;Copyright (c) 1990-2012 by Neil Dodwell ;Released with permission from Neil Dodwell under GPLv2 ;See LICENSE file for full license text ;---------------------------------------------------------Inventory printer---- Fillryan proc near ; cx=what to search for mov es,buffers mov di,ryaninvlist call findallryan mov si,ryaninvlist mov al,ryanpage mov ah,0 mov cx,20 mul cx add si,ax mov di,inventx mov bx,inventy mov cx,2 ryanloop2: push cx di bx mov cx,5 ryanloop1: push cx di bx mov ax,[es:si] add si,2 push si es call obtoinv pop es si pop bx di cx add di,itempicsize loop ryanloop1 pop bx di cx add bx,itempicsize loop ryanloop2 call showryanpage ret endp Fillopen proc near call deltextline call getopenedsize ;find out how many slots cmp ah,4 ;ah=slots, al=size holdable jc lessthanapage mov ah,4 lessthanapage: mov al,1 push ax mov es,buffers mov di,openinvlist call findallopen mov si,openinvlist mov di,inventx mov bx,inventy+96 pop cx openloop1: push cx di bx mov ax,[es:si] add si,2 push si es cmp ch,cl jc nextopenslot call obtoinv nextopenslot: pop es si pop bx di cx add di,itempicsize inc cl cmp cl,5 jnz openloop1 call undertextline ret endp Findallryan proc near push di mov cx,30 mov ax,0ffffh rep stosw pop di mov cl,4 mov ds,extras mov bx,exdata mov ch,0 findryanloop: cmp [bx+2],cl jnz notinryaninv cmp byte ptr [bx+3],255 jnz notinryaninv mov al,[bx+4] mov ah,0 push di add di,ax add di,ax mov al,ch mov ah,4 ;means it is an exchanged object ie:not free or set stosw pop di notinryaninv: add bx,16 inc ch cmp ch,numexobjects jnz findryanloop ret endp Findallopen proc near push di mov cx,16 mov ax,0ffffh rep stosw pop di mov cl,openedob mov dl,openedtype mov ds,extras mov bx,exdata mov ch,0 findopen1: cmp [bx+3],cl jnz findopen2 cmp [bx+2],dl jnz findopen2 cmp openedtype,4 jz noloccheck mov al,[bx+5] cmp al,reallocation jnz findopen2 noloccheck: mov al,[bx+4] mov ah,0 push di add di,ax add di,ax mov al,ch mov ah,4 stosw pop di findopen2: add bx,16 inc ch cmp ch,numexobjects jnz findopen1 mov cl,openedob mov dl,openedtype push dx mov ds,freedat pop dx mov bx,0 mov ch,0 findopen1a: cmp [bx+3],cl jnz findopen2a cmp [bx+2],dl jnz findopen2a mov al,[bx+4] mov ah,0 push di add di,ax add di,ax mov al,ch mov ah,2 ; means it's in a free ob stosw pop di findopen2a: add bx,16 inc ch cmp ch,80 jnz findopen1a ret endp Obtoinv proc near push bx es si ax push ax di bx mov ds,icons1 sub di,2 sub bx,1 mov al,10 mov ah,0 call showframe pop bx di ax cmp al,255 jz finishfill push bx di ax mov ds,extras cmp ah,4 jz isanextra mov ds,freeframes isanextra: mov cl,al add al,al add al,cl inc al mov ah,128 add bx,19 add di,18 call showframe pop ax di bx push bx call getanyaddir call isitworn pop bx jnz finishfill mov ds,icons1 ;Print wearing logo sub di,3 sub bx,2 mov al,7 mov ah,0 call showframe finishfill: pop ax si es bx ret endp Isitworn proc near ;zero if yes mov al,[es:bx+12] cmp al,"W"-"A" jnz notworn mov al,[es:bx+13] cmp al,"E"-"A" notworn: ret endp Makeworn proc near mov byte ptr [es:bx+12],"W"-"A" mov byte ptr [es:bx+13],"E"-"A" ret endp ;-------------------------------------------------------Examining an object---- Examineob proc near mov pointermode,0 mov timecount,0 examineagain: mov inmaparea,0 mov examagain,0 mov openedob,255 mov openedtype,255 mov invopen,0 mov al,commandtype mov objecttype,al mov itemframe,0 mov pointerframe,0 call createpanel call showpanel call showman call showexit call obicons call obpicture call describeob call undertextline mov commandtype,255 call readmouse call showpointer call worktoscreen call delpointer waitexam: ;call delpointer call