61 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	8361756dc4	Switched definitively to the works-for-now approach of requiring an explicit opt-in where somebody wants to clock a whole-cycle receiver from a half-cycle clock.	2017-07-27 07:40:02 -04:00
Thomas Harte	d9c6b3bcf7	Corrected TIA's WSYNC lookahead to accept Cycles.	2017-07-25 22:13:41 -04:00
Thomas Harte	75d67ee770	Relocated ClockReceiver.hpp as it's a dependency for parts of the static analyser, and therefore needs to be distinct from the actual emulation parts.	2017-07-25 20:20:55 -04:00
Thomas Harte	a1e9a54765	Eliminated redundant uses of ClockReceiver and sought to ensure that proper run_fors are inherited all the way down.	2017-07-25 20:09:13 -04:00
Thomas Harte	13f7aa4063	The TIA is now a ClockReceiver.	2017-07-24 21:48:34 -04:00
Thomas Harte	37459a3ebc	Fixed parameter shadowing.	2017-07-21 21:51:18 -04:00
Thomas Harte	dfc468f220	Locked down all initial state.	2017-03-26 15:47:04 -04:00
Thomas Harte	3229502fa1	Standardised curly bracket placement across the Atari.	2017-03-23 21:59:16 -04:00
Thomas Harte	79784a8e57	Followed tip: missiles are locked to the position after four output pixels, not four input pixels.	2017-03-04 22:23:50 -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	e61e355251	Moved to the maximum possibly required queue length of 4. Though the emulated 2600 should never need more than 2 slots as per the current calling pattern, it's not a contractual guarantee.	2017-02-25 17:25:10 -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	6120dae61a	While I'm using the hacky approach to player/missile synchronisation, I need to seed adder.	2017-02-22 07:39:11 -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	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	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	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	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	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
Thomas Harte	64d5712d1d	Added an incorrectly-coded version of horizontal move, at least so that I can verify that information is going into the correct slots.	2017-02-10 07:23:43 -05:00
Thomas Harte	3b20d862f0	Made an initial attempt to mark sprite positions. But without hmove implemented, they're all over the place.	2017-02-09 20:53:42 -05:00
Thomas Harte	2e9ef2b0ef	Took a shot at reinstating the horizontal blank extend flag.	2017-02-09 18:37:19 -05:00
Thomas Harte	70745286a5	Ensured this array is properly aligned for the uin32_t accesses I intend to make for background drawing.	2017-02-08 20:25:23 -05:00
Thomas Harte	a477499724	Got a bit more explicit with range returned by get_cycles_until_horizontal_blank and hence attempted a more thorough (/correct) version of WSYNC.	2017-02-07 22:14:45 -05:00
Thomas Harte	8f5039130c	Changed index naming order to ensure no out-of-bounds accesses.	2017-02-06 21:48:41 -05:00
Thomas Harte	474e2e8d2c	Fixed once again to respect mid-line palette changes.	2017-02-06 20:09:12 -05:00
Thomas Harte	66bcdd36f3	Made an attempt to introduce an intermediate buffer that ends up with a bit mask of all graphical components present on it, and to use that to infer collision flags and colours, based on playfield priority and colour palette. Immediately yielding: a blank screen. Good work!	2017-02-06 18:29:00 -05:00
Thomas Harte	6bcf95042c	Started trying to be a bit more explicit about usage, and to divide up drawing responsibility.	2017-02-05 17:51:56 -05:00