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Hyrule in Megadrive/Genesis

Posted: Sat Jan 05, 2019 11:18 pm
by Miquel
Before start designing my current game I made a prototype game based on Zelda from SNES to see if the “engine” was fully capable of redoing it. The graphics and the level design are taken from the mentioned game, do there are small differences, while the programing and level structures are completely done anew.

There are a few bugs or details that need to be polish, like two Links on screen or moments were the main character could be trapped; the only solution is to reset the console.

I have no intention to finish this alpha, or do anything else with it. It is just a showcase.

Disclaimer for the observant: this tread is only for maps more or less taken from SNES Zelda, probably I will open another one for the genuine ones, likely will be a development diary.

--- Features ---
Random music (not mine)
Multiple linked maps
Collision with scenario
Scenario can be updated, for example to open doors
Game stores data on cartridge RAM when in items menu (delete file to reset it)
Multiple collision layers
Collision and solid interaction with other characters
(…more… to be remembered and filled… )

--- Controls ---
On contact/push: dialogs, open doors, …
A button: interacting with scenario, for example “picking” bushes
A button: running
B and C buttons: should be for selected weapons, but it’s not done
Z button on 6 button controller: bring up the silly map
START+RIGHT on 3 button controller: bring up the silly map (TODO: CHECK IT)
START button: incipient items menu

To select the start point use the d-pad:
There are 5 start points
menu.jpg (160.72 KiB) Viewed 4356 times

--- Maps included ---
Kakariko and surroundings. [!!] You can go a few screens down/up/deep.
Move fast to avoid those soldiers
kakariko.jpg (207.92 KiB) Viewed 4356 times

Castle exterior:
Unfortunately you can’t go inside :(
castle.jpg (214.92 KiB) Viewed 4356 times

Re: Hyrule in Megadrive/Genesis

Posted: Sat Jan 05, 2019 11:20 pm
by Miquel
East palace (unfinished):
EastPalace.jpg (232.6 KiB) Viewed 4355 times

I also included two more more maps; explore them at your own risk. My advice: try to complete the mini-dungeon.

(221.91 KiB) Downloaded 303 times

I was thinking if there is enough interest I can do a video with the very simplistic but effective map editor, what do you think people?

Re: Hyrule in Megadrive/Genesis

Posted: Fri Jan 11, 2019 8:06 pm
by Cristiano Sword
It was incredible!
Make the video of the map editor, I really want to see how it was, if possible explain how you did.

Re: Hyrule in Megadrive/Genesis

Posted: Mon Jan 14, 2019 5:51 pm
by tryphon
The lack of color doesn't seem really noticeable :D

Using gens, I notice a lot of missed VBlank, even when not moving. What could so CPU consuming ?

Re: Hyrule in Megadrive/Genesis

Posted: Tue Jan 15, 2019 12:24 am
by Miquel
Cristiano Sword wrote:
Fri Jan 11, 2019 8:06 pm
It was incredible!
Make the video of the map editor, I really want to see how it was, if possible explain how you did.
Thanks buddy!
In the meantime perhaps you should take a look at Yoshi’s Island editors, it works whit the same idea, do I don’t know about their implementation.

Re: Hyrule in Megadrive/Genesis

Posted: Thu Jan 17, 2019 2:21 am
by Miquel
tryphon wrote:
Mon Jan 14, 2019 5:51 pm
The lack of color doesn't seem really noticeable :D
It's not only that but palettes are a tool for doing all sort of effects. That's what I miss more.
tryphon wrote:
Mon Jan 14, 2019 5:51 pm
Using gens, I notice a lot of missed VBlank, even when not moving. What could so CPU consuming ?
If nothing moves on screen: impossible. However, the way the columns/rows are updated is VERY slow due lack of prevision, the code was very idiotic, and it can give you up to 8 missed frames for second. This summer I redid most of the "engine". Now that I think of it, I post both things on this same forum.

