443 lines
7.0 KiB
NASM
443 lines
7.0 KiB
NASM
;
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; application : 3d shaking waved spiral
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; compilator : fasm
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; system : KolibriOS
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; author : macgub
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; email : macgub3@wp
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timeout equ 3
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maxx equ 616 ; window size
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maxy equ 420
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use32
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org 0x0
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db 'MENUET01' ; 8 byte id
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dd 0x01 ; header version
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dd START ; start of code
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dd I_END ; size of image
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dd 0x100000 ; memory for app
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dd 0xbffff ; esp
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dd 0x0 , 0x0 ; I_Param , I_Icon
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START: ; start of execution
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call draw_window
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still:
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; mov eax,23 ; wait here for event
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; mov ebx,timeout
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; int 0x40
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mov eax,11 ; check for event no wait
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int 0x40
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cmp eax,1 ; redraw request ?
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je red
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cmp eax,2 ; key in buffer ?
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je key
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cmp eax,3 ; button in buffer ?
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je button
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jmp noclose
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red: ; redraw
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call draw_window
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jmp still
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key: ; key
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mov eax,2 ; just read it and ignore
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int 0x40
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shr eax,8
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cmp eax, 27
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jne still
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mov eax, -1
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int 0x40
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button: ; button
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mov eax,17 ; get id
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int 0x40
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cmp ah,1 ; button id=1 ?
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jne noclose
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mov eax,-1 ; close this program
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int 0x40
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noclose:
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; mov eax,13
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; mov ebx,20*65536+maxx-25
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; mov ecx,20*65536+maxy-25
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; xor edx,edx
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; int 0x40
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mov edi,screen_buf
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mov ecx,maxx*maxy*3/4
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xor eax,eax
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cld
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rep stosd
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call calc_deg
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mov [z],0
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mov [sin_counter],0
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finit
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oopz:
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mov [x],0
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push [z]
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call calc_sin_variable
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oop:
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push [x]
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; call getcol ;(x,z)
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call fun ; calculates y and y1
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; call rotateY
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mov eax,[sin_variable]
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add eax,[vector_x] ; vector_x
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add [x],eax
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mov eax,[vector_y]
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add [y],eax ; vector_y
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add [y1],eax
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call point_perspective
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call draw_point_3d
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pop [x]
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inc [x]
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mov eax,[x]
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cmp eax,[loop_counter]
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jne oop
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inc [sin_counter]
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pop [z]
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inc [z]
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cmp [z],200
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jne oopz
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mov eax,7
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mov ebx,screen_buf
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mov ecx,maxx*65536+maxy
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mov edx,0*65536+0
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int 0x40
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call set_elipse_dim
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call set_vectors
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jmp still
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;-----------------++++++PROCEDURES
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getcol:
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mov eax,[x_resolution]
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mul [z]
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add eax,[x]
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mov ebx,eax
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mov eax,35
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int 0x40
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mov [col],eax
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ret
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set_vectors:
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cmp [vector_x],55
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jne vec1
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mov [vector_dir_x],1
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vec1:
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cmp [vector_x],250
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jne vec2
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mov [vector_dir_x],0
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vec2:
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cmp [vector_dir_x],1
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jne vec3
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inc [vector_x]
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jmp end_x
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vec3:
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dec [vector_x]
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end_x:
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cmp [vector_y],195
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jne vec4
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mov [vector_dir_y],1
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vec4:
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cmp [vector_y],205
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jne vec5
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mov [vector_dir_y],0
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vec5:
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cmp [vector_dir_y],1
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jne vec6
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inc [vector_y]
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ret
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vec6:
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dec [vector_y]
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ret
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set_elipse_dim:
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cmp [b],60
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jne go11
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mov [elipse_dir],0
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go11:
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cmp [b],10
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jne go12
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mov [elipse_dir],1
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go12:
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cmp [elipse_dir],1
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jne go13
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inc [b]
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dec [a]
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mov eax,[a]
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mov [xo],eax
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shl eax,1
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inc eax
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mov [loop_counter],eax
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ret
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go13:
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dec [b]
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inc [a]
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mov eax,[a]
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mov [xo],eax
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shl eax,1
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inc eax
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mov [loop_counter],eax
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ret
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calc_deg:
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cmp [deg_counter], 360
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jne go_deg
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mov [deg_counter],0
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go_deg:
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fldpi
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fidiv [deg_div]
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fimul [deg_counter]
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fstp [current_deg]
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; fsincos
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; fstp [cosbeta]
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; fstp [sinbeta]
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inc [deg_counter]
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ret
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;rotateY:
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; mov eax,[z]
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; sub eax,[zoo]
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; mov [subz],eax
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; mov eax,[x]
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; sub eax,[xoo]
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; mov [subx],eax
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;
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; fld [sinbeta]
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; fimul [subz]
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; fchs
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; fld [cosbeta]
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; fimul[subx]
