/// <summary>
/// Builds the chain of Bodies with joints and add this chain into World.
/// </summary>
/// <param name="position">Direction and position of first chain member.</param>
/// <param name="boxLength">Chain member (rectangle) length</param>
/// <param name="boxWidth">Chain member (rectangle) height</param>
/// <param name="boxMass">Chain member mass</param>
/// <param name="spacing">Distance between chain members</param>
/// <param name="length">The chain length</param>
/// <param name="modelId">Id of the parent Model entity</param>
/// <returns>The list of Bodies created</returns>
public static IList <BaseModelBody> BuildChain(Vector2D position, Scalar boxLength, Scalar boxWidth, Scalar boxMass, Scalar spacing, Scalar length, Guid modelId)
{
var bodies = new List <BaseModelBody>();
ChainMember last = null;
for (Scalar x = 0; x < length; x += boxLength + spacing, position.X += boxLength + spacing)
{
var current = ChainMember.Create(CreateRectangle(boxWidth, boxLength, boxMass, new ALVector2D(0, position)), modelId);
Will.Instance.AddBody(current);
if (last != null)
{
var anchor = (current.State.Position.Linear + last.State.Position.Linear) * .5f;
var joint = new HingeJoint(last, current, anchor, new Lifespan())
{
DistanceTolerance = 50, Softness = 0.005f
};
last.EndJoint = current.BegJoint = joint;
Will.Instance.AddJoint(joint);
}
bodies.Add(current);
last = current;
}
return(bodies);
}
public FoodChain()
{
type = ChainMember.nul;
List <FoodChain> all = new List <FoodChain>();
all.Add(new FoodChain(ChainMember.shrub));
all.Add(new FoodChain(ChainMember.algae));
all.Add(new FoodChain(ChainMember.grass));
all.Add(new FoodChain(ChainMember.rabbit));
all.Add(new FoodChain(ChainMember.fish));
all.Add(new FoodChain(ChainMember.mouse));
all.Add(new FoodChain(ChainMember.cat));
all.Add(new FoodChain(ChainMember.eagle));
all[0].Predator.Add(all[3]);
all[1].Predator.Add(all[4]);
all[2].Predator.Add(all[3]);
all[2].Predator.Add(all[5]);
all[3].Prey.Add(all[0]);
all[3].Prey.Add(all[2]);
all[3].Predator.Add(all[7]);
all[4].Prey.Add(all[1]);
all[4].Predator.Add(all[6]);
all[5].Prey.Add(all[2]);
all[5].Predator.Add(all[6]);
all[5].Predator.Add(all[7]);
all[6].Prey.Add(all[4]);
all[6].Prey.Add(all[5]);
all[6].Predator.Add(all[7]);
all[7].Prey.Add(all[3]);
all[7].Prey.Add(all[5]);
all[7].Prey.Add(all[6]);
Predator.Add(all[0]);
Predator.Add(all[1]);
Predator.Add(all[2]);
}
public bool Query(ChainMember t, List <FoodChain> predator, List <FoodChain> prey)
{
if (type == t)
{
predator = Predator;
prey = Prey;
return(true);
}
for (int i = 0; i < Predator.Count; i++)
{
if (Predator[i].Query(t, predator, prey))
{
return(true);
}
}
return(false);
}
FoodChain(ChainMember m)
{
type = m;
}
