class_vector2.rst 26 KB

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  1. :github_url: hide
  2. .. Generated automatically by doc/tools/makerst.py in Godot's source tree.
  3. .. DO NOT EDIT THIS FILE, but the Vector2.xml source instead.
  4. .. The source is found in doc/classes or modules/<name>/doc_classes.
  5. .. _class_Vector2:
  6. Vector2
  7. =======
  8. Vector used for 2D math.
  9. Description
  10. -----------
  11. 2-element structure that can be used to represent positions in 2D space or any other pair of numeric values.
  12. Tutorials
  13. ---------
  14. - :doc:`../tutorials/math/index`
  15. Properties
  16. ----------
  17. +---------------------------+------------------------------------+---------+
  18. | :ref:`float<class_float>` | :ref:`x<class_Vector2_property_x>` | ``0.0`` |
  19. +---------------------------+------------------------------------+---------+
  20. | :ref:`float<class_float>` | :ref:`y<class_Vector2_property_y>` | ``0.0`` |
  21. +---------------------------+------------------------------------+---------+
  22. Methods
  23. -------
  24. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  25. | :ref:`Vector2<class_Vector2>` | :ref:`Vector2<class_Vector2_method_Vector2>` **(** :ref:`float<class_float>` x, :ref:`float<class_float>` y **)** |
  26. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  27. | :ref:`Vector2<class_Vector2>` | :ref:`abs<class_Vector2_method_abs>` **(** **)** |
  28. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  29. | :ref:`float<class_float>` | :ref:`angle<class_Vector2_method_angle>` **(** **)** |
  30. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  31. | :ref:`float<class_float>` | :ref:`angle_to<class_Vector2_method_angle_to>` **(** :ref:`Vector2<class_Vector2>` to **)** |
  32. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  33. | :ref:`float<class_float>` | :ref:`angle_to_point<class_Vector2_method_angle_to_point>` **(** :ref:`Vector2<class_Vector2>` to **)** |
  34. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  35. | :ref:`float<class_float>` | :ref:`aspect<class_Vector2_method_aspect>` **(** **)** |
  36. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  37. | :ref:`Vector2<class_Vector2>` | :ref:`bounce<class_Vector2_method_bounce>` **(** :ref:`Vector2<class_Vector2>` n **)** |
  38. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  39. | :ref:`Vector2<class_Vector2>` | :ref:`ceil<class_Vector2_method_ceil>` **(** **)** |
  40. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  41. | :ref:`Vector2<class_Vector2>` | :ref:`clamped<class_Vector2_method_clamped>` **(** :ref:`float<class_float>` length **)** |
  42. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  43. | :ref:`float<class_float>` | :ref:`cross<class_Vector2_method_cross>` **(** :ref:`Vector2<class_Vector2>` with **)** |
  44. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  45. | :ref:`Vector2<class_Vector2>` | :ref:`cubic_interpolate<class_Vector2_method_cubic_interpolate>` **(** :ref:`Vector2<class_Vector2>` b, :ref:`Vector2<class_Vector2>` pre_a, :ref:`Vector2<class_Vector2>` post_b, :ref:`float<class_float>` t **)** |
  46. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  47. | :ref:`Vector2<class_Vector2>` | :ref:`direction_to<class_Vector2_method_direction_to>` **(** :ref:`Vector2<class_Vector2>` b **)** |
  48. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  49. | :ref:`float<class_float>` | :ref:`distance_squared_to<class_Vector2_method_distance_squared_to>` **(** :ref:`Vector2<class_Vector2>` to **)** |
  50. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  51. | :ref:`float<class_float>` | :ref:`distance_to<class_Vector2_method_distance_to>` **(** :ref:`Vector2<class_Vector2>` to **)** |
  52. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  53. | :ref:`float<class_float>` | :ref:`dot<class_Vector2_method_dot>` **(** :ref:`Vector2<class_Vector2>` with **)** |
  54. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  55. | :ref:`Vector2<class_Vector2>` | :ref:`floor<class_Vector2_method_floor>` **(** **)** |
  56. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  57. | :ref:`bool<class_bool>` | :ref:`is_equal_approx<class_Vector2_method_is_equal_approx>` **(** :ref:`Vector2<class_Vector2>` v **)** |
  58. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  59. | :ref:`bool<class_bool>` | :ref:`is_normalized<class_Vector2_method_is_normalized>` **(** **)** |
  60. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  61. | :ref:`float<class_float>` | :ref:`length<class_Vector2_method_length>` **(** **)** |
