Hyrule in Megadrive/Genesis

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Miquel
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Hyrule in Megadrive/Genesis

Post by Miquel » Sat Jan 05, 2019 11:18 pm

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:
menu.jpg
There are 5 start points
menu.jpg (160.72 KiB) Viewed 7242 times

--- Maps included ---
Kakariko and surroundings. [!!] You can go a few screens down/up/deep.
kakariko.jpg
Move fast to avoid those soldiers
kakariko.jpg (207.92 KiB) Viewed 7242 times

Castle exterior:
castle.jpg
Unfortunately you can’t go inside :(
castle.jpg (214.92 KiB) Viewed 7242 times
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Miquel
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Re: Hyrule in Megadrive/Genesis

Post by Miquel » Sat Jan 05, 2019 11:20 pm

East palace (unfinished):
EastPalace.jpg
EastPalace.jpg (232.6 KiB) Viewed 7241 times

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

DOWNLOAD THE ROM:
RockInHyrule.zip
(221.91 KiB) Downloaded 411 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?
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Cristiano Sword
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Re: Hyrule in Megadrive/Genesis

Post by Cristiano Sword » 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.
The Mega Drive Will Never Die In Our Hearts.

Project Leyria RPG for Sega Mega Drive / Genesis
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tryphon
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Re: Hyrule in Megadrive/Genesis

Post by tryphon » Mon Jan 14, 2019 5:51 pm

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 ?

Miquel
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Re: Hyrule in Megadrive/Genesis

Post by Miquel » Tue Jan 15, 2019 12:24 am

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.
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Miquel
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Re: Hyrule in Megadrive/Genesis

Post by Miquel » Thu Jan 17, 2019 2:21 am

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:
viewtopic.php?f=22&t=2890
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Miquel
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Re: Hyrule in Megadrive/Genesis

Post by Miquel » Tue Sep 17, 2019 8:24 am

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Last edited by Miquel on Wed Mar 18, 2020 8:48 pm, edited 1 time in total.
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Miquel
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Re: Hyrule in Megadrive/Genesis

Post by Miquel » Fri Sep 20, 2019 5:37 pm

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Last edited by Miquel on Wed Mar 18, 2020 8:48 pm, edited 1 time in total.
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Sik
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Re: Hyrule in Megadrive/Genesis

Post by Sik » Fri Sep 20, 2019 11:34 pm

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.
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Miquel
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Re: Hyrule in Megadrive/Genesis

Post by Miquel » Sun Sep 22, 2019 4:24 am

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Last edited by Miquel on Wed Mar 18, 2020 8:47 pm, edited 1 time in total.
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Chilly Willy
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Re: Hyrule in Megadrive/Genesis

Post by Chilly Willy » Sun Sep 22, 2019 5:56 pm

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.

Miquel
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Re: Hyrule in Megadrive/Genesis

Post by Miquel » Mon Sep 23, 2019 12:49 pm

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Last edited by Miquel on Wed Mar 18, 2020 8:47 pm, edited 3 times in total.
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TmEE co.(TM)
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Re: Hyrule in Megadrive/Genesis

Post by TmEE co.(TM) » Mon Sep 23, 2019 5:22 pm

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.
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