mist: tower rotation picture lines
not perfect line drawing but I don't care enough to make it perfect it seems
This commit is contained in:
Vince Weaver
parent
5f8bedcf4e
commit
9180e02dd1
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@ -50,6 +50,7 @@ mist_title.o: mist_title.s zp.inc hardware.inc common_defines.inc \
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gr_copy.s gr_offsets.s gr_pageflip.s gr_putsprite_crop.s \
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text_print.s gr_fast_clear.s decompress_fast_v2.s \
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keyboard.s draw_pointer.s end_level.s audio.s \
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init_state.s \
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link_book_mist_dock.s common_sprites.inc leveldata_title.inc
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ca65 -o mist_title.o mist_title.s -l mist_title.lst
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@ -88,6 +89,7 @@ octagon.o: octagon.s zp.inc hardware.inc common_defines.inc \
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draw_pointer.s \
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end_level.s \
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octagon_bookshelf.s \
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octagon_rotation.s \
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gr_copy.s audio.s text_print.s decompress_fast_v2.s
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ca65 -o octagon.o octagon.s -l octagon.lst
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@ -51,4 +51,9 @@ init_state:
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sta VIEWER_CHANNEL
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sta VIEWER_LATCHED
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sta TOWER_ROTATION
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lda #$ff ; for debugging
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sta MARKER_SWITCHES
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rts
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@ -134,7 +134,7 @@ location6:
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.byte $ff ; north exit_dir
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.byte $ff ; south exit_dir
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.byte $ff ; east exit_dir
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.byte DIRECTION_W ; west exit_dir
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.byte DIRECTION_W|DIRECTION_SPLIT ; west exit_dir
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.word $0000 ; north bg
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.word $0000 ; south bg
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.word $0000 ; east bg
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@ -233,7 +233,10 @@ location11:
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.word $0000 ; east bg
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.word tower_rotation_lzsa ; west bg
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.byte BG_WEST
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.byte $ff
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.byte DIRECTION_W
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.byte 28,33 ; special x
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.byte 14,22 ; special y
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.word rotate_tower-1 ; special function
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; OCTAGON_BOOKSHELF_CLOSE -- the bookcase close in
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location12:
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@ -60,6 +60,13 @@ game_loop:
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; handle special-case forground logic
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;====================================
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; things always happening
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lda LOCATION
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cmp #OCTAGON_TOWER_ROTATION
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beq animate_tower_rotation
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; things only happening when animating
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lda ANIMATE_FRAME
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beq nothing_special
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@ -91,6 +98,10 @@ animate_elevator:
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jsr animate_elevator_ride
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jmp nothing_special
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animate_tower_rotation:
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jsr handle_tower_rotation
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jmp nothing_special
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nothing_special:
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;====================================
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@ -264,6 +275,8 @@ done_goto:
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.include "octagon_bookshelf.s"
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.include "octagon_rotation.s"
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; linking books
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; letters
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@ -290,8 +290,12 @@ door_swirl:
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cant_noise:
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ldx #$50
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ldx #$ff
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cant_noise_loop:
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bit $c030
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nop
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nop
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nop
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bit $c030
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nop
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nop
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@ -0,0 +1,214 @@
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; clickd on map, rotate the tower
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rotate_tower:
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ldy TOWER_ROTATION
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iny
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cpy #10
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bcc done_rotate_tower
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ldy #0
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done_rotate_tower:
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sty TOWER_ROTATION
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rts
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handle_tower_rotation:
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; draw sprites based on background
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; only needs to be done once?
