youdirk / c64-non-sense Goto Github PK

• Make: command x64 to optional dependency
• rename irq to irq_isr on some places, namespacing
• Double Buffering, check error fractals
• implement a Timer module using Interrupts
• Add a debugging option to show the render_isr time
• Try out to use C preprocessor #define in assembler code to share header files between .c and .S files
• Feature Request to cc65 for
  • -Dname option should pass by default to assembler, without -Wa option from cl65
  • C Preprocessor support for assembler ca65

• Sprite module should be a 'Structure' constructed with Sprite_new() and ticking with Sprite_tick()
• Global sprite settings goes into a new Graphix_buffer_sprites_t, such like sprite enable bits at 0xd015
• Think about where to place the sprite buffers, think about replacing VICBANK (VIC-II DMA access), 0xc000 currently.
• Graphix_rasterline_isr() must be adapted for sprite animations
• Implementing a $> c64nonsense-cook -t sprite-gif my-character.gif -t music-goattracker music.sng -t level-png the-bigcastle.png assets.rel
• AssetLoader module which is able to load assets from assets.rel
• Adapting repository directory structure: assets-game/ makeinc/ src/ src-cook/ src-game/ trunk/
  • src-cook/ shall be compileable without to have cc65 installed
  • src/ make target is a src/c64nonsense.lib
  • src-game/ builds das-produkt.prg which is static linked to the src/c64nonsense.lib, which hopefully reduces prg file size (linker optimization)
  • assets-game/ runs the cooking process ../src-cook/c64nonsense-cook -t [...] das-produkt.rel
  • dependencies: src-cook/: gcc, src/: cc65, assets-game/: src-cook/c64nonsense-cook, src-game/: src/c64nonsense.lib assets-game/das-produkt.rel
• Think about a concept for sprite multiplexing ...

• Make it possible to disable sprite animations in EngineConfig
• Add constants, such like PACE_PIXEL_PER_TICK for velocity_max, etc in Pace.h
• Input.def.h: check if Input.joy_port1.axis_x.direction == 0 is just required when INPUT.SET.ENABLED = Input_joystick_port1_mask
• Pace: uint6_t accel_rate in Pace_new()
• Make calibration for NTSC in Timer.h using 60 Hz tick rate
• Adapt Stream-Playlist in .github/...
• Add something like SpriteAnimation_new_mirrored() in x and y axis...
• AAAssets.c: Merge #defines for multicolor into master

If you get trouble during calling the _Debug_{error,warn,note} output functions in ISRs then it is required to backup the virtual zero-page registers of the CC65 runtime. Currently not implemented, because it´s just debugging stuff, it exist currently just one call from Timer_a_isr() which seems to work for now and the big overhead in run-time is unjustifyable for now. An example implemetation you can find in the CC65 sources

• CC65/libsrc/dbg/dbgsupp.s: .DbgBreak, .DbgSwapZP, .CTemp

Another better solution is to implement an assembler version of _Debug_{error,warn,note}

• Spelling in comment Graphix.set.charset_exit
• void missing comment how to use Input.keyboard.petscii.character
• Bug: Double pressed key, if on SHIFT+character-key SHIFT will be released first
• Test if initially set FALSE Input.keyboard.petscii.changed
• Add macros register_uint8(addr_hex, name), register_vector(addr_hex, name, type) to define.h
• Renaming subtitle of C64 NonSense to something like "The C64 NonSense Game Engine."
• Change Year of copyright consistent to "2020 - 2021" in all files
• Prepare a Sprite-Module