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tehtriz joystick input
This commit is contained in:
Irmen de Jong
parent
52ff61470b
commit
f2b03342ac
@ -105,8 +105,8 @@
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; ---- CIA 6526 1 & 2 registers ----
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memory ubyte CIA1PRA = $DC00 ; CIA 1 DRA, keyboard column drive
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memory ubyte CIA1PRB = $DC01 ; CIA 1 DRB, keyboard row port
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memory ubyte CIA1PRA = $DC00 ; CIA 1 DRA, keyboard column drive (and joystick control port #2)
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memory ubyte CIA1PRB = $DC01 ; CIA 1 DRB, keyboard row port (and joystick control port #1)
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memory ubyte CIA1DDRA = $DC02 ; CIA 1 DDRA, keyboard column
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memory ubyte CIA1DDRB = $DC03 ; CIA 1 DDRB, keyboard row
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memory ubyte CIA1TAL = $DC04 ; CIA 1 timer A low byte
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@ -2,6 +2,7 @@
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; TehTriz - a Tetris clone.
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;
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; @todo: slow down joystick input
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; @todo: holding a block
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; @todo: show next 2 blocks instead of just 1
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; @todo: deal with rotation when block is against a wall or another block (wall kicks) (if no rotate in place possible: move 1 left, try rotate, else move 1 right, try rotate, else no rotation possible)
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@ -17,17 +18,26 @@
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const ubyte startXpos = boardOffsetX + 3
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const ubyte startYpos = boardOffsetY - 2
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ubyte lines = 0
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uword score = 0
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ubyte xpos = startXpos
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ubyte ypos = startYpos
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ubyte nextBlock = rnd() % 7
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ubyte lines
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uword score
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ubyte xpos
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ubyte ypos
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ubyte nextBlock
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sub start() {
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@(650) = 128 ; set all keys to repeat
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newGame()
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drawBoard()
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gameOver() ; @todo fix game corruption because loop is called multiple times (???)
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newgame:
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newGame()
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drawBoard()
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spawnNextBlock()
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ubyte joystick_delay=1
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waitkey:
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if c64.TIME_LO==30 {
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c64.TIME_LO = 0
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@ -42,26 +52,24 @@ waitkey:
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; block can't move further down!
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; check if the game area is full, if not, spawn the next block at the top.
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if blocklogic.isGameOver(xpos, ypos) {
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game_over()
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gameOver()
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goto newgame
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} else {
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spawnNextBlock()
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}
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}
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}
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ubyte key=c64.GETIN() ; @todo: joystick support as well. (doesn't joy1 input characters as well?)
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if_z goto waitkey
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ubyte key=c64.GETIN()
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ubyte joystick1 = c64.CIA1PRB
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if key==0 and joystick1==255 goto waitkey
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if key>='1' and key<='7' {
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; select block type, reset to start pos
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; @todo remove this feature it is for testing purposes only
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xpos = startXpos
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ypos = startYpos
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drawBlock(xpos, ypos, 32)
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blocklogic.newCurrentBlock(key-'1')
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drawBlock(xpos, ypos, 160)
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if joystick1!=255 {
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joystick_delay--
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if_nz goto waitkey
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}
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else if key==157 or key==',' {
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if key==157 or key==',' or not (joystick1 & 4) {
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; move left
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if blocklogic.canMoveLeft(xpos, ypos) {
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drawBlock(xpos, ypos, 32)
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@ -69,7 +77,7 @@ waitkey:
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drawBlock(xpos, ypos, 160)
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}
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}
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else if key==29 or key=='.' {
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else if key==29 or key=='.' or not (joystick1 & 8) {
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; move right
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if blocklogic.canMoveRight(xpos, ypos) {
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drawBlock(xpos, ypos, 32)
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@ -77,7 +85,7 @@ waitkey:
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drawBlock(xpos, ypos, 160)
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}
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}
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else if key==17 or key=='m' {
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else if key==17 or key=='m' or not (joystick1 & 2) {
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; move down faster
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if blocklogic.canMoveDown(xpos, ypos) {
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drawBlock(xpos, ypos, 32)
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@ -85,13 +93,13 @@ waitkey:
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drawBlock(xpos, ypos, 160)
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}
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}
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else if key==145 or key==' ' {
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else if key==145 or key==' ' or not (joystick1 & 1) {
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; drop down immediately
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drawBlock(xpos, ypos, 32)
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ypos = boardOffsetY+boardHeight-4 ; @todo determine proper y position
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drawBlock(xpos, ypos, 160)
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}
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else if key=='z' {
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else if key=='z' { ; no joystick equivalent (there is only 1 fire button)
