diff options
Diffstat (limited to 'modules/gdscript/doc_classes')
| -rw-r--r-- | modules/gdscript/doc_classes/@GDScript.xml | 256 | ||||
| -rw-r--r-- | modules/gdscript/doc_classes/GDScript.xml | 2 | ||||
| -rw-r--r-- | modules/gdscript/doc_classes/GDScriptFunctionState.xml | 45 |
3 files changed, 117 insertions, 186 deletions
diff --git a/modules/gdscript/doc_classes/@GDScript.xml b/modules/gdscript/doc_classes/@GDScript.xml index c86b974f47..4ed129b3ff 100644 --- a/modules/gdscript/doc_classes/@GDScript.xml +++ b/modules/gdscript/doc_classes/@GDScript.xml @@ -7,6 +7,7 @@ List of core built-in GDScript functions. Math functions and other utilities. Everything else is provided by objects. (Keywords: builtin, built in, global functions.) </description> <tutorials> + <link title="Random number generation">https://docs.godotengine.org/en/latest/tutorials/math/random_number_generation.html</link> </tutorials> <methods> <method name="Color8"> @@ -54,8 +55,7 @@ <description> Returns the absolute value of parameter [code]s[/code] (i.e. positive value). [codeblock] - # a is 1 - a = abs(-1) + a = abs(-1) # a is 1 [/codeblock] </description> </method> @@ -93,14 +93,15 @@ <argument index="1" name="message" type="String" default=""""> </argument> <description> - Asserts that the [code]condition[/code] is [code]true[/code]. If the [code]condition[/code] is [code]false[/code], an error is generated and the program is halted until you resume it. Only executes in debug builds, or when running the game from the editor. Use it for debugging purposes, to make sure a statement is [code]true[/code] during development. + Asserts that the [code]condition[/code] is [code]true[/code]. If the [code]condition[/code] is [code]false[/code], an error is generated. When running from the editor, the running project will also be paused until you resume it. This can be used as a stronger form of [method push_error] for reporting errors to project developers or add-on users. + [b]Note:[/b] For performance reasons, the code inside [method assert] is only executed in debug builds or when running the project from the editor. Don't include code that has side effects in an [method assert] call. Otherwise, the project will behave differently when exported in release mode. The optional [code]message[/code] argument, if given, is shown in addition to the generic "Assertion failed" message. You can use this to provide additional details about why the assertion failed. [codeblock] - # Imagine we always want speed to be between 0 and 20 - speed = -10 + # Imagine we always want speed to be between 0 and 20. + var speed = -10 assert(speed < 20) # True, the program will continue assert(speed >= 0) # False, the program will stop - assert(speed >= 0 && speed < 20) # You can also combine the two conditional statements in one check + assert(speed >= 0 and speed < 20) # You can also combine the two conditional statements in one check assert(speed < 20, "speed = %f, but the speed limit is 20" % speed) # Show a message with clarifying details [/codeblock] </description> @@ -112,7 +113,7 @@ </argument> <description> Returns the arc tangent of [code]s[/code] in radians. Use it to get the angle from an angle's tangent in trigonometry: [code]atan(tan(angle)) == angle[/code]. - The method cannot know in which quadrant the angle should fall. See [method atan2] if you have both [code]y[code] and [code]x[/code]. + The method cannot know in which quadrant the angle should fall. See [method atan2] if you have both [code]y[/code] and [code]x[/code]. [codeblock] a = atan(0.5) # a is 0.463648 [/codeblock] @@ -164,9 +165,10 @@ <description> Rounds [code]s[/code] upward (towards positive infinity), returning the smallest whole number that is not less than [code]s[/code]. [codeblock] - i = ceil(1.45) # i is 2 - i = ceil(1.001) # i is 2 + a = ceil(1.45) # a is 2.0 + a = ceil(1.001) # a is 2.0 [/codeblock] + See