From b22bd8b36aac000b08c83376835877aabd6d92b6 Mon Sep 17 00:00:00 2001
From: Lonami Exo <totufals@hotmail.com>
Date: Sun, 10 Sep 2017 11:15:34 +0200
Subject: [PATCH] Add a new explode effect

---
 android/assets/sound/effect_explode.mp3       | Bin 0 -> 4409 bytes
 .../io/github/lonamiwebs/klooni/Effect.java   |   7 +-
 .../klooni/effects/ExplodeEffect.java         |  74 ++++++++++++++++++
 3 files changed, 80 insertions(+), 1 deletion(-)
 create mode 100644 android/assets/sound/effect_explode.mp3
 create mode 100644 core/src/io/github/lonamiwebs/klooni/effects/ExplodeEffect.java

diff --git a/android/assets/sound/effect_explode.mp3 b/android/assets/sound/effect_explode.mp3
new file mode 100644
index 0000000000000000000000000000000000000000..6315c514b67cf062763685bc24bc6e9fde98c267
GIT binary patch
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diff --git a/core/src/io/github/lonamiwebs/klooni/Effect.java b/core/src/io/github/lonamiwebs/klooni/Effect.java
index 2c52f89..c495c33 100644
--- a/core/src/io/github/lonamiwebs/klooni/Effect.java
+++ b/core/src/io/github/lonamiwebs/klooni/Effect.java
@@ -24,6 +24,7 @@ import com.badlogic.gdx.math.MathUtils;
 import com.badlogic.gdx.math.Vector2;
 
 import io.github.lonamiwebs.klooni.effects.EvaporateEffect;
+import io.github.lonamiwebs.klooni.effects.ExplodeEffect;
 import io.github.lonamiwebs.klooni.effects.IEffect;
 import io.github.lonamiwebs.klooni.effects.SpinEffect;
 import io.github.lonamiwebs.klooni.effects.VanishEffect;
@@ -83,7 +84,8 @@ public class Effect {
                 new Effect("vanish", id++),
                 new Effect("waterdrop", id++),
                 new Effect("evaporate", id++),
-                new Effect("spin", id++)
+                new Effect("spin", id++),
+                new Effect("explode", id++)
         };
     }
 
@@ -108,6 +110,9 @@ public class Effect {
             case 3:
                 effect = new SpinEffect();
                 break;
+            case 4:
+                effect = new ExplodeEffect();
+                break;
         }
         effect.setInfo(deadCell, culprit);
         return effect;
diff --git a/core/src/io/github/lonamiwebs/klooni/effects/ExplodeEffect.java b/core/src/io/github/lonamiwebs/klooni/effects/ExplodeEffect.java
new file mode 100644
index 0000000..63daeab
--- /dev/null
+++ b/core/src/io/github/lonamiwebs/klooni/effects/ExplodeEffect.java
@@ -0,0 +1,74 @@
+package io.github.lonamiwebs.klooni.effects;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.math.Interpolation;
+import com.badlogic.gdx.math.MathUtils;
+import com.badlogic.gdx.math.Matrix4;
+import com.badlogic.gdx.math.Vector2;
+
+import io.github.lonamiwebs.klooni.game.Cell;
+
+public class ExplodeEffect implements IEffect {
+    private float age;
+    private Vector2 pos;
+    private float size;
+    private Color color;
+
+    private final static float EXPLOSION_X_RANGE = 0.25f;
+    private final static float EXPLOSION_Y_RANGE = 0.30f;
+    private final static float GRAVITY_PERCENTAGE = -0.60f;
+
+    class Shard {
+        final Vector2 pos, vel, acc;
+        final float size;
+
+        public Shard(final Vector2 pos, final float size) {
+            final float xRange = Gdx.graphics.getWidth() * EXPLOSION_X_RANGE;
+            final float yRange = Gdx.graphics.getHeight() * EXPLOSION_Y_RANGE;
+            vel = new Vector2(MathUtils.random(-xRange, +xRange), MathUtils.random(-yRange * 0.2f, +yRange));
+            acc = new Vector2(0f, Gdx.graphics.getHeight() * GRAVITY_PERCENTAGE);
+
+            this.size = size * MathUtils.random(0.40f, 0.60f);
+            this.pos = pos.cpy().add(this.size * 0.5f, this.size * 0.5f);
+        }
+
+        public void draw(final Batch batch, final float dt) {
+            vel.add(acc.x * dt, acc.y * dt).scl(0.99f);
+            pos.add(vel.x * dt, vel.y * dt);
+            Cell.draw(color, batch, pos.x, pos.y, size);
+        }
+
+        public boolean isDead() {
+            return pos.y - size < 0;
+        }
+    }
+
+    private Shard[] shards;
+
+    @Override
+    public void setInfo(Cell deadCell, Vector2 culprit) {
+        age = 0;
+        color = deadCell.getColorCopy();
+
+        shards = new Shard[MathUtils.random(4, 6)];
+        for (int i = 0; i != shards.length; ++i)
+            shards[i] = new Shard(deadCell.pos, deadCell.size);
+    }
+
+    @Override
+    public void draw(Batch batch) {
+        for (int i = 0; i != shards.length; ++i)
+            shards[i].draw(batch, Gdx.graphics.getDeltaTime());
+    }
+
+    @Override
+    public boolean isDone() {
+        for (int i = 0; i != shards.length; ++i)
+            if (!shards[i].isDead())
+                return false;
+
+        return true;
+    }
+}