added rudimentary effects when ships are hit

Projekte/battleship/client/build.gradle

@@ -9,6 +9,7 @@ dependencies {
     implementation project(":battleship:model")
 
     implementation libs.jme3.desktop
+    implementation libs.jme3.effects
 
     runtimeOnly libs.jme3.awt.dialogs
     runtimeOnly libs.jme3.plugins

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/ParticleEffectFactory.java

@@ -0,0 +1,243 @@
+package pp.battleship.client.gui;
+
+import com.jme3.effect.ParticleEmitter;
+import com.jme3.effect.ParticleMesh.Type;
+import com.jme3.effect.shapes.EmitterSphereShape;
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+import com.jme3.math.FastMath;
+import com.jme3.math.Vector3f;
+import pp.battleship.client.BattleshipApp;
+
+/**
+ * Factory class responsible for creating particle effects used in the game.
+ * This centralizes the creation of various types of particle emitters.
+ */
+public class ParticleEffectFactory {
+    private static final int COUNT_FACTOR = 1;
+    private static final float COUNT_FACTOR_F = 1f;
+    private static final boolean POINT_SPRITE = true;
+    private static final Type EMITTER_TYPE = POINT_SPRITE ? Type.Point : Type.Triangle;
+    
+    private final BattleshipApp app;
+
+    ParticleEffectFactory(BattleshipApp app) {
+        this.app = app;
+    }
+
+    /**
+     * Creates a flame particle emitter.
+     * 
+     * @return a configured flame particle emitter
+     */
+    ParticleEmitter createFlame() {
+        ParticleEmitter flame = new ParticleEmitter("Flame", EMITTER_TYPE, 32 * COUNT_FACTOR);
+        flame.setSelectRandomImage(true);
+        flame.setStartColor(new ColorRGBA(1f, 0.4f, 0.05f, (1f / COUNT_FACTOR_F)));
+        flame.setEndColor(new ColorRGBA(.4f, .22f, .12f, 0f));
+        flame.setStartSize(0.1f);
+        flame.setEndSize(0.5f);
+        flame.setShape(new EmitterSphereShape(Vector3f.ZERO, 1f));
+        flame.setParticlesPerSec(0);
+        flame.setGravity(0, -5, 0);
+        flame.setLowLife(.4f);
+        flame.setHighLife(.5f);
+        flame.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 7, 0));
+        flame.getParticleInfluencer().setVelocityVariation(1f);
+        flame.setImagesX(2);
+        flame.setImagesY(2);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/flame.png"));
+        mat.setBoolean("PointSprite", POINT_SPRITE);
+        flame.setMaterial(mat);
+
+        return flame;
+    }
+
+    /**
+     * Creates a flash particle emitter.
+     * 
+     * @return a configured flash particle emitter
+     */
+    ParticleEmitter createFlash() {
+        ParticleEmitter flash = new ParticleEmitter("Flash", EMITTER_TYPE, 24 * COUNT_FACTOR);
+        flash.setSelectRandomImage(true);
+        flash.setStartColor(new ColorRGBA(1f, 0.8f, 0.36f, 1f / COUNT_FACTOR_F));
+        flash.setEndColor(new ColorRGBA(1f, 0.8f, 0.36f, 0f));
+        flash.setStartSize(.1f);
+        flash.setEndSize(0.5f);
+        flash.setShape(new EmitterSphereShape(Vector3f.ZERO, .05f));
+        flash.setParticlesPerSec(0);
+        flash.setGravity(0, 0, 0);
+        flash.setLowLife(.2f);
+        flash.setHighLife(.2f);
+        flash.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 5f, 0));
+        flash.getParticleInfluencer().setVelocityVariation(1);
