Colin McMillen
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12a51ea9ec
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Don't reset background color on each game.
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2015-06-07 13:29:21 -04:00 |
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Colin McMillen
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bc0049edaf
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Add "Game Over" screen & restart game afterwards.
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2015-06-07 13:23:07 -04:00 |
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Colin McMillen
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448fcfdde3
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Refactor score rendering into reusable functions.
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2015-06-07 11:34:03 -04:00 |
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Colin McMillen
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bb674fced2
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Create macro for advancing sprite array pointers.
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2015-06-07 10:36:56 -04:00 |
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Colin McMillen
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52ac6e0cbe
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Display 4-digit player score.
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2015-06-07 10:08:22 -04:00 |
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Colin McMillen
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16d948d061
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Tweak "7" character in font.
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2015-06-07 09:41:46 -04:00 |
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Colin McMillen
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bf92ca0be9
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Add a font for digits and a fake player score.
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2015-06-07 09:39:23 -04:00 |
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Colin McMillen
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7eeeca9487
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Add only one point per enemy killed.
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2015-06-07 08:57:05 -04:00 |
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Colin McMillen
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ac5dcc504a
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Check collisions between player shots & enemies.
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2015-06-07 08:55:45 -04:00 |
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Colin McMillen
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c5c3297237
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Pull out a separate CheckCollision function.
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2015-06-07 08:04:37 -04:00 |
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Colin McMillen
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4ca3bec032
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Small code cleanups.
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2015-06-07 07:28:43 -04:00 |
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Colin McMillen
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a387160fdd
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Make an explicit cooldown for spawning the next ship.
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2015-06-06 18:14:20 -04:00 |
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Colin McMillen
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c17b137ab2
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Remove username from TODOs
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2015-06-06 18:05:57 -04:00 |
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Colin McMillen
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08fae310e8
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Add shots that come from enemy ships.
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2015-06-06 12:52:25 -04:00 |
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Colin McMillen
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1a37dfe08b
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Add screenshot to README.md
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2015-06-06 11:30:31 -04:00 |
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Colin McMillen
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aec5466f74
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Update README.md
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2015-06-06 10:25:47 -04:00 |
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Colin McMillen
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d7f0119cb6
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Tweak ship / shot spawn rates.
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2015-06-06 10:05:46 -04:00 |
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Colin McMillen
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d460a519af
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Add enemy ships.
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2015-06-06 08:38:37 -04:00 |
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Colin McMillen
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1c7b6fde81
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Tweak to collision-detection.
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2015-06-01 23:11:50 -04:00 |
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Colin McMillen
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ca8926f567
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Add display of player health.
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2015-06-01 23:05:37 -04:00 |
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Colin McMillen
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b238fa2d37
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Collision detection between player and enemy shots.
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2015-06-01 21:23:53 -04:00 |
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Colin McMillen
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f5b67dd535
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Change shots to be single-shot and 8x8 sprite size.
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2015-06-01 19:42:19 -04:00 |
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Colin McMillen
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a92499fc40
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Fix a bug - *now* we don't need InitSpriteTables.
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2015-06-01 00:35:25 -04:00 |
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Colin McMillen
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abddbf0033
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Turns out we did still need InitSpriteTables.
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2015-06-01 00:28:43 -04:00 |
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Colin McMillen
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2bb1bc161d
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Add multiple enemy shots.
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2015-06-01 00:18:03 -04:00 |
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Colin McMillen
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4bf0033962
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Make enemy sprites red.
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2015-05-31 18:08:52 -04:00 |
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Colin McMillen
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526bc9e320
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Spawn enemy shots from right edge of screen.
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2015-05-31 18:03:46 -04:00 |
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Colin McMillen
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d81c9a9e4b
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Refactor jmp -> bra.
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2015-05-31 17:40:22 -04:00 |
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Colin McMillen
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29d4ff2309
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Update README.md
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2015-05-31 17:33:45 -04:00 |
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Colin McMillen
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398d62d22d
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Update README.md
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2015-05-31 17:33:32 -04:00 |
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Colin McMillen
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12d4c9c5f4
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Update README.md
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2015-05-31 17:24:04 -04:00 |
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Colin McMillen
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f51a544956
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Various refactorings.
Rename InitializeFoo -> InitFoo.
Break UpdateWorld into a few functions.
shotArray -> playerShotArray.
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2015-05-31 17:20:13 -04:00 |
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Colin McMillen
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98aedecd4c
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Create array for enemy shots.
Move "memory layout" comments and definitions into memory.asm.
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2015-05-31 17:07:01 -04:00 |
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Colin McMillen
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4521c5d96b
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Remove InitializeSpriteTables routine.
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2015-05-31 16:49:22 -04:00 |
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Colin McMillen
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0fa70c0889
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Make a table of possible shot velocities.
Also fix bug caused by omission of "clc" before "adc".
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2015-05-31 16:30:17 -04:00 |
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Colin McMillen
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eb7757a8b3
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Change shot sprite to be up against left edge.
Also fix a bug where some entries of the sprite buffer weren't being
cleared.
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2015-05-31 15:05:37 -04:00 |
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Colin McMillen
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6eab6050e8
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Allow for negative x-velocity.
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2015-05-31 14:31:13 -04:00 |
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Colin McMillen
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54d2828bf6
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Shinier star graphic.
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2015-05-31 13:35:06 -04:00 |
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Colin McMillen
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b802431925
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Change output file extension .smc -> .sfc
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2015-05-31 12:32:36 -04:00 |
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Colin McMillen
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1dc44a3f00
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Move sprite table RAM location.
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2015-05-31 12:27:30 -04:00 |
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Colin McMillen
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bac214a95b
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Fix subtraction / two's complement bug.
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2015-05-31 11:36:14 -04:00 |
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Colin McMillen
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e39f802bd5
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Loop through shots array to find an empty spot.
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2015-05-31 11:31:18 -04:00 |
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Colin McMillen
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7d0140d233
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Alternate up-shots and down-shots.
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2015-05-31 11:05:04 -04:00 |
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Colin McMillen
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5ace3844dc
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Shots can now have negative y-velocity.
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2015-05-31 10:45:29 -04:00 |
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Colin McMillen
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611b4d20f2
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Update world & sprites in separate loops.
Also give shots a y-velocity.
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2015-05-30 22:43:27 -04:00 |
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Colin McMillen
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25a2fb20ab
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Change bit-format of scratch sprite table.
Now each sprite's bits count as: "1 = large" and "1 = enabled", which is
more intuitive.
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2015-05-30 12:02:25 -04:00 |
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Colin McMillen
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48db4aca58
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Don't bother storing zeroes to joypad registers.
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2015-05-30 11:32:35 -04:00 |
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Colin McMillen
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116d591c60
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Update shot speed and cooldown timer.
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2015-05-30 11:08:26 -04:00 |
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Colin McMillen
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510aca6ed3
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More register documentation.
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2015-05-30 11:04:22 -04:00 |
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Colin McMillen
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49abebc211
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Allow more than 4 shots.
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2015-05-30 10:53:31 -04:00 |
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