A Yankee in Iraq

[abelenki]

новая (старая) игра от Ast_A_Moore - A Yankee in Iraq.

топик на WoS (http://www.worldofspectrum.org/forums/discussion/53207/new-game-2016-revival-a-yankee-in-iraq-1992)

[abelenki]

новая версия игры, переписанная в ассемблере.

топик на WoS (https://www.worldofspectrum.org/forums/discussion/54152/new-game-a-yankee-in-iraq-2017-a-shoot-em-up)

[abelenki]

новая версия игры.


Added:
—Dropping bombs from higher up scores more points. (Granting @hikoki his wish.)
—Prop blade “rotation” (well, shimmer, actually) added. Doesn’t look too great under most emulators (when they sync the Speccy’s video to the display’s vertical refresh rate; i.e. 50 Hz vs 60 Hz). Works okay-ish in Retro Virtual Machine, as it offers “interlaced blending.” I’d love to hear some feedback on what it looks like on real hardware.

Improvements:
—Airplane graphics are all pre-shifted now. The routines execute much faster and the plane flying right to left no longer flickers when the copter is moving at the same time.

Fixes:
—A couple of instances of a “runaway stack” (CALLS without RETs) have been eliminated
—Fixed an extremely intermittent bug that sometimes affected the base sprite as it moved off the left edge of the screen.
—Fixed memory corruption caused by the IM 2 mode (the F register wasn’t being saved).

[abelenki]

новая версия игры.


Fixes:
—Fixed a rare instance when a player could land on a base even after being hit if the landing took place during the explosion animation.

[abelenki]

новая версия игры.



Added:
—Stage number slates
—Boss hit indicator

Fixes:
—If a plane was shot near the right edge of the screen, the explosion could partially “spill over” to the left edge.

[abelenki]

новая версия игры.


Improvements:
—New bomb and missile sprites, which are all pre-shifted now.
—Bomb and missile collision detection is much more precise.

Added:
—Copter inertia is now applied to bombs. You need to be more accurate than ever when dropping them.

[abelenki]

новая версия игры.


Improvements:
—New game over (win/loss) screens.
—Copter rotor blades rotation speed adjusted to work on emulators and real hardware.
—Recompiled the title music to fix a single false note (thanks to @NaLex for patching Beepola)

[abelenki]

версия 1.0.2.


Improvements:
—Lots of optimizations
—Now uses the floating bus for synchronization. The first Spectrum game to use this method on +2A/+3 machines!

[abelenki]

версия 1.0.3.


—Minor optimizations

[abelenki]

версия 1.0.4.

—A whole lot of code optimization
—Smoother and snappier menu animation
—Cool fade in/out effects
—Missiles are slightly more aggressive, just to make things a tad more interesting
—Text reflection in the MISSION FAILED screen is now procedural
—Even smoother missile roll-off when it reaches the top of the screen
—Happy little trees (maybe)

[Black Cat / Era CG]

Уже 1.0.5 вышла
—Code optimization
—Missiles are even more wicked now
—Copter rotor blades are spread wide before the fade out when you beat the game
Ссылка на страничку игры: http://sky.relative-path.com/zx/25_years_in_the_making.html
Ссылка на авторский архив с игрой: http://sky.relative-path.com/zx/files/A%20Yankee%20in%20Iraq%20v1.0.5.zip
To be continued...

[abelenki]

версия 1.1.0.

—New loading screen, featuring a period-accurate Bell AH-1W Super Cobra attack helicopter
—New in-game copter and fighter plane sprites: large, detailed, and prototypically accurate (within reason)
—New title graphic
—New game completion screen, featuring a Southwest Asia Service Medal ribbon
—New (experimental) Turbo Loader. Load the game on real hardware in under 40 seconds!

Improvements:
—Less abrupt life-loss/game-end animations
—New collision detection that favors the player
—Now, in order to win the game, after dropping three bombs on the boss, you must also stay alive for a few seconds
—Attribute clash of the copter sprite reduced by dynamically coloring only the cells occupied by sprite data in each preshifted frame
—Code optimization
—Miscellaneous improvements

Bug fixes:
—Fixed a bug where a failure to land on the last base prevented the end boss from firing missiles

[abelenki]

версия 1.1.1.

Improvements:
—Memory slightly reorganized
—Both turbo and non-turbo loaders are now smaller
—Copter sprite attributes are now only applied to the cells occupied by the sprite in each frame
—Code optimization
—Miscellaneous improvements

Bug fixes:
—Stack relocation is improved to prevent its possible corruption

[abelenki]

версия 1.2.0.

The most notable addition:
—Parallax & perspective shadows! Twice as many sprites plus quite a bit of math, and the game still runs at 50 fps with no flickering!

Other additions and improvements:
—The game now autodetects the Kempston joystick interface and disables it in the menu if not found.
—Stage number slates now appear regardless of whether the player has landed on the base.
—Two new in-game tunes have been added: one before each stage and one before the end-boss fight.
—Added electron beam sync for drawing the gameplay area at the beginning of each stage to avoid screen tearing artifacts.
—The bullet sprite has been slightly changed.
—Code optimization.

Bug fixes:
—A random frame from the plane explosion animation could sometimes remain on the screen.
—A long-standing but extremely rare scoring bug has been addressed.