+        flash.setImagesX(2);
+        flash.setImagesY(2);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/flash.png"));
+        mat.setBoolean("PointSprite", POINT_SPRITE);
+        flash.setMaterial(mat);
+
+        return flash;
+    }
+
+    /**
+     * Creates a round spark particle emitter.
+     * 
+     * @return a configured round spark particle emitter
+     */
+    ParticleEmitter createRoundSpark() {
+        ParticleEmitter roundSpark = new ParticleEmitter("RoundSpark", EMITTER_TYPE, 20 * COUNT_FACTOR);
+        roundSpark.setStartColor(new ColorRGBA(1f, 0.29f, 0.34f, (float) (1.0 / COUNT_FACTOR_F)));
+        roundSpark.setEndColor(new ColorRGBA(0, 0, 0, 0.5f / COUNT_FACTOR_F));
+        roundSpark.setStartSize(0.2f);
+        roundSpark.setEndSize(0.8f);
+        roundSpark.setShape(new EmitterSphereShape(Vector3f.ZERO, 1f));
+        roundSpark.setParticlesPerSec(0);
+        roundSpark.setGravity(0, -.5f, 0);
+        roundSpark.setLowLife(1.8f);
+        roundSpark.setHighLife(2f);
+        roundSpark.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 3, 0));
+        roundSpark.getParticleInfluencer().setVelocityVariation(.5f);
+        roundSpark.setImagesX(1);
+        roundSpark.setImagesY(1);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/roundspark.png"));
+        mat.setBoolean("PointSprite", POINT_SPRITE);
+        roundSpark.setMaterial(mat);
+
+        return roundSpark;
+    }
+
+    /**
+     * Creates a spark particle emitter.
+     * 
+     * @return a configured spark particle emitter
+     */
+    ParticleEmitter createSpark() {
+        ParticleEmitter spark = new ParticleEmitter("Spark", Type.Triangle, 30 * COUNT_FACTOR);
+        spark.setStartColor(new ColorRGBA(1f, 0.8f, 0.36f, 1.0f / COUNT_FACTOR_F));
+        spark.setEndColor(new ColorRGBA(1f, 0.8f, 0.36f, 0f));
+        spark.setStartSize(.5f);
+        spark.setEndSize(.5f);
+        spark.setFacingVelocity(true);
+        spark.setParticlesPerSec(0);
+        spark.setGravity(0, 5, 0);
+        spark.setLowLife(1.1f);
+        spark.setHighLife(1.5f);
+        spark.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 20, 0));
+        spark.getParticleInfluencer().setVelocityVariation(1);
+        spark.setImagesX(1);
+        spark.setImagesY(1);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/spark.png"));
+        spark.setMaterial(mat);
+
+        return spark;
+    }
+
+    /**
+     * Creates a smoke trail particle emitter.
+     * 
+     * @return a configured smoke trail particle emitter
+     */
+    ParticleEmitter createSmokeTrail() {
+        ParticleEmitter smokeTrail = new ParticleEmitter("SmokeTrail", Type.Triangle, 22 * COUNT_FACTOR);
+        smokeTrail.setStartColor(new ColorRGBA(1f, 0.8f, 0.36f, 1.0f / COUNT_FACTOR_F));
+        smokeTrail.setEndColor(new ColorRGBA(1f, 0.8f, 0.36f, 0f));
+        smokeTrail.setStartSize(.2f);
+        smokeTrail.setEndSize(1f);
+        smokeTrail.setFacingVelocity(true);
+        smokeTrail.setParticlesPerSec(0);
+        smokeTrail.setGravity(0, 1, 0);
+        smokeTrail.setLowLife(.4f);
+        smokeTrail.setHighLife(.5f);
+        smokeTrail.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 12, 0));
+        smokeTrail.getParticleInfluencer().setVelocityVariation(1);