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jsr draw_tower_line
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rts
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draw_tower_line:
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; set color
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ldy TOWER_ROTATION
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ldx line_colors,Y
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cpx #$77
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beq color_good
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lda MARKER_SWITCHES
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line_gears:
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cpy #ROTATION_GEARS
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bne line_dock
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and #MARKER_GEARS
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beq white_line
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bne red_line
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line_dock:
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cpy #ROTATION_DOCK
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bne line_tree
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and #MARKER_DOCK
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beq white_line
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bne red_line
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line_tree:
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cpy #ROTATION_TREE
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bne line_spaceship
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and #MARKER_TREE
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beq white_line
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bne red_line
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line_spaceship:
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and #MARKER_SPACESHIP
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beq white_line
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red_line:
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ldx #$11
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bne color_good
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white_line:
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ldx #$77
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color_good:
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stx plot_color+1
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; get initial position (30 x 20)
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ldy #(30*2)
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sty CH
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lda #(20*4)
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sta CV
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tower_line_loop:
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; check x bounds
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ldy CH
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cpy #(8*2)
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bcc done_tower_line
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cpy #(34*2)
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bcs done_tower_line
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; check y bounds
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lda CV
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cmp #(6*4)
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bcc done_tower_line
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cmp #(40*4)
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bcs done_tower_line
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jsr plot_point
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; update X
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lda CH
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clc
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ldy TOWER_ROTATION
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adc xslopes,Y
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sta CH
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; update Y
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lda CV
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clc
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adc yslopes,Y
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sta CV
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jmp tower_line_loop
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done_tower_line:
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rts
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; turn on double high point at CH,CV
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plot_point:
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lda CV ; y
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lsr
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lsr
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and #$fe ; make even
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tax
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lda gr_offsets,X
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sta OUTL
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lda gr_offsets+1,X
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clc
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adc DRAW_PAGE
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sta OUTH
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lda CH ; X * 2
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lsr
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tay
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plot_color:
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lda #$77
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sta (OUTL),Y
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rts
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; rotations (10)
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; for each y increment/decrement, how much X to change
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xslopes:
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.byte 1 ; (1,0) yslope=0
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.byte 1 ; (1,2) yslope=2
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.byte $ff ; (-1,4) yslope=4
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.byte $ff ; (-1,1) yslope=1
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.byte $ff ; (-1,0.5) yslope=0.5
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.byte $ff ; (-1,0.2) yslope=0.2
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.byte $ff ; (-1,-0.5) yslope=-0.5
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.byte $ff ; (-1,-1) yslope=-1
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.byte $ff ; (-1,-4) yslope=-4
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.byte 1 ; ( 1,-2) yslope=-2
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; 6.2 fixed point
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yslopes:
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.byte $00 ; (1,0) yslope=0 00000.00
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.byte $08 ; (1,2) yslope=2 00010.00
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.byte $10 ; (-1,4) yslope=4 00100.00
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.byte $04 ; (-1,1) yslope=1 00001.00
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.byte $02 ; (-1,0.5) yslope=0.5 00000.10
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.byte $00 ; (-1,0.2) yslope=0.2 00000.01
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.byte $fe ; (-1,-0.5) yslope=-0.5 11111.10
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.byte $fc ; (-1,-1) yslope=-1 11111.00
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.byte $f0 ; (-1,-4) yslope=-4 11100.00
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.byte $f8 ; ( 1,-2) yslope=-2 11110.00
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line_colors:
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.byte $77,$77,$11,$11,$11
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.byte $77,$77,$77,$11,$77
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.if 0
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; 7.1 fixed point
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xslopes:
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.byte 2 ; (1,0) 0000001.0
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.byte 1 ; (0.5,2) 0000000.1
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.byte $ff ; (-0.5,8) 1111111.1
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.byte $ff ; (-0.5,1) 1111111.1
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.byte $fe ; (-1,1) 1111111.0
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.byte $f6 ; (-5,1) 1111011.0 ; 01010 -> 1 011.0
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.byte $fe ; (-1,-1) 1111111.0
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.byte $ff ; (-0.5,-1) 1111111.1
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.byte $ff ; (-0.5,-6) 1111111.1
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.byte 1 ; ( 0.5,-2) 0000000.1
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; 5.3 fixed point
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yslopes:
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.byte 0 ; (1,0) 00000.000
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.byte 2 ; (0.5,2) 00010.000
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.byte 8 ; (-0.5,8) 00000.001
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.byte 1 ; (-0.5,1)
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.byte 1 ; (-1,1)
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* .byte 1 ; (-5,1)
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.byte $ff ; (-1,-1)
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.byte $ff ; (-0.5,-1)
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.byte $fa ; (-0.5,-6)
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.byte $fe ; ( 0.5,-2)
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.endif
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17
mist/zp.inc
17
mist/zp.inc
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@ -17,6 +17,7 @@ GBASH = $27
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BASL = $28
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BASH = $29
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H2 = $2C
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X_LEFT = $2C
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V2 = $2D
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MASK = $2E
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COLOR_MASK = $2F
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@ -60,10 +61,21 @@ RED_PAGES_TAKEN = $80
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OCTOGON_PAGE = 1
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MECHE_PAGE = 2
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SELENA_PAGE = 4
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STONEY_PAGE = 8
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CHANNEL_PAGE = 16
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BLUE_PAGES_TAKEN= $81
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CLOCK_BRIDGE = $82
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GEAR_OPEN = $83
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MARKER_SWITCHES = $84
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MARKER_DOCK = $01
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MARKER_GEARS = $02
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MARKER_SPACESHIP = $04
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MARKER_GENERATOR = $08
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MARKER_CLOCK = $10
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MARKER_TREE = $20
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MARKER_POOL = $40
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MARKER_DENTIST = $80
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CLOCK_HOUR = $85
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CLOCK_MINUTE = $86
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TREE_FURNACE_ON = $87
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@ -108,6 +120,11 @@ RED_PAGE_COUNT = $A7
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BLUE_PAGE_COUNT = $A8
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VIEWER_CHANNEL = $A9
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VIEWER_LATCHED = $AA
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TOWER_ROTATION = $AB
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ROTATION_GEARS = 2
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ROTATION_DOCK = 3
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ROTATION_TREE = 4
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ROTATION_SPACESHIP = 8
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; done game puzzle state
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