readmouse call showpointer call vsync call dumppointer call dumptextline call delpointer mov getback,0 mov bx,offset cs:examlist cmp invopen,0 jz notuseinv mov bx,offset cs:invlist1 cmp invopen,1 jz notuseinv mov bx,offset cs:withlist1 notuseinv: call checkcoords cmp quitrequested, 0 jnz stopwaiting cmp examagain,0 jz norex jmp examineagain norex: cmp getback,0 jz waitexam stopwaiting: mov pickup,0 cmp watchingtime,0 jnz iswatching cmp newlocation,255 jnz justgetback iswatching: call makemainscreen mov invopen,0 mov openedob,255 ret justgetback: mov invopen,0 mov openedob,255 ret examlist: dw 273,320,157,198,getbackfromob dw 260,300,0,44,useobject dw 210,254,0,44,selectopenob dw 144,176,64,96,setpickup dw 0,50,50,200,examinventory dw 0,320,0,200,blank dw 0ffffh invlist1: dw 273,320,157,198,getbackfromob dw 255,294,0,24,dropobject dw inventx+167,inventx+167+(18*3),inventy-18,inventy-2,incryanpage dw inventx openchangesize: dw inventx+(4*itempicsize) invlist1continued: dw inventy+100,inventy+100+itempicsize,useopened dw inventx,inventx+(5*itempicsize) dw inventy,inventy+(2*itempicsize),intoinv dw 0,320,0,200,blank dw 0ffffh withlist1: dw 273,320,157,198,getbackfromob dw inventx+167,inventx+167+(18*3),inventy-18,inventy-2,incryanpage dw inventx,inventx+(5*itempicsize) dw inventy,inventy+(2*itempicsize),selectob dw 0,320,0,200,blank dw 0ffffh endp Makemainscreen proc near call createpanel mov newobs,1 call drawfloor call spriteupdate call printsprites call reelsonscreen call showicon call getunderzoom call undertextline mov commandtype,255 call animpointer call worktoscreenm mov commandtype,200 mov manisoffscreen,0 ret endp Getbackfromob proc near cmp pickup,1 jnz notheldob call blank ret notheldob: call getback1 ret endp Incryanpage proc near cmp commandtype,222 jz alreadyincryan mov commandtype,222 mov al,31 call commandonly alreadyincryan: mov ax,mousebutton cmp ax,oldbutton jz noincryan and ax,1 jnz doincryan noincryan: ret doincryan: mov ax,mousex sub ax,inventx+167 mov ryanpage,-1 findnewpage: inc ryanpage sub ax,18 jnc findnewpage call delpointer call fillryan call readmouse call showpointer call worktoscreen call delpointer ret endp Openinv proc near mov invopen,1 mov al,61 mov di,inventx mov bx,inventy-10 mov dl,240 call printmessage call fillryan mov commandtype,255 ret endp Showryanpage proc near mov ds,icons1 mov di,inventx+167 mov bx,inventy-12 mov al,12 mov ah,0 call showframe mov al,13 add al,ryanpage push ax mov al,ryanpage mov ah,0 mov cx,18 mul cx mov ds,icons1 mov di,inventx+167 add di,ax mov bx,inventy-12 pop ax mov ah,0 call showframe ret endp Openob proc near mov al,openedob mov ah,openedtype mov di,offset cs:commandline call copyname mov di,inventx mov bx,inventy+86 mov al,62 mov dl,240 call printmessage mov di,lastxpos add di,5 mov bx,inventy+86 push cs pop es mov si,offset cs:commandline mov dl,220 mov al,0 mov ah,0 call printdirect call fillopen call getopenedsize mov al,ah mov ah,0 mov cx,itempicsize mul cx add ax,inventx mov bx,offset cs:openchangesize mov [cs:bx],ax ret endp Obicons proc near mov al,command call getanyad cmp al,255 jz cantopenit mov ds,icons2 mov di,210 mov bx,1 mov al,4 mov ah,0 call showframe cantopenit: mov ds,icons2 mov di,260 mov bx,1 mov al,1 mov ah,0 call showframe ret endp Examicon proc near mov ds,icons2 mov di,254 mov bx,5 mov al,3 mov ah,0 call showframe ret endp Obpicture proc near mov al,command mov ah,objecttype cmp ah,1 jz setframe cmp ah,4 jz exframe mov ds,freeframes mov di,160 mov bx,68 mov cl,al add al,al add al,cl inc al mov ah,128 call showframe ret setframe: ret exframe: mov ds,extras