551 lines
11 KiB
Plaintext
551 lines
11 KiB
Plaintext
( darena.usm )
|
|
( an open-ended game of rocks and sand )
|
|
( contributed by and cc0 sejo 12021 )
|
|
|
|
%DEBUG { .Console/byte DEO #0a .Console/char DEO }
|
|
%DEBUG2 { .Console/short DEO2 #0a .Console/char DEO }
|
|
|
|
( parameters )
|
|
%nrocks { #1f }
|
|
%nrocks-1 { #1e }
|
|
%nrocks_mask { #1f }
|
|
%minposx { #0f }
|
|
%minposy { #0f }
|
|
%maxposx { #f1 }
|
|
%maxposy { #f1 }
|
|
%anispeedmask_normal { #03 }
|
|
%anispeedmask_slow { #07 }
|
|
|
|
%c_color_normal { #33 }
|
|
%c_color_flipx { #73 }
|
|
%index_norock { #ff }
|
|
|
|
( output macros )
|
|
%out_screen_x { LDA #00 SWP .Screen/x DEO2 } ( ;addr )
|
|
%out_screen_y { LDA #00 SWP .Screen/y DEO2 } ( ;addr )
|
|
|
|
( helper macros )
|
|
%get_bit_n { SFT #01 AND }
|
|
%get_nibble_h { #04 SFT #0f AND }
|
|
%get_nibble_l { #0f AND }
|
|
|
|
%is_bit_n_set { get_bit_n #01 EQU }
|
|
|
|
%set_animate { #01 ;c_state LDA ORA ;c_state STA }
|
|
%rst_animate { #00 ;c_state STA }
|
|
|
|
( devices )
|
|
|
|
|00 @System [ &vector $2 &wst $1 &rst $1 &pad $4 &r $2 &g $2 &b $2 ]
|
|
|10 @Console [ &pad $8 &char $1 &byte $1 &short $2 &string $2 ]
|
|
|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ]
|
|
|80 @Controller [ &vector $2 &button $1 &key $1 ]
|
|
|
|
( variables )
|
|
|
|
|0000
|
|
|
|
@c_pos [ &x $1 &y $1 ] ( character position )
|
|
@c_speed [ &x $1 &y $1 ] ( character speed )
|
|
@c_color [ $1 ] ( character color )
|
|
@c_sprite [ $2 ] ( character sprite addr )
|
|
@c_state [ $1 ] ( high_nibble: animation pointer, bit0: is_animated )
|
|
|
|
@f_count [ $1 ] ( frame counter )
|
|
@ani_speedmask [ $1 ] ( animation speed mask )
|
|
|
|
@r_speed_x [ $f ]
|
|
@r_speed_y [ $f ]
|
|
|
|
@tog [ &x $1 &y $1 &state $1 ] ( toggle station state )
|
|
|
|
( program )
|
|
|
|
|0100 @reset ( -> )
|
|
#f396 .System/r DEO2
|
|
#e263 .System/g DEO2
|
|
#9030 .System/b DEO2
|
|
|
|
;on_frame .Screen/vector DEO2
|
|
|
|
( init character )
|
|
#50 ;c_pos/x STA
|
|
#10 ;c_pos/y STA
|
|
#00 ;c_speed/x STA
|
|
#00 ;c_speed/y STA
|
|
c_color_normal ;c_color STA
|
|
;s_monitx_stepfront0 ;c_sprite STA2
|
|
rst_animate
|
|
|
|
anispeedmask_normal ;ani_speedmask STA
|
|
|
|
( init toggler )
|
|
#27 ;tog/x STA
|
|
#27 ;tog/y STA
|
|
#00 ;tog/state STA
|
|
|
|
|
|
( init background )
|
|
;init_bg JSR2
|
|
BRK
|
|
|
|
|
|
@on_frame ( -> )
|
|
;f_count LDA #01 ADD DUP ;f_count STA ( increase frame counter )
|
|
