class_int.rst 23 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512
  1. :github_url: hide
  2. .. Generated automatically by doc/tools/make_rst.py in Godot's source tree.
  3. .. DO NOT EDIT THIS FILE, but the int.xml source instead.
  4. .. The source is found in doc/classes or modules/<name>/doc_classes.
  5. .. _class_int:
  6. int
  7. ===
  8. Integer built-in type.
  9. Description
  10. -----------
  11. Signed 64-bit integer type.
  12. It can take values in the interval ``[-2^63, 2^63 - 1]``, i.e. ``[-9223372036854775808, 9223372036854775807]``. Exceeding those bounds will wrap around.
  13. \ ``int`` is a :ref:`Variant<class_Variant>` type, and will thus be used when assigning an integer value to a :ref:`Variant<class_Variant>`. It can also be enforced with the ``: int`` type hint.
  14. .. tabs::
  15. .. code-tab:: gdscript
  16. var my_variant = 0 # int, value 0.
  17. my_variant += 4.2 # float, value 4.2.
  18. var my_int: int = 1 # int, value 1.
  19. my_int = 4.2 # int, value 4, the right value is implicitly cast to int.
  20. my_int = int("6.7") # int, value 6, the String is explicitly cast with int.
  21. var max_int = 9223372036854775807
  22. print(max_int) # 9223372036854775807, OK.
  23. max_int += 1
  24. print(max_int) # -9223372036854775808, we overflowed and wrapped around.
  25. .. code-tab:: csharp
  26. int myInt = (int)"6.7".ToFloat(); // int, value 6, the String is explicitly cast with int.
  27. // We have to use `long` here, because GDSript's `int`
  28. // is 64 bits long while C#'s `int` is only 32 bits.
  29. long maxInt = 9223372036854775807;
  30. GD.Print(maxInt); // 9223372036854775807, OK.
  31. maxInt++;
  32. GD.Print(maxInt); // -9223372036854775808, we overflowed and wrapped around.
  33. // Alternatively, if we used C#'s 32-bit `int` type, the maximum value is much smaller:
  34. int halfInt = 2147483647;
  35. GD.Print(halfInt); // 2147483647, OK.
  36. halfInt++;
  37. GD.Print(halfInt); // -2147483648, we overflowed and wrapped around.
  38. Constructors
  39. ------------
  40. +-----------------------+----------------------------------------------------------------------------------+
  41. | :ref:`int<class_int>` | :ref:`int<class_int_constructor_int>` **(** **)** |
  42. +-----------------------+----------------------------------------------------------------------------------+
  43. | :ref:`int<class_int>` | :ref:`int<class_int_constructor_int>` **(** :ref:`int<class_int>` from **)** |
  44. +-----------------------+----------------------------------------------------------------------------------+
  45. | :ref:`int<class_int>` | :ref:`int<class_int_constructor_int>` **(** :ref:`bool<class_bool>` from **)** |
  46. +-----------------------+----------------------------------------------------------------------------------+
  47. | :ref:`int<class_int>` | :ref:`int<class_int_constructor_int>` **(** :ref:`float<class_float>` from **)** |
  48. +-----------------------+----------------------------------------------------------------------------------+
  49. Operators
  50. ---------
  51. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  52. | :ref:`bool<class_bool>` | :ref:`operator !=<class_int_operator_neq_bool>` **(** **)** |
  53. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  54. | :ref:`bool<class_bool>` | :ref:`operator !=<class_int_operator_neq_bool>` **(** :ref:`float<class_float>` right **)** |
  55. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  56. | :ref:`bool<class_bool>` | :ref:`operator !=<class_int_operator_neq_bool>` **(** :ref:`int<class_int>` right **)** |
  57. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  58. | :ref:`int<class_int>` | :ref:`operator %<class_int_operator_mod_int>` **(** :ref:`int<class_int>` right **)** |
  59. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  60. | :ref:`int<class_int>` | :ref:`operator &<class_int_operator_bwand_int>` **(** :ref:`int<class_int>` right **)** |
  61. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  62. | :ref:`Color<class_Color>` | :ref:`operator *<class_int_operator_mul_Color>` **(** :ref:`Color<class_Color>` right **)** |
  63. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  64. | :ref:`Quaternion<class_Quaternion>` | :ref:`operator *<class_int_operator_mul_Quaternion>` **(** :ref:`Quaternion<class_Quaternion>` right **)** |