mov di,160 mov bx,68 mov cl,al add al,al add al,cl inc al mov ah,128 call showframe ret endp Describeob proc near call getobtextstart mov di,33 mov bx,92 cmp foreignrelease, 0 jz notsetd cmp objecttype,1 jnz notsetd mov bx,82 notsetd: mov dl,241 mov ah,16 mov charshift,91+91 call printdirect mov charshift,0 mov di,36 mov bx,104 cmp foreignrelease, 0 jz notsetd2 cmp objecttype,1 jnz notsetd2 mov bx,94 notsetd2: mov dl,241 mov ah,0 call printdirect push bx call obsthatdothings pop bx call additionaltext ret endp Additionaltext proc near add bx,10 push bx mov al,command mov ah,objecttype mov cl,"C" mov ch,"U" mov dl,"P" mov dh,"E" call compare jz emptycup mov al,command mov ah,objecttype mov cl,"C" mov ch,"U" mov dl,"P" mov dh,"F" call compare jz fullcup pop bx ret emptycup: mov al,40 call findpuztext pop bx mov di,36 mov dl,241 mov ah,0 call printdirect ret fullcup: mov al,39 call findpuztext pop bx mov di,36 mov dl,241 mov ah,0 call printdirect ret endp Obsthatdothings proc near mov al,command mov ah,objecttype mov cl,"M" mov ch,"E" mov dl,"M" mov dh,"B" call compare jnz notlouiscard mov al,4 call getlocation cmp al,1 jz seencard mov al,4 call setlocation call lookatcard seencard: ret notlouiscard: ret endp Getobtextstart proc near mov es,freedesc mov si,freetextdat mov cx,freetext cmp objecttype,2 jz describe mov es,setdesc mov si,settextdat mov cx,settext cmp objecttype,1 jz describe mov es,extras mov si,extextdat mov cx,extext describe: mov al,command mov ah,0 add ax,ax add si,ax mov ax,[es:si] add ax,cx mov si,ax mov bx,ax tryagain: push si call findnextcolon mov al,[es:si] mov cx,si pop si cmp objecttype,1 jnz cantmakeoneup cmp al,0 jz findsometext cmp al,":" jz findsometext cantmakeoneup: ret findsometext: call searchforsame jmp tryagain ret endp Searchforsame proc near mov si,cx searchagain: inc si mov al,[es:bx] search: cmp [es:si],al jz gotstartletter inc cx inc si cmp si,8000 ;arbitrary give-up jc search ;counter. mov si,bx pop ax ret gotstartletter: push bx si keepchecking: inc si inc bx mov al,[es:bx] mov ah,[es:si] cmp al,":" jz foundmatch cmp al,0 jz foundmatch cmp al,ah jz keepchecking pop si bx jmp searchagain foundmatch: pop si bx ret endp ;-----------------------------------------------------------Using an object---- Findnextcolon proc near isntcolon: mov al,[es:si] inc si cmp al,0 jz endofcolon cmp al,":" jnz isntcolon endofcolon: ret endp ;------------------------------------------------------Taking, dropping etc---- Inventory proc near cmp mandead,1 jz iswatchinv cmp watchingtime,0 jz notwatchinv iswatchinv: call blank ret notwatchinv: cmp commandtype,239 jz alreadyopinv mov commandtype,239 mov al,32 call commandonly alreadyopinv: mov ax,mousebutton cmp ax,oldbutton jz cantopinv and ax,1 jnz doopeninv cantopinv: ret doopeninv: mov timecount,0 mov pointermode,0 mov inmaparea,0 call animpointer call createpanel call showpanel call examicon call showman call showexit call undertextline mov pickup,0 mov invopen,2 call openinv call readmouse call showpointer call worktoscreen call delpointer mov openedob,255 jmp waitexam ; very naughty! endp Setpickup proc near cmp objecttype,1 jz cantpick cmp objecttype,3 jz cantpick call getanyad mov al,[es:bx+2] cmp al,4 jnz canpick cantpick: call blank ret canpick: cmp commandtype,209 jz alreadysp mov commandtype,209 mov bl,command mov bh,objecttype mov al,33 call commandwithob alreadysp: mov ax,mousebutton cmp ax,1 jnz nosetpick cmp ax,oldbutton jnz dosetpick nosetpick: ret dosetpick: call createpanel call showpanel call showman call showexit call examicon mov pickup,1 mov invopen,2 cmp objecttype,4 