;ani_speedmask LDA ( mask with animation speed mask )
|
|
AND #00 EQU ,update_frame JCN ( jump to update if it's time )
|
|
BRK
|
|
|
|
@update_frame
|
|
( check keyboard )
|
|
;check_keys JSR2
|
|
|
|
( animate character sprite )
|
|
;animate_c JSR2
|
|
|
|
( clear sprites )
|
|
;clear JSR2
|
|
|
|
( update character vars )
|
|
;update_c/run JSR2
|
|
|
|
( update rocks + stand )
|
|
;update_r/run JSR2
|
|
|
|
( draw )
|
|
;draw JSR2
|
|
|
|
BRK
|
|
|
|
@clear
|
|
( clear rocks )
|
|
;s_clear .Screen/addr DEO2
|
|
|
|
nrocks #00
|
|
&rocks_loop
|
|
DUP ( get rocks_x[i] )
|
|
;rocks_x ROT #00 SWP ADD2 out_screen_x
|
|
|
|
DUP ( get rocks_y[i] )
|
|
;rocks_y ROT #00 SWP ADD2 out_screen_y
|
|
|
|
#30 .Screen/color DEO
|
|
|
|
#01 ADD
|
|
DUP2
|
|
NEQ ,&rocks_loop JCN
|
|
POP2
|
|
|
|
( clear character )
|
|
;clear_c JSR2
|
|
JMP2r
|
|
|
|
@draw
|
|
( draw toggler )
|
|
|
|
;tog/x out_screen_x
|
|
;tog/x out_screen_y
|
|
;s_stand .Screen/addr DEO2
|
|
#23 .Screen/color DEO
|
|
|
|
( draw rocks )
|
|
;s_bola .Screen/addr DEO2
|
|
|
|
nrocks #00
|
|
|
|
&rocks_loop
|
|
DUP ( get rocks_x[i] )
|
|
;rocks_x ROT #00 SWP ADD2 out_screen_x
|
|
|
|
DUP ( get rocks_y[i] )
|
|
;rocks_y ROT #00 SWP ADD2 out_screen_y
|
|
|
|
( DUP ( get color bitwise ) )
|
|
( ;r_color LDA SWP get_bit_n #31 ADD .Screen/color DEO )
|
|
|
|
DUP
|
|
;r_color ROT #00 SWP ADD2 LDA #31 ADD .Screen/color DEO
|
|
|
|
#01 ADD
|
|
|
|
DUP2
|
|
NEQ ,&rocks_loop JCN
|
|
POP2
|
|
|
|
( draw character )
|
|
;draw_c JSR2
|
|
JMP2r
|
|
|
|
@check_keys
|
|
#00 ;c_speed/x STA
|
|
#00 ;c_speed/y STA
|
|
|
|
.Controller/button DEI #07 is_bit_n_set ,&der JCN
|
|
.Controller/button DEI #06 is_bit_n_set ,&izq JCN
|
|
.Controller/button DEI #05 is_bit_n_set ,&aba JCN
|
|
.Controller/button DEI #04 is_bit_n_set ,&arr JCN
|
|
|
|
rst_animate
|
|
|
|
JMP2r
|
|
|
|
&der
|
|
#01 ;c_speed/x STA
|
|
set_animate
|
|
c_color_normal ;c_color STA
|
|
;s_monitx_stepside0 ;c_sprite STA2
|
|
JMP2r
|
|
|
|
&izq
|
|
#ff ;c_speed/x STA
|
|
set_animate
|
|
c_color_flipx ;c_color STA
|
|
;s_monitx_stepside0 ;c_sprite STA2
|
|
JMP2r
|
|
|
|
&aba
|
|
#01 ;c_speed/y STA
|
|
set_animate
|
|
c_color_normal ;c_color STA
|
|
;s_monitx_stepfront0 ;c_sprite STA2
|
|
JMP2r
|
|
|
|
&arr
|
|
#ff ;c_speed/y STA
|
|
set_animate
|
|
c_color_normal ;c_color STA
|
|
;s_monitx_stepback0 ;c_sprite STA2
|
|
JMP2r
|
|
|
|
&end
|
|
JMP2r
|
|
|
|
( sub-routines )
|
|
|
|
( in: sourcex, source y, index, rangex, rangey )
|
|
