 	uint32_t threshold = -bound % bound;
+
+	// Uniformity guarantees that this loop will terminate.  In practice, it
+	// should usually terminate quickly; on average (assuming all bounds are
+	// equally likely), 82.25% of the time, we can expect it to require just
+	// one iteration.  In the worst case, someone passes a bound of 2^31 + 1
+	// (i.e., 2147483649), which invalidates almost 50% of the range.  In
+	// practice, bounds are typically small and only a tiny amount of the range
+	// is eliminated.
 	for (;;) {
 		uint32_t r = pcg32_random_r(rng);
 		if (r >= threshold)