Added asteroid loot drops... you can't pick them up or anything

but they're there and fancy-looking.

Author: pspeed42

sigem/assets/Textures/light-burst.png

@@ -113,7 +113,7 @@ public Main() {
     }
 
     public void simpleInitApp() {
-        
+
         setPauseOnLostFocus(false);
         setDisplayFps(false);
         setDisplayStatView(false);

sigem/assets/Textures/power-up.png

@@ -54,6 +54,8 @@ public class ObjectType implements EntityComponent {
     public static final String TYPE_THRUST = "thrust";
     public static final String TYPE_MISSILE = "missile";
     public static final String TYPE_PLASMA_EXPLOSION = "plasmaExplosion";
+    public static final String TYPE_FUEL_DROP = "fuelDrop";
+    public static final String TYPE_SHIELD_DROP = "shieldDrop";
 
     private int type;
 

sigem/src/main/java/sigem/Main.java

@@ -96,7 +96,7 @@ public void newContact( Contact c ) {
             return;
         } 
 
-        log.info("contact:" + c + "  types:" + t1 + ", " + t2);        
+        //log.info("contact:" + c + "  types:" + t1 + ", " + t2);        
 
         if( ObjectType.TYPE_MISSILE.equals(t1) ) {
             // Blow up b2
@@ -150,6 +150,8 @@ protected void missileHit( Body missile, Body asteroid, Contact contact ) {
                                         size);            
         }     
 
+        gameEntities.lootDrop(ObjectType.TYPE_ASTEROID, debrisLoc, 1/asteroid.radius);
+ 
         // And remove the old one       
         ed.removeEntity(asteroid.bodyId);
     }

sigem/src/main/java/sigem/es/ObjectType.java

@@ -199,7 +199,7 @@ private Contact checkContact( Body b1, Body b2 ) {
         if( dist >= b1.radius + b2.radius ) {
             return null;
         } 
-        log.info("contact:" + b1.bodyId + " and:" + b2.bodyId);
+        //log.info("contact:" + b1.bodyId + " and:" + b2.bodyId);
         Contact c = new Contact(b1, b2);
         c.cn = b2.pos.subtract(b1.pos);
         c.cn.y = 0; // just in case

sigem/src/main/java/sigem/sim/AsteroidHitListener.java

@@ -36,6 +36,8 @@
 
 package sigem.sim;
 
+import java.util.*;
+
 import org.slf4j.*;
 
 import com.simsilica.es.*;
@@ -55,6 +57,7 @@ public class GameEntities extends AbstractGameSystem {
     static Logger log = LoggerFactory.getLogger(GameEntities.class);
 
     private EntityData ed;
+    private Random rand = new Random(0);
 
     public GameEntities( EntityData ed ) {
         this.ed = ed;
@@ -115,6 +118,43 @@ public EntityId createExplosion( Vec3d location, double size ) {
             );
         return result;
     }
+
+    private static String[] LOOT_TYPES = new String[] {
+            ObjectType.TYPE_FUEL_DROP,
+            ObjectType.TYPE_SHIELD_DROP
+        };    
+
+    public void lootDrop( String type, Vec3d location, double chance ) {
+        
+        // Always do it for testing
+        if( rand.nextDouble() >= chance ) {
+            return;
+        }
+
+        SimTime time = getManager().getStepTime();
+        
+        int count = rand.nextInt(2) + 1;
+log.info("loot count:" + count);        
+        for( int i = 0; i < count; i++ ) {
+            double x = rand.nextDouble() * 2 - 1;
+            double z = rand.nextDouble() * 2 - 1;
+            
+            Vec3d v = location.add(x, 0, z);
+            
+            String lootType = LOOT_TYPES[i];
+log.info("creating loot drop:" + lootType);            
+            EntityId loot = ed.createEntity();
+            ed.setComponents(loot,
+                new Position(v),
+                new SphereShape(0, new Vec3d()),
+                new MassProperties(1/5.0),
+                ObjectType.create(lootType, ed),
+                new Impulse(new Vec3d(x, 0, z), new Vec3d(0, 8, 0)),
+                new Decay(time.getTime(), time.getFutureTime(15))
+                ); 
+        }        
+            
+    }
 }
 
