From aa9c073931d46d8364d1394bf12bbca37d5cf252 Mon Sep 17 00:00:00 2001
From: Johannes Schmelz <johannes.schmelz@unibw.de>
Date: Sun, 13 Oct 2024 20:52:33 +0200
Subject: [PATCH] added sinking animation for destroyed ships

---
 .../client/gui/SeaSynchronizer.java           | 24 +++++++++
 .../battleship/client/gui/SinkingControl.java | 53 +++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SinkingControl.java

diff --git a/Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SeaSynchronizer.java b/Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SeaSynchronizer.java
index fc2a538..d330c74 100644
--- a/Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SeaSynchronizer.java
+++ b/Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SeaSynchronizer.java
@@ -96,6 +96,25 @@ class SeaSynchronizer extends ShipMapSynchronizer {
         return shotNode;
     }
 
+    /**
+     * Handles the sinking animation and removal of ship if destroyed
+     * @param ship the ship to be sunk
+     */
+    private void sinkAndRemoveShip(Battleship ship) {
+        Battleship wilkeningklaunichtmeinencode = ship;
+        final Node shipNode = (Node) getSpatial(wilkeningklaunichtmeinencode);
+        if (shipNode == null) return;
+
+        // Add sinking control to animate the sinking
+        shipNode.addControl(new SinkingControl(shipNode));
+
+        // Add particle effects
+        ParticleEmitter bubbles = particleFactory.createWaterSplash();
+        bubbles.setLocalTranslation(shipNode.getLocalTranslation());
+        shipNode.attachChild(bubbles);
+        bubbles.emitAllParticles();
+    }
+
     /**
      * Handles a hit by attaching its representation to the node that
      * contains the ship model as a child so that it moves with the ship.
@@ -149,6 +168,11 @@ class SeaSynchronizer extends ShipMapSynchronizer {
         flame.emitAllParticles();
         roundSpark.emitAllParticles();
 
+        //Checks if ship is destroyed and triggers animation accordingly
+        if (ship.isDestroyed()) {
+            sinkAndRemoveShip(ship);
+        }
+
         return null;
     }
 
diff --git a/Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SinkingControl.java b/Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SinkingControl.java
new file mode 100644
index 0000000..845d50e
--- /dev/null
+++ b/Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SinkingControl.java
@@ -0,0 +1,53 @@
+package pp.battleship.client.gui;
+
+import com.jme3.scene.control.AbstractControl;
+import com.jme3.math.Vector3f;
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.ViewPort;
+import com.jme3.scene.Node;
+
+/**
+ * Control that handles the sinking effect for destroyed ships.
+ * It will gradually move the ship downwards and then remove it from the scene.
+ */
+class SinkingControl extends AbstractControl {
+    private static final float SINK_DURATION = 5f;  // Duration of the sinking animation
+    private static final float SINK_SPEED = 0.1f;   // Speed at which the ship sinks
+    private float elapsedTime = 0;
+
+    private final Node shipNode;
+
+    /**
+     * Constructs a {@code SinkingControl} object with the shipNode to be to be sunk
+     * @param shipNode the node to handeld
+     */
+    public SinkingControl(Node shipNode) {
+        this.shipNode = shipNode;
+    }
+
+    /**
+     * Updated the Map to sink the ship
+     * 
+     * @param tpf time per frame
+     */
+    @Override
+    protected void controlUpdate(float tpf) {
+        // Update the sinking effect
+        elapsedTime += tpf;
+
+        // Move the ship down over time
+        Vector3f currentPos = shipNode.getLocalTranslation();
+        shipNode.setLocalTranslation(currentPos.x, currentPos.y - SINK_SPEED * tpf, currentPos.z);
+
+        // Check if sinking duration has passed
+        if (elapsedTime >= SINK_DURATION) {
+            // Remove the ship from the scene
+            shipNode.removeFromParent();
+        }
+    }
+
+    @Override
+    protected void controlRender(RenderManager rm, ViewPort vp) {
+        // No rendering-related code needed
+    }
+}