75 Commits

Author	SHA1	Message	Date
Thomas Harte	4abd62e62b	Standardises on const [Half]Cycles as the thing called and returned, rather than const [Half]Cycles & as it's explicitly defined to be only one int in size, so using a reference is overly weighty.	2017-07-27 22:05:29 -04:00
Thomas Harte	d9c6b3bcf7	Corrected TIA's WSYNC lookahead to accept Cycles.	2017-07-25 22:13:41 -04:00
Thomas Harte	13f7aa4063	The TIA is now a ClockReceiver.	2017-07-24 21:48:34 -04:00
Thomas Harte	2ee8a7056e	Corrected TIA no longer to assume phase is an automatic quarter askew.	2017-05-16 20:43:28 -04:00
Thomas Harte	814c0ada13	Fixed action counts for border motion.	2017-03-26 18:33:05 -04:00
Thomas Harte	3229502fa1	Standardised curly bracket placement across the Atari.	2017-03-23 21:59:16 -04:00
Thomas Harte	afbd9fd41b	Fixed declared line length.	2017-03-14 21:33:38 -04:00
Thomas Harte	4751615623	Fixed NTSC colour cycle count, and hence the 2600's reported line lengths and phase offset.	2017-03-04 17:31:39 -05:00
Thomas Harte	06dd98b23c	Pulled the reset time for horizontal blank extend up to position 224.	2017-02-28 20:28:54 -05:00
Thomas Harte	e6a84fd26b	Attempted a hardware-correct implementation of missile-to-player latching. This completes the last of the **knowing** inaccuracies. The rest are as-of-yet unwitting.	2017-02-26 15:12:31 -05:00
Thomas Harte	440467ea3e	Started communicating which copy is being requested.	2017-02-26 13:39:25 -05:00
Thomas Harte	c898c8a99e	Ensured the missiles and ball don't attempt to enqueue. Because I don't think they're supposed to.	2017-02-25 17:13:22 -05:00
Thomas Harte	8c9062857c	Added a single-slot queue for player objects to defer drawing, thereby deferring pixel lookup. Which I think is correct. Though more slots might be needed.	2017-02-25 17:10:24 -05:00
Thomas Harte	82f392fada	This should be the other way around. I want whichever is later.	2017-02-22 21:54:49 -05:00
Thomas Harte	4f5f191cd6	Fixed: will no longer attempt to output pixels from before the pixel part of a line on which sync was disabled abruptly.	2017-02-22 07:33:36 -05:00
Thomas Harte	21abf4e9fc	Enshrined a terminology switch, albeit without any flow change behind it.	2017-02-22 07:29:48 -05:00
Thomas Harte	144d6b70d9	Minor cleaning.	2017-02-22 07:14:30 -05:00
Thomas Harte	b769f22ca0	Switched back to the collision_buffer_ being part of the TIA object, added one more assert.	2017-02-21 22:26:20 -05:00
Thomas Harte	7019d396d0	Threw in some asserts, discovering a bug in missile positioning.	2017-02-21 22:04:27 -05:00
Thomas Harte	f4447fd9cd	Attempted to fix failure of sprites properly to wrap when performing motion.	2017-02-21 21:53:09 -05:00
Thomas Harte	36396b3d62	Made a slightly better, albeit still inaccurate, version of missile-player lock.Enough for Combat to do reasonable things.	2017-02-21 20:45:20 -05:00
Thomas Harte	d1dbf8c21f	Missile to player lock is supposed to be a toggle; also factored out the commonalities of missile and ball drawing.	2017-02-21 07:58:37 -05:00
Thomas Harte	1bde0fed6f	Simplified relationship between Objects and the usage-specific components through inheritance.	2017-02-21 07:37:20 -05:00
Thomas Harte	7ab2358bba	Made an attempt to reintroduce missiles.	2017-02-20 22:22:39 -05:00
Thomas Harte	99547181f1	Attempted to template this thing. Without yet a plan in place for pixel lookup timing.	2017-02-20 21:42:59 -05:00
