public override Vector2 GetVector(GameObject obj)
{
AIReactions reaction;
Vector2 reactionVector = Vector2.Zero;
float distance = Math.Abs(Vector2.Distance(mEnemy.Position, obj.Position));
if (distance > 30.0f)
{
//The current vector of the mouse
Vector2 result = obj.Position - this.mEnemy.Position;
//Do some awesome trig
double radian = Math.Atan(result.Y / result.X);
float rotation = (float)radian;
if (obj.Position.X <= this.mEnemy.Position.X)
{
//We have to subtract pi from it to get the correct radian angle
rotation = rotation - (float)Math.PI;
}
reactionVector = new Vector2((float)Math.Cos(rotation), (float)Math.Sin(rotation));
reaction = new AIReactions(rotation, reactionVector);
}
else
{
//Align it
reactionVector = obj.Direction;
}
return reactionVector;
}
public AIReactions ReactToObjects(List<GameObject> objects)
{
mReactionVector = Vector2.Zero;
mTotalRotation = 0.0f;
foreach (GameObject obj in objects)
{
numOfObjectsSeen++;
float distance = Vector2.Distance(this.mEnemy.Position, obj.Position);
//So we don't get a negative answer
distance = Math.Abs(distance);
Vector2 reaction;
switch (GetProperReaction(obj, obj.Type))
{
case "Align":
reaction = mAlign.GetVector(obj);
mReactionVector += reaction;
break;
//case "Dodge":
// reaction = mDodge.GetVector(obj);
// mReactionVector += reaction;
// break;
case "Cohesion":
reaction = mCohesion.GetVector(obj);
mReactionVector += reaction;
break;
case "Idle":
numOfObjectsSeen--;
reaction = mIdle.GetVector(obj);
mReactionVector += reaction;
break;
case "Chase":
reaction = mChase.GetVector(obj);
mReactionVector += reaction;
break;
default:
numOfObjectsSeen--;
reaction = mIdle.GetVector(obj);
mReactionVector += reaction;
break;
}
}
//This will result in a proper vector
if (numOfObjectsSeen <= 0) //we don't to freak out the computer
{
if (mReactionVector.X <= 0.0f)
{
mTotalRotation -= (float)Math.PI;
}
return new AIReactions(mTotalRotation, mReactionVector);
}
mReactionVector /= numOfObjectsSeen;
if (mReactionVector == Vector2.Zero)
{
return new AIReactions(0.0f, mReactionVector);
}
mTotalRotation = (float)Math.Atan(mReactionVector.Y / mReactionVector.X);
Vector2 temp = new Vector2(this.Enemy.Position.X, 0.0f);
if (mReactionVector.X <= 0.0f)
{
mTotalRotation -= (float)Math.PI;
}
mReturnReaction = new AIReactions(mTotalRotation, mReactionVector);
numOfObjectsSeen = 0;
return mReturnReaction;
}