  65. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  66. | :ref:`Vector2<class_Vector2>` | :ref:`operator *<class_int_operator_mul_Vector2>` **(** :ref:`Vector2<class_Vector2>` right **)** |
  67. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  68. | :ref:`Vector2i<class_Vector2i>` | :ref:`operator *<class_int_operator_mul_Vector2i>` **(** :ref:`Vector2i<class_Vector2i>` right **)** |
  69. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  70. | :ref:`Vector3<class_Vector3>` | :ref:`operator *<class_int_operator_mul_Vector3>` **(** :ref:`Vector3<class_Vector3>` right **)** |
  71. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  72. | :ref:`Vector3i<class_Vector3i>` | :ref:`operator *<class_int_operator_mul_Vector3i>` **(** :ref:`Vector3i<class_Vector3i>` right **)** |
  73. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  74. | :ref:`float<class_float>` | :ref:`operator *<class_int_operator_mul_float>` **(** :ref:`float<class_float>` right **)** |
  75. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  76. | :ref:`int<class_int>` | :ref:`operator *<class_int_operator_mul_int>` **(** :ref:`int<class_int>` right **)** |
  77. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  78. | :ref:`String<class_String>` | :ref:`operator +<class_int_operator_sum_String>` **(** :ref:`String<class_String>` right **)** |
  79. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  80. | :ref:`float<class_float>` | :ref:`operator +<class_int_operator_sum_float>` **(** :ref:`float<class_float>` right **)** |
  81. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  82. | :ref:`int<class_int>` | :ref:`operator +<class_int_operator_sum_int>` **(** :ref:`int<class_int>` right **)** |
  83. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  84. | :ref:`float<class_float>` | :ref:`operator -<class_int_operator_dif_float>` **(** :ref:`float<class_float>` right **)** |
  85. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  86. | :ref:`int<class_int>` | :ref:`operator -<class_int_operator_dif_int>` **(** :ref:`int<class_int>` right **)** |
  87. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  88. | :ref:`float<class_float>` | :ref:`operator /<class_int_operator_div_float>` **(** :ref:`float<class_float>` right **)** |
  89. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  90. | :ref:`int<class_int>` | :ref:`operator /<class_int_operator_div_int>` **(** :ref:`int<class_int>` right **)** |
  91. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  92. | :ref:`bool<class_bool>` | :ref:`operator <<class_int_operator_lt_bool>` **(** :ref:`float<class_float>` right **)** |
  93. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  94. | :ref:`bool<class_bool>` | :ref:`operator <<class_int_operator_lt_bool>` **(** :ref:`int<class_int>` right **)** |
  95. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  96. | :ref:`int<class_int>` | :ref:`operator <<<class_int_operator_bwsl_int>` **(** :ref:`int<class_int>` right **)** |
  97. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  98. | :ref:`bool<class_bool>` | :ref:`operator <=<class_int_operator_lte_bool>` **(** :ref:`float<class_float>` right **)** |
  99. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  100. | :ref:`bool<class_bool>` | :ref:`operator <=<class_int_operator_lte_bool>` **(** :ref:`int<class_int>` right **)** |
  101. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  102. | :ref:`bool<class_bool>` | :ref:`operator ==<class_int_operator_eq_bool>` **(** **)** |
  103. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  104. | :ref:`bool<class_bool>` | :ref:`operator ==<class_int_operator_eq_bool>` **(** :ref:`float<class_float>` right **)** |
  105. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  106. | :ref:`bool<class_bool>` | :ref:`operator ==<class_int_operator_eq_bool>` **(** :ref:`int<class_int>` right **)** |
  107. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  108. | :ref:`bool<class_bool>` | :ref:`operator ><class_int_operator_gt_bool>` **(** :ref:`float<class_float>` right **)** |
  109. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  110. | :ref:`bool<class_bool>` | :ref:`operator ><class_int_operator_gt_bool>` **(** :ref:`int<class_int>` right **)** |
  111. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  112. | :ref:`bool<class_bool>` | :ref:`operator >=<class_int_operator_gte_bool>` **(** :ref:`float<class_float>` right **)** |
