From 789713b00883e7c9d3a912d1b088441ab17c1244 Mon Sep 17 00:00:00 2001
From: reduz <reduzio@gmail.com>
Date: Thu, 20 May 2021 11:25:06 -0300
Subject: Support for 2D particles to collide against SDF

-Added SDF collision support for 2D particles
-Changed the SDF generation to be fully signed
---
 doc/classes/GPUParticles2D.xml    | 16 ++++++++++++++--
 doc/classes/GPUParticles3D.xml    |  6 ++++--
 doc/classes/ParticlesMaterial.xml |  2 +-
 doc/classes/RenderingServer.xml   |  2 +-
 4 files changed, 20 insertions(+), 6 deletions(-)

(limited to 'doc/classes')

diff --git a/doc/classes/GPUParticles2D.xml b/doc/classes/GPUParticles2D.xml
index ebe4e3b00d..ebd6d2b92c 100644
--- a/doc/classes/GPUParticles2D.xml
+++ b/doc/classes/GPUParticles2D.xml
@@ -31,7 +31,9 @@
 		<member name="amount" type="int" setter="set_amount" getter="get_amount" default="8">
 			Number of particles emitted in one emission cycle.
 		</member>
-		<member name="draw_order" type="int" setter="set_draw_order" getter="get_draw_order" enum="GPUParticles2D.DrawOrder" default="0">
+		<member name="collision_base_size" type="float" setter="set_collision_base_size" getter="get_collision_base_size" default="1.0">
+		</member>
+		<member name="draw_order" type="int" setter="set_draw_order" getter="get_draw_order" enum="GPUParticles2D.DrawOrder" default="1">
 			Particle draw order. Uses [enum DrawOrder] values.
 		</member>
 		<member name="emitting" type="bool" setter="set_emitting" getter="is_emitting" default="true">
@@ -40,7 +42,7 @@
 		<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">
+		<member name="fixed_fps" type="int" setter="set_fixed_fps" getter="get_fixed_fps" default="30">
 			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="fract_delta" type="bool" setter="set_fractional_delta" getter="get_fractional_delta" default="true">
@@ -70,6 +72,14 @@
 		<member name="texture" type="Texture2D" setter="set_texture" getter="get_texture">
 			Particle texture. If [code]null[/code], particles will be squares.
 		</member>
+		<member name="trail_enabled" type="bool" setter="set_trail_enabled" getter="is_trail_enabled" default="false">
+		</member>
+		<member name="trail_length_secs" type="float" setter="set_trail_length" getter="get_trail_length" default="0.3">
+		</member>
+		<member name="trail_section_subdivisions" type="int" setter="set_trail_section_subdivisions" getter="get_trail_section_subdivisions" default="4">
+		</member>
+		<member name="trail_sections" type="int" setter="set_trail_sections" getter="get_trail_sections" default="8">
+		</member>
 		<member name="visibility_rect" type="Rect2" setter="set_visibility_rect" getter="get_visibility_rect" default="Rect2( -100, -100, 200, 200 )">
 			The [Rect2] that determines the node's region which needs to be visible on screen for the particle system to be active.
 			Grow the rect if particles suddenly appear/disappear when the node enters/exits the screen. The [Rect2] can be grown via code or with the [b]Particles → Generate Visibility Rect[/b] editor tool.
@@ -82,5 +92,7 @@
 		<constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder">
 			Particles are drawn in order of remaining lifetime.
 		</constant>
+		<constant name="DRAW_ORDER_REVERSE_LIFETIME" value="2" enum="DrawOrder">
+		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/GPUParticles3D.xml b/doc/classes/GPUParticles3D.xml
index e5d6581ddc..76f0fdb406 100644
--- a/doc/classes/GPUParticles3D.xml
+++ b/doc/classes/GPUParticles3D.xml
@@ -126,7 +126,7 @@
 		</member>
 		<member name="sub_emitter" type="NodePath" setter="set_sub_emitter" getter="get_sub_emitter" default="NodePath(&quot;&quot;)">
 		</member>
-		<member name="trail_enabled" type="bool" setter="set_enable_trail" getter="is_trail_enabled" default="false">
+		<member name="trail_enabled" type="bool" setter="set_trail_enabled" getter="is_trail_enabled" default="false">
 		</member>
 		<member name="trail_length_secs" type="float" setter="set_trail_length" getter="get_trail_length" default="0.3">
 		</member>
@@ -144,7 +144,9 @@
 		<constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder">
 			Particles are drawn in order of remaining lifetime.
 		</constant>
-		<constant name="DRAW_ORDER_VIEW_DEPTH" value="2" enum="DrawOrder">
+		<constant name="DRAW_ORDER_REVERSE_LIFETIME" value="2" enum="DrawOrder">
+		</constant>
+		<constant name="DRAW_ORDER_VIEW_DEPTH" value="3" enum="DrawOrder">
 			Particles are drawn in order of depth.
 		</constant>
 		<constant name="EMIT_FLAG_POSITION" value="1" enum="EmitFlags">
diff --git a/doc/classes/ParticlesMaterial.xml b/doc/classes/ParticlesMaterial.xml
index 6d7f99a55b..3c364b621a 100644
--- a/doc/classes/ParticlesMaterial.xml
+++ b/doc/classes/ParticlesMaterial.xml
@@ -135,7 +135,7 @@
 		</member>
 		<member name="collision_bounce" type="float" setter="set_collision_bounce" getter="get_collision_bounce" default="0.0">
 		</member>
-		<member name="collision_enabled" type="bool" setter="set_collision_enabled" getter="is_collision_enabled" default="true">
+		<member name="collision_enabled" type="bool" setter="set_collision_enabled" getter="is_collision_enabled" default="false">
 		</member>
 		<member name="collision_friction" type="float" setter="set_collision_friction" getter="get_collision_friction" default="0.0">
 		</member>
diff --git a/doc/classes/RenderingServer.xml b/doc/classes/RenderingServer.xml
index 638b0bb297..7a345f726d 100644
--- a/doc/classes/RenderingServer.xml
+++ b/doc/classes/RenderingServer.xml
@@ -3388,7 +3388,7 @@
 		<constant name="PARTICLES_DRAW_ORDER_LIFETIME" value="1" enum="ParticlesDrawOrder">
 			Sort particles based on their lifetime.
 		</constant>
-		<constant name="PARTICLES_DRAW_ORDER_VIEW_DEPTH" value="2" enum="ParticlesDrawOrder">
+		<constant name="PARTICLES_DRAW_ORDER_VIEW_DEPTH" value="3" enum="ParticlesDrawOrder">
 			Sort particles based on their distance to the camera.
 		</constant>
 		<constant name="VIEWPORT_UPDATE_DISABLED" value="0" enum="ViewportUpdateMode">
-- 
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