  62. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  63. | :ref:`float<class_float>` | :ref:`length_squared<class_Vector2_method_length_squared>` **(** **)** |
  64. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  65. | :ref:`Vector2<class_Vector2>` | :ref:`linear_interpolate<class_Vector2_method_linear_interpolate>` **(** :ref:`Vector2<class_Vector2>` b, :ref:`float<class_float>` t **)** |
  66. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  67. | :ref:`Vector2<class_Vector2>` | :ref:`move_toward<class_Vector2_method_move_toward>` **(** :ref:`Vector2<class_Vector2>` to, :ref:`float<class_float>` delta **)** |
  68. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  69. | :ref:`Vector2<class_Vector2>` | :ref:`normalized<class_Vector2_method_normalized>` **(** **)** |
  70. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  71. | :ref:`Vector2<class_Vector2>` | :ref:`posmod<class_Vector2_method_posmod>` **(** :ref:`float<class_float>` mod **)** |
  72. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  73. | :ref:`Vector2<class_Vector2>` | :ref:`posmodv<class_Vector2_method_posmodv>` **(** :ref:`Vector2<class_Vector2>` modv **)** |
  74. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  75. | :ref:`Vector2<class_Vector2>` | :ref:`project<class_Vector2_method_project>` **(** :ref:`Vector2<class_Vector2>` b **)** |
  76. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  77. | :ref:`Vector2<class_Vector2>` | :ref:`reflect<class_Vector2_method_reflect>` **(** :ref:`Vector2<class_Vector2>` n **)** |
  78. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  79. | :ref:`Vector2<class_Vector2>` | :ref:`rotated<class_Vector2_method_rotated>` **(** :ref:`float<class_float>` phi **)** |
  80. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  81. | :ref:`Vector2<class_Vector2>` | :ref:`round<class_Vector2_method_round>` **(** **)** |
  82. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  83. | :ref:`Vector2<class_Vector2>` | :ref:`sign<class_Vector2_method_sign>` **(** **)** |
  84. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  85. | :ref:`Vector2<class_Vector2>` | :ref:`slerp<class_Vector2_method_slerp>` **(** :ref:`Vector2<class_Vector2>` b, :ref:`float<class_float>` t **)** |
  86. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  87. | :ref:`Vector2<class_Vector2>` | :ref:`slide<class_Vector2_method_slide>` **(** :ref:`Vector2<class_Vector2>` n **)** |
  88. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  89. | :ref:`Vector2<class_Vector2>` | :ref:`snapped<class_Vector2_method_snapped>` **(** :ref:`Vector2<class_Vector2>` by **)** |
  90. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  91. | :ref:`Vector2<class_Vector2>` | :ref:`tangent<class_Vector2_method_tangent>` **(** **)** |
  92. +-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  93. Constants
  94. ---------
  95. .. _class_Vector2_constant_AXIS_X:
  96. .. _class_Vector2_constant_AXIS_Y:
  97. .. _class_Vector2_constant_ZERO:
  98. .. _class_Vector2_constant_ONE:
  99. .. _class_Vector2_constant_INF:
  100. .. _class_Vector2_constant_LEFT:
  101. .. _class_Vector2_constant_RIGHT:
  102. .. _class_Vector2_constant_UP:
  103. .. _class_Vector2_constant_DOWN:
  104. - **AXIS_X** = **0** --- Enumerated value for the X axis.
  105. - **AXIS_Y** = **1** --- Enumerated value for the Y axis.
  106. - **ZERO** = **Vector2( 0, 0 )** --- Zero vector.
  107. - **ONE** = **Vector2( 1, 1 )** --- One vector.
  108. - **INF** = **Vector2( inf, inf )** --- Infinity vector.
  109. - **LEFT** = **Vector2( -1, 0 )** --- Left unit vector.
  110. - **RIGHT** = **Vector2( 1, 0 )** --- Right unit vector.
  111. - **UP** = **Vector2( 0, -1 )** --- Up unit vector.
  112. - **DOWN** = **Vector2( 0, 1 )** --- Down unit vector.
  113. Property Descriptions
  114. ---------------------
  115. .. _class_Vector2_property_x:
  116. - :ref:`float<class_float>` **x**
  117. +-----------+---------+
  118. | *Default* | ``0.0`` |
  119. +-----------+---------+
  120. The vector's X component. Also accessible by using the index position ``[0]``.
  121. ----
  122. .. _class_Vector2_property_y:
  123. - :ref:`float<class_float>` **y**
  124. +-----------+---------+
  125. | *Default* | ``0.0`` |
  126. +-----------+---------+
  127. The vector's Y component. Also accessible by using the index position ``[1]``.
  128. Method Descriptions
  129. -------------------
  130. .. _class_Vector2_method_Vector2:
  131. - :ref:`Vector2<class_Vector2>` **Vector2** **(** :ref:`float<class_float>` x, :ref:`float<class_float>` y **)**