+        smokeTrail.setImagesX(1);
+        smokeTrail.setImagesY(3);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/smoketrail.png"));
+        smokeTrail.setMaterial(mat);
+
+        return smokeTrail;
+    }
+
+    /**
+     * Creates a debris particle emitter.
+     * 
+     * @return a configured debris particle emitter
+     */
+    ParticleEmitter createDebris() {
+        ParticleEmitter debris = new ParticleEmitter("Debris", Type.Triangle, 15 * COUNT_FACTOR);
+        debris.setSelectRandomImage(true);
+        debris.setRandomAngle(true);
+        debris.setRotateSpeed(FastMath.TWO_PI * 4);
+        debris.setStartColor(new ColorRGBA(1f, 0.59f, 0.28f, 1.0f / COUNT_FACTOR_F));
+        debris.setEndColor(new ColorRGBA(.5f, 0.5f, 0.5f, 0f));
+        debris.setStartSize(.10f);
+        debris.setEndSize(.15f);
+        debris.setParticlesPerSec(0);
+        debris.setGravity(0, 12f, 0);
+        debris.setLowLife(1.4f);
+        debris.setHighLife(1.5f);
+        debris.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 15, 0));
+        debris.getParticleInfluencer().setVelocityVariation(.60f);
+        debris.setImagesX(3);
+        debris.setImagesY(3);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/Debris.png"));
+        debris.setMaterial(mat);
+
+        return debris;
+    }
+
+    /**
+     * Creates a shockwave particle emitter.
+     * 
+     * @return a configured shockwave particle emitter
+     */
+    ParticleEmitter createShockwave() {
+        ParticleEmitter shockwave = new ParticleEmitter("Shockwave", Type.Triangle, 1 * COUNT_FACTOR);
+        shockwave.setFaceNormal(Vector3f.UNIT_Y);
+        shockwave.setStartColor(new ColorRGBA(.48f, 0.17f, 0.01f, .8f / COUNT_FACTOR_F));
+        shockwave.setEndColor(new ColorRGBA(.48f, 0.17f, 0.01f, 0f));
+        shockwave.setStartSize(0f);
+        shockwave.setEndSize(3f);
+        shockwave.setParticlesPerSec(0);
+        shockwave.setGravity(0, 0, 0);
+        shockwave.setLowLife(0.5f);
+        shockwave.setHighLife(0.5f);
+        shockwave.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 0, 0));
+        shockwave.getParticleInfluencer().setVelocityVariation(0f);
+        shockwave.setImagesX(1);
+        shockwave.setImagesY(1);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/shockwave.png"));
+        shockwave.setMaterial(mat);
+
+        return shockwave;
+    }
+
+    /**
+     * Creates a moving smoke emitter.
+     * 
+     * @return a configured smoke emitter
+     */
+    ParticleEmitter createMovingSmokeEmitter() {
+        ParticleEmitter smokeEmitter = new ParticleEmitter("SmokeEmitter", Type.Triangle, 300);
+        smokeEmitter.setGravity(0, 0, 0);
+        smokeEmitter.getParticleInfluencer().setVelocityVariation(1);
+        smokeEmitter.setLowLife(1);
+        smokeEmitter.setHighLife(1);
+        smokeEmitter.getParticleInfluencer().setInitialVelocity(new Vector3f(0, .5f, 0));
+        smokeEmitter.setImagesX(15); // Assuming the smoke texture is a sprite sheet with 15 frames
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Smoke/Smoke.png"));
+        smokeEmitter.setMaterial(mat);
+
+        return smokeEmitter;
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SeaSynchronizer.java

