/* Blaster Trail 2.0, by Foly 
   http://www.jazz2online.com/snippets/63/blaster-trail/ */

/***Constants***/
const int cSpreadSpeed = 2; //The higher this value the more the shards will spread perpendicular to the blasterbullet
const float cSlowDownSpeed = 6; //How much the shards slow down compared to the bullet
const int cTrailLifeTime= 70*1.5; //How long the shards will exist
const int cGreenDensityFactor = 6; //A lower factor gives more green shards
const int cBlueDensityFactor = 4; //A lower factor gives more blue shards

/**Other functions**/
void CreateShardTrail(int bulletID, bool greentrail) {
	int shardID = jjAddObject(OBJECT::SHARD, jjObjects[bulletID].xPos, jjObjects[bulletID].yPos, 0, CREATOR::PLAYER);
	jjObjects[shardID].special = 12;
	if (greentrail)
		jjObjectPresets[OBJECT::SHARD].determineCurAnim(ANIM::PICKUPS, 6+jjRandom()%4, true);
	else
		jjObjectPresets[OBJECT::SHARD].determineCurAnim(ANIM::PICKUPS, 44+jjRandom()%4, true);
	if (jjObjects[bulletID].direction != 0) {
		jjObjects[shardID].xSpeed = jjObjects[bulletID].xSpeed - jjObjects[bulletID].direction*cSlowDownSpeed;
		jjObjects[shardID].ySpeed = -cSpreadSpeed*(jjRandom()%32 - 16)/16;
	} else {
		jjObjects[shardID].xSpeed = -cSpreadSpeed*(jjRandom()%32 - 16)/16;
		jjObjects[shardID].ySpeed = jjObjects[bulletID].ySpeed + cSlowDownSpeed;
	}
}

/**Gameplay functions**/
void onMain() {
	for (int i = 0;	i < jjObjectCount; i++)
		if (jjObjects[i].isActive && jjObjects[i].creatorType == CREATOR::PLAYER) {
			//Shard Trail
			if (((jjGameTicks%cBlueDensityFactor == 0 && (jjObjects[i].eventID == OBJECT::ICEBULLET || jjObjects[i].eventID == OBJECT::ICEBULLETPU)) || (jjGameTicks%cGreenDensityFactor == 0 && jjObjects[i].eventID == OBJECT::BLASTERBULLET)) && jjObjects[i].state != STATE::EXPLODE) {
				CreateShardTrail(i, (jjObjects[i].eventID == OBJECT::BLASTERBULLET));
				continue;
			}

			//Maintain shard lifetime
			if (jjObjects[i].eventID == OBJECT::SHARD && jjObjects[i].special == 12) {
				jjObjects[i].age++;
				if (jjObjects[i].age > cTrailLifeTime)
					jjDeleteObject(i); 
				continue;
			}
		}
}