  132. Constructs a new Vector2 from the given ``x`` and ``y``.
  133. ----
  134. .. _class_Vector2_method_abs:
  135. - :ref:`Vector2<class_Vector2>` **abs** **(** **)**
  136. Returns a new vector with all components in absolute values (i.e. positive).
  137. ----
  138. .. _class_Vector2_method_angle:
  139. - :ref:`float<class_float>` **angle** **(** **)**
  140. Returns the vector's angle in radians with respect to the X axis, or ``(1, 0)`` vector.
  141. Equivalent to the result of :ref:`@GDScript.atan2<class_@GDScript_method_atan2>` when called with the vector's :ref:`x<class_Vector2_property_x>` and :ref:`y<class_Vector2_property_y>` as parameters: ``atan2(x, y)``.
  142. ----
  143. .. _class_Vector2_method_angle_to:
  144. - :ref:`float<class_float>` **angle_to** **(** :ref:`Vector2<class_Vector2>` to **)**
  145. Returns the angle in radians between the two vectors.
  146. ----
  147. .. _class_Vector2_method_angle_to_point:
  148. - :ref:`float<class_float>` **angle_to_point** **(** :ref:`Vector2<class_Vector2>` to **)**
  149. Returns the angle in radians between the line connecting the two points and the X coordinate.
  150. ----
  151. .. _class_Vector2_method_aspect:
  152. - :ref:`float<class_float>` **aspect** **(** **)**
  153. Returns the ratio of :ref:`x<class_Vector2_property_x>` to :ref:`y<class_Vector2_property_y>`.
  154. ----
  155. .. _class_Vector2_method_bounce:
  156. - :ref:`Vector2<class_Vector2>` **bounce** **(** :ref:`Vector2<class_Vector2>` n **)**
  157. Returns the vector "bounced off" from a plane defined by the given normal.
  158. ----
  159. .. _class_Vector2_method_ceil:
  160. - :ref:`Vector2<class_Vector2>` **ceil** **(** **)**
  161. Returns the vector with all components rounded up.
  162. ----
  163. .. _class_Vector2_method_clamped:
  164. - :ref:`Vector2<class_Vector2>` **clamped** **(** :ref:`float<class_float>` length **)**
  165. Returns the vector with a maximum length.
  166. ----
  167. .. _class_Vector2_method_cross:
  168. - :ref:`float<class_float>` **cross** **(** :ref:`Vector2<class_Vector2>` with **)**
  169. Returns the 2-dimensional analog of the cross product with the given vector.
  170. ----
  171. .. _class_Vector2_method_cubic_interpolate:
  172. - :ref:`Vector2<class_Vector2>` **cubic_interpolate** **(** :ref:`Vector2<class_Vector2>` b, :ref:`Vector2<class_Vector2>` pre_a, :ref:`Vector2<class_Vector2>` post_b, :ref:`float<class_float>` t **)**
  173. Cubically interpolates between this vector and ``b`` using ``pre_a`` and ``post_b`` as handles, and returns the result at position ``t``. ``t`` is in the range of ``0.0 - 1.0``, representing the amount of interpolation.
  174. ----
  175. .. _class_Vector2_method_direction_to:
  176. - :ref:`Vector2<class_Vector2>` **direction_to** **(** :ref:`Vector2<class_Vector2>` b **)**
  177. Returns the normalized vector pointing from this vector to ``b``.
  178. ----
  179. .. _class_Vector2_method_distance_squared_to:
  180. - :ref:`float<class_float>` **distance_squared_to** **(** :ref:`Vector2<class_Vector2>` to **)**
  181. Returns the squared distance to vector ``b``. Prefer this function over :ref:`distance_to<class_Vector2_method_distance_to>` if you need to sort vectors or need the squared distance for some formula.
  182. ----
  183. .. _class_Vector2_method_distance_to:
  184. - :ref:`float<class_float>` **distance_to** **(** :ref:`Vector2<class_Vector2>` to **)**
  185. Returns the distance to vector ``b``.
  186. ----
  187. .. _class_Vector2_method_dot:
  188. - :ref:`float<class_float>` **dot** **(** :ref:`Vector2<class_Vector2>` with **)**
  189. Returns the dot product with vector ``b``.
  190. ----
  191. .. _class_Vector2_method_floor:
  192. - :ref:`Vector2<class_Vector2>` **floor** **(** **)**
  193. Returns the vector with all components rounded down.
  194. ----
  195. .. _class_Vector2_method_is_equal_approx:
  196. - :ref:`bool<class_bool>` **is_equal_approx** **(** :ref:`Vector2<class_Vector2>` v **)**
  197. Returns ``true`` if this vector and ``v`` are approximately equal, by running :ref:`@GDScript.is_equal_approx<class_@GDScript_method_is_equal_approx>` on each component.