 

sigem/src/main/java/sigem/sim/CollisionSystem.java

@@ -263,6 +263,7 @@ protected Geometry createQuad( float size, String asset, BlendMode blendMode ) {
         //Material mat = globals.createMaterial(ColorRGBA.Blue, false).getMaterial();
         Material mat = globals.createMaterial(texture, false).getMaterial();
         mat.getAdditionalRenderState().setBlendMode(blendMode);
+        mat.setFloat("AlphaDiscardThreshold", 0.01f);
         geom.setQueueBucket(Bucket.Transparent);
         geom.rotate(-FastMath.HALF_PI, 0, 0);
         geom.setMaterial(mat);
@@ -321,15 +322,59 @@ protected Spatial createPlasmaExplosion( Entity entity ) {
         ColorRGBA color2 = new ColorRGBA(2, 1, 1, 0);
         mat.setColor("Color", color);
 
-        // Fade it out over five seconds.  We could have created a system to do
-        // this based on decay, blah blah... but this is really easy.
-        //getState(AnimationState.class).add(new ColorTween(color, ColorRGBA.White, new ColorRGBA(1, 1, 1, 0), 5));
         getState(AnimationState.class).add(new ColorTween(color, color1, color2, 2));
 
         result.attachChild(geom);
 
         return result;   
     }
+    
+    protected Spatial createDrop( Entity entity, ColorRGBA color ) {
+        Node result = new Node("thrust");
+        Geometry geom;
+        Material mat;
+        ColorRGBA pupColor, base, start, end;
+        
+        geom = createQuad(10, "Textures/light-burst.png", BlendMode.AlphaAdditive);
+        geom.move(0, -0.01f, 0);
+        mat = geom.getMaterial();
+        LayerComparator.setLayer(geom, 1);
+        
+        pupColor = color.clone();
+        base = new ColorRGBA(0.25f, 1f, 1f, 1);        
+        pupColor.interpolateLocal(base, 0.5f);
+            
+        start = pupColor.clone();
+        start.a = 1;
+        end = pupColor.clone();
+        end.a = 0;                       
+        mat.setColor("Color", pupColor);
+        
+        getState(AnimationState.class).add(Tweens.delay(10), new ColorTween(pupColor, start, end, 5));
+        
+        result.attachChild(geom);
+
+        geom = createQuad(2, "Textures/power-up.png", BlendMode.Alpha);
+        geom.move(0, 0, 0);
+        mat = geom.getMaterial();
+        LayerComparator.setLayer(geom, 2);
+        
+        pupColor = color.clone();
+        base = new ColorRGBA(0.75f, 0.75f, 0.75f, 1);        
+        pupColor.interpolateLocal(base, 0.5f);
+            
+        start = pupColor.clone();
+        start.a = 1;
+        end = pupColor.clone();
+        end.a = 0;                       
+        mat.setColor("Color", pupColor);
+        
+        getState(AnimationState.class).add(Tweens.delay(10), new ColorTween(pupColor, start, end, 5));
+
+        result.attachChild(geom);
+        
+        return result;        
+    }
 
     protected Spatial createModel( Entity entity ) {
         // Check to see if one already exists
@@ -361,6 +406,12 @@ protected Spatial createModel( Entity entity ) {
             case ObjectType.TYPE_PLASMA_EXPLOSION:
                 result = createPlasmaExplosion(entity);
                 break;
+            case ObjectType.TYPE_FUEL_DROP:
+                result = createDrop(entity, new ColorRGBA(1, 0.4f, 0.95f, 1));
+                break;
+            case ObjectType.TYPE_SHIELD_DROP:
+                result = createDrop(entity, new ColorRGBA(0.2f, 0.9f, 1f, 1));
+                break;
             default:        
                 throw new RuntimeException("Unknown spatial type:" + typeName); 
         }