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; faddp
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; fiadd [xoo]
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; fistp [x]
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; fld [sinbeta]
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; fimul [subx]
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; fld [cosbeta]
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; fimul [subz]
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; faddp
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; fiadd [zoo]
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; fistp [z]
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; finit
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; ret
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point_perspective:
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mov eax,[x]
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sub eax,[xobs]
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mov [xobssub],eax
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mov eax,[z]
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sub eax,[zobs]
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mov [zobssub],eax
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mov eax,[y]
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sub eax,[yobs]
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mov [yobssub],eax
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mov eax,[y1]
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sub eax,[yobs]
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mov [y1obssub],eax
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finit
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fild [xobssub]
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fidiv [zobssub]
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fimul [zobs]
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fchs
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fiadd [xobs]
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fistp [x]
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fild [yobssub]
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fidiv [zobssub]
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fimul [zobs]
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fchs
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fiadd [yobs]
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fistp [y]
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; mov eax,[xobssub]
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; idiv [zobssub]
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;; mov eax,edx
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; imul [zobs]
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; neg eax
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; add eax,[xobs]
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; mov [x],eax
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; mov eax,[yobssub]
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; idiv [zobssub]
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;; mov eax,edx
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; imul [zobs]
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; neg eax
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; add eax,[yobs]
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; mov [y],eax
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fild [y1obssub]
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fidiv [zobssub]
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fimul [zobs]
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fchs
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fiadd [yobs]
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fistp [y1]
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ret
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calc_sin_variable:
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;calculate sinus variable
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fldpi
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fidiv [sin_gran]
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fimul [sin_counter]
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fadd [current_deg]
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fsin
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fimul [sin_mul]
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fistp [sin_variable]
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ret
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fun:
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; finit
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fild [x]
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fisub [xo]
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; fchs
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; faddp
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fild [a]
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fdivp st1,st
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fmul st,st0
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fchs
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fld1
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faddp
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fsqrt
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fimul [b]
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fld st
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fchs
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fiadd [yo]
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fistp [y]
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fiadd [yo]
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fistp [y1]
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ret
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draw_point_3d:
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mov eax,[z]
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imul [sq]
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shr eax,10
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mov ebx,eax
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neg eax
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push eax
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add eax,[y]
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mov [y],eax
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pop eax
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add eax,[y1]
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mov [y1],eax
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mov eax,ebx
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add eax,[x]
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mov [x],eax
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;mov eax,1
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;mov ebx,[x]
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;mov ecx,[y]
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;mov edx,[col]
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;int 0x40
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;mov ecx,[y1]
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;int 0x40
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mov eax,maxx
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mul [y]
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add eax,[x]
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mov ebx,eax
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shl ebx,1
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add eax,ebx
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add eax,screen_buf
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mov ebx,[col]
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or [eax],ebx
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mov eax,maxx
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mul [y1]
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add eax,[x]
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mov ebx,eax
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shl ebx,1
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add eax,ebx
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add eax,screen_buf
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mov ebx,[col]
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or [eax],ebx
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ret
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; *********************************************
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; ******* WINDOW DEFINITIONS AND DRAW ********
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; *********************************************
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draw_window:
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mov eax,12 ; function 12:tell os about windowdraw
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mov ebx,1 ; 1, start of draw; 2 - end
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int 0x40
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mov eax, 48 ; get skin height
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mov ebx, 4
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int 0x40
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lea ecx,[eax + (100 shl 16) + maxy + 4]
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mov ebx,100*65536+maxx+9 ; [x start] *65536 + [x size]
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mov edx,0x74000000 ; skinned window, not resizable
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mov edi,labelt ; window title
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mov eax,0 ; function 0 : define and draw window
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int 0x40
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mov eax,12
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mov ebx,2
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int 0x40
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ret
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x_resolution dd 800
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vector_x dd 200
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vector_y dd 200
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vector_dir_x db 1
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vector_dir_y db 1
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elipse_dir db 1
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deg_counter dd ? ; rotation variables
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deg_div dd 20
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current_deg dd ?
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;cosbeta dd ?
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;sinbeta dd ?
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;zoo dd 100 ; rotation axle
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;xoo dd 40
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;yoo dd 20
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;subx dd ?
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;suby dd ?
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;subz dd ?
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xobs dd maxx/2 ; 320 observer variables
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yobs dd maxy/2 ; 175
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zobs dd -200
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xobssub dd ?
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yobssub dd ?
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y1obssub dd ?
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zobssub dd ?
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sin_variable dd ?
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sin_mul dd 60
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sin_gran dd 30
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sin_counter dd 0
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sq dd 724 ; round( (sqrt2)/2*1024 )
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z dd ?
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x dd ?
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y dd ?
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y1 dd ?
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xo dd 70 ; center point , (loop counter-1)/2
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yo dd 20
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a dd 70 ; vertical half-axle
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b dd 20 ; horizontal half-axle
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loop_counter dd 141 ; axle granularity
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col dd 0x00ffffff
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labelt:
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db ' 3D shaking waved spiral',0
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labellen:
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screen_buf:
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I_END:
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