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Timed Emitting of Creatures (Survival Level Help)

Archive: 7 posts


Hey there.
My newest level in the works is my very first Survival Level.
The player will be in the center, on an elevated platform (equipped with a paintanator) and must shoot at creatures advancing from both sides (left & right.)
I've already made the creatures, and tried placing the emitters.
After watching the MM help video on Survival Challenges I learned of using switches set to Speed, which should gradually become faster (aka harder) over time.

My issue is: I don't know what are the proper settings for the emitters, as well as the timing switch.
I'm going to have 3 emitters on each side of the level, which will each be spawning a creature (6 in total.) But I don't want them all to spawn at once in waves, I'd like there to be some space in between, and if possible, some randomness, so that there won't always be a "wall" of creatures coming at you every time.

Should I make 6 separate Speed Switches, all with separate tracks and cars?
Should I set any of the emitter's to Sync?
How many creatures should I set for it to "be emitted at once?"

Thanks for reading, and I'd really appreciate some help.
In the mean time, I'm going to be searching for levels similar to what I'm looking to do, so that, maybe I can learn from them.
2009-04-10 21:08:00

Author:
h2hoes
Posts: 3


Well the max emitted should be enough for the creature to reach the player and overshoot them slightly to make sure they have a chance of killing them.

When you said 'I don't want waves' do you mean a constant wave? Because saying you want gaps if kinda what a wave based thing is.

You could easily do it by having your speeding up system and linking up each emitter to both the speed up mechanism and a 'pause' button.

So:


<Speed Up>------------XOR (Logic Gate)--------------<Pause mechanic>
< Output >
-> ---------Emitters

{}.....................Player...............{}


Edit: WRONG
2009-04-10 21:26:00

Author:
Shermzor
Posts: 1330


<Speed Up>------------XOR (Logic Gate)--------------<Pause mechanic>
< Output >
-> ---------Emitters

{}.....................Player...............{}

Thanks. I kind of understand what you're saying, and I think it's exactly what I'm looking for, but, sadly, I wish I could understand the diagram better.
I'm not quite sure how to go about starting that.
What do you mean by Pause Mechanic?
and are you saying that there should be a separate one of these per emitter?

I don't mean to pester you; this is the best response I've gotten, you were very informative. Could you just explain a little more specifically?

Thanks
2009-04-10 23:07:00

Author:
h2hoes
Posts: 3


Careful with this...I was working on a similar idea...emitting creatures (even simple ones) eats the thermo like there is no tomorrow...just a side note...2009-04-10 23:22:00

Author:
adlingtont
Posts: 321


Yeah hard to make a quick diagram when it shifts everything and I just realised I made a hiccup with including the speed up thing but I'll work around .

What you need:

Emitters

Then you get an AND gate (Randofu's are the best logic gates)

Method:

So my diagram was wrong if you want it to speed up by using just a straight connection of the speed up mode on a sensor but this actually means it's easier.

1: Make your speed mechanism. Easiest is to have a slow moving dolly with a magnetic key on it moving towards a stationary key. The key is set to speed.

2: Connect the speed to an AND gate.

3: Create a pause mechanic. This is simple, just make an emitter which emits a block with a mag key on it. The mag key activates a switch set to directional. Attach this to the other input of the AND.

4: Then link your AND (One shot output) to one emitter (Or multiples if you want the same spawn time).

You'd have to do this for each emitter but the gates are very low on the thermometer despite their size.

How it works:

So at the start when the player enters the level if you want a 'start the challenge button' you're going to have to make sure that the dolly (Speed Mechanism) is not emitted yet. If you want the challenge to already be going then you can not bother emitting the dolly.

So the dolly moves towards the key (slowly!). As it does the little arm on the AND gate will move back and forth and each time it touches the sensor it will spawn whatever the emitter makes.

Then depending on how you set up your pause mechanism the AND gate will suddenly stop working since one of its arms has moved away from the sensor (clearer when you see it) meaning your dolly arm can't reach the sensor and trigger it.

Now when I say 'depending on how its set up' I mean that you can set it so when the Pause mechanism emits its key you can either say "When this key is here the AND works" or you can invert it and say "when the key is not here the AND works".

So that's probably a bit complex because I'm explaining how I'm exploiting how logic gates are made in LBP but here is a diagram:

[SPEED-Dolly on wheels]-------> SensorA

[PAUSE-Mag Key emitted]------>SensorB

SensorA------->AND<---------SensorB

AND------>Emitter


So get a block of wood, shove on some wheels and a mag key. Add a mag key sensor to a distant block of wood wire it to the AND.

Make an emitter that emits a mag key and either choose to say whether you want they key to either activate or disable the sensor (invert or not). Wire that up to the AND.

Wire the AND to the emitter and repeat.

You can have a single SPEED and a single PAUSE mechanism for the whole level but to vary spawn times you'd have to adjust how fast the joints in the AND move.

Still bewildered and I'll make it for you if my PS3 works.
2009-04-10 23:59:00

Author:
Shermzor
Posts: 1330


AMAZING! Thanks for the second explanation.
I understand it MUCH better now, but I'm still encountering some difficulty.
The AND switch I got from Randofu (which looks great) isn't letting me attach the switch to anything, including an emitter. I think it's because of the AND switch being a shared object maybe?
So I'm currently working on replicating the AND so that I can fully use it.
Also, when you say
2: Connect the speed to an AND gate.
Do you mean connect the wire from the Speed Switch to one of the motor bolts in the AND? And if so, which one should I connect it to?

And I still am confused about the emitter emitting a block with a key on it. Where would I emit this to?

I appreciate your offer of making it for me. It would be a life-saver, but I wouldn't want to ask you to go through all that work.
However, I am sending you a friend invite on PSN (my name is h2hoes) and if you feel like it, I would gratefully accept it if you have the time to build it.
2009-04-11 23:51:00

Author:
h2hoes
Posts: 3


AMAZING! Thanks for the second explanation.
I understand it MUCH better now, but I'm still encountering some difficulty.
The AND switch I got from Randofu (which looks great) isn't letting me attach the switch to anything, including an emitter. I think it's because of the AND switch being a shared object maybe?
So I'm currently working on replicating the AND so that I can fully use it.
Also, when you say
Do you mean connect the wire from the Speed Switch to one of the motor bolts in the AND? And if so, which one should I connect it to?

And I still am confused about the emitter emitting a block with a key on it. Where would I emit this to?

I appreciate your offer of making it for me. It would be a life-saver, but I wouldn't want to ask you to go through all that work.
However, I am sending you a friend invite on PSN (my name is h2hoes) and if you feel like it, I would gratefully accept it if you have the time to build it.


1: The standard output for his gates is directional so you'll have to change it before you can link it to your emitter. Also it doesn't matter which bolt, both are needed to make it work at all so you'll still require the PAUSE mechanic to trigger the other bolt.

2: The block just has to be emitted to touch the switch; a premade one is made by my friend 'Devils Deamon' or if I misspelt (maybe no space?) it I've hearted him. His time logic is basically what I'm talking about.

3:Trust me it wouldn't take long to make a quick version but with my PS3 as unreliable as it is I won't promise. I should be able to make it tomorrow.


EDIT: missed out your speed thing; attach it to the bolt on the AND so it will move faster and so create the creatures more quickly.
2009-04-12 00:09:00

Author:
Shermzor
Posts: 1330


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