  113. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  114. | :ref:`bool<class_bool>` | :ref:`operator >=<class_int_operator_gte_bool>` **(** :ref:`int<class_int>` right **)** |
  115. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  116. | :ref:`int<class_int>` | :ref:`operator >><class_int_operator_bwsr_int>` **(** :ref:`int<class_int>` right **)** |
  117. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  118. | :ref:`int<class_int>` | :ref:`operator ^<class_int_operator_bwxor_int>` **(** :ref:`int<class_int>` right **)** |
  119. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  120. | :ref:`int<class_int>` | :ref:`operator unary+<class_int_operator_unplus_int>` **(** **)** |
  121. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  122. | :ref:`int<class_int>` | :ref:`operator unary-<class_int_operator_unminus_int>` **(** **)** |
  123. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  124. | :ref:`int<class_int>` | :ref:`operator |<class_int_operator_bwor_int>` **(** :ref:`int<class_int>` right **)** |
  125. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  126. | :ref:`int<class_int>` | :ref:`operator ~<class_int_operator_bwnot_int>` **(** **)** |
  127. +-------------------------------------+------------------------------------------------------------------------------------------------------------+
  128. Constructor Descriptions
  129. ------------------------
  130. .. _class_int_constructor_int:
  131. - :ref:`int<class_int>` **int** **(** **)**
  132. Constructs a default-initialized ``int`` set to ``0``.
  133. ----
  134. - :ref:`int<class_int>` **int** **(** :ref:`int<class_int>` from **)**
  135. Constructs an ``int`` as a copy of the given ``int``.
  136. ----
  137. - :ref:`int<class_int>` **int** **(** :ref:`bool<class_bool>` from **)**
  138. Cast a :ref:`bool<class_bool>` value to an integer value, ``int(true)`` will be equals to 1 and ``int(false)`` will be equals to 0.
  139. ----
  140. - :ref:`int<class_int>` **int** **(** :ref:`float<class_float>` from **)**
  141. Cast a float value to an integer value, this method simply removes the number fractions (i.e. rounds ``from`` towards zero), so for example ``int(2.7)`` will be equals to 2, ``int(0.1)`` will be equals to 0 and ``int(-2.7)`` will be equals to -2. This operation is also called truncation.
  142. Operator Descriptions
  143. ---------------------
  144. .. _class_int_operator_neq_bool:
  145. - :ref:`bool<class_bool>` **operator !=** **(** **)**
  146. ----
  147. - :ref:`bool<class_bool>` **operator !=** **(** :ref:`float<class_float>` right **)**
  148. Returns ``true`` if operands are different from each other.
  149. ----
  150. - :ref:`bool<class_bool>` **operator !=** **(** :ref:`int<class_int>` right **)**
  151. Returns ``true`` if operands are different from each other.
  152. ----
  153. .. _class_int_operator_mod_int:
  154. - :ref:`int<class_int>` **operator %** **(** :ref:`int<class_int>` right **)**
  155. Returns the remainder after dividing two integers. This operation uses truncated division, which is often not desired as it does not work well with negative numbers. Consider using :ref:`@GlobalScope.posmod<class_@GlobalScope_method_posmod>` instead if you want to handle negative numbers.
  156. ::
  157. print(5 % 2) # 1
  158. print(12 % 4) # 0
  159. print(-5 % 3) # -2
  160. ----
  161. .. _class_int_operator_bwand_int:
  162. - :ref:`int<class_int>` **operator &** **(** :ref:`int<class_int>` right **)**
  163. Returns the result of bitwise ``AND`` operation for two integers.
  164. ::
  165. print(3 & 1) # 1
  166. print(11 & 3) # 3
  167. It's useful to retrieve binary flags from a variable.
  168. ::
  169. var flags = 5
  170. # Do something if the first bit is enabled.
  171. if flags & 1:
  172. do_stuff()
  173. ----
  174. .. _class_int_operator_mul_Color:
  175. - :ref:`Color<class_Color>` **operator *** **(** :ref:`Color<class_Color>` right **)**
  176. Multiplies each component of the :ref:`Color<class_Color>` by the given ``int``.
  177. ----
  178. - :ref:`Quaternion<class_Quaternion>` **operator *** **(** :ref:`Quaternion<class_Quaternion>` right **)**
  179. Multiplies each component of the :ref:`Quaternion<class_Quaternion>` by the given ``int``. This operation is not meaningful on its own, but it can be used as a part of a larger expression.
