I think that the name of this thread should be "Enhanced Gameboy Zelda Engine", don't you?
You are probably right
. The only thing that's actually exactly from the original gameboy games is the screen resolution.
I thought I'd go ahead and post what I have done on the upcoming version so far, to keep you guys updated.
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Upcoming Version 1.0.0.0
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-Updated the Golden Shovel to dig all 8 tiles (if possible) around Link as well as giving him double spoils.
-Implemented a pausing system.
-Implemented the equipment menu.
-Implemented the chest system.
-Implemented the item holding system.
-Implemented the Level 1-4 Swords (Fighter's, Master, Tempered and Golden).
-Implemented the Sword Beam system.
-Implemented the bush system.
-Implemented the leaf particle system.
-Implemented the random item drop script.
-Implemented the Heart Piece and Heart Container systems.
-Removed all testing keys.
-Implemented Rain and Thunder.
-Updated the rupee system to increase or decrease the counter by higher rates than 1, based on how much the counter is going to be affected.
-Improved the Circle and Rectangle transitions slightly.
-Improved the Scrolling transitions slightly.
-Implemented the Level 1-3 Shields (Figther's, Fireproof, and Mirror).
-Added more maps.
-Implemented Cliff Jumping.
-Implemented the Level 1 Rocs Item (Feather).
-Implemented Fairies.
-Slowed the movement of pushblocks.
-Rewrote Link's movement engine to function as a velocity system.
-Implemented Rolling, using double key tapping for Link.
-Updating prepackaged graphics as practice in that section, as well as giving the engine a better graphical appeal.
-Implemented "big rooms" where the camera has freedom to move around until the "edge" is reached. Works for any size room, however, it is recommended to have all "connected" rooms the same size, for scrolling transitions to work smoothly.
As well as a couple of teaser shots. In these shots though, a lot of graphics are still being updated, as you probably guessed.