also [method floor], [method round], [method stepify], and [int]. </description> </method> <method name="char"> @@ -196,13 +198,9 @@ <description> Clamps [code]value[/code] and returns a value not less than [code]min[/code] and not more than [code]max[/code]. [codeblock] - speed = 1000 - # a is 20 - a = clamp(speed, 1, 20) - - speed = -10 - # a is 1 - a = clamp(speed, 1, 20) + a = clamp(1000, 1, 20) # a is 20 + a = clamp(-10, 1, 20) # a is 1 + a = clamp(15, 1, 20) # a is 15 [/codeblock] </description> </method> @@ -233,9 +231,8 @@ <description> Returns the cosine of angle [code]s[/code] in radians. [codeblock] - # Prints 1 then -1 - print(cos(PI * 2)) - print(cos(PI)) + a = cos(TAU) # a is 1.0 + a = cos(PI) # a is -1.0 [/codeblock] </description> </method> @@ -247,8 +244,7 @@ <description> Returns the hyperbolic cosine of [code]s[/code] in radians. [codeblock] - # Prints 1.543081 - print(cosh(1)) + print(cosh(1)) # Prints 1.543081 [/codeblock] </description> </method> @@ -273,8 +269,7 @@ <description> Returns the result of [code]value[/code] decreased by [code]step[/code] * [code]amount[/code]. [codeblock] - # a = 59 - a = dectime(60, 10, 0.1)) + a = dectime(60, 10, 0.1)) # a is 59.0 [/codeblock] </description> </method> @@ -286,8 +281,7 @@ <description> Converts an angle expressed in degrees to radians. [codeblock] - # r is 3.141593 - r = deg2rad(180) + r = deg2rad(180) # r is 3.141593 [/codeblock] </description> </method> @@ -297,7 +291,7 @@ <argument index="0" name="dict" type="Dictionary"> </argument> <description> - Converts a previously converted instance to a dictionary, back into an instance. Useful for deserializing. + Converts a dictionary (previously created with [method inst2dict]) back to an instance. Useful for deserializing. </description> </method> <method name="ease"> @@ -333,12 +327,12 @@ <description> Rounds [code]s[/code] downward (towards negative infinity), returning the largest whole number that is not more than [code]s[/code]. [codeblock] - # a is 2.0 - a = floor(2.99) - # a is -3.0 - a = floor(-2.99) + a = floor(2.45) # a is 2.0 + a = floor(2.99) # a is 2.0 + a = floor(-2.99) # a is -3.0 [/codeblock] - [b]Note:[/b] This method returns a float. If you need an integer, you can use [code]int(s)[/code] directly. + See also [method ceil], [method round], [method stepify], and [int]. + [b]Note:[/b] This method returns a float. If you need an integer and [code]s[/code] is a non-negative number, you can use [code]int(s)[/code] directly. </description> </method> <method name="fmod"> @@ -351,8 +345,7 @@ <description> Returns the floating-point remainder of [code]a/b[/code], keeping the sign of [code]a[/code]. [codeblock] - # Remainder is 1.5 - var remainder = fmod(7, 5.5) + r = fmod(7, 5.5) # r is 1.5 [/codeblock] For the integer remainder operation, use the % operator. </description> @@ -367,42 +360,19 @@ <description> Returns the floating-point modulus of [code]a/b[/code] that wraps equally in positive and negative. [codeblock] - var i = -6 - while i < 5: - prints(i, fposmod(i, 3)) - i += 1 + for i in 7: + var x = 0.5 * i - 1.5 + print("%4.1f %4.1f %4.1f" % [x, fmod(x, 1.5), fposmod(x, 1.5)]) [/codeblock] Produces: [codeblock] - -6 0 - -5 1 - -4 2 - -3 0 - -2 1 - -1 2 - 0 0 - 1 1 - 2 2 - 3 0 - 4 1 - [/codeblock] - </description> - </method> - <method name="funcref"> - <return type="FuncRef"> - </return> - <argument index="0" name="instance" type="Object"> - </argument> - <argument index="1" name="funcname" type="String"> - </argument> - <description> - Returns a reference to the specified function [code]funcname[/code] in the [code]instance[/code] node. As functions aren't first-class objects in GDscript, use [code]funcref[/code] to store a [FuncRef] in a variable and call it later. - [codeblock] - func foo(): - return("bar") - - a = funcref(self, "foo") - print(a.call_func()) # Prints bar + -1.5 -0.0 0.0 + -1.0 -1.0 