jz pickupexob mov al,command mov itemframe,al mov openedob,255 call transfertoex mov itemframe,al mov objecttype,4 call geteitherad mov byte ptr [es:bx+2],20 ; means it is in transit mov byte ptr [es:bx+3],255 call openinv call worktoscreenm ret pickupexob: mov al,command mov itemframe,al mov openedob,255 call openinv call worktoscreenm ret endp Examinventory proc near cmp commandtype,249 jz alreadyexinv mov commandtype,249 mov al,32 call commandonly alreadyexinv: mov ax,mousebutton and ax,1 jnz doexinv ret doexinv: call createpanel call showpanel call showman call showexit call examicon mov pickup,0 mov invopen,2 call openinv call worktoscreenm ret endp Reexfrominv proc near call findinvpos mov ax,[es:bx] mov commandtype,ah mov command,al mov examagain,1 mov pointermode,0 ret endp Reexfromopen proc near ret call findopenpos mov ax,[es:bx] mov commandtype,ah mov command,al mov examagain,1 mov pointermode,0 ret endp Swapwithinv proc near mov al,itemframe mov ah,objecttype cmp ax,oldsubject jnz difsub7 cmp commandtype,243 jz alreadyswap1 mov commandtype,243 difsub7: mov oldsubject,ax mov bx,ax mov al,34 call commandwithob alreadyswap1: mov ax,mousebutton cmp ax,oldbutton jz cantswap1 and ax,1 jnz doswap1 cantswap1: ret doswap1: mov ah,objecttype mov al,itemframe push ax call findinvpos mov ax,[es:bx] mov itemframe,al mov objecttype,ah call geteitherad mov byte ptr [es:bx+2],20 ; means unplaced object mov byte ptr [es:bx+3],255 mov bl,itemframe mov bh,objecttype pop ax mov objecttype,ah mov itemframe,al push bx call findinvpos ;NONE OF THIS IS NEEDED call delpointer ;ONLY EXTRAS CAN BE IN mov al,itemframe call geteitherad mov byte ptr [es:bx+2],4 mov byte ptr [es:bx+3],255 mov al,lastinvpos mov [es:bx+4],al pop ax mov objecttype,ah mov itemframe,al call fillryan call readmouse call showpointer call worktoscreen call delpointer ret endp Swapwithopen proc near mov al,itemframe mov ah,objecttype cmp ax,oldsubject jnz difsub8 cmp commandtype,242 jz alreadyswap2 mov commandtype,242 difsub8: mov oldsubject,ax mov bx,ax mov al,34 call commandwithob alreadyswap2: mov ax,mousebutton cmp ax,oldbutton jz cantswap2 and ax,1 jnz doswap2 cantswap2: ret doswap2: call geteitherad call isitworn jnz notwornswap call wornerror ret notwornswap: call delpointer mov al,itemframe cmp al,openedob jnz isntsame2 mov al,objecttype cmp al,openedtype jnz isntsame2 call errormessage1 ret isntsame2: call checkobjectsize cmp al,0 jz sizeok2 ret sizeok2: mov ah,objecttype mov al,itemframe push ax call findopenpos mov ax,[es:bx] mov itemframe,al mov objecttype,ah cmp ah,4 jnz makeswapex call geteitherad mov byte ptr [es:bx+2],20 mov byte ptr [es:bx+3],255 jmp actuallyswap makeswapex: call transfertoex mov itemframe,al mov objecttype,4 call geteitherad mov byte ptr [es:bx+2],20 mov byte ptr [es:bx+3],255 actuallyswap: mov bl,itemframe mov bh,objecttype pop ax mov objecttype,ah mov itemframe,al push bx call findopenpos call geteitherad mov al,openedtype mov byte ptr [es:bx+2],al mov al,openedob mov byte ptr [es:bx+3],al mov al,lastinvpos mov [es:bx+4],al mov al,reallocation mov [es:bx+5],al pop ax mov objecttype,ah mov itemframe,al call fillopen call fillryan call undertextline call readmouse call useopened call showpointer call worktoscreen call delpointer ret endp Intoinv proc near cmp pickup,0 jnz notout call outofinv ret notout: call findinvpos mov ax,[es:bx] cmp al,255 jz canplace1 call swapwithinv ret canplace1: mov al,itemframe mov ah,objecttype cmp ax,oldsubject jnz difsub1 cmp commandtype,220 jz alreadyplce mov commandtype,220 difsub1: mov oldsubject,ax mov bx,ax mov al,35 