The thing is that demo sends col/row updates one by one (no dma) during display period, which is sluggish, therefore takes too much time for that frame. Obviously if you deactivate other features it fits.

What must be done is put info in a buffer and send it during vblank. It inspired me to create a buffer based engine as I explained more or less here:

Re: Hyrule in Megadrive/Genesis

Posted: Tue Sep 17, 2019 8:24 am
by Miquel
I’m thinking on basing this game on some planet on the Solar System, perhaps Mars…

Which thinking of it, if you want to know, there are basically 4 main types of biotopes on Mars, in order:

a) Muddy dessert wit sporadic little mounts
b) African savanna
c) Scarp mountains
d) Cold forest

I don’t mean they are the same but are the closest think you know.

To survive on Mars you surely need a mask and a supply of extra oxygen, then survival instincts, and finally contact the locals for help.

So to close opened questions, yes: the movie ”The Martian” is unrealistic, but a movie doesn’t need to realistic be at all, as long as it follows its own rules it’s perfectly ok.

Re: Hyrule in Megadrive/Genesis

Posted: Fri Sep 20, 2019 5:37 pm
by Miquel

Things you can see right now: something close to camels, warthogs and small monkeys, something in between a savage dog and… a lion?, a… “drag race” with flying cars…, and a new big space station. Not bad for another day in Mars.

And like somebody has point out there are lakes on Mars; I only have seen the biggest and I can’t see one side from another. So you can even take holidays there.

We are currently moving towards Titan, let’s if it’s better suited for a game or not.

Re: Hyrule in Megadrive/Genesis

Posted: Fri Sep 20, 2019 11:34 pm
by Sik
May as well throw this in.

Assuming that what I had read some time ago isn't wrong, the kind of weather you see in the title screen of Arkagis Revolution (i.e. a nearly over "sunset") is about the closest you'll get to a sunny day in Mars. The atmosphere is much thinner than in Earth and hence there isn't enough air to make it bright.

Re: Hyrule in Megadrive/Genesis

Posted: Sun Sep 22, 2019 4:24 am
by Miquel
There are no big differences between Mars and Earth atmosphere. If you were on the surface you will see it less blue because there is less oxygen, but still blue, this element is what gives the color blue. There are clouds too, and it rains also. Someone said it’s blue with a touch of glowing ochre.

I’m sure you arrived at the same conclusion when I posited there are plants, trees, animals and persons living there.

I’m not a scientist but more the diplomat kind, and that’s why I’m double surprised that you don’t open fire whit something like “Mr. You-know-everything, who the hell are the locals?”.

But I’m going to talk about that space station that I mention earlier, that now is gone. It’s not really a space station, but more like a working-station-ship, shaped like an empty cylinder with 3 sub modules on its contour, 1 kilometer of radius wide (0.6 miles). It’s manned by the “Black People”, if you know them I’m sure you eye brown is in the ceiling now, and other(s) specie(s) I need to talk to first.

We call them “Black People” because their skin is black, no, not dark brown, but 100% black. They come from a black skin monkey with red hair, but now the hair seems to be completely gone. There are 2 subspecies, one tall, a little over us, another shorter, like 1.5 meters or so (5 feet). Very similar to us in shape but very skinny, you see their bones trough easily. Their faces are rounded and squared at the same time, very like the one of a child. Looking for a better name.

The reason why for some people, not necessarily only humans, their heart is beating fast right now is because these people is about 400,000 years older than us.

At some point a dish like shaped space ship came out of this gigantic station and they begin to attend few animals on Mars which needed some urgent care; but we know they knew they were observed, which makes me wonder. Thinking about this right now.

Re: Hyrule in Megadrive/Genesis

Posted: Sun Sep 22, 2019 5:56 pm
by Chilly Willy
I certainly hope you're talking about in the game as none of that applies to Mars in real life. :lol:

Assuming Mars had a reasonably thick atmosphere that humans could breath, the only difference between Earth and Mars during the day would be the absolute brightness, and Mars has an intensity that's still well above a brightly lit room. It's not nearly as bright as on Earth, but Earth bright is well beyond what's needed to be "bright". It doesn't look like it to us because human senses are almost always logarithmic rather than linear.

