Improve and clarify documentation for RandomNumberGenerator

doc/classes/@GlobalScope.xml

@@ -778,7 +778,7 @@
 			<return type="float">
 			</return>
 			<description>
-				Returns a random floating point value on the interval [code][0, 1][/code].
+				Returns a random floating point value between [code]0.0[/code] and [code]1.0[/code] (inclusive).
 				[codeblock]
 				randf() # Returns e.g. 0.375671
 				[/codeblock]
@@ -792,7 +792,7 @@
 			<argument index="1" name="to" type="float">
 			</argument>
 			<description>
-				Random range, any floating point value between [code]from[/code] and [code]to[/code].
+				Returns a random floating point value on the interval between [code]from[/code] and [code]to[/code] (inclusive).
 				[codeblock]
 				prints(randf_range(-10, 10), randf_range(-10, 10)) # Prints e.g. -3.844535 7.45315
 				[/codeblock]
@@ -819,7 +819,7 @@
 			<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.
+				Returns a random signed 32-bit integer 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

doc/classes/RandomNumberGenerator.xml

@@ -23,7 +23,7 @@
 			<return type="float">
 			</return>
 			<description>
-				Generates a pseudo-random float between [code]0.0[/code] and [code]1.0[/code] (inclusive).
+				Returns a pseudo-random float between [code]0.0[/code] and [code]1.0[/code] (inclusive).
 			</description>
 		</method>
 		<method name="randf_range">
@@ -34,7 +34,7 @@
 			<argument index="1" name="to" type="float">
 			</argument>
 			<description>
-				Generates a pseudo-random float between [code]from[/code] and [code]to[/code] (inclusive).
+				Returns a pseudo-random float between [code]from[/code] and [code]to[/code] (inclusive).
 			</description>
 		</method>
 		<method name="randfn">
@@ -45,14 +45,14 @@
 			<argument index="1" name="deviation" type="float" default="1.0">
 			</argument>
 			<description>
-				Generates a [url=https://en.wikipedia.org/wiki/Normal_distribution]normally-distributed[/url] pseudo-random number, using Box-Muller transform with the specified [code]mean[/code] and a standard [code]deviation[/code]. This is also called Gaussian distribution.
+				Returns a [url=https://en.wikipedia.org/wiki/Normal_distribution]normally-distributed[/url] pseudo-random number, using Box-Muller transform with the specified [code]mean[/code] and a standard [code]deviation[/code]. This is also called Gaussian distribution.
 			</description>
 		</method>
 		<method name="randi">
 			<return type="int">
 			</return>
 			<description>
-				Generates a pseudo-random 32-bit unsigned integer between [code]0[/code] and [code]4294967295[/code] (inclusive).
+				Returns a pseudo-random 32-bit unsigned integer between [code]0[/code] and [code]4294967295[/code] (inclusive).
 			</description>
 		</method>
 		<method name="randi_range">
@@ -63,14 +63,14 @@
 			<argument index="1" name="to" type="int">
 			</argument>
 			<description>
-				Generates a pseudo-random 32-bit signed integer between [code]from[/code] and [code]to[/code] (inclusive).
+				Returns a pseudo-random 32-bit signed integer between [code]from[/code] and [code]to[/code] (inclusive).
 			</description>
 		</method>
 		<method name="randomize">
 			<return type="void">
 			</return>
 			<description>
-				Setups a time-based seed to generator.
+				Setups a time-based seed to for this [RandomNumberGenerator] instance. Unlike the [@GlobalScope] random number generation functions, different [RandomNumberGenerator] instances can use different seeds.
 			</description>
 		</method>
 	</methods>