Indie Retro News: OpenTTD - Open Source Transport Tycoon Deluxe gets a big PC update, as well as Amiga port! [UPDATE]

Not solely are you able to obtain the most recent open supply PC construct for Transport Tycoon Deluxe ‘ as ‘OpenTTD 16.0-beta1’, however when you have an Amiga you can even play the port of OpenTTD v1.0.5 for OCS/AGA/RTG by Grzegorz Korycki and Claude AI. Transport Tycoon Deluxe by Chris Sawyer was one of many highlights on the PC within the mid 90’s. Whereas the PC model makes the sport so significantly better working your very personal transport firm, resembling larger maps, steady multiplayer mode for as much as 255 gamers in 15 corporations and far way more. The Amiga model is a local port with its personal video driver written towards Instinct and graphics.library. No SDL, and no RTG card required!

OCS/ECS

AGA/RTG

The Amiga port optimizes efficiency for traditional OCS/ECS techniques, such because the A500/A600, by using low-resolution Additional Half-Brite mode (64 colours through a sixth bitplane) to save lots of Chip RAM and scale back CPU overhead. Whereas switching between AGA, OCS, and RTG requires a restart, the port encompasses a native, scratch-built C++ AI to handle increasing cargo and passenger networks. Map technology, save/load, the menus and situation editor, constructing rail, highway, stations and depots, working autos and giving them orders. Full mouse (together with right-drag scrolling), keyboard and arrow-key map scrolling. Audio is optimized for Paula, with results utilizing direct {hardware} channels and the soundtrack streamed straight as ADPCM WAV, permitting the CPU to deal with zero processing as soon as a sound begins.

Thanks Craig for the Video

Necessities

68020 minimal to begin, no FPU wanted — however beginning and enjoying will not be the identical factor. For a sport that truly performs, count on a 68030/50 with an RTG board or a 68040 with AGA; 68060 for full velocity. Examined on a naked 020, an 030 with no coprocessor, and an 040. (The FPU requirement was eliminated in 0.7.0 — the trigger was printf pulling FPU code into libnix’s prologue, not the maths; constructing with -mcpu=68020 -msoft-float fixes it. Solely map technology makes use of floating level.)
AGA, or OCS/ECS, or a Picasso96 / CyberGraphX RTG card. RTG is value having when you personal one: the chunky 8bpp buffer goes to an 8bpp RTG display basically unchanged, skipping chunky-to-planar fully.
24 MB Quick RAM (will not begin on 4 MB Quick + 16 MB Z3; does on 8 + 16). AmigaOS 3.0/3.1, ~30 MB free disk.
Nothing from the unique Transport Tycoon Deluxe is required — the archive bundles OpenGFX and OpenSFX and runs as unpacked.

Why 1.0.5

The final comfy base for this goal: C++03 (buildable with bebbo’s m68k-amigaos GCC 6.5, the place later OpenTTD wants C++11/17/20), an 8bpp blitter by default (a chunky palette buffer, precisely what a chunky-to-planar converter needs), all exterior libraries optionally available, and the primary launch that’s legally redistributable through OpenGFX/OpenSFX. 1.0.5 nonetheless carries OpenTTD’s personal Amiga/MorphOS scaffolding (eliminated upstream in 2019); what by no means existed upstream, and what this repo provides, is an actual Amiga video/sound driver and the native AI.

[UPDATE] A brand new construct has been launched which not solely improves the loading of the sport, however added assist for MIDI through CAMD library, and mouse wheel assist. This may be discovered through the Amiga hyperlink beneath and below releases.