( puts in the stack the index of rock collisioned with )
|
|
@collision_rocks
|
|
&range_y $1
|
|
&range_x $1
|
|
&src_i $1
|
|
&src_x $1
|
|
&src_y $1
|
|
|
|
&rock_x $1
|
|
&rock_y $1
|
|
|
|
&run
|
|
,&range_y STR
|
|
,&range_x STR
|
|
,&src_i STR
|
|
,&src_y STR
|
|
,&src_x STR
|
|
|
|
( check collision with rocks )
|
|
( nrocks #00 )
|
|
,&src_i LDR nrocks_mask AND DUP #01 ADD nrocks_mask AND
|
|
|
|
&rocks_loop
|
|
DUP ( get rocks_x[i] )
|
|
;rocks_x ROT #00 SWP ADD2 LDA ,&rock_x STR
|
|
|
|
DUP ( get rocks_y[i] )
|
|
;rocks_y ROT #00 SWP ADD2 LDA ,&rock_y STR
|
|
|
|
,&src_x LDR ,&rock_x LDR ,&range_x LDR SUB GTH ( if sx > rx - 8 )
|
|
,&src_x LDR ,&rock_x LDR ,&range_x LDR ADD LTH ( if sx < rx + 8 )
|
|
,&src_y LDR ,&rock_y LDR ,&range_y LDR SUB GTH ( if sy > ry - 8 )
|
|
,&src_y LDR ,&rock_y LDR ,&range_y LDR ADD LTH ( if sy < ry + 8 )
|
|
ADD ADD ADD #04 EQU ,&found JCN
|
|
|
|
#01 ADD nrocks_mask AND
|
|
DUP2
|
|
NEQ ,&rocks_loop JCN
|
|
POP2
|
|
#ff
|
|
JMP2r
|
|
&found
|
|
SWP POP ( remove loop limit )
|
|
DUP ;&src_i LDA NEQ ,&end JCN ( check if result is the same as index )
|
|
POP #ff
|
|
JMP2r
|
|
|
|
&end
|
|
|
|
JMP2r
|
|
|
|
@update_c ( update character position )
|
|
&new_x $1
|
|
&new_y $1
|
|
|
|
&rock_i $1
|
|
&rock_x $1
|
|
&rock_y $1
|
|
|
|
|
|
&run
|
|
;c_speed/x LDA ;c_pos/x LDA ADD
|
|
,&new_x STR
|
|
;c_speed/y LDA ;c_pos/y LDA ADD
|
|
,&new_y STR
|
|
|
|
anispeedmask_normal ;ani_speedmask STA
|
|
|
|
&check_x
|
|
( check collision with borders )
|
|
,&new_x LDR minposx EQU ;&noup_x JCN2
|
|
,&new_x LDR maxposx EQU ;&noup_x JCN2
|
|
|
|
|
|
( check collision with rocks )
|
|
,&new_x LDR ,&new_y LDR index_norock #09 #06
|
|
;collision_rocks/run JSR2
|
|
|
|
( if it is colliding with rock, check further )
|
|
DUP #ff NEQ ,&check_x_collision JCN
|
|
POP
|
|
,&update_x JMP
|
|
|
|
&check_x_collision
|
|
( DUP DEBUG )
|
|
( slow down and save rock index )
|
|
anispeedmask_slow ;ani_speedmask STA
|
|
,&rock_i STR
|
|
|
|
( check if rock collides with others )
|
|
;rocks_x #00 ,&rock_i LDR ADD2 LDA ,&rock_x STR
|
|
;rocks_y #00 ,&rock_i LDR ADD2 LDA ,&rock_y STR
|
|
|
|
,&rock_x LDR ,&rock_y LDR ,&rock_i LDR #09 #06
|
|
;collision_rocks/run JSR2
|
|
|
|
( DUP DEBUG )
|
|
|
|
( if it is colliding, then skip adding x )
|
|
DUP #ff NEQ ,&check_y JCN
|
|
POP
|
|
|
|
|
|
( if not, check for borders )
|
|
;&rock_x LDA minposx EQU ;&noup_x JCN2
|
|
;&rock_x LDA maxposx EQU ;&noup_x JCN2
|
|
|
|
( move rock with same speed as c )
