The [Rect2] built-in [Variant] type represents an axis-aligned rectangle in a 2D space. It is defined by its [member position] and [member size], which are [Vector2]. It is frequently used for fast overlap tests (see [method intersects]). Although [Rect2] itself is axis-aligned, it can be combined with [Transform2D] to represent a rotated or skewed rectangle.
For integer coordinates, use [Rect2i]. The 3D equivalent to [Rect2] is [AABB].
[b]Note:[/b] Negative values for [member size] are not supported. With negative size, most [Rect2] methods do not work correctly. Use [method abs] to get an equivalent [Rect2] with a non-negative size.
[b]Note:[/b] In a boolean context, a [Rect2] evaluates to [code]false[/code] if both [member position] and [member size] are zero (equal to [constant Vector2.ZERO]). Otherwise, it always evaluates to [code]true[/code].
Returns a [Rect2] equivalent to this rectangle, with its width and height modified to be non-negative values, and with its [member position] being the top-left corner of the rectangle.
[codeblocks]
[gdscript]
var rect = Rect2(25, 25, -100, -50)
var absolute = rect.abs() # absolute is Rect2(-75, -25, 100, 50)
[/gdscript]
[csharp]
var rect = new Rect2(25, 25, -100, -50);
var absolute = rect.Abs(); // absolute is Rect2(-75, -25, 100, 50)
[/csharp]
[/codeblocks]
[b]Note:[/b] It's recommended to use this method when [member size] is negative, as most other methods in Godot assume that the [member position] is the top-left corner, and the [member end] is the bottom-right corner.
Returns the vertex's position of this rect that's the farthest in the given direction. This point is commonly known as the support point in collision detection algorithms.
Returns a copy of this rectangle extended on all sides by the given [param amount]. A negative [param amount] shrinks the rectangle instead. See also [method grow_individual] and [method grow_side].
[codeblocks]
[gdscript]
var a = Rect2(4, 4, 8, 8).grow(4) # a is Rect2(0, 0, 16, 16)
var b = Rect2(0, 0, 8, 4).grow(2) # b is Rect2(-2, -2, 12, 8)
[/gdscript]
[csharp]
var a = new Rect2(4, 4, 8, 8).Grow(4); // a is Rect2(0, 0, 16, 16)
var b = new Rect2(0, 0, 8, 4).Grow(2); // b is Rect2(-2, -2, 12, 8)
Returns a copy of this rectangle with its [param left], [param top], [param right], and [param bottom] sides extended by the given amounts. Negative values shrink the sides, instead. See also [method grow] and [method grow_side].
Returns a copy of this rectangle with its [param side] extended by the given [param amount] (see [enum Side] constants). A negative [param amount] shrinks the rectangle, instead. See also [method grow] and [method grow_individual].
Returns [code]true[/code] if the rectangle contains the given [param point]. By convention, points on the right and bottom edges are [b]not[/b] included.
[b]Note:[/b] This method is not reliable for [Rect2] with a [i]negative[/i] [member size]. Use [method abs] first to get a valid rectangle.
Returns [code]true[/code] if this rectangle overlaps with the [param b] rectangle. The edges of both rectangles are excluded, unless [param include_borders] is [code]true[/code].
Returns [code]true[/code] if this rectangle and [param rect] are approximately equal, by calling [method Vector2.is_equal_approx] on the [member position] and the [member size].
The ending point. This is usually the bottom-right corner of the rectangle, and is equivalent to [code]position + size[/code]. Setting this point affects the [member size].
The rectangle's width and height, starting from [member position]. Setting this value also affects the [member end] point.
[b]Note:[/b] It's recommended setting the width and height to non-negative values, as most methods in Godot assume that the [member position] is the top-left corner, and the [member end] is the bottom-right corner. To get an equivalent rectangle with non-negative size, use [method abs].
Inversely transforms (multiplies) the [Rect2] by the given [Transform2D] transformation matrix, under the assumption that the transformation basis is orthonormal (i.e. rotation/reflection is fine, scaling/skew is not).
[code]rect * transform[/code] is equivalent to [code]transform.inverse() * rect[/code]. See [method Transform2D.inverse].
For transforming by inverse of an affine transformation (e.g. with scaling) [code]transform.affine_inverse() * rect[/code] can be used instead. See [method Transform2D.affine_inverse].