Thomas Harte	2bf784535c	Simplified calllng.	2017-02-20 18:04:40 -05:00
Thomas Harte	57f434c199	Reorganised state, with an eye towards unifying object motion and triggers.	2017-02-20 17:58:28 -05:00
Thomas Harte	99a35266e1	Attempted to bring frequency-switching logic into the cross-platform realm. Which for now creates an issue with the OpenGL context.	2017-02-19 21:20:37 -05:00
Thomas Harte	51bcaea60c	Disabled incorrect 'optimisations'.	2017-02-19 12:00:04 -05:00
Thomas Harte	e00339ef0a	Attempted to reintroduce the ball.	2017-02-19 08:02:54 -05:00
Thomas Harte	53cd125712	Added stub calls to draw the missiles and ball.	2017-02-19 07:28:24 -05:00
Thomas Harte	04693b067c	Fixed failure of the optimised route to pump the pixel clock; removed optimisation entirely for now.	2017-02-18 21:36:48 -05:00
Thomas Harte	cd7876a746	Reintroduced the extra clocking delay.	2017-02-18 20:18:50 -05:00
Thomas Harte	ed5ff49ef5	Fixed vertical delay, retreated from my previous thought about adding the one extra cycle of sprite delay, at least temporarily.	2017-02-16 20:52:01 -05:00
Thomas Harte	8d502a0b03	Decided not to run before I can walk and switched to storing the motion time and next step explicitly per object.	2017-02-16 20:28:37 -05:00
Thomas Harte	5ea232310f	Added a check against negative runs.	2017-02-16 18:55:58 -05:00
Thomas Harte	09309aa74f	Attempted to prevent extraneous moves.	2017-02-16 18:52:39 -05:00
Thomas Harte	b5357860b9	Made an attempt to split things apart so as to be able to introduce the proper sprite latency.	2017-02-14 20:56:16 -05:00
Thomas Harte	cd90118a0f	Added two, extraordinarily simple tests.	2017-02-12 20:32:53 -05:00
Thomas Harte	25776de59d	I think unit testing this thing is the only way forwards. Started adding appropriate hooks.	2017-02-12 19:55:02 -05:00
Thomas Harte	0c9be2b09e	Shunted the collisions buffer onto a separate area of the heap for the time being, as a debugging aid. Also added a few more initial values.	2017-02-12 18:16:50 -05:00
Thomas Harte	df8a5cbe6d	Made attempts (i) to respect the delay flag; and (ii) to account for border-region sprite clocking.	2017-02-12 17:35:09 -05:00
Thomas Harte	9ce68c38ae	Made an effort to implement proper pixel output for sprites.	2017-02-12 14:01:50 -05:00
Thomas Harte	40954d6a2a	Attempted to factor out parts I expect to reuse for missiles and the ball.	2017-02-12 11:31:17 -05:00
Thomas Harte	ac444a3f34	Corrected both position increments and target time calculation.	2017-02-11 21:24:14 -05:00
Thomas Harte	b8abeced6d	Made an attempt to introduce the proper eventful loop for player output. With debugging yet to occur.	2017-02-11 21:01:58 -05:00
Thomas Harte	aeff59addc	Implemented motion 'correctly', for programs written to do all work outside of the pixel area.	2017-02-11 20:25:49 -05:00
Thomas Harte	6381e4e1b0	All that's happened to position is that numbers have been added to it. So it can't be negative, given that it wasn't before. So a regular modulo will do.	2017-02-11 13:34:36 -05:00
Thomas Harte	905ed1f87b	Switched to the more natural type, which is also signed, making my logic less prone to error.	2017-02-11 13:16:53 -05:00
Thomas Harte	8de6caf6ff	Started trying to get into a proper structure here. Chickened out.	2017-02-11 12:59:13 -05:00