virtualx-engine/doc/classes/Curve.xml
Rémi Verschelde 81064cc239
Doctool: Remove version attribute from XML header
We don't use that info for anything, and it generates unnecessary diffs
every time we bump the minor version (and CI failures if we forget to
sync some files from opt-in modules (mono, text_server_fb).
2023-07-06 10:08:21 +02:00

179 lines
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XML

<?xml version="1.0" encoding="UTF-8" ?>
<class name="Curve" inherits="Resource" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
<brief_description>
A mathematic curve.
</brief_description>
<description>
A curve that can be saved and re-used for other objects. By default, it ranges between [code]0[/code] and [code]1[/code] on the Y axis and positions points relative to the [code]0.5[/code] Y position.
See also [Gradient] which is designed for color interpolation. See also [Curve2D] and [Curve3D].
</description>
<tutorials>
</tutorials>
<methods>
<method name="add_point">
<return type="int" />
<param index="0" name="position" type="Vector2" />
<param index="1" name="left_tangent" type="float" default="0" />
<param index="2" name="right_tangent" type="float" default="0" />
<param index="3" name="left_mode" type="int" enum="Curve.TangentMode" default="0" />
<param index="4" name="right_mode" type="int" enum="Curve.TangentMode" default="0" />
<description>
Adds a point to the curve. For each side, if the [code]*_mode[/code] is [constant TANGENT_LINEAR], the [code]*_tangent[/code] angle (in degrees) uses the slope of the curve halfway to the adjacent point. Allows custom assignments to the [code]*_tangent[/code] angle if [code]*_mode[/code] is set to [constant TANGENT_FREE].
</description>
</method>
<method name="bake">
<return type="void" />
<description>
Recomputes the baked cache of points for the curve.
</description>
</method>
<method name="clean_dupes">
<return type="void" />
<description>
Removes duplicate points, i.e. points that are less than 0.00001 units (engine epsilon value) away from their neighbor on the curve.
</description>
</method>
<method name="clear_points">
<return type="void" />
<description>
Removes all points from the curve.
</description>
</method>
<method name="get_point_left_mode" qualifiers="const">
<return type="int" enum="Curve.TangentMode" />
<param index="0" name="index" type="int" />
<description>
Returns the left [enum TangentMode] for the point at [param index].
</description>
</method>
<method name="get_point_left_tangent" qualifiers="const">
<return type="float" />
<param index="0" name="index" type="int" />
<description>
Returns the left tangent angle (in degrees) for the point at [param index].
</description>
</method>
<method name="get_point_position" qualifiers="const">
<return type="Vector2" />
<param index="0" name="index" type="int" />
<description>
Returns the curve coordinates for the point at [param index].
</description>
</method>
<method name="get_point_right_mode" qualifiers="const">
<return type="int" enum="Curve.TangentMode" />
<param index="0" name="index" type="int" />
<description>
Returns the right [enum TangentMode] for the point at [param index].
</description>
</method>
<method name="get_point_right_tangent" qualifiers="const">
<return type="float" />
<param index="0" name="index" type="int" />
<description>
Returns the right tangent angle (in degrees) for the point at [param index].
</description>
</method>
<method name="remove_point">
<return type="void" />
<param index="0" name="index" type="int" />
<description>
Removes the point at [param index] from the curve.
</description>
</method>
<method name="sample" qualifiers="const">
<return type="float" />
<param index="0" name="offset" type="float" />
<description>
Returns the Y value for the point that would exist at the X position [param offset] along the curve.
</description>
</method>
<method name="sample_baked" qualifiers="const">
<return type="float" />
<param index="0" name="offset" type="float" />
<description>
Returns the Y value for the point that would exist at the X position [param offset] along the curve using the baked cache. Bakes the curve's points if not already baked.
</description>
</method>
<method name="set_point_left_mode">
<return type="void" />
<param index="0" name="index" type="int" />
<param index="1" name="mode" type="int" enum="Curve.TangentMode" />
<description>
Sets the left [enum TangentMode] for the point at [param index] to [param mode].
</description>
</method>
<method name="set_point_left_tangent">
<return type="void" />
<param index="0" name="index" type="int" />
<param index="1" name="tangent" type="float" />
<description>
Sets the left tangent angle for the point at [param index] to [param tangent].
</description>
</method>
<method name="set_point_offset">
<return type="int" />
<param index="0" name="index" type="int" />
<param index="1" name="offset" type="float" />
<description>
Sets the offset from [code]0.5[/code].
</description>
</method>
<method name="set_point_right_mode">
<return type="void" />
<param index="0" name="index" type="int" />
<param index="1" name="mode" type="int" enum="Curve.TangentMode" />
<description>
Sets the right [enum TangentMode] for the point at [param index] to [param mode].
</description>
</method>
<method name="set_point_right_tangent">
<return type="void" />
<param index="0" name="index" type="int" />
<param index="1" name="tangent" type="float" />
<description>
Sets the right tangent angle for the point at [param index] to [param tangent].
</description>
</method>
<method name="set_point_value">
<return type="void" />
<param index="0" name="index" type="int" />
<param index="1" name="y" type="float" />
<description>
Assigns the vertical position [param y] to the point at [param index].
</description>
</method>
</methods>
<members>
<member name="bake_resolution" type="int" setter="set_bake_resolution" getter="get_bake_resolution" default="100">
The number of points to include in the baked (i.e. cached) curve data.
</member>
<member name="max_value" type="float" setter="set_max_value" getter="get_max_value" default="1.0">
The maximum value the curve can reach.
</member>
<member name="min_value" type="float" setter="set_min_value" getter="get_min_value" default="0.0">
The minimum value the curve can reach.
</member>
<member name="point_count" type="int" setter="set_point_count" getter="get_point_count" default="0">
The number of points describing the curve.
</member>
</members>
<signals>
<signal name="range_changed">
<description>
Emitted when [member max_value] or [member min_value] is changed.
</description>
</signal>
</signals>
<constants>
<constant name="TANGENT_FREE" value="0" enum="TangentMode">
The tangent on this side of the point is user-defined.
</constant>
<constant name="TANGENT_LINEAR" value="1" enum="TangentMode">
The curve calculates the tangent on this side of the point as the slope halfway towards the adjacent point.
</constant>
<constant name="TANGENT_MODE_COUNT" value="2" enum="TangentMode">
The total number of available tangent modes.
</constant>
</constants>
</class>