@@ -7,6 +7,7 @@
 
 package pp.battleship.client.gui;
 
+import com.jme3.effect.ParticleEmitter;
 import com.jme3.material.Material;
 import com.jme3.material.RenderState.BlendMode;
 import com.jme3.math.ColorRGBA;
@@ -47,6 +48,7 @@ class SeaSynchronizer extends ShipMapSynchronizer {
 
     private final ShipMap map;
     private final BattleshipApp app;
+    private final ParticleEffectFactory particleFactory;
 
     /**
      * Constructs a {@code SeaSynchronizer} object with the specified application, root node, and ship map.
@@ -59,6 +61,7 @@ class SeaSynchronizer extends ShipMapSynchronizer {
         super(app.getGameLogic().getOwnMap(), root);
         this.app = app;
         this.map = map;
+        this.particleFactory = new ParticleEffectFactory(app);
         addExisting();
     }
 
@@ -87,9 +90,47 @@ class SeaSynchronizer extends ShipMapSynchronizer {
         final Battleship ship = requireNonNull(map.findShipAt(shot), "Missing ship");
         final Node shipNode = requireNonNull((Node) getSpatial(ship), "Missing ship node");
 
-        final Geometry representation = createCylinder(shot);
-        representation.getLocalTranslation().subtractLocal(shipNode.getLocalTranslation());
-        shipNode.attachChild(representation);
+
+
+        // Create a new node specifically for the hit effects
+        Node hitEffectNode = new Node("HitEffectNode");
+
+        // Create particle effects
+        ParticleEmitter flame = particleFactory.createFlame();
+        ParticleEmitter flash = particleFactory.createFlash();
+        ParticleEmitter spark = particleFactory.createSpark();
+        ParticleEmitter roundSpark = particleFactory.createRoundSpark();
+        ParticleEmitter smokeTrail = particleFactory.createSmokeTrail();
+        ParticleEmitter debris = particleFactory.createDebris();
+        ParticleEmitter shockwave = particleFactory.createShockwave();
+        ParticleEmitter movingSmoke = particleFactory.createMovingSmokeEmitter();
+
+        // Attach all effects to the hitEffectNode
+        hitEffectNode.attachChild(flame);
+        hitEffectNode.attachChild(flash);
+        hitEffectNode.attachChild(spark);
+        hitEffectNode.attachChild(roundSpark);
+        hitEffectNode.attachChild(smokeTrail);
+        hitEffectNode.attachChild(debris);
+        hitEffectNode.attachChild(shockwave);
+        hitEffectNode.attachChild(movingSmoke);
+
+        // Set the local translation for the hit effect to the point of impact
+        hitEffectNode.setLocalTranslation(shot.getY() + 0.5f - shipNode.getLocalTranslation().x,
+                                          0.5f, // Adjust as needed for height above the ship
+                                          shot.getX() + 0.5f - shipNode.getLocalTranslation().z);
+
+        // Attach the hitEffectNode to the shipNode so it moves with the ship
+        shipNode.attachChild(hitEffectNode);
+
+        // Emit particles when the hit happens
+        flash.emitAllParticles();
+        spark.emitAllParticles();
+        smokeTrail.emitAllParticles();
+        debris.emitAllParticles();
+        shockwave.emitAllParticles();
+        flame.emitAllParticles();
+        roundSpark.emitAllParticles();
         
         return null;
     }
@@ -145,20 +186,11 @@ class SeaSynchronizer extends ShipMapSynchronizer {
      */
     private Spatial createShip(Battleship ship) {
         switch (ship.getLength()) {
-            case 4:
-                return createBattleship(ship);
-
-            case 3:
-                return createCV(ship);
-
-            case 2:
-                return createBattle(ship);
-
-            case 1:
-                return createSmallship(ship);
-        
-            default:
-                return createBox(ship);
+            case 4: return createBattleship(ship);
+            case 3: return createCV(ship);
+            case 2: return createBattle(ship);
+            case 1: return createSmallship(ship);
+            default: return createBox(ship);
         }
     }
 

Projekte/settings.gradle

@@ -19,6 +19,7 @@ dependencyResolutionManagement {
             library('jme3-testdata', 'org.jmonkeyengine', 'jme3-testdata').versionRef('jme')
             library('jme3-lwjgl', 'org.jmonkeyengine', 'jme3-lwjgl').versionRef('jme')
             library('jme3-lwjgl3', 'org.jmonkeyengine', 'jme3-lwjgl3').versionRef('jme')
+            library('jme3-effects', 'org.jmonkeyengine', 'jme3-effects').versionRef('jme')
 
             library('lemur', 'com.simsilica:lemur:1.16.0')
             library('lemur-proto', 'com.simsilica:lemur-proto:1.13.0')