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virtualx-engine/doc/classes/CPUParticles2D.xml
Rémi Verschelde 542489a866 DocData: Re-expose parametric setters and getters 
Setters and getters have been hidden from the documentation when the matching
properties have been exposed, but some of them are parametric and require the
name or index of a given parameter to be used. So they need to be properly
documented with the type and name of the arguments they take.

For example, CPUParticles' `set_param(Parameter param, float value)`.
2019-07-04 14:08:16 +02:00

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<?xml version="1.0" encoding="UTF-8" ?>
<class name="CPUParticles2D" inherits="Node2D" category="Core" version="3.2">
<brief_description>
CPU-based 2D particle emitter.
</brief_description>
<description>
CPU-based 2D particle node used to create a variety of particle systems and effects.
See also [Particles2D], which provides the same functionality with hardware acceleration, but may not run on older devices.
</description>
<tutorials>
<link>https://docs.godotengine.org/en/latest/tutorials/2d/particle_systems_2d.html</link>
</tutorials>
<methods>
<method name="convert_from_particles">
<return type="void">
</return>
<argument index="0" name="particles" type="Node">
</argument>
<description>
Sets this node's properties to match a given [Particles2D] node with an assigned [ParticlesMaterial].
</description>
</method>
<method name="get_param" qualifiers="const">
<return type="float">
</return>
<argument index="0" name="param" type="int" enum="CPUParticles2D.Parameter">
</argument>
<description>
</description>
</method>
<method name="get_param_curve" qualifiers="const">
<return type="Curve">
</return>
<argument index="0" name="param" type="int" enum="CPUParticles2D.Parameter">
</argument>
<description>
</description>
</method>
<method name="get_param_randomness" qualifiers="const">
<return type="float">
</return>
<argument index="0" name="param" type="int" enum="CPUParticles2D.Parameter">
</argument>
<description>
</description>
</method>
<method name="get_particle_flag" qualifiers="const">
<return type="bool">
</return>
<argument index="0" name="flag" type="int" enum="CPUParticles2D.Flags">
</argument>
<description>
</description>
</method>
<method name="restart">
<return type="void">
</return>
<description>
Restarts the particle emitter.
</description>
</method>
<method name="set_param">
<return type="void">
</return>
<argument index="0" name="param" type="int" enum="CPUParticles2D.Parameter">
</argument>
<argument index="1" name="value" type="float">
</argument>
<description>
</description>
</method>
<method name="set_param_curve">
<return type="void">
</return>
<argument index="0" name="param" type="int" enum="CPUParticles2D.Parameter">
</argument>
<argument index="1" name="curve" type="Curve">
</argument>
<description>
</description>
</method>
<method name="set_param_randomness">
<return type="void">
</return>
<argument index="0" name="param" type="int" enum="CPUParticles2D.Parameter">
</argument>
<argument index="1" name="randomness" type="float">
</argument>
<description>
</description>
</method>
<method name="set_particle_flag">
<return type="void">
</return>
<argument index="0" name="flag" type="int" enum="CPUParticles2D.Flags">
</argument>
<argument index="1" name="enable" type="bool">
</argument>
<description>
</description>
</method>
</methods>
<members>
<member name="amount" type="int" setter="set_amount" getter="get_amount" default="8">
Number of particles emitted in one emission cycle.
</member>
<member name="angle" type="float" setter="set_param" getter="get_param" default="0.0">
Initial rotation applied to each particle, in degrees.
</member>
<member name="angle_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's rotation will be animated along this [Curve].
</member>
<member name="angle_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Rotation randomness ratio.
</member>
<member name="angular_velocity" type="float" setter="set_param" getter="get_param" default="0.0">
Initial angular velocity applied to each particle. Sets the speed of rotation of the particle.
</member>
<member name="angular_velocity_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's angular velocity will vary along this [Curve].
</member>
<member name="angular_velocity_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Angular velocity randomness ratio.
</member>
<member name="anim_offset" type="float" setter="set_param" getter="get_param" default="0.0">
Particle animation offset.
</member>
<member name="anim_offset_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's animation offset will vary along this [Curve].
</member>
<member name="anim_offset_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Animation offset randomness ratio.
</member>
<member name="anim_speed" type="float" setter="set_param" getter="get_param" default="0.0">
Particle animation speed.
</member>
<member name="anim_speed_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's animation speed will vary along this [Curve].
</member>
<member name="anim_speed_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Animation speed randomness ratio.
</member>
<member name="color" type="Color" setter="set_color" getter="get_color" default="Color( 1, 1, 1, 1 )">
Each particle's initial color. If [member texture] is defined, it will be multiplied by this color.
</member>
<member name="color_ramp" type="Gradient" setter="set_color_ramp" getter="get_color_ramp" default="null">
Each particle's color will vary along this [Gradient].
</member>
<member name="damping" type="float" setter="set_param" getter="get_param" default="0.0">
The rate at which particles lose velocity.
</member>
<member name="damping_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Damping will vary along this [Curve].
</member>
<member name="damping_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Damping randomness ratio.