  180. ----
  181. - :ref:`Vector2<class_Vector2>` **operator *** **(** :ref:`Vector2<class_Vector2>` right **)**
  182. Multiplies each component of the :ref:`Vector2<class_Vector2>` by the given ``int``.
  183. ::
  184. print(2 * Vector2(1, 1)) # Vector2(2, 2)
  185. ----
  186. - :ref:`Vector2i<class_Vector2i>` **operator *** **(** :ref:`Vector2i<class_Vector2i>` right **)**
  187. Multiplies each component of the :ref:`Vector2i<class_Vector2i>` by the given ``int``.
  188. ----
  189. - :ref:`Vector3<class_Vector3>` **operator *** **(** :ref:`Vector3<class_Vector3>` right **)**
  190. Multiplies each component of the :ref:`Vector3<class_Vector3>` by the given ``int``.
  191. ----
  192. - :ref:`Vector3i<class_Vector3i>` **operator *** **(** :ref:`Vector3i<class_Vector3i>` right **)**
  193. Multiplies each component of the :ref:`Vector3i<class_Vector3i>` by the given ``int``.
  194. ----
  195. - :ref:`float<class_float>` **operator *** **(** :ref:`float<class_float>` right **)**
  196. Multiplies an ``int`` and a :ref:`float<class_float>`. The result is a :ref:`float<class_float>`.
  197. ----
  198. - :ref:`int<class_int>` **operator *** **(** :ref:`int<class_int>` right **)**
  199. Multiplies two ``int``\ s.
  200. ----
  201. .. _class_int_operator_sum_String:
  202. - :ref:`String<class_String>` **operator +** **(** :ref:`String<class_String>` right **)**
  203. Adds Unicode character with code ``int`` to the :ref:`String<class_String>`.
  204. ----
  205. - :ref:`float<class_float>` **operator +** **(** :ref:`float<class_float>` right **)**
  206. Adds an ``int`` and a :ref:`float<class_float>`. The result is a :ref:`float<class_float>`.
  207. ----
  208. - :ref:`int<class_int>` **operator +** **(** :ref:`int<class_int>` right **)**
  209. Adds two integers.
  210. ----
  211. .. _class_int_operator_dif_float:
  212. - :ref:`float<class_float>` **operator -** **(** :ref:`float<class_float>` right **)**
  213. Subtracts a :ref:`float<class_float>` from an ``int``. The result is a :ref:`float<class_float>`.
  214. ----
  215. - :ref:`int<class_int>` **operator -** **(** :ref:`int<class_int>` right **)**
  216. Subtracts two integers.
  217. ----
  218. .. _class_int_operator_div_float:
  219. - :ref:`float<class_float>` **operator /** **(** :ref:`float<class_float>` right **)**
  220. Divides an ``int`` by a :ref:`float<class_float>`. The result is a :ref:`float<class_float>`.
  221. ::
  222. print(10 / 3.0) # 3.333...
  223. ----
  224. - :ref:`int<class_int>` **operator /** **(** :ref:`int<class_int>` right **)**
  225. Divides two integers. The decimal part of the result is discarded (truncated).
  226. ::
  227. print(10 / 2) # 5
  228. print(10 / 3) # 3
  229. ----
  230. .. _class_int_operator_lt_bool:
  231. - :ref:`bool<class_bool>` **operator <** **(** :ref:`float<class_float>` right **)**
  232. Returns ``true`` if this ``int`` is less than the given :ref:`float<class_float>`.
  233. ----
  234. - :ref:`bool<class_bool>` **operator <** **(** :ref:`int<class_int>` right **)**
  235. Returns ``true`` the left integer is less than the right one.
  236. ----
  237. .. _class_int_operator_bwsl_int:
  238. - :ref:`int<class_int>` **operator <<** **(** :ref:`int<class_int>` right **)**
