mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-06-17 13:29:39 +00:00
223 lines
3.2 KiB
ArmAsm
223 lines
3.2 KiB
ArmAsm
; Chess board, polyhedrons, circles, interference
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;
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; by deater (Vince Weaver) <vince@deater.net>
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.include "../zp.inc"
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.include "../hardware.inc"
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.include "../qload.inc"
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mod7_table = $1c00
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div7_table = $1d00
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hposn_low = $1e00
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hposn_high = $1f00
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chess_start:
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;=====================
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; initializations
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;=====================
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;===================
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; Load graphics
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;===================
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bit SET_GR
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bit HIRES
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bit FULLGR
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bit PAGE1
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lda #0
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jsr hgr_page1_clearscreen
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jsr hgr_page2_clearscreen
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bit PAGE2
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; load image offscreen $6000
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lda #<chess_data
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sta zx_src_l+1
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lda #>chess_data
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sta zx_src_h+1
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lda #$60
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jsr zx02_full_decomp
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lda #0
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sta COUNT
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sta DRAW_PAGE
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lda #$60 ; copy to screen
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jsr hgr_copy
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bit PAGE1
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jsr wait_until_keypress
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; load image offscreen $6000
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lda #<orange_data
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sta zx_src_l+1
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lda #>orange_data
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sta zx_src_h+1
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lda #$60
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jsr zx02_full_decomp
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ldx #0
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stx COUNT
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orange_loop:
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lda #$60 ; copy to screen
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jsr hgr_copy
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ldx COUNT
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lda object_coords_x,X
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cmp #$FF
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beq done_orange_loop
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sta SPRITE_X
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lda object_coords_y,X
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sta SPRITE_Y
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lda #<object_data
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sta INL
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lda #>object_data
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sta INH
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jsr hgr_draw_sprite_big
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jsr hgr_page_flip
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inc COUNT
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lda COUNT
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cmp #48
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bne no_orange_oflo
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lda #0
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sta COUNT
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no_orange_oflo:
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lda KEYPRESS
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bpl orange_loop
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done_orange_loop:
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bit KEYRESET
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chess_done:
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;==================
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;==================
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;==================
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; DO TUNNEL HERE
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;==================
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;==================
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;==================
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; load image $2000
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lda #<tunnel1_data
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sta zx_src_l+1
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lda #>tunnel1_data
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sta zx_src_h+1
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lda #$20
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jsr zx02_full_decomp
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; load image $4000
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lda #<tunnel2_data
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sta zx_src_l+1
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lda #>tunnel2_data
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sta zx_src_h+1
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lda #$40
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jsr zx02_full_decomp
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tunnel_loop:
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bit PAGE1
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lda #8
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jsr wait_irq
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bit PAGE2
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lda #8
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jsr wait_irq
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lda KEYPRESS
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bpl tunnel_loop
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main_tunnel_done:
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bit KEYRESET
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;==================
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;==================
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;==================
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; DO INTERFERENCE HERE
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;==================
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;==================
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;==================
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jsr interference
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main_interference_done:
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rts
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;.align $100
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.include "../wait_keypress.s"
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.include "../zx02_optim.s"
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; .include "../hgr_table.s"
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.include "../hgr_clear_screen.s"
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.include "../hgr_copy_fast.s"
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.include "../hgr_sprite_big.s"
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.include "interference.s"
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.include "../hgr_page_flip.s"
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; wait A * 1/50s
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wait_irq:
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; lda #50
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sta IRQ_COUNTDOWN
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wait_irq_loop:
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lda IRQ_COUNTDOWN
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bne wait_irq_loop
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rts
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chess_data:
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.incbin "graphics/chess_object2.hgr.zx02"
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orange_data:
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.incbin "graphics/orange_bg.hgr.zx02"
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object_data:
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.include "graphics/object.inc"
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tunnel1_data:
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.incbin "graphics/tunnel1_cropped.hgr.zx02"
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tunnel2_data:
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.incbin "graphics/tunnel2_cropped.hgr.zx02"
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; object is 15 wide
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; this is a triangle pattern
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; we could reverse at some point
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; 12*4 = 48
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object_coords_x:
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.byte 13,12,11,10, 9, 8, 7, 6, 5, 4, 3, 2
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.byte 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12
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.byte 13,14,15,16,17,18,19,20,21,22,23,24
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.byte 25,24,23,22,21,20,19,18,17,16,15,14
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object_coords_y:
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.byte 5,10,16,23,30,36,43,49,55,62,68,75
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.byte 82,82,82,82,82,82,82,82,82,82,82,82
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.byte 82,82,82,82,82,82,82,82,82,82,82,82
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.byte 75,68,62,55,49,43,36,30,23,16,10, 5
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