package io.sarl.demos.fireworks

import io.sarl.core.AgentTask
import io.sarl.core.Behaviors
import io.sarl.core.DefaultContextInteractions
import io.sarl.core.ExternalContextAccess
import io.sarl.core.Initialize
import io.sarl.core.InnerContextAccess
import io.sarl.core.Lifecycle
import io.sarl.core.Logging
import io.sarl.core.MemberJoined
import io.sarl.core.MemberLeft
import io.sarl.core.Schedules
import java.util.Random
import java.util.UUID
import java.util.Vector

agent Rocket {
	
	uses Lifecycle, Logging, Schedules, Behaviors, DefaultContextInteractions, InnerContextAccess, ExternalContextAccess
	var x : Double
	var y : Double
	var gravity : Double
	var speedx : Double
	var speedy : Double
	var fireQuantity : Integer
	var lifetime : Integer
	var frozen = false
	var exploded = false 
	var exited = false
	var grid: Positions
	var id: UUID
	var move: AgentTask
	
	on Exit [!hasMemberAgent]{
		emit(new Exit)
		killMe
	}
	
	on Exit [hasMemberAgent && !exited]{
		exploded = true
		frozen = true
		exited = true
		cancel(move, true)
		
		innerContext.defaultSpace.emit(new Exit)
	}
	
	on Freeze {
		this.frozen = occurrence.value
		if (frozen)
			cancel(move, true)
		if (!frozen)
			wake(new UpdateRocketPosition)
	}
	
	on Initialize {
		info("New rocket launched")
		var rnd = new Random()
		if (occurrence.parameters.size.equals(7)){
			x = occurrence.parameters.get(0) as Double
			y = occurrence.parameters.get(1) as Double
			speedx = occurrence.parameters.get(2) as Double
			speedy = occurrence.parameters.get(3) as Double
			gravity = occurrence.parameters.get(4) as Double
			fireQuantity = occurrence.parameters.get(5) as Integer
			grid = occurrence.parameters.get(6) as Positions
		} else {
			info("Error in Fireworks Initialize : bad parameters number")
		}
		lifetime = rnd.nextInt(5) * 300 + 300
		id = UUID.randomUUID
		
		move = atFixedDelay(30)[try{ 
			wake(new UpdateRocketPosition);}
			catch(e: Exception) {e.printStackTrace}]
	}
	
	on UpdateRocketPosition [isFromMe(occurrence) && !frozen && !exploded] {
		var vect = new Vector(2)
		x = x + speedx
		y = y + speedy
		vect.clear()
		vect.add(x)
		vect.add(y)
		lifetime = lifetime - 10
		if (grid!==null)
			grid.setRocketPosition(id, vect)
		if (lifetime <= 0){
			exploded = true
			cancel(move, true)
			grid.hideHocketPosition(id)
			wake(new Explode)
		}
	}
	
	on Explode {
		for (var i=0; i < fireQuantity; i++){
			spawnInContext(Fire, innerContext, x, y, grid, id)
		}
//		emit(new Launch)
	}

	on MemberLeft [!isFromMe(occurrence) && !frozen && !hasMemberAgent] {
		exited = true
		grid.removeRocketPosition(id)
//		emit(new Launch)
		killMe
	}
	
	on MemberJoined [!isFromMe(occurrence) && hasMemberAgent && memberAgentCount == fireQuantity]{
		innerContext.defaultSpace.emit(new FireReady)
	}
	
}