  239. Performs bitwise shift left operation on the integer. Effectively the same as multiplying by a power of 2.
  240. ::
  241. print(10 << 1) # 20
  242. print(10 << 4) # 160
  243. ----
  244. .. _class_int_operator_lte_bool:
  245. - :ref:`bool<class_bool>` **operator <=** **(** :ref:`float<class_float>` right **)**
  246. Returns ``true`` if this ``int`` is less than or equal to the given :ref:`float<class_float>`.
  247. ----
  248. - :ref:`bool<class_bool>` **operator <=** **(** :ref:`int<class_int>` right **)**
  249. Returns ``true`` the left integer is less than or equal to the right one.
  250. ----
  251. .. _class_int_operator_eq_bool:
  252. - :ref:`bool<class_bool>` **operator ==** **(** **)**
  253. ----
  254. - :ref:`bool<class_bool>` **operator ==** **(** :ref:`float<class_float>` right **)**
  255. Returns ``true`` if the integer is equal to the given :ref:`float<class_float>`.
  256. ----
  257. - :ref:`bool<class_bool>` **operator ==** **(** :ref:`int<class_int>` right **)**
  258. Returns ``true`` if both integers are equal.
  259. ----
  260. .. _class_int_operator_gt_bool:
  261. - :ref:`bool<class_bool>` **operator >** **(** :ref:`float<class_float>` right **)**
  262. Returns ``true`` if this ``int`` is greater than the given :ref:`float<class_float>`.
  263. ----
  264. - :ref:`bool<class_bool>` **operator >** **(** :ref:`int<class_int>` right **)**
  265. Returns ``true`` the left integer is greater than the right one.
  266. ----
  267. .. _class_int_operator_gte_bool:
  268. - :ref:`bool<class_bool>` **operator >=** **(** :ref:`float<class_float>` right **)**
  269. Returns ``true`` if this ``int`` is greater than or equal to the given :ref:`float<class_float>`.
  270. ----
  271. - :ref:`bool<class_bool>` **operator >=** **(** :ref:`int<class_int>` right **)**
  272. Returns ``true`` the left integer is greater than or equal to the right one.
  273. ----
  274. .. _class_int_operator_bwsr_int:
  275. - :ref:`int<class_int>` **operator >>** **(** :ref:`int<class_int>` right **)**
  276. Performs bitwise shift right operation on the integer. Effectively the same as dividing by a power of 2.
  277. ::
  278. print(10 >> 1) # 5
  279. print(10 >> 2) # 2
  280. ----
  281. .. _class_int_operator_bwxor_int:
  282. - :ref:`int<class_int>` **operator ^** **(** :ref:`int<class_int>` right **)**
  283. Returns the result of bitwise ``XOR`` operation for two integers.
  284. ::
  285. print(5 ^ 1) # 4
  286. print(4 ^ 7) # 3
  287. ----
  288. .. _class_int_operator_unplus_int:
  289. - :ref:`int<class_int>` **operator unary+** **(** **)**
  290. Returns the same value as if the ``+`` was not there. Unary ``+`` does nothing, but sometimes it can make your code more readable.
  291. ----
  292. .. _class_int_operator_unminus_int:
  293. - :ref:`int<class_int>` **operator unary-** **(** **)**
  294. Returns the negated value of the ``int``. If positive, turns the number negative. If negative, turns the number positive. If zero, does nothing.
  295. ----
  296. .. _class_int_operator_bwor_int:
  297. - :ref:`int<class_int>` **operator |** **(** :ref:`int<class_int>` right **)**
  298. Returns the result of bitwise ``OR`` operation for two integers.
  299. ::
  300. print(2 | 4) # 6
  301. print(1 | 3) # 3
  302. It's useful to store binary flags in a variable.
  303. ::
  304. var flags = 0
  305. # Turn first and third bit on.
  306. flags |= 1
  307. flags |= 4
  308. ----
  309. .. _class_int_operator_bwnot_int:
  310. - :ref:`int<class_int>` **operator ~** **(** **)**
  311. Returns the result of bitwise ``NOT`` operation for the integer. It's effectively equal to ``-int + 1``.
  312. ::
  313. print(~4) # -3
  314. print(~7) # -6
  315. .. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
  316. .. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
  317. .. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
  318. .. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
  319. .. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
  320. .. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`