0.5 + -0.5 -0.5 1.0 + 0.0 0.0 0.0 + 0.5 0.5 0.5 + 1.0 1.0 1.0 + 1.5 0.0 0.0 [/codeblock] </description> </method> @@ -630,6 +600,7 @@ var main = load("res://main.tscn") # main will contain a PackedScene resource. [/codeblock] [b]Important:[/b] The path must be absolute, a local path will just return [code]null[/code]. + This method is a simplified version of [method ResourceLoader.load], which can be used for more advanced scenarios. </description> </method> <method name="log"> @@ -735,16 +706,17 @@ <argument index="0" name="json" type="String"> </argument> <description> - Parse JSON text to a Variant (use [method typeof] to check if it is what you expect). - Be aware that the JSON specification does not define integer or float types, but only a number type. Therefore, parsing a JSON text will convert all numerical values to [float] types. - Note that JSON objects do not preserve key order like Godot dictionaries, thus you should not rely on keys being in a certain order if a dictionary is constructed from JSON. In contrast, JSON arrays retain the order of their elements: + Parse JSON text to a Variant. (Use [method typeof] to check if the Variant's type is what you expect.) + [b]Note:[/b] The JSON specification does not define integer or float types, but only a [i]number[/i] type. Therefore, parsing a JSON text will convert all numerical values to [float] types. + [b]Note:[/b] JSON objects do not preserve key order like Godot dictionaries, thus, you should not rely on keys being in a certain order if a dictionary is constructed from JSON. In contrast, JSON arrays retain the order of their elements: [codeblock] - p = parse_json('["a", "b", "c"]') - if typeof(p) == TYPE_ARRAY: - print(p[0]) # Prints a + var p = JSON.parse('["hello", "world", "!"]') + if typeof(p.result) == TYPE_ARRAY: + print(p.result[0]) # Prints "hello" else: - print("unexpected results") + push_error("Unexpected results.") [/codeblock] + See also [JSON] for an alternative way to parse JSON text. </description> </method> <method name="polar2cartesian"> @@ -768,24 +740,18 @@ <description> Returns the integer modulus of [code]a/b[/code] that wraps equally in positive and negative. [codeblock] - var i = -6 - while i < 5: - prints(i, posmod(i, 3)) - i += 1 + for i in range(-3, 4): + print("%2d %2d %2d" % [i, i % 3, posmod(i, 3)]) [/codeblock] Produces: [codeblock] - -6 0 - -5 1 - -4 2 - -3 0 - -2 1 - -1 2 - 0 0 - 1 1 - 2 2 - 3 0 - 4 1 + -3 0 0 + -2 -2 1 + -1 -1 2 + 0 0 0 + 1 1 1 + 2 2 2 + 3 0 0 [/codeblock] </description> </method> @@ -797,9 +763,9 @@ <argument index="1" name="exp" type="float"> </argument> <description> - Returns the result of [code]x[/code] raised to the power of [code]y[/code]. + Returns the result of [code]base[/code] raised to the power of [code]exp[/code]. [codeblock] - pow(2, 5) # Returns 32 + pow(2, 5) # Returns 32.0 [/codeblock] </description> </method> @@ -824,8 +790,9 @@ Converts one or more arguments to strings in the best way possible and prints them to the console. [codeblock] a = [1, 2, 3] - print("a", "b", a) # Prints ab[1, 2, 3] + print("a", "=", a) # Prints a=[1, 2, 3] [/codeblock] + [b]Note:[/b] Consider using [method push_error] and [method push_warning] to print error and warning messages instead of [method print]. This distinguishes them from print messages used for debugging purposes, while also displaying a stack trace when an error or warning is printed. </description> </method> <method name="print_debug" qualifiers="vararg"> @@ -899,6 +866,7 @@ [codeblock] push_error("test error") # Prints "test error" to debugger and terminal as error call [/codeblock] + [b]Note:[/b] Errors printed this way will not pause project execution. To print an error message and pause project execution in debug builds, use [code]assert(false, "test error")[/code] instead. </description> </method> <method name="push_warning"> @@ -921,21 +889,7 @@ <description> Converts an angle expressed in radians to degrees. [codeblock] - rad2deg(0.523599) # Returns 30 - [/codeblock] - </description> - </method> - <method name="rand_range"> - <return type="float"> - </return> - <argument index="0" name="from" type="float"> - </argument> - <argument index="1" name="to" type="float"> - </argument> - <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 + rad2deg(0.523599) # Returns 30.0 [/codeblock] </description> </method> @@ -958,6 +912,20 @@ [/codeblock] </description> </method> + <method name="randf_range"> + <return type="float"> + </return> + <argument index="0" name="from" type="float"> + </argument> + <argument index="1" name="to" type="float"> + </argument> + <description> + Random range, any floating point value between [code]from[/code] and [code]to[/code]. + [codeblock] + prints(randf_range(-10, 10), randf_range(-10, 10)) # Prints e.g. -3.844535 7.45315 + [/codeblock] + </description> + </method> <method name="randi"> <return type="int"> </return> @@ -971,6 +939,21 @@ [/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> <method name="randomize"> <return type="void"> </return> @@ -988,27 +971,15 @@ <description> Returns an array with the given range. Range can be 1 argument N (0 to N-1), two arguments (initial, final-1) or three arguments (initial, final-1, increment). [codeblock] - for i in range(4): - print(i) - for i in range(2, 5): - print(i) - for i in range(0, 6, 2): - print(i) + print(range(4)) + print(range(2, 5)) + print(range(0, 6, 2)) [/codeblock] Output: [codeblock] - 0 - 1 - 2 - 3 - - 2 - 3 - 4 - - 0 - 2 - 4 + [0, 1, 2, 3] + [2, 3, 4] + [0, 2, 4] [/codeblock] </description> </method> @@ -1040,8 +1011,11 @@ <description> Rounds [code]s[/code] to the nearest whole number, with halfway cases rounded away from zero. [codeblock] - round(2.6) # Returns 3 + a = round(2.49) # a is 2.0 + a = round(2.5) # a is 3.0 + a = round(2.51) # a is 3.0 [/codeblock] + See also [method floor], [method ceil], [method stepify], and [int]. </description> </method> <method name="seed"> @@ -1111,9 +1085,9 @@ This S-shaped curve is the cubic Hermite interpolator, given by [code]f(s) = 3*s^2 - 2*s^3[/code]. [codeblock] smoothstep(0, 2, -5.0) # Returns 0.0 - smoothstep(0, 2, 0.5) # Returns 0.15625 - smoothstep(0, 2, 1.0) # Returns 0.5 - smoothstep(0, 2, 2.0) # Returns 1.0 + smoothstep(0, 2, 0.5) # Returns 0.15625 + smoothstep(0, 2, 1.0) # Returns 0.5 + smoothstep(0, 2, 2.0) # Returns 1.0 [/codeblock] </description> </method> @@ -1138,12 +1112,9 @@ <description> Returns the position of the first non-zero digit, after the decimal point. Note that the maximum return value is 10, which is a design decision in the implementation. [codeblock] - # n is 0 - n = step_decimals(5) - # n is 4 - n = step_decimals(1.0005) - # n is 9 - n = step_decimals(0.000000005) + n = step_decimals(5) # n is 0 + n = step_decimals(1.0005) # n is 4 + n = step_decimals(0.000000005) # n is 9 [/codeblock] </description> </method> @@ -1157,9 +1128,10 @@ <description> Snaps float value [code]s[/code] to a given [code]step[/code]. This can also be used to round a floating point number to an arbitrary number of decimals. [codeblock] - stepify(100, 32) # Returns 96 + stepify(100, 32) # Returns 96.0 stepify(3.14159, 0.01) # Returns 3.14 [/codeblock] + See also [method ceil], [method floor], [method round], and [int]. </description> </method> <method name="str" qualifiers="vararg"> @@ -1209,8 +1181,8 @@ <description> Returns the hyperbolic tangent of [code]s[/code]. [codeblock] - a = log(2.0) # Returns 0.693147 - tanh(a) # Returns 0.6 + a = log(2.0) # a is 0.693147 + b = tanh(a) # b is 0.6 [/codeblock] </description> </method> @@ -1220,12 +1192,16 @@ <argument index="0" name="var" type="Variant"> </argument> <description> - Converts a Variant [code]var[/code] to JSON text and return the result. Useful for serializing data to store or send over