</member>
<member name="direction" type="Vector2" setter="set_direction" getter="get_direction" default="Vector2( 1, 0 )">
Unit vector specifying the particles' emission direction.
</member>
<member name="draw_order" type="int" setter="set_draw_order" getter="get_draw_order" enum="CPUParticles2D.DrawOrder" default="0">
Particle draw order. Uses [enum DrawOrder] values.
</member>
<member name="emission_colors" type="PoolColorArray" setter="set_emission_colors" getter="get_emission_colors">
</member>
<member name="emission_normals" type="PoolVector2Array" setter="set_emission_normals" getter="get_emission_normals">
</member>
<member name="emission_points" type="PoolVector2Array" setter="set_emission_points" getter="get_emission_points">
</member>
<member name="emission_rect_extents" type="Vector2" setter="set_emission_rect_extents" getter="get_emission_rect_extents">
The rectangle's extents if [member emission_shape] is set to [constant EMISSION_SHAPE_RECTANGLE].
</member>
<member name="emission_shape" type="int" setter="set_emission_shape" getter="get_emission_shape" enum="CPUParticles2D.EmissionShape" default="0">
Particles will be emitted inside this region. See [enum EmissionShape] for possible values.
</member>
<member name="emission_sphere_radius" type="float" setter="set_emission_sphere_radius" getter="get_emission_sphere_radius">
The sphere's radius if [member emission_shape] is set to [constant EMISSION_SHAPE_SPHERE].
</member>
<member name="emitting" type="bool" setter="set_emitting" getter="is_emitting" default="true">
If [code]true[/code], particles are being emitted.
</member>
<member name="explosiveness" type="float" setter="set_explosiveness_ratio" getter="get_explosiveness_ratio" default="0.0">
How rapidly particles in an emission cycle are emitted. If greater than [code]0[/code], there will be a gap in emissions before the next cycle begins.
</member>
<member name="fixed_fps" type="int" setter="set_fixed_fps" getter="get_fixed_fps" default="0">
The particle system's frame rate is fixed to a value. For instance, changing the value to 2 will make the particles render at 2 frames per second. Note this does not slow down the simulation of the particle system itself.
</member>
<member name="flag_align_y" type="bool" setter="set_particle_flag" getter="get_particle_flag" default="false">
Align Y axis of particle with the direction of its velocity.
</member>
<member name="flatness" type="float" setter="set_flatness" getter="get_flatness" default="0.0">
</member>
<member name="fract_delta" type="bool" setter="set_fractional_delta" getter="get_fractional_delta" default="true">
If [code]true[/code], results in fractional delta calculation which has a smoother particles display effect.
</member>
<member name="gravity" type="Vector2" setter="set_gravity" getter="get_gravity" default="Vector2( 0, 98 )">
Gravity applied to every particle.
</member>
<member name="hue_variation" type="float" setter="set_param" getter="get_param" default="0.0">
Initial hue variation applied to each particle.
</member>
<member name="hue_variation_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's hue will vary along this [Curve].
</member>
<member name="hue_variation_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Hue variation randomness ratio.
</member>
<member name="initial_velocity" type="float" setter="set_param" getter="get_param" default="0.0">
Initial velocity magnitude for each particle. Direction comes from [member spread] and the node's orientation.
</member>
<member name="initial_velocity_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Initial velocity randomness ratio.
</member>
<member name="lifetime" type="float" setter="set_lifetime" getter="get_lifetime" default="1.0">
Amount of time each particle will exist.
</member>
<member name="linear_accel" type="float" setter="set_param" getter="get_param" default="0.0">
Linear acceleration applied to each particle in the direction of motion.
</member>
<member name="linear_accel_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's linear acceleration will vary along this [Curve].
</member>
<member name="linear_accel_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Linear acceleration randomness ratio.
</member>
<member name="local_coords" type="bool" setter="set_use_local_coordinates" getter="get_use_local_coordinates" default="true">
If [code]true[/code], particles use the parent node's coordinate space. If [code]false[/code], they use global coordinates.
</member>
<member name="normalmap" type="Texture" setter="set_normalmap" getter="get_normalmap" default="null">
Normal map to be used for the [member texture] property.
</member>
<member name="one_shot" type="bool" setter="set_one_shot" getter="get_one_shot" default="false">
If [code]true[/code], only one emission cycle occurs. If set [code]true[/code] during a cycle, emission will stop at the cycle's end.
</member>
<member name="orbit_velocity" type="float" setter="set_param" getter="get_param" default="0.0">
Orbital velocity applied to each particle. Makes the particles circle around origin. Specified in number of full rotations around origin per second.
</member>
<member name="orbit_velocity_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's orbital velocity will vary along this [Curve].
</member>
<member name="orbit_velocity_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Orbital velocity randomness ratio.
</member>
<member name="preprocess" type="float" setter="set_pre_process_time" getter="get_pre_process_time" default="0.0">
Particle system starts as if it had already run for this many seconds.
</member>
<member name="radial_accel" type="float" setter="set_param" getter="get_param" default="0.0">
Radial acceleration applied to each particle. Makes particle accelerate away from origin.
