new scooter sprite

defs.asm

@@ -23,6 +23,8 @@ SPR_YEX  = $d017         ; vertical expand
 SPR_PRIO = $d01b         ; 1 = sprite behind the characters
 SPR_MC   = $d01c         ; multicolor enable
 SPR_XEX  = $d01d         ; horizontal expand
+SPR_MC1  = $d025         ; shared multicolor 1 (bit pair %01)
+SPR_MC2  = $d026         ; shared multicolor 2 (bit pair %11)
 SPR_COL  = $d027         ; sprite 0 color, +1 = sprite 1, ...
 
 
@@ -91,7 +93,7 @@ LANES     = 5
 NRABBITS  = 7            ; rabbit slots, hardware sprites 1-7
 MAX_MISS  = 3
 ROAD_CX   = 184          ; road center in sprite x coordinates
-PLAYER_SY = 200          ; scooter sprite top (feet on raster line 221)
+PLAYER_SY = 179          ; double-sized scooter top (feet stay on line 221)
 T_BIG     = 112          ; rabbit distance where the big frames start
 T_EXP     = 192          ; ... and where the sprite gets double-sized
 REP_HOLD  = 12           ; frames before a held direction auto-repeats

main.asm

@@ -43,7 +43,9 @@ start:
     lda #COL_SKY
     sta BG
 
-    ; sprites: red scooter, white rabbits, hires, in front
+    ; sprites: red scooter, white rabbits, in front; the
+    ; scooter is multicolor (white rider, dark grey chrome),
+    ; the rabbits stay hires silhouettes
     lda #RED
     sta SPR_COL
     ldx #7
@@ -52,9 +54,14 @@ sprcol:
     sta SPR_COL,x
     dex
     bne sprcol
+    lda #%00000001
+    sta SPR_MC
+    lda #WHITE
+    sta SPR_MC1
+    lda #DGREY
+    sta SPR_MC2
     lda #0
     sta SPR_EN
-    sta SPR_MC
     sta SPR_PRIO
     sta SPR_MSBX
     sta SPR_XEX

play.asm

@@ -68,14 +68,14 @@ pi_col:
     lda #RED
     sta SPR_COL
 
-    ; player sprite: scooter, fixed row, rabbits come per frame
+    ; player sprite: scooter, fixed row, double-sized;
+    ; rabbits come per frame
     lda #SPRP_SCOOT
     sta SPRPTR
     lda #PLAYER_SY
     sta SPRPOS+1
     lda #1
     sta SPR_EN
-    lda #0
     sta SPR_XEX
     sta SPR_YEX
 
@@ -183,10 +183,9 @@ pu_nop2:
     sta SPRPOS           ; sprite 0 x
     lda pxhi,x
     sta msb_sh           ; lane 4 sits past x=255
-    lda #0
+    lda #1               ; the scooter rides double-sized
     sta xex_sh
     sta yex_sh
-    lda #1
     sta en_sh
 
     ; -- a hit blinks the scooter for a dozen frames --

sprites.asm

@@ -1,7 +1,8 @@
 ; -----------------------------------------------------------
-; sprites.asm - hires sprite art, black silhouettes in the
+; sprites.asm - sprite art, one !be24 row per sprite line,
-; spirit of the original PNGs; one !be24 row per sprite line
+; 64-byte aligned; the rabbits are hires silhouettes
-; (`.` = transparent, `#` = pixel), 64-byte aligned
+; (`.` = transparent, `#` = pixel), the scooter is multicolor
+; (2-bit pixel pairs, legend at the art)
 ; -----------------------------------------------------------
 
 !align 63, 0
@@ -11,29 +12,35 @@ SPRP_SCOOT = spr_data DIV 64     ; sprite pointer of the scooter
 SPRP_SMALL = SPRP_SCOOT + 1      ; 4 far rabbit frames
 SPRP_BIG   = SPRP_SCOOT + 5      ; 4 near rabbit frames
 
-; ---- rabbit on a scooter, seen from behind ----
+; ---- rabbit on a scooter, seen from behind; multicolor, so
+; each row is 12 double-wide pixels as 2-bit pairs:
+;   .. transparent   .# white fur (SPR_MC1)
+;   #. red scooter + jersey (sprite color)
+;   ## dark grey chrome: bar, fork, wheel (SPR_MC2)
+; layout: ears / head / arms to the bar / hands + jersey /
+; legs / deck / fork / rear wheel ----
 spr_scooter:
-    !be24 %.........##..##.........
+    !be24 %.......#.#.....#.#......
-    !be24 %.........##..##.........
+    !be24 %.......#.#.....#.#......
-    !be24 %.........##..##.........
+    !be24 %.......#.#.....#.#......
-    !be24 %.........##..##.........
+    !be24 %.........#.#.#.#........
+    !be24 %.........#.#.#.#........
+    !be24 %.........#.#.#.#........
+    !be24 %...#.#...#.#.#.#...#.#..
+    !be24 %########################
+    !be24 %.#.#....#.#.#.#......#.#
+    !be24 %........#.#.#.#.........
+    !be24 %........#.#.#.#.........
+    !be24 %........#.#.#.#.........
+    !be24 %.........#.....#........
+    !be24 %.........#.....#........
+    !be24 %.........#.....#........
+    !be24 %..#.#.#.#.#.#.#.#.#.#...
+    !be24 %..#.#.#.#.#.#.#.#.#.#...
+    !be24 %..........####..........
     !be24 %........########........
     !be24 %........########........
     !be24 %........########........
-    !be24 %..........####..........
-    !be24 %....################....
-    !be24 %....##..########..##....
-    !be24 %........########........
-    !be24 %........########........
-    !be24 %.......##########.......
-    !be24 %.......##########.......
-    !be24 %.......##########.......
-    !be24 %.....##############.....
-    !be24 %.....##############.....
-    !be24 %..........####..........
-    !be24 %..........####..........
-    !be24 %..........####..........
-    !be24 %..........####..........
     !byte 0
 
 ; ---- far rabbit, four hop frames: it faces the player, so

tables.asm

@@ -31,10 +31,11 @@ sptab_hi:
     !byte >(i*13)
 }
 
-; scooter sprite x per lane (lane center - 12); lane 4 crosses
+; scooter sprite x per lane (lane center - 24: the scooter is
-; the 8-bit boundary, pxhi is its MSB flag
+; double-sized, 48 wide); lane 4 crosses the 8-bit boundary,
+; pxhi is its MSB flag
 pxlo:
-    !byte 66, 119, 172, 225, 22
+    !byte 54, 107, 160, 213, 10
 pxhi:
     !byte 0, 0, 0, 0, 1