import sumolib
import pygame as pg

class Car:
    def initPath(self):
        startEdge=self.map.getEdge(self.route[self.index])
        nextEdge=self.map.getEdge(self.route[self.index+1])

        inverted=not (startEdge.getToNode()==nextEdge.getFromNode() or startEdge.getToNode()==nextEdge.getToNode)
        
        laneId=0 if inverted else 1
        self.laneShape=startEdge.getLane(laneId).getShape()
        if(inverted):
            self.laneShape.reverse()
        
    def __init__(self,carID,route,parentMap,surface):
        self.id=carID
        self.route=route
        self.map=parentMap
        self.index=0
        
        startEdge=self.map.getEdge(route[0])
        nextEdge=self.map.getEdge(route[1])
        
        self.initPath()

        self.pos=self.laneShape[0]

        self.surf=surface

    def draw(self):
        pg.draw.circle(self.surf,(255,0,0),self.map.convertPos(self.pos),5)
    
    def update(self,dt):
        lgt=self.v*dt
        while(lgt>0):
            pass