🔧 Port random fire option to KWin

kwin/fire/config.ui

@@ -17,13 +17,13 @@ SPDX-License-Identifier: GPL-3.0-or-later
    </rect>
   </property>
   <layout class="QGridLayout" name="gridLayout">
-            <item row="4" column="0">
-                <widget class="QLabel" name="label_4">
+   <item row="0" column="0">
+    <widget class="QLabel" name="label">
      <property name="text">
-                        <string>Gradient</string>
+      <string>Animation Time [ms]</string>
      </property>
      <property name="alignment">
-                        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+      <set>Qt::AlignmentFlag::AlignRight|Qt::AlignmentFlag::AlignTrailing|Qt::AlignmentFlag::AlignVCenter</set>
      </property>
     </widget>
    </item>
@@ -40,6 +40,16 @@ SPDX-License-Identifier: GPL-3.0-or-later
      </property>
     </widget>
    </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="label_3">
+     <property name="text">
+      <string>Scale</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignmentFlag::AlignRight|Qt::AlignmentFlag::AlignTrailing|Qt::AlignmentFlag::AlignVCenter</set>
+     </property>
+    </widget>
+   </item>
    <item row="1" column="1">
     <widget class="QDoubleSpinBox" name="kcfg_Scale">
      <property name="minimum">
@@ -50,17 +60,17 @@ SPDX-License-Identifier: GPL-3.0-or-later
      </property>
     </widget>
    </item>
-            <item row="3" column="0">
+   <item row="2" column="0">
     <widget class="QLabel" name="label_2">
      <property name="text">
       <string>Speed</string>
      </property>
      <property name="alignment">
-                        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+      <set>Qt::AlignmentFlag::AlignRight|Qt::AlignmentFlag::AlignTrailing|Qt::AlignmentFlag::AlignVCenter</set>
      </property>
     </widget>
    </item>
-            <item row="3" column="1">
+   <item row="2" column="1">
     <widget class="QDoubleSpinBox" name="kcfg_MovementSpeed">
      <property name="minimum">
       <double>-5.000000000000000</double>
@@ -70,17 +80,17 @@ SPDX-License-Identifier: GPL-3.0-or-later
      </property>
     </widget>
    </item>
-            <item row="1" column="0">
-                <widget class="QLabel" name="label_3">
+   <item row="3" column="0">
+    <widget class="QLabel" name="label_4">
      <property name="text">
-                        <string>Scale</string>
+      <string>Gradient</string>
      </property>
      <property name="alignment">
-                        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+      <set>Qt::AlignmentFlag::AlignRight|Qt::AlignmentFlag::AlignTrailing|Qt::AlignmentFlag::AlignVCenter</set>
      </property>
     </widget>
    </item>
-            <item row="4" column="1">
+   <item row="3" column="1">
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
       <widget class="KColorButton" name="kcfg_Gradient1">
@@ -119,20 +129,17 @@ SPDX-License-Identifier: GPL-3.0-or-later
      </item>
     </layout>
    </item>
-            <item row="7" column="1">
+   <item row="4" column="1">
     <widget class="QCheckBox" name="kcfg_3DNoise">
      <property name="text">
       <string>3D Noise</string>
      </property>
     </widget>
    </item>
-            <item row="0" column="0">
-                <widget class="QLabel" name="label">
+   <item row="5" column="1">
+    <widget class="QCheckBox" name="kcfg_RandomColor">
      <property name="text">
-                        <string>Animation Time [ms]</string>
-                    </property>
-                    <property name="alignment">
-                        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+      <string>Use Random Color</string>
      </property>
     </widget>
    </item>

kwin/fire/main.xml

@@ -36,5 +36,8 @@ SPDX-License-Identifier: GPL-3.0-or-later
     <entry name="3DNoise" type="Bool">
       <default>false</default>
     </entry>
+    <entry name="RandomColor" type="Bool">
+      <default>false</default>
+    </entry>
   </group>
 </kcfg>

kwin/fire/onAnimationBegin.js

@@ -0,0 +1,8 @@
+// SPDX-FileCopyrightText: Simon Schneegans <code@simonschneegans.de>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// This part is automatically included in the effect's source during the build process.
+// The code below is called whenever a window is closed or opened.
+
+let seed = Math.random();
+effect.setUniform(this.shader, 'uSeed', seed);

kwin/fire/onSettingsChanged.js

@@ -8,6 +8,8 @@
 effect.setUniform(this.shader, 'uDuration', this.duration * 0.001);
 effect.setUniform(this.shader, 'u3DNoise',
                   effect.readConfig('3DNoise', true) ? 1.0 : 0.0);
+effect.setUniform(this.shader, 'uRandomColor',
+                  effect.readConfig('RandomColor', true) ? 1.0 : 0.0);
 effect.setUniform(this.shader, 'uScale', effect.readConfig('Scale', 1.0));
 effect.setUniform(this.shader, 'uMovementSpeed', effect.readConfig('MovementSpeed', 1.0));
 effect.setUniform(this.shader, 'uGradient1', this.readRGBAConfig('Gradient1'));