call commandwithob alreadyplce: mov ax,mousebutton cmp ax,oldbutton jz notletgo2 and ax,1 jnz doplace notletgo2: ret doplace: call delpointer mov al,itemframe call getexad mov byte ptr [es:bx+2],4 mov byte ptr [es:bx+3],255 mov al,lastinvpos mov [es:bx+4],al mov pickup,0 call fillryan call readmouse call showpointer call outofinv call worktoscreen call delpointer ret endp Deletetaken proc near ;gets rid of objects that were ;transfered to exlist ages ago mov es,freedat mov ah,reallocation mov ds,extras mov si,exdata mov cx,numexobjects takenloop: mov al,[si+11] cmp al,ah jnz notinhere mov bl,[si+1] mov bh,0 add bx,bx add bx,bx add bx,bx add bx,bx mov byte ptr [es:bx+2],254 ; was 255 notinhere: add si,16 loop takenloop ret endp Outofinv proc near call findinvpos mov ax,[es:bx] cmp al,255 jnz canpick2 call blank ret canpick2: mov bx,mousebutton cmp bx,2 jnz canpick2a call reexfrominv ret canpick2a: cmp ax,oldsubject jnz difsub3 cmp commandtype,221 jz alreadygrab mov commandtype,221 difsub3: mov oldsubject,ax mov bx,ax mov al,36 call commandwithob alreadygrab: mov ax,mousebutton cmp ax,oldbutton jz notletgo and ax,1 jnz dograb notletgo: ret dograb: call delpointer mov pickup,1 call findinvpos mov ax,[es:bx] mov itemframe,al mov objecttype,ah call getexad mov byte ptr [es:bx+2],20 ; means unplaced object mov byte ptr [es:bx+3],255 call fillryan call readmouse call showpointer call intoinv call worktoscreen call delpointer ret endp Getfreead proc near mov ah,0 mov cl,4 shl ax,cl mov bx,ax mov es,freedat ret endp Getexad proc near mov ah,0 mov bx,16 mul bx mov bx,ax mov es,extras add bx,exdata ret endp Geteitherad proc near cmp objecttype,4 jz isinexlist mov al,itemframe call getfreead ret isinexlist: mov al,itemframe call getexad ret endp Getanyad proc near ;nearly same as above ;but uses command cmp objecttype,4 jz isex cmp objecttype,2 jz isfree mov al,command call getsetad mov ax,[es:bx+4] ret isfree: mov al,command call getfreead mov ax,[es:bx+7] ret isex: mov al,command call getexad mov ax,[es:bx+7] ret endp Getanyaddir proc near ;nearly same as above ;but uses ax cmp ah,4 jz isex3 cmp ah,2 jz isfree3 call getsetad ret isfree3: call getfreead ret isex3: call getexad ret endp Getopenedsize proc near ;nearly same as above again ;but finds ad of opened ob cmp openedtype,4 jz isex2 cmp openedtype,2 jz isfree2 mov al,openedob call getsetad mov ax,[es:bx+3] ret isfree2: mov al,openedob call getfreead mov ax,[es:bx+7] ret isex2: mov al,openedob call getexad mov ax,[es:bx+7] ret endp Getsetad proc near mov ah,0 mov bx,64 mul bx mov bx,ax mov es,setdat ret endp Findinvpos proc near mov cx,mousex sub cx,inventx mov bx,-1 findinv1: inc bx sub cx,itempicsize jnc findinv1 mov cx,mousey sub cx,inventy sub bx,5 findinv2: add bx,5 sub cx,itempicsize jnc findinv2 mov al,ryanpage mov ah,0 mov cx,10 mul cx add bx,ax mov al,bl mov lastinvpos,al add bx,bx mov es,buffers add bx,ryaninvlist ret endp Findopenpos proc near mov cx,mousex sub cx,inventx mov bx,-1 findopenp1: inc bx sub cx,itempicsize jnc findopenp1 mov al,bl mov lastinvpos,al add bx,bx mov es,buffers add bx,openinvlist ret endp ;--------------------------------------------------------Dropping an object---- Dropobject proc near cmp commandtype,223 jz alreadydrop mov commandtype,223 cmp pickup,0 jz blank mov bl,itemframe mov bh,objecttype mov al,37 call commandwithob alreadydrop: mov ax,mousebutton cmp ax,oldbutton jz nodrop and ax,1 jnz dodrop nodrop: ret dodrop: call geteitherad call isitworn jnz nowornerror call wornerror ret nowornerror: cmp reallocation,47 jz nodrop2 mov cl,ryanx add cl,12 mov ch,ryany