|
|
;&rock_x LDA ;c_speed/x LDA ADD
|
|
;rocks_x #00 ;&rock_i LDA ADD2
|
|
STA
|
|
|
|
|
|
&update_x
|
|
;&new_x LDA ;c_pos/x STA
|
|
|
|
,&check_y JMP
|
|
|
|
&noup_x
|
|
|
|
&check_y
|
|
( check collision with borders )
|
|
;&new_y LDA minposy EQU ;&noup_y JCN2
|
|
;&new_y LDA maxposy EQU ;&noup_y JCN2
|
|
|
|
( check collision with rocks )
|
|
;&new_x LDA ;&new_y LDA index_norock #06 #09
|
|
;collision_rocks/run JSR2
|
|
|
|
( if it is colliding with rock, check further )
|
|
DUP #ff NEQ ,&check_y_collision JCN
|
|
POP
|
|
,&update_y JMP
|
|
|
|
&check_y_collision
|
|
( DUP DEBUG )
|
|
anispeedmask_slow ;ani_speedmask STA
|
|
;&rock_i STA
|
|
|
|
( check if rock collides with others )
|
|
;rocks_x #00 ;&rock_i LDA ADD2 LDA ;&rock_x STA
|
|
;rocks_y #00 ;&rock_i LDA ADD2 LDA ;&rock_y STA
|
|
|
|
;&rock_x LDA ;&rock_y LDA ;&rock_i LDA #06 #09
|
|
;collision_rocks/run JSR2
|
|
|
|
( DUP DEBUG )
|
|
|
|
( if it is colliding, then skip adding y )
|
|
DUP #ff NEQ ,&noup_y JCN
|
|
POP
|
|
|
|
( if not, check for borders )
|
|
;&rock_y LDA minposx EQU ;&noup_y JCN2
|
|
;&rock_y LDA maxposx EQU ;&noup_y JCN2
|
|
|
|
( if not colliding, then move rock with same speed as c )
|
|
;&rock_y LDA ;c_speed/y LDA ADD
|
|
;rocks_y #00 ;&rock_i LDA ADD2
|
|
STA
|
|
|
|
|
|
&update_y
|
|
;&new_y LDA ;c_pos/y STA
|
|
JMP2r
|
|
|
|
&noup_y
|
|
JMP2r
|
|
|
|
@update_r
|
|
&rock_i $1
|
|
|
|
&run
|
|
|
|
( check collision with rocks )
|
|
;tog/x LDA ;tog/y LDA index_norock #02 #02
|
|
;collision_rocks/run JSR2
|
|
|
|
( if it is colliding with rock, check if it needs to change state )
|
|
DUP #ff NEQ ,&change_state JCN
|
|
|
|
( DUP DEBUG )
|
|
|
|
( if there's no collision, reset toggler )
|
|
POP
|
|
#00 ;tog/state STA
|
|
JMP2r
|
|
|
|
&change_state
|
|
( DUP DEBUG )
|
|
,&rock_i STR
|
|
;tog/state LDA ,&done JCN ( don't toggle if state is active )
|
|
|
|
;r_color #00 ,&rock_i LDR ADD2 DUP2 STH2
|
|
LDA #01 EOR STH2r STA
|
|
#01 ;tog/state STA
|
|
&done
|
|
|
|
JMP2r
|
|
|
|
@animate_c
|
|
( is bit0 -animate- on? )
|
|
;c_state LDA DUP #00 get_bit_n #01 NEQ ,&s_no_animate JCN
|
|
|
|
( increment and save animation pointer )
|
|
&s_animate
|
|
DUP
|
|
get_nibble_h #01 ADD #03 AND #40 SFT
|
|
SWP get_nibble_l ORA
|
|
;c_state STA
|
|
JMP2r
|
|
|
|
&s_no_animate
|
|
get_nibble_h #0f AND ;c_state STA
|
|
JMP2r
|
|
|
|
@draw_c ( draw character )
|
|
#00 ;c_state LDA get_nibble_h #08 MUL
|
|
;c_sprite LDA2 ADD2 .Screen/addr DEO2
|
|
