public void Run(ILSystem lSystem, IDrawContext drawCtx, int generation, string rule, ref GenerationState genState)
{
if (rule == "F" || rule == "")
{
genState.time -= this.Cost;
this.segments++;
//if (draw && genState.time >= 0)
if (genState.time >= 0)
{
genState.length = Math.Min(genState.length, genState.length * genState.time);
var state = drawCtx.CurrentState;
var p1 = state.Translation;
drawCtx.Translate(this.SegmentAxis * genState.length);
var p2 = state.Translation;
if (lSystem.Timed)
{
this.Segment.Segment(p1, p2, generation, genState.time, this.segments);
}
else
{
this.Segment.Segment(p1, p2, generation, -1, this.segments);
}
}
}
}
public Plant(ILSystem lindenMayerSystem, TurtlePen turtlePen, PersistentPlantGeometryStorage geometryStorage, Vector3 position, Color leafColour)
{
LindenMayerSystem = lindenMayerSystem;
_turtlePen = turtlePen;
GeometryStorage = geometryStorage;
Position = position;
LindenMayerSystem.SetLeafColour(leafColour);
}
public void Run(ILSystem lSystem, IDrawContext drawCtx, int generation, string c, ref GenerationState genState)
{
// Standard command symbols:
// f signifies a move,
// + and - rotate either left or right, | rotates 180 degrees,
// [ and ] are for push() and pop(), e.g. offshoot branches,
// < and > decrease or increases the segment length,
// ( and ) decrease or increases the rotation angle.
if (c == "f")
{
drawCtx.Translate(this.SegmentAxis * -Math.Min(genState.length, genState.length * genState.time));
}
else if (c == "-")
{
drawCtx.Rotate(this.AngleAxis, Math.Min(+genState.angle, +genState.angle * genState.time));
}
else if (c == "+")
{
drawCtx.Rotate(this.AngleAxis, Math.Max(-genState.angle, -genState.angle * genState.time));
}
else if (c == "|")
{
drawCtx.Rotate(this.AngleAxis, 180f);
}
else if (c == "[")
{
drawCtx.Push();
}
else if (c == "]")
{
drawCtx.Pop();
}
// Non-drawing constants
else if (c == "!")
{
genState.angle -= genState.angle;
}
else if (c == "(")
{
genState.angle *= 1.1f;
}
else if (c == ")")
{
genState.angle *= 0.9f;
}
else if (c == "<")
{
genState.length *= 0.9f;
}
else if (c == ">")
{
genState.length *= 1.1f;
}
}
public List <ILSystem> ChooseParents(List <Tuple <ILSystem, float> > plantsAndFitness)
{
ILSystem firstParent = RouletteWheelChoice(plantsAndFitness);
ILSystem secondParent = RouletteWheelChoice(plantsAndFitness.Where(x => x.First != firstParent).ToList());
return(new List <ILSystem>
{
firstParent,
secondParent
});
}
public void StartGeneticAlgorithm()
{
_iterations = 0;
_currentPlant = 0;
_finalRender = false;
if (_iterationText != null)
{
_iterationText.text = "Iterations: " + _iterations;
}
System.Random randomGenerator = new System.Random();
LSystemGenerator lindenMayerSystemGenerator = LSystemGenerator.Instance();
List <Plant> initialPopulation = new List <Plant>();
//List<LSystem> staticLSystemSet = lindenMayerSystemGenerator.GetStaticLSystemSets().ConvertAll(x => new LSystem(x.GetRuleSet(), "A"));
for (int i = 0; i < 50; ++i)
{
//ILSystem randomLSystem = staticLSystemSet[i];
ILSystem randomLSystem = lindenMayerSystemGenerator.GenerateRandomLSystem();
initialPopulation.Add(new Plant(randomLSystem, _fakeTurtlePen, new PersistentPlantGeometryStorage(), Vector3.zero, new Color((float)randomGenerator.NextDouble(), (float)randomGenerator.NextDouble(), (float)randomGenerator.NextDouble())));
}
_plants = initialPopulation;
}