add ch,12 call checkone cmp cl,2 jc nodroperror nodrop2: call droperror ret nodroperror: cmp mapxsize,64 jnz notinlift cmp mapysize,64 jnz notinlift call droperror ret notinlift: mov al,itemframe mov ah,4 mov cl,"G" mov ch,"U" mov dl,"N" mov dh,"A" call compare jz cantdrop mov al,itemframe mov ah,4 mov cl,"S" mov ch,"H" mov dl,"L" mov dh,"D" call compare jz cantdrop mov objecttype,4 mov al,itemframe call getexad mov byte ptr [es:bx+2],0 mov al,ryanx add al,4 mov cl,4 shr al,cl add al,mapx mov ah,ryany add ah,8 mov cl,4 shr ah,cl add ah,mapy mov byte ptr [es:bx+3],al mov byte ptr [es:bx+5],ah mov al,ryanx add al,4 and al,15 mov ah,ryany add ah,8 and ah,15 mov byte ptr [es:bx+4],al mov byte ptr [es:bx+6],ah mov pickup,0 mov al,reallocation mov [es:bx],al ret endp Droperror proc near mov commandtype,255 call delpointer mov di,76 mov bx,21 mov al,56 mov dl,240 call printmessage call worktoscreenm mov cx,50 call hangonp call showpanel call showman call examicon mov commandtype,255 call worktoscreenm ret endp Cantdrop proc near mov commandtype,255 call delpointer mov di,76 mov bx,21 mov al,24 mov dl,240 call printmessage call worktoscreenm mov cx,50 call hangonp call showpanel call showman call examicon mov commandtype,255 call worktoscreenm ret endp Wornerror proc near mov commandtype,255 call delpointer mov di,76 mov bx,21 mov al,57 mov dl,240 call printmessage call worktoscreenm mov cx,50 call hangonp call showpanel call showman call examicon mov commandtype,255 call worktoscreenm ret endp Removeobfrominv proc near cmp command,100 jz obnotexist call getanyad mov di,bx mov cl,command mov ch,0 call deleteexobject ;mov byte ptr [es:bx+2],0 obnotexist: ret endp ;---------------------------------------------------------Opening an object---- Selectopenob proc near mov al,command call getanyad cmp al,255 jnz canopenit1 call blank ret canopenit1: cmp commandtype,224 jz alreadyopob mov commandtype,224 mov bl,command mov bh,objecttype mov al,38 call commandwithob alreadyopob: mov ax,mousebutton cmp ax,oldbutton jz noopenob and ax,1 jnz doopenob noopenob: ret doopenob: mov al,command mov openedob,al mov al,objecttype mov openedtype,al call createpanel call showpanel call showman call examicon call showexit call openinv call openob call undertextline call readmouse call showpointer call worktoscreen call delpointer ret endp Useopened proc near cmp openedob,255 jz cannotuseopen cmp pickup,0 jnz notout2 call outofopen ret notout2: call findopenpos mov ax,[es:bx] cmp al,255 jz canplace3 call swapwithopen cannotuseopen: ret canplace3: cmp pickup,1 jz intoopen call blank ret intoopen: mov al,itemframe mov ah,objecttype cmp ax,oldsubject jnz difsub2 cmp commandtype,227 jz alreadyplc2 mov commandtype,227 difsub2: mov oldsubject,ax mov bx,ax mov al,35 call commandwithob alreadyplc2: mov ax,mousebutton cmp ax,oldbutton jz notletgo3 cmp ax,1 jz doplace2 notletgo3: ret doplace2: call geteitherad call isitworn jnz notworntoopen call wornerror ret notworntoopen: call delpointer mov al,itemframe cmp al,openedob jnz isntsame mov al,objecttype cmp al,openedtype jnz isntsame call errormessage1 ret isntsame: call checkobjectsize cmp al,0 jz sizeok1 ret sizeok1: mov pickup,0 mov al,itemframe call geteitherad mov al,openedtype mov byte ptr [es:bx+2],al mov al,openedob mov byte ptr [es:bx+3],al mov al,lastinvpos mov [es:bx+4],al mov al,reallocation mov [es:bx+5],al call fillopen call undertextline call readmouse call useopened call showpointer call worktoscreen call delpointer ret endp Errormessage1 proc near call delpointer mov di,76 mov bx,21 mov al,58 mov dl,240 call printmessage