CATROID-1071 GoToRandomPositionAction refactor

Refactor GoToRandomPositionAction.java and GoToRandomPositionActionTest.java to Kotlin

catroid/src/main/java/org/catrobat/catroid/content/actions/GoToRandomPositionAction.kt

@@ -0,0 +1,48 @@
+/*
+ * Catroid: An on-device visual programming system for Android devices
+ * Copyright (C) 2010-2022 The Catrobat Team
+ * (<http://developer.catrobat.org/credits>)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * An additional term exception under section 7 of the GNU Affero
+ * General Public License, version 3, is available at
+ * http://developer.catrobat.org/license_additional_term
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.catrobat.catroid.content.actions
+
+import com.badlogic.gdx.scenes.scene2d.actions.TemporalAction
+import org.catrobat.catroid.common.ScreenValues
+import org.catrobat.catroid.content.Sprite
+
+class GoToRandomPositionAction : TemporalAction() {
+    private var sprite: Sprite? = null
+    var randomXPosition: Float = 0f
+        private set
+    var randomYPosition: Float = 0f
+        private set
+
+    override fun update(percent: Float) {
+        randomXPosition = Math.random()
+            .toFloat() * (ScreenValues.currentScreenResolution.width + 1) - (ScreenValues.currentScreenResolution.width / 2)
+        randomYPosition = Math.random()
+            .toFloat() * (ScreenValues.currentScreenResolution.height + 1) - (ScreenValues.currentScreenResolution.height / 2)
+
+        sprite!!.look.setPositionInUserInterfaceDimensionUnit(randomXPosition, randomYPosition)
+    }
+
+    fun setSprite(sprite: Sprite?) {
+        this.sprite = sprite
+    }
+}

catroid/src/test/java/org/catrobat/catroid/test/content/actions/GoToRandomPositionActionTest.kt

@@ -0,0 +1,80 @@
+/*
+ * Catroid: An on-device visual programming system for Android devices
+ * Copyright (C) 2010-2022 The Catrobat Team
+ * (<http://developer.catrobat.org/credits>)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * An additional term exception under section 7 of the GNU Affero
+ * General Public License, version 3, is available at
+ * http://developer.catrobat.org/license_additional_term
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.catrobat.catroid.test.content.actions
+
+import junit.framework.Assert
+import org.catrobat.catroid.common.BrickValues
+import org.catrobat.catroid.common.ScreenValues
+import org.catrobat.catroid.content.ActionFactory
+import org.catrobat.catroid.content.Sprite
+import org.catrobat.catroid.content.actions.GoToRandomPositionAction
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.rules.ExpectedException
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+
+@RunWith(JUnit4::class)
+class GoToRandomPositionActionTest {
+    @JvmField
+    @Rule
+    val exception: ExpectedException = ExpectedException.none()
+
+    private var sprite: Sprite? = null
+    private var dummySprite: Sprite? = null
+    private var action: GoToRandomPositionAction? = null
+
+    @Before
+    @Throws(Exception::class)
+    fun setUp() {
+        sprite = Sprite("testSprite")
+        dummySprite = Sprite("dummySprite")
+        ScreenValues.setToDefaultScreenSize()
+        action = sprite!!.actionFactory.createGoToAction(
+            sprite, dummySprite, BrickValues.GO_TO_RANDOM_POSITION
+        ) as GoToRandomPositionAction
+    }
+
+    @Test
+    fun testGoToOtherSpriteAction() {
+        sprite!!.look.xInUserInterfaceDimensionUnit = 0f
+        sprite!!.look.yInUserInterfaceDimensionUnit = 0f
+
+        Assert.assertEquals(0f, sprite!!.look.xInUserInterfaceDimensionUnit)
+        Assert.assertEquals(0f, sprite!!.look.yInUserInterfaceDimensionUnit)
+
+        action!!.act(1f)
+
+        Assert.assertEquals(action!!.randomXPosition, sprite!!.look.xInUserInterfaceDimensionUnit)
+        Assert.assertEquals(action!!.randomYPosition, sprite!!.look.yInUserInterfaceDimensionUnit)
+    }
+
+    @Test
+    fun testNullActor() {
+        val factory = ActionFactory()
+        val action = factory.createGoToAction(null, dummySprite, BrickValues.GO_TO_RANDOM_POSITION)
+        exception.expect(NullPointerException::class.java)
+        action.act(1.0f)
+    }
+}