360 Pixel Movement

ID:263438
 
Jan 1 2007, 10:27 am
Code:
mob
    var
        py=0
        px=0
        ry=4
        rx=4
        angle=0
        realicon 
        speed = 5

mob
    proc
        Update()
            var/icon/myicon=new/icon(usr.realicon)
            myicon.Turn(usr.angle)
            icon = myicon
        
        
client
    
    East()
        mob.angle +=15
        mob.Update()
    West()
        mob.angle -=15
        mob.Update()
    North()
        var/turf/T = locate(mob.x,mob.y+1,mob.z)
        if(T.density==1)
            return
        else
            mob.speed = abs(mob.speed)
            mob.pixel_x+=sin(mob.angle)*mob.speed
            mob.pixel_y+=cos(mob.angle) *mob.speed
            if(mob.pixel_x>=96)
                mob.pixel_x=0
                mob.x+=3
            if(mob.pixel_y>=96)
                mob.pixel_y=0
                mob.y+=3
    South()
        var/turf/T = locate(mob.x,mob.y-2,mob.z)
        if(T.density==1)
            return
        else
            mob.speed = abs(mob.speed)
            mob.pixel_x-=sin(mob.angle)*mob.speed
            mob.pixel_y-=cos(mob.angle) *mob.speed
            if(mob.pixel_x<=-96)
                mob.pixel_x=0
                mob.x-=3
            if(mob.pixel_y<=-96)
                mob.pixel_y=0
                mob.y-=3


Problem description:
I have two problems, first, when I go west and when I get close to the end of the screen then there is like a invisible wall blocking me from continuing, but all of the other directions work. My second problem is the collision. When I hit a wall by pressing north it stops but if I back on up and try pressing north again nothing will happen.
Jan 2 2007, 2:19 am
for the west problem try this:
    West()
        mob.angle -=15
        if(mob.angle<0)mob.angle+=360
        mob.Update()

it may not have worked before because you're trying to make it a negative angle

also you might want to do this for the east to make it neater (and might stop futur bugs):
    East()
        mob.angle +=15
        if(mob.angle>360)mom.angle-=360
        mob.Update()