call readmouse call showpointer call worktoscreen call delpointer mov cx,50 call hangonp call showpanel call showman call examicon call readmouse call useopened call showpointer call worktoscreen call delpointer ret endp Errormessage2 proc near mov commandtype,255 call delpointer mov di,76 mov bx,21 mov al,59 mov dl,240 call printmessage call readmouse call showpointer call worktoscreen call delpointer mov cx,50 call hangonp call showpanel call showman call examicon call readmouse call useopened call showpointer call worktoscreen call delpointer ret endp Errormessage3 proc near call delpointer mov di,76 mov bx,21 mov al,60 mov dl,240 call printmessage call worktoscreenm mov cx,50 call hangonp call showpanel call showman call examicon call readmouse call useopened call showpointer call worktoscreen call delpointer ret endp Checkobjectsize proc near call getopenedsize push ax mov al,itemframe call geteitherad mov al,[es:bx+9] pop cx cmp al,255 ;gives a size of 6 if no jnz notunsized ;size was defined in the editor mov al,6 ;could be a bad idea notunsized: cmp al,100 jnc specialcase cmp cl,100 jc isntspecial call errormessage3 jmp sizewrong isntspecial: cmp cl,al jnc sizeok specialcase: sub al,100 cmp cl,100 jnc bothspecial cmp cl,al jnc sizeok call errormessage2 jmp sizewrong bothspecial: sub cl,100 cmp al,cl jz sizeok call errormessage3 sizewrong: mov al,1 ret sizeok: mov al,0 ret endp Outofopen proc near cmp openedob,255 jz cantuseopen call findopenpos mov ax,[es:bx] cmp al,255 jnz canpick4 cantuseopen: call blank ret canpick4: cmp ax,oldsubject jnz difsub4 cmp commandtype,228 jz alreadygrb mov commandtype,228 difsub4: mov oldsubject,ax mov bx,ax mov al,36 call commandwithob alreadygrb: mov ax,mousebutton cmp ax,oldbutton jz notletgo4 cmp ax,1 jz dogrb cmp ax,2 jnz notletgo4 call reexfromopen notletgo4: ret dogrb: call delpointer mov pickup,1 call findopenpos mov ax,[es:bx] mov itemframe,al mov objecttype,ah cmp ah,4 jnz makeintoex call geteitherad mov byte ptr [es:bx+2],20 ; means unplaced object mov byte ptr [es:bx+3],255 jmp actuallyout makeintoex: call transfertoex mov itemframe,al mov objecttype,4 call geteitherad mov byte ptr [es:bx+2],20 ; means it is in transit mov byte ptr [es:bx+3],255 actuallyout: call fillopen call undertextline call readmouse call useopened call showpointer call worktoscreen call delpointer ret endp ;All Extra object code - adding and removing plus purge routines ------------- Transfertoex proc near call emergencypurge call getexpos mov al,expos push ax push di mov al,itemframe mov ah,0 mov bx,16 mul bx mov ds,freedat mov si,ax mov cx,8 rep movsw pop di mov al,reallocation mov [es:di],al mov [es:di+11],al mov al,itemframe mov [es:di+1],al mov byte ptr [es:di+2],4 mov byte ptr [es:di+3],255 mov al,lastinvpos mov [es:di+4],al mov al,itemframe mov itemtotran,al call transfermap call transferinv call transfertext mov al,itemframe mov ah,0 mov bx,16 mul bx mov ds,freedat mov si,ax mov byte ptr [si+2],254 ; was 255 call pickupconts pop ax ret endp Pickupconts proc near mov al,[si+7] cmp al,255 jz notopenable mov al,itemframe mov ah,objecttype mov dl,expos ;dec dl mov es,freedat mov bx,0 mov cx,0 pickupcontloop: push cx es bx dx ax cmp byte ptr [es:bx+2],ah jnz notinsidethis cmp byte ptr [es:bx+3],al jnz notinsidethis mov itemtotran,cl call transfercontoex notinsidethis: pop ax dx bx es cx add bx,16 inc cx cmp cx,80 jnz pickupcontloop notopenable: ret endp Transfercontoex proc near push es bx push dx es bx call getexpos pop si ds push di mov cx,8 rep movsw pop di pop dx mov al,reallocation mov [es:di],al mov [es:di+11],al