  198. ----
  199. .. _class_Vector2_method_is_normalized:
  200. - :ref:`bool<class_bool>` **is_normalized** **(** **)**
  201. Returns ``true`` if the vector is normalized.
  202. ----
  203. .. _class_Vector2_method_length:
  204. - :ref:`float<class_float>` **length** **(** **)**
  205. Returns the vector's length.
  206. ----
  207. .. _class_Vector2_method_length_squared:
  208. - :ref:`float<class_float>` **length_squared** **(** **)**
  209. Returns the vector's length squared. Prefer this method over :ref:`length<class_Vector2_method_length>` if you need to sort vectors or need the squared length for some formula.
  210. ----
  211. .. _class_Vector2_method_linear_interpolate:
  212. - :ref:`Vector2<class_Vector2>` **linear_interpolate** **(** :ref:`Vector2<class_Vector2>` b, :ref:`float<class_float>` t **)**
  213. Returns the result of the linear interpolation between this vector and ``b`` by amount ``t``. ``t`` is in the range of ``0.0 - 1.0``, representing the amount of interpolation.
  214. ----
  215. .. _class_Vector2_method_move_toward:
  216. - :ref:`Vector2<class_Vector2>` **move_toward** **(** :ref:`Vector2<class_Vector2>` to, :ref:`float<class_float>` delta **)**
  217. Moves the vector toward ``to`` by the fixed ``delta`` amount.
  218. ----
  219. .. _class_Vector2_method_normalized:
  220. - :ref:`Vector2<class_Vector2>` **normalized** **(** **)**
  221. Returns the vector scaled to unit length. Equivalent to ``v / v.length()``.
  222. ----
  223. .. _class_Vector2_method_posmod:
  224. - :ref:`Vector2<class_Vector2>` **posmod** **(** :ref:`float<class_float>` mod **)**
  225. Returns a vector composed of the ``fposmod`` of this vector's components and ``mod``.
  226. ----
  227. .. _class_Vector2_method_posmodv:
  228. - :ref:`Vector2<class_Vector2>` **posmodv** **(** :ref:`Vector2<class_Vector2>` modv **)**
  229. Returns a vector composed of the ``fposmod`` of this vector's components and ``modv``'s components.
  230. ----
  231. .. _class_Vector2_method_project:
  232. - :ref:`Vector2<class_Vector2>` **project** **(** :ref:`Vector2<class_Vector2>` b **)**
  233. Returns the vector projected onto the vector ``b``.
  234. ----
  235. .. _class_Vector2_method_reflect:
  236. - :ref:`Vector2<class_Vector2>` **reflect** **(** :ref:`Vector2<class_Vector2>` n **)**
  237. Returns the vector reflected from a plane defined by the given normal.
  238. ----
  239. .. _class_Vector2_method_rotated:
  240. - :ref:`Vector2<class_Vector2>` **rotated** **(** :ref:`float<class_float>` phi **)**
  241. Returns the vector rotated by ``phi`` radians. See also :ref:`@GDScript.deg2rad<class_@GDScript_method_deg2rad>`.
  242. ----
  243. .. _class_Vector2_method_round:
  244. - :ref:`Vector2<class_Vector2>` **round** **(** **)**
  245. Returns the vector with all components rounded to the nearest integer, with halfway cases rounded away from zero.
  246. ----
  247. .. _class_Vector2_method_sign:
  248. - :ref:`Vector2<class_Vector2>` **sign** **(** **)**
  249. Returns the vector with each component set to one or negative one, depending on the signs of the components.
  250. ----
  251. .. _class_Vector2_method_slerp:
  252. - :ref:`Vector2<class_Vector2>` **slerp** **(** :ref:`Vector2<class_Vector2>` b, :ref:`float<class_float>` t **)**
  253. Returns the result of spherical linear interpolation between this vector and ``b``, by amount ``t``. ``t`` is in the range of ``0.0 - 1.0``, representing the amount of interpolation.
  254. **Note:** Both vectors must be normalized.
  255. ----
  256. .. _class_Vector2_method_slide:
  257. - :ref:`Vector2<class_Vector2>` **slide** **(** :ref:`Vector2<class_Vector2>` n **)**
  258. Returns the component of the vector along a plane defined by the given normal.
  259. ----
  260. .. _class_Vector2_method_snapped:
  261. - :ref:`Vector2<class_Vector2>` **snapped** **(** :ref:`Vector2<class_Vector2>` by **)**
  262. Returns the vector snapped to a grid with the given size.
  263. ----
  264. .. _class_Vector2_method_tangent:
  265. - :ref:`Vector2<class_Vector2>` **tangent** **(** **)**
  266. Returns a perpendicular vector.