;c_pos/x out_screen_x
|
|
;c_pos/y out_screen_y
|
|
;c_color LDA .Screen/color DEO
|
|
JMP2r
|
|
|
|
@clear_c ( clear character )
|
|
;s_clear .Screen/addr DEO2
|
|
;c_pos/x out_screen_x
|
|
;c_pos/y out_screen_y
|
|
#30 .Screen/color DEO
|
|
JMP2r
|
|
|
|
@init_bg
|
|
( init bg )
|
|
;s_border .Screen/addr DEO2
|
|
|
|
.Screen/height DEI2 #0000 STH2
|
|
&vertical0loop
|
|
DUP2
|
|
STH2r
|
|
DUP2 .Screen/y DEO2
|
|
|
|
|
|
.Screen/width DEI2 #0000 STH2
|
|
&horizontal0loop
|
|
DUP2
|
|
STH2r
|
|
DUP2 .Screen/x DEO2
|
|
|
|
#23 .Screen/color DEO
|
|
|
|
#0008 ADD2 DUP2 STH2
|
|
GTH2 ,&horizontal0loop JCN
|
|
|
|
STH2r POP2 POP2
|
|
|
|
|
|
#0008 ADD2 DUP2 STH2
|
|
GTH2 ,&vertical0loop JCN
|
|
STH2r
|
|
POP2 POP2
|
|
|
|
( arena )
|
|
|
|
;s_clear .Screen/addr DEO2
|
|
|
|
#00 maxposy #00 minposy STH2
|
|
&vertical0loop_clear
|
|
DUP2
|
|
STH2r
|
|
DUP2 .Screen/y DEO2
|
|
|
|
|
|
#00 maxposx #00 minposx STH2
|
|
&horizontal0loop_clear
|
|
DUP2
|
|
STH2r
|
|
DUP2 .Screen/x DEO2
|
|
|
|
#20 .Screen/color DEO
|
|
|
|
#0008 ADD2 DUP2 STH2
|
|
GTH2 ,&horizontal0loop_clear JCN
|
|
|
|
STH2r POP2 POP2
|
|
|
|
#0008 ADD2 DUP2 STH2 GTH2 ,&vertical0loop_clear JCN
|
|
STH2r
|
|
POP2 POP2
|
|
|
|
JMP2r
|
|
|
|
( rocks )
|
|
@rocks_x [ 25 30 42 50 67 90 98 e8 20 43 43 57 5a 7f bc a5
|
|
e5 dd a2 20 b7 9b 38 e8 33 43 63 b7 aa cf bc ]
|
|
@rocks_y [ 60 48 34 56 23 65 65 65 ba e9 24 22 72 91 22 c5
|
|
25 30 42 50 67 90 98 e8 20 43 43 57 5a 7f bc ]
|
|
@r_color [ 00 01 01 00 00 00 01 01 01 01 00 00 01 01 00 00
|
|
01 00 01 00 00 01 00 01 01 01 01 01 00 00 00 ]
|
|
|
|
( sprites )
|
|
|
|
@s_clear [ 0000 0000 0000 0000 ]
|
|
@s_border [ 3288 7e83 780d e013 ]
|
|
@s_bola [ 3c4e 9ffd f962 3c00 ]
|
|
@s_stand [ 0000 0000 0024 7eff ]
|
|
@s_stand_original [ 0000 0000 0000 3c7e ]
|
|
|
|
@s_monitx [ 3c7e 5a7f 1b3c 5a18 ]
|
|
@s_monitx_back [ 3c7e 7efe d83c 5a18 ]
|
|
|
|
@s_monitx_stepfront0 [ 3c7e 5a7f 1b3c 5a18 ]
|
|
@s_monitx_stepfront1 [ 3c7e 5a7f 1b3c 5a10 ]
|
|
@s_monitx_stepfront2 [ 3c7e 5a7f 1b3c 5a18 ]
|
|
@s_monitx_stepfront3 [ 3c7e 5a7f 1b3c 5a08 ]
|
|
|
|
@s_monitx_stepback0 [ 3c7e 7efe d83c 5a18 ]
|
|
@s_monitx_stepback1 [ 3c7e 7efe d83c 5a10 ]
|
|
@s_monitx_stepback2 [ 3c7e 7efe d83c 5a18 ]
|
|
@s_monitx_stepback3 [ 3c7e 7efe d83c 5a08 ]
|
|
|
|
@s_monitx_stepside0 [ 1c3c 7afc d81c 1818 ]
|
|
@s_monitx_stepside1 [ 1c3c 7afc d81c 1828 ]
|
|
@s_monitx_stepside2 [ 1c3c 7afc d81c 3810 ]
|
|
@s_monitx_stepside3 [ 1c3c 7afc d81c 1814 ]
|
|
|