Cursor based Menu System.

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ID:151538

Jun 1 2010, 3:27 pm

Gamekrazzy

Ok, I've come back to one of my old projects I was trying to pull off "Final Fantasy 3". Anyways Ive been working at it for a while, trying to pull off a sort of menu system using a cursor and arrows. I found a library on the In game menus for talking, and I implamented into my game, of course first trying to understand the code. Anyways, back to the main idea. I decided that because the cursor needed to be visible only to the player, I would use a client.image set up. I then used verbs for my movement of the cursor. I set everything for this as such:

//This is cut short, I used verbs that were specified to turfs
//only. And I would change the location based on the verb being used.
//Set up as macros of course.
obj/curser
    icon='curser.dmi'
    layer=10
    New(client/C)
        C.screen+=src
        Update(C)
    proc/Update(client/C)
        var/mob/M
        for (M in world)
            if (!isnull(C) && !isnull(M))
                if (M.key == C.key)
                    if(M.curser==0)
                        src.icon_state=""
                    if(M.curser==1)
                        src.icon_state="1"
                    if(M.location==0)
                        src.screen_loc="4,17"
                    if(M.location==1)
                        src.screen_loc="4,13"
                    if(M.location==2)
                        src.screen_loc="4,9"
                    if(M.location==3)
                        src.screen_loc="4,5"
                    if(M.location==4)
                        src.screen_loc="4,14"
                    if(M.location==5)
                        src.screen_loc="4,12"
                    if(M.location==6)
                        src.screen_loc="4,10"
                    if(M.location==7)
                        src.screen_loc="4,8"
                    if(M.location==8)
                        src.screen_loc="2,10"
                    ...()//That means there is more, in case you don't know.
        spawn(1) Update(C)

I want to know is this the best way of moving my cursor, or is there a better way, because it ends up being alot of space.

Jun 1 2010, 3:49 pm

GhostAnime

There's a certain formula involved with some of them, so use that to your advantage. switch() is your friend when comparing many values of the same variable and there's a much easier way to get the mob reference for the client (which is client.mob):

  proc/Update(client/C)
        var/mob/M = C.mob
        src.icon_state = M.curser==0?"":"1"  //  Mini-if statement. If curser == 0, then the state is "", otherwise it is "1"
        switch(M.location)
                if(0 to 3)   //  If M.location is 0, 1, 2, 3
                        src.screen_loc="4,[17-(4*M.location)]"
                if(4 to 7)
                        src.screen_loc="4,[14-(2*(M.location-4))]"
                if(8)
                        src.screen_loc="2,10"
                else
                        CRASH("Something is wrong here :(")

Jun 1 2010, 4:29 pm In response to GhostAnime
Gamekrazzy	Thanks, That is a neat concept, I cant believe I didn't see think of doing that. lol

Jun 1 2010, 4:39 pm In response to Gamekrazzy
GhostAnime	A lot of people don't see that. BTW, one thing I forgot to do in that snippet, is that you should call Update() when it actually is needed, not every 1/10th of a second... or at the very least that you should use while() instead of respawning it... Update(client/C) if(!istype(C)) return var/mob/M = C.mob while(C && M.curser_on) ... sleep(60)