</member>
<member name="radial_accel_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's radial acceleration will vary along this [Curve].
</member>
<member name="radial_accel_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Radial acceleration randomness ratio.
</member>
<member name="randomness" type="float" setter="set_randomness_ratio" getter="get_randomness_ratio" default="0.0">
Emission lifetime randomness ratio.
</member>
<member name="scale_amount" type="float" setter="set_param" getter="get_param" default="1.0">
Initial scale applied to each particle.
</member>
<member name="scale_amount_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's scale will vary along this [Curve].
</member>
<member name="scale_amount_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Scale randomness ratio.
</member>
<member name="speed_scale" type="float" setter="set_speed_scale" getter="get_speed_scale" default="1.0">
Particle system's running speed scaling ratio. A value of [code]0[/code] can be used to pause the particles.
</member>
<member name="spread" type="float" setter="set_spread" getter="get_spread" default="45.0">
Each particle's initial direction range from [code]+spread[/code] to [code]-spread[/code] degrees.
</member>
<member name="tangential_accel" type="float" setter="set_param" getter="get_param" default="0.0">
Tangential acceleration applied to each particle. Tangential acceleration is perpendicular to the particle's velocity giving the particles a swirling motion.
</member>
<member name="tangential_accel_curve" type="Curve" setter="set_param_curve" getter="get_param_curve" default="null">
Each particle's tangential acceleration will vary along this [Curve].
</member>
<member name="tangential_accel_random" type="float" setter="set_param_randomness" getter="get_param_randomness" default="0.0">
Tangential acceleration randomness ratio.
</member>
<member name="texture" type="Texture" setter="set_texture" getter="get_texture" default="null">
Particle texture. If [code]null[/code], particles will be squares.
</member>
</members>
<constants>
<constant name="DRAW_ORDER_INDEX" value="0" enum="DrawOrder">
Particles are drawn in the order emitted.
</constant>
<constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder">
Particles are drawn in order of remaining lifetime.
</constant>
<constant name="PARAM_INITIAL_LINEAR_VELOCITY" value="0" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set initial velocity properties.
</constant>
<constant name="PARAM_ANGULAR_VELOCITY" value="1" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set angular velocity properties.
</constant>
<constant name="PARAM_ORBIT_VELOCITY" value="2" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set orbital velocity properties.
</constant>
<constant name="PARAM_LINEAR_ACCEL" value="3" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set linear acceleration properties.
</constant>
<constant name="PARAM_RADIAL_ACCEL" value="4" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set radial acceleration properties.
</constant>
<constant name="PARAM_TANGENTIAL_ACCEL" value="5" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set tangential acceleration properties.
</constant>
<constant name="PARAM_DAMPING" value="6" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set damping properties.
</constant>
<constant name="PARAM_ANGLE" value="7" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set angle properties.
</constant>
<constant name="PARAM_SCALE" value="8" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set scale properties.
</constant>
<constant name="PARAM_HUE_VARIATION" value="9" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set hue variation properties.
</constant>
<constant name="PARAM_ANIM_SPEED" value="10" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set animation speed properties.
</constant>
<constant name="PARAM_ANIM_OFFSET" value="11" enum="Parameter">
Use with [method set_param], [method set_param_randomness], and [method set_param_texture] to set animation offset properties.
</constant>
<constant name="PARAM_MAX" value="12" enum="Parameter">
Represents the size of the [enum Parameter] enum.
</constant>
<constant name="FLAG_ALIGN_Y_TO_VELOCITY" value="0" enum="Flags">
Use with [method set_flag] to set [member flag_align_y].
</constant>
<constant name="FLAG_ROTATE_Y" value="1" enum="Flags">
Present for consistency with 3D particle nodes, not used in 2D.
</constant>
<constant name="FLAG_DISABLE_Z" value="2" enum="Flags">
Present for consistency with 3D particle nodes, not used in 2D.
</constant>
<constant name="FLAG_MAX" value="3" enum="Flags">
Represents the size of the [enum Flags] enum.
</constant>
<constant name="EMISSION_SHAPE_POINT" value="0" enum="EmissionShape">
All particles will be emitted from a single point.
</constant>
<constant name="EMISSION_SHAPE_SPHERE" value="1" enum="EmissionShape">
Particles will be emitted on the surface of a sphere flattened to two dimensions.
</constant>
<constant name="EMISSION_SHAPE_RECTANGLE" value="2" enum="EmissionShape">
Particles will be emitted in the area of a rectangle.
</constant>
<constant name="EMISSION_SHAPE_POINTS" value="3" enum="EmissionShape">
Particles will be emitted at a position chosen randomly among [member emission_points]. Particle color will be modulated by [member emission_colors].
</constant>
<constant name="EMISSION_SHAPE_DIRECTED_POINTS" value="4" enum="EmissionShape">
Particles will be emitted at a position chosen randomly among [member emission_points]. Particle velocity and rotation will be set based on [member emission_normals]. Particle color will be modulated by [member emission_colors].
</constant>
</constants>
</class>
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