added projectile

config/spark_config.json

@@ -5,10 +5,10 @@
     "biasX": 0.3,
     "emissionPoints": [
         {
-            "position": [-2.1, 0.9, 5.0]
+            "position": [-2.1, 0.4, 5.0]
         },
         {
-            "position": [2.1, 0.9, 5.0]
+            "position": [2.1, 0.4, 5.0]
         }
     ],
     "speedRange": [0.5, 2.0],

config/spark_projectile_config.json

@@ -0,0 +1,15 @@
+{
+    "emissionPoints": [
+      { "position": [0.0, 0.0, 0.0] }
+    ],
+    "texture": "./resources/sand.png",
+    "speedRange": [10.0, 30.0],
+    "zSpeedRange": [-1.0, 1.0],
+    "scaleRange": [0.5, 1.0],
+    "lifeTimeRange": [200.0, 800.0],
+    "emissionRate": 50.0,
+    "maxParticles": 10,
+    "particleSize": 0.09,
+    "biasX": 0.1,
+    "shaderProgramName": "default"
+  }