mov al,itemtotran mov [es:di+1],al mov [es:di+3],dl mov byte ptr [es:di+2],4 call transfermap call transferinv call transfertext ;inc expos pop si ds mov byte ptr [si+2],255 ret endp Transfertext proc near mov es,extras mov al,expos mov ah,0 add ax,ax mov bx,extextdat add bx,ax mov di,extextpos mov [es:bx],di add di,extext mov al,itemtotran mov ah,0 add ax,ax mov ds,freedesc mov bx,freetextdat add bx,ax mov si,freetext mov ax,[bx] add si,ax moretext: lodsb stosb inc extextpos cmp al,0 jnz moretext ret endp Getexpos proc near mov es,extras mov al,0 mov di,exdata tryanotherex: cmp byte ptr [es:di+2],255 jz foundnewex add di,16 inc al cmp al,numexobjects jnz tryanotherex foundnewex: mov expos,al ret endp Purgealocation proc near push ax mov es,extras mov di,exdata pop bx mov cx,0 purgeloc: cmp bl,[es:di+0] jnz dontpurge cmp byte ptr [es:di+2],0 jnz dontpurge push di es bx cx call deleteexobject pop cx bx es di dontpurge: add di,16 inc cx cmp cx,numexobjects jnz purgeloc ret endp Emergencypurge proc near checkpurgeagain: mov ax,exframepos add ax,4000 cmp ax,exframeslen jc notnearframeend call purgeanitem jmp checkpurgeagain notnearframeend: mov ax,extextpos add ax,400 cmp ax,extextlen jc notneartextend call purgeanitem jmp checkpurgeagain notneartextend: ret endp Purgeanitem proc near mov es,extras ;first time try and mov di,exdata ;find an object in a mov bl,reallocation ;location other than mov cx,0 ;the one the player is lookforpurge: mov al,[es:di+2] ;in cmp al,0 jnz cantpurge cmp byte ptr [es:di+12],2 jz iscup cmp byte ptr [es:di+12],255 jnz cantpurge iscup: cmp byte ptr [es:di+11],bl jz cantpurge call deleteexobject ret cantpurge: add di,16 inc cx cmp cx,numexobjects jnz lookforpurge mov di,exdata mov bl,reallocation mov cx,0 lookforpurge2: mov al,[es:di+2] cmp al,0 jnz cantpurge2 cmp byte ptr [es:di+12],255 jnz cantpurge2 call deleteexobject ret cantpurge2: add di,16 inc cx cmp cx,numexobjects jnz lookforpurge2 ret endp Deleteexobject proc near ;es:di holds data ad ;cx holds number push cx cx cx cx mov al,255 mov cx,16 rep stosb pop ax mov cl,al add al,al add al,cl call deleteexframe pop ax mov cl,al add al,al add al,cl inc al call deleteexframe pop ax call deleteextext pop bx mov bh,bl mov bl,4 mov di,exdata mov cx,0 deleteconts: cmp [es:di+2],bx jnz notinsideex push bx cx di call deleteexobject ;Oooh missus! pop di cx bx ;Recursive code! notinsideex: add di,16 inc cx cmp cx,numexobjects jnz deleteconts ret endp Deleteexframe proc near ;al holds frame to delete mov di,exframedata mov ah,0 add ax,ax add di,ax add ax,ax add di,ax mov al,[es:di] mov ah,0 mov cl,[es:di+1] mov ch,0 mul cx ;ax holds size of this ;frame in bytes mov si,[es:di+2] push si add si,exframes mov cx,exframeslen sub cx,[es:di+2] mov di,si ;di/si hold start of frame add si,ax ;si holds end of frame push ax push es pop ds rep movsb pop bx ;bx holds size now sub exframepos,bx pop si ;si holds start of frame ;(offset only) mov cx,numexobjects*3 mov di,exframedata shuffleadsdown: mov ax,[es:di+2] cmp ax,si jc beforethisone sub ax,bx beforethisone: mov [es:di+2],ax add di,6 loop shuffleadsdown ret endp Deleteextext proc near mov di,extextdat mov ah,0 add ax,ax add di,ax mov ax,[es:di] mov si,ax mov di,ax add si,extext add di,extext mov ax,0 findlenextext: mov cl,[es:si] inc ax inc si cmp cl,0 jnz findlenextext mov cx,extextlen mov bx,si sub bx,extext push bx ax sub cx,bx rep movsb pop bx sub extextpos,bx pop si mov cx,numexobjects mov di,extextdat shuffletextads: mov ax,[es:di] cmp ax,si jc beforethistext sub ax,bx beforethistext: mov [es:di],ax add di,2 loop shuffletextads ret endp