Re: Hyrule in Megadrive/Genesis

Posted: Mon Sep 23, 2019 12:49 pm
by Miquel
The best synthesis of the current and past situation I have seen on video is this one:

There are a few misses, the conclusion is wrong, but the background idea of how we arrived at this situation is, in a reduced form, correct.
For example, some ruins on the Moon is not the most spectacular thing you can tell about it, but I suppose he is forced to do so to be credible.

There are lots of planets that have a thick atmosphere, like that of Earth, but we can NOT breathe it. Sometimes will imply a fast death, like in one minute or two, other times you will be ill for days until death will became, is even possible to adapt to it after some years of illness.
I believe Mars is one of those last two. If you are planning on a travel to Mars better check for the quantity of oxygen and toxics; before buying the tickets.

I’m not sure if I understand the last part; if you can rephrase it I would be thankful.

Re: Hyrule in Megadrive/Genesis

Posted: Mon Sep 23, 2019 5:22 pm
by TmEE co.(TM)
Atmosphere of mars is just incredibly thin, roughly 100x thinner than earth. If it was 100x denser you could even breathe it for a limited amount of time, while there's possibly enough oxygen to sustain you, there's far too much carbon dioxide and you will get a CO2 poisoning from it.
The thiness also means there's not enough air pressure to sustain liquid water, it will sublimate into gas directly and any liquid water boils off immediately. If you went outside without a pressure suit you'll immeduately pass out due to your blood starting to boil.

Re: Hyrule in Megadrive/Genesis

Posted: Mon Sep 23, 2019 6:52 pm
by Miquel
Buddy, with all the love in the word, your exact statement already has been said and answered; I don’t see the point in repeating it.

Re: Hyrule in Megadrive/Genesis

Posted: Mon Oct 21, 2019 10:45 pm
by Miquel
Oh! I see what Chilly Willy meant: Earth has too much light from the Sun.

Well, you can say that for Mercury, Earth and Mars too, on all of them looking directly at the sun hurts, at different intensities, but the idea is the same. Really the only difference between Earth and Mars is on the last, Sun hurts less, but everything is, on practical effects, (very close to) the same.

The sweet spot seems to be on Ganymede, where is pretty easy to see light transform into the different components, for example on water refection the light from the Sun bounces into a rainbow effect pattern, extremely beautiful. Also since on this planet everything is smaller, even the inhabitants, you don’t need so powerful light to see thought, for example forests and oceans. Everything seems pretty well design in the Solar System, I must say.

But now be aware of some details: the intensity of the sun is noticeable minor, the Sun is no longer the thing that “protects you” and gives you energy just by staying there, perhaps is the start of a homesick felling. The other thing is, and that is only an speculation, maybe eyes adapt to the circumstances so this lovely arrange of colors could disappear in time and you could ending seeing just barely the same as on Earth, just not hurting.

It would be a great idea to ask the locals how they see things; it would be complicated conversation but an engaging one. Neptune is all blue, no matter where you look, and I know from the “Blue People”, who live there, that eyes adapt to colors too.

Next stop is Titan, in which the situation is somewhat similar to Ganymede, but there is something weird going on. Where is the red color? I mean, it’s pretty much the same as Earth, but with the gradient red diminish; everything seems bluish and greenish there.

Neptune is an estrange planet, don’t get me wrong is the most mesmerizing of them all, but also everything is upside down. First the Sun is something in between a Sun and a night star, that doesn’t give you light but marks the passage of time, that’s if you live close to the water surface, because on Neptune light comes from below. Also this planet is hotter than Earth, just a few degrees in the surface, so as you go deeper it becomes hotter and more illuminated. Even the sky is warp up, being neither day nor night time, but both.

By the way, in all mentioned planets/moons, except Mercury, the atmosphere is thick, similar to the Earth’s one.