I like all mobs to have a restricted field of vision. ie they can't see whats happening behind them, how would I accomplish this?
this is for all mobs pc and npc alike
ID:151107
 Apr 18 2001, 4:24 am
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Guy did something like this for SpaceTug, but I don't think it's easy... Is the above true? If so could you plz help me out. | |
Is the above true? If so could you plz help me out. Yep, it's true, and not that hard to implement, although it's an odd effect--I personally liked it, but a lot of people preferred the traditional view. Whenever the player moved, I simply set client.eye to the turf a few squares ahead of the player. So if you moved north, your mob would appear near the bottom of the screen, and so forth. I think probably the main reason some people didn't like it is that whenever you changed direction, your mob moved to a different edge of the map. And the movement didn't look as smooth. It never bothered me, though. | |
Yep, it's true, and not that hard to implement, although it's an odd effect--I personally liked it, but a lot of people preferred the traditional view. Whenever the player moved, I simply set client.eye to the turf a few squares ahead of the player. So if you moved north, your mob would appear near the bottom of the screen, and so forth. kewl, so I set client.eye. but what about NPC's ? | |
kewl, so I set client.eye. but what about NPC's ? To determine if an NPC can see something, just figure out where it is in relation to the NPC. Something like this: IsVisible(mob/mySrc, myTarget) //(Assumes myTarget is in mySrc's view list) var/targetDir = get_dir(mySrc, myTarget) if(targetDir in list(turn(mySrc.dir, 180), turn(mySrc.dir, 135), turn(mySrc.dir, -135)) return 0 else return 1 | |
IsVisible(mob/mySrc, myTarget) hmm I don't get it, I am a bit rusty, could you plz explain a little ;) | |
On 4/18/01 11:46 am Kaidorin wrote:
IsVisible(mob/mySrc, myTarget) I can! =) IsVisible(mob/mySrc, myTarget) //(Assumes myTarget is in mySrc's view list) var/targetDir = get_dir(mySrc, myTarget) if(targetDir in list(turn(mySrc.dir, 180), turn(mySrc.dir, 135), turn(mySrc.dir, -135)) return 0 else return 1 Get the direction from the source to the target. If the target is directly behind, or behind to the right or left (180 degrees, -135 degrees, 135 degrees), then the NPC can't see that target. If the target isn't behind the NPC, then it can. So basically you just use if(IsVisible(NPC, target)) //it can be seen, so do stuff | |
IsVisible(mob/mySrc, myTarget) Think I understand, now where do I put this stuff? | |
On 4/19/01 7:11 am Kaidorin wrote:
IsVisible(mob/mySrc, myTarget) IsVisible should be defined as its own top-level proc (i.e. proc/IsVisible()). Then in the NPC code, if he looks for a user, check IsVisible() when he finds a target. Eg. mob/NPC/proc/SearchForPrey() var/mob/M for(M in view(src)) if(IsVisible(src, M)) break; //M now contains a target if(!M) //if haven't found a target return //then quit else //attack M! | |
Sorry for reviving this ancient topic, however it's not worth it to make a new topic just to ask a simple question. Now, I am planning on using this method of offsetting client.eye by a few tiles when the player moves. However, what happens if they move right up to the edge of the map? "Ahh! Black screen! I can't see!" Not pretty. How did you "fix" this problem, Guy?
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Guy did something like this for SpaceTug, but I don't think it's easy...