the network. + Converts a [Variant] [code]var[/code] to JSON text and return the result. Useful for serializing data to store or send over the network. [codeblock] + # Both numbers below are integers. a = { "a": 1, "b": 2 } b = to_json(a) print(b) # {"a":1, "b":2} + # Both numbers above are floats, even if they display without any decimal places. [/codeblock] + [b]Note:[/b] The JSON specification does not define integer or float types, but only a [i]number[/i] type. Therefore, converting a [Variant] to JSON text will convert all numerical values to [float] types. + See also [JSON] for an alternative way to convert a [Variant] to JSON text. </description> </method> <method name="type_exists"> @@ -1268,9 +1244,9 @@ j = to_json([1, 2, 3]) v = validate_json(j) if not v: - print("valid") + print("Valid JSON.") else: - prints("invalid", v) + push_error("Invalid JSON: " + v) [/codeblock] </description> </method> diff --git a/modules/gdscript/doc_classes/GDScript.xml b/modules/gdscript/doc_classes/GDScript.xml index 62ccb93901..631a102130 100644 --- a/modules/gdscript/doc_classes/GDScript.xml +++ b/modules/gdscript/doc_classes/GDScript.xml @@ -8,7 +8,7 @@ [method new] creates a new instance of the script. [method Object.set_script] extends an existing object, if that object's class matches one of the script's base classes. </description> <tutorials> - <link>https://docs.godotengine.org/en/latest/getting_started/scripting/gdscript/index.html</link> + <link title="GDScript tutorial index">https://docs.godotengine.org/en/latest/getting_started/scripting/gdscript/index.html</link> </tutorials> <methods> <method name="get_as_byte_code" qualifiers="const"> diff --git a/modules/gdscript/doc_classes/GDScriptFunctionState.xml b/modules/gdscript/doc_classes/GDScriptFunctionState.xml deleted file mode 100644 index 5e369b32d9..0000000000 --- a/modules/gdscript/doc_classes/GDScriptFunctionState.xml +++ /dev/null @@ -1,45 +0,0 @@ -<?xml version="1.0" encoding="UTF-8" ?> -<class name="GDScriptFunctionState" inherits="Reference" version="4.0"> - <brief_description> - State of a function call after yielding. - </brief_description> - <description> - FIXME: Outdated docs as of GDScript rewrite in 4.0. - Calling [code]yield[/code] within a function will cause that function to yield and return its current state as an object of this type. The yielded function call can then be resumed later by calling [method resume] on this state object. - </description> - <tutorials> - </tutorials> - <methods> - <method name="is_valid" qualifiers="const"> - <return type="bool"> - </return> - <argument index="0" name="extended_check" type="bool" default="false"> - </argument> - <description> - Check whether the function call may be resumed. This is not the case if the function state was already resumed. - If [code]extended_check[/code] is enabled, it also checks if the associated script and object still exist. The extended check is done in debug mode as part of [method GDScriptFunctionState.resume], but you can use this if you know you may be trying to resume without knowing for sure the object and/or script have survived up to that point. - </description> - </method> - <method name="resume"> - <return type="Variant"> - </return> - <argument index="0" name="arg" type="Variant" default="null"> - </argument> - <description> - Resume execution of the yielded function call. - If handed an argument, return the argument from the [code]yield[/code] call in the yielded function call. You can pass e.g. an [Array] to hand multiple arguments. - This function returns what the resumed function call returns, possibly another function state if yielded again. - </description> - </method> - </methods> - <signals> - <signal name="completed"> - <argument index="0" name="result" type="Variant"> - </argument> - <description> - </description> - </signal> - </signals> - <constants> - </constants> -</class> |