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; rotate counter clockwise
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if blocklogic.canRotateCCW(xpos, ypos) {
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drawBlock(xpos, ypos, 32)
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@ -99,7 +107,7 @@ waitkey:
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drawBlock(xpos, ypos, 160)
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}
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}
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else if key=='x' {
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else if key=='x' or not (joystick1 & 16) {
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; rotate clockwise
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if blocklogic.canRotateCW(xpos, ypos) {
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drawBlock(xpos, ypos, 32)
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@ -107,6 +115,7 @@ waitkey:
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drawBlock(xpos, ypos, 160)
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}
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}
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joystick_delay = 140 ; this more or less slows down the joystick movements to the rate of what key repeats do
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; @todo check if line(s) are full -> flash/clear line(s) + add score + move rest down
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@ -114,7 +123,8 @@ waitkey:
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}
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sub game_over() {
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sub gameOver() {
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c64scr.PLOT(7, 7)
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c64.CHROUT('U')
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c64scr.print("────────────────────────")
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@ -125,12 +135,32 @@ waitkey:
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c64.CHROUT('J')
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c64scr.print("────────────────────────")
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c64.CHROUT('K')
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while(true) {
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; endless loop
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; @todo restart game on pressing F1/firebutton
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c64scr.PLOT(7, 18)
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c64.CHROUT('U')
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c64scr.print("────────────────────────")
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c64.CHROUT('I')
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c64scr.PLOT(7, 19)
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c64scr.print("│ f1 for new game │")
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c64scr.PLOT(7, 20)
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c64.CHROUT('J')
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c64scr.print("────────────────────────")
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c64.CHROUT('K')
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while(c64.GETIN()!=133) {
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; endless loop until user presses F1 to restart the game
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}
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}
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sub newGame() {
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lines = 0
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score = 0
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xpos = startXpos
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ypos = startYpos
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nextBlock = rnd() % 7
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c64.CLEARSCR()
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}
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sub spawnNextBlock() {
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c64.TIME_LO = 0
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blocklogic.newCurrentBlock(nextBlock)
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@ -155,17 +185,19 @@ waitkey:
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c64scr.PLOT(28,14)
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c64scr.print("score:")
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c64.COLOR = 12
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c64scr.PLOT(28,19)
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c64scr.PLOT(28,18)
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c64scr.print("controls:")
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c64.COLOR = 11
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c64scr.PLOT(27,20)
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c64scr.PLOT(27,19)
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c64scr.print("z/x rotate")
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c64scr.PLOT(27,21)
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c64scr.PLOT(27,20)
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c64scr.print(",/. move")
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c64scr.PLOT(27,22)
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c64scr.PLOT(27,21)
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c64scr.print("spc drop")
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c64scr.PLOT(27,23)
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c64scr.PLOT(27,22)
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c64scr.print(" m descend")
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c64scr.PLOT(27,23)
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c64scr.print("or joystick1")
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c64scr.setcc(boardOffsetX-1, boardOffsetY-2, 255, 0) ; invisible barrier
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c64scr.setcc(boardOffsetX-1, boardOffsetY-3, 255, 0) ; invisible barrier
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@ -5,37 +5,15 @@
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; @todo see problem in looplabelproblem.p8
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; @todo when a for loop is executed multiple times, is the loop var correct? (via goto start)
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sub start() {
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uword w = 12345
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ubyte flags
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waitjoy:
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ubyte key=c64.GETIN()
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if_z goto waitjoy
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c64scr.print_ub(key)
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c64.CHROUT('\n')
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clear_irqd()
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c64utils.uword2bcd(w)
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flags=read_flags()
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c64scr.print_ubbin(1,flags)
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c64.CHROUT('\n')
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set_irqd()
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c64utils.uword2bcd(w)
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flags=read_flags()
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c64scr.print_ubbin(1,flags)
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c64.CHROUT('\n')
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clear_irqd()
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c64utils.uword2bcd(w)
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flags=read_flags()
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c64scr.print_ubbin(1,flags)
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c64.CHROUT('\n')
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set_irqd()
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c64utils.uword2bcd(w)
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flags=read_flags()
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c64scr.print_ubbin(1,flags)
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c64.CHROUT('\n')
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goto waitjoy
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}
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}
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