extends RigidBody2D
class_name Critter

@export var stats:Dictionary ={
    "energy":Stat.new(100,100),
    "speed":Stat.new(5,100),
    "vision":Stat.new(5,100),
    "width":Stat.new(5,100),
    "height":Stat.new(5,100),
    "weight":Stat.new(5,100),
    "reproductionChance":Stat.new(0.5,100),
    "mutateChance":Stat.new(0.1,100),
    "color":Stat.new(Color.RED)
}

var collider: CollisionShape2D
var destination:Vector2

#inherit stats
func inheritStats(statDict:Dictionary):
    stats = statDict.duplicate(true)

func mutate():
    var mutations:float = stats["mutateChance"].value
    var numbOfstats =stats.size()
    var index = randi_range(0,numbOfstats-1)
    for i in range(numbOfstats):
        var stat:Stat = stats.values()[i].duplicate(true)
        if mutations>randf():
            mutations-=1
            if stat.value is float or stat.value is int:
                stat.value += randi_range(-1,1)
            elif  stat.value is Color:
                var newColor:Color = stat.value
                newColor.r += randi_range(-10,10)
                newColor.g += randi_range(-10,10)
                newColor.b += randi_range(-10,10)
                stat.value=newColor

        index+=1
        if index >= numbOfstats:
            index=0

func setup():
    collider = $CollisionShape2D
    contact_monitor =1
    max_contacts_reported+=16
    connect("body_entered", Callable(self, "_on_body_entered"))
    connect("body_exited", Callable(self, "_on_body_exited"))

    collider.modulate =stats["color"].value
    collider.scale.x=stats["width"].value
    collider.scale.y=stats["height"].value
    mass = stats["weight"].value

    for child in get_children():
        if child has_method("activate")==true:
            child.activate(self)

func _process(delta: float) -> void:
    move(delta)

func  _physics_process(_delta: float) -> void:
    physiscs_move()

#region movement
var travelTime:float =0

func move(delta):
    #timer
    travelTime +=delta
    if travelTime>=5:
        travelTime-=5
        #pick new destination
        destination = position +  Vector2(randf_range(-stats["vision"].value,stats["vision"].value),(randf_range(-stats["vision"].value,stats["vision"].value)))

func physiscs_move():
    #move
    var antiGrav = -Vector2.UP*980
    var dir =(destination-position).normalized()
    var moveForce = dir*mass*stats["speed"].value
    apply_force(moveForce*antiGrav)
#endregion

#region reproduction

var partners: Array[Array]

#func _on_body_entered(body: Node) -> void:
    #if body is Critter:
        #partners.append(body.stats.duplicate(true))

func _on_body_exited(body: Node) -> void:
    if partners.size()==0:return
    if body is not Critter:return

    #partners.append(stats)
    var children:int = int(stats["reproductionChance"].value)
    if randf()> stats["reproductionChance"].value - children:
        children+=1
        stats["reproductionChance"].value-=1

    #for c in range(children):
        #var baby_data:CritterData = CritterData.new()
        #baby_data.inherit(parents)
        #baby_data.mutate()
    #data. partners.clear()
#endregion