diff options
Diffstat (limited to 'devtools/tasmrecover/dreamweb/backdrop.asm')
| -rw-r--r-- | devtools/tasmrecover/dreamweb/backdrop.asm | 876 |
1 files changed, 876 insertions, 0 deletions
diff --git a/devtools/tasmrecover/dreamweb/backdrop.asm b/devtools/tasmrecover/dreamweb/backdrop.asm new file mode 100644 index 0000000000..5dfe20bf5d --- /dev/null +++ b/devtools/tasmrecover/dreamweb/backdrop.asm @@ -0,0 +1,876 @@ +;Copyright (c) 1990-2011 by Neil Dodwell +;Released with permission from Neil Dodwell under GPLv2 +;See LICENSE file for full license text +;----------------------------------------------Code to draw floor and panel---- + +Blockget proc near + + mov ah,al + mov al,0 + mov ds,backdrop + mov si,blocks + add si,ax + ret + + endp + + + + + + + + + + + + + + + + +;--------------------------------------------------------Background display---- + + + + + + + + +Drawfloor proc near + + push es bx ;in case this was called during + call eraseoldobs ;some sprite update. + call drawflags + call calcmapad + call doblocks + call showallobs + call showallfree + call showallex + call paneltomap + call initrain + mov newobs,0 + pop bx es + ret + + endp + + + + + + + + + + + + + + + + + + +Calcmapad proc near + + call getdimension + + push cx dx + + mov al,11 + sub al,dl + sub al,cl + sub al,cl + cbw + mov bx,8 + mul bx + add ax,mapoffsetx + mov mapadx,ax + pop dx cx + + mov al,10 + sub al,dh + sub al,ch + sub al,ch + cbw + mov bx,8 + mul bx + add ax,mapoffsety + mov mapady,ax + ret + + endp + + + + + + + + + +Getdimension proc near ;Routine finds width, length + ;and top corner of room + + mov es,buffers + mov bx,mapflags + mov ch,0 +dimloop1: call addalong + cmp al,0 + jnz finishdim1 + inc ch + jmp dimloop1 ;ch holds y of top corner + +finishdim1: mov bx,mapflags + mov cl,0 +dimloop2: push bx + call addlength + pop bx + cmp al,0 + jnz finishdim2 + inc cl + add bx,3 + jmp dimloop2 ;cl holds x of top corner + +finishdim2: mov bx,mapflags+(11*3*9) + mov dh,10 +dimloop3: push bx + call addalong + pop bx + cmp al,0 + jnz finishdim3 + dec dh + sub bx,11*3 + jmp dimloop3 ;dh holds y of bottom corner + +finishdim3: mov bx,mapflags+(3*10) + mov dl,11 +dimloop4: push bx + call addlength + pop bx + cmp al,0 + jnz finishdim4 + dec dl + sub bx,3 + jmp dimloop4 ;dl holds x of bottom corner + +finishdim4: mov al,cl ;cl holds x start + mov ah,0 + shl ax,1 + shl ax,1 + shl ax,1 + shl ax,1 + mov mapxstart,ax + mov al,ch ;ch holds y start + mov ah,0 + shl ax,1 + shl ax,1 + shl ax,1 + shl ax,1 + mov mapystart,ax + + sub dl,cl + sub dh,ch + ;dx holds x and y size of room + mov al,dl ;dl holds x size + mov ah,0 + shl ax,1 + shl ax,1 + shl ax,1 + shl ax,1 + mov mapxsize,al + mov al,dh ;dh holds y size + mov ah,0 + shl ax,1 + shl ax,1 + shl ax,1 + shl ax,1 + mov mapysize,al ;cx still holds top left corner + ret + + endp + + + + + + + + + + + + +Addalong proc near + + mov ah,11 +addloop: cmp byte ptr [es:bx],0 + jnz gotalong + add bx,3 + dec ah + jnz addloop + mov al,0 + ret +gotalong: mov al,1 + ret + + endp + + + + + +Addlength proc near + + mov ah,10 +addloop2: cmp byte ptr [es:bx],0 + jnz gotlength + add bx,3*11 + dec ah + jnz addloop2 + mov al,0 + ret +gotlength: mov al,1 + ret + + endp + + + + + + + + + + + + + + + + + + + + +Drawflags proc near + + mov es,buffers + mov di,mapflags + mov al,mapy + mov ah,0 + mov cx,mapwidth + mul cx + mov bl,mapx + mov bh,0 + add ax,bx + mov si,map + add si,ax + + mov cx,10 +$28: push cx + mov cx,11 +$28a: mov ds,mapdata + lodsb + mov ds,backdrop + push si ax + mov ah,0 + add ax,ax + mov si,flags + add si,ax + movsw + pop ax + stosb + pop si + loop $28a + add si,mapwidth-11 + pop cx + loop $28 + ret + + endp + + + + + + + + + + + + + + +;-------------------------------------------------------Set object printing---- + +Eraseoldobs proc near + + cmp newobs,0 + jz donterase + + mov es,buffers + mov bx,spritetable + + mov cx,16 +oberase: push cx bx + mov ax,[es:bx+20] + cmp ax,0ffffh + jz notthisob + mov di,bx + mov al,255 + mov cx,tablesize + rep stosb +notthisob: pop bx cx + add bx,tablesize + loop oberase + +donterase: ret + + endp + + + + + + + + + + + + + + + + + + + + +Showallobs proc near + + mov es,buffers + mov bx,setlist + mov listpos,bx + mov di,bx + mov cx,128*5 + mov al,255 + rep stosb + + mov es,setframes + mov frsegment,es + mov ax,framedata + mov dataad,ax + mov ax,frames + mov framesad,ax + mov currentob,0 + + mov ds,setdat + mov si,0 + + mov cx,128 +showobsloop: push cx si + + push si + add si,58 + mov es,setdat + call getmapad + pop si + cmp ch,0 + jz blankframe + + mov al,[es:si+18] + mov ah,0 + mov currentframe,ax + cmp al,255 + jz blankframe + + push es si + call calcfrframe + call finalframe + pop si es + + mov al,[es:si+18] + mov [es:si+17],al + cmp byte ptr [es:si+8],0 + jnz animating + cmp byte ptr [es:si+5],5 + jz animating + cmp byte ptr [es:si+5],6 + jz animating + mov ax,currentframe + mov ah,0 + add di,mapadx + add bx,mapady + call showframe + jmp drawnsetob + +animating: call makebackob + +drawnsetob: mov si,listpos + mov es,buffers + mov al,savex + mov ah,savey + mov [es:si],ax + mov cx,ax + mov ax,savesize + add al,cl + add ah,ch + mov [es:si+2],ax + mov al,currentob + mov [es:si+4],al + add si,5 + mov listpos,si + +blankframe: inc currentob + pop si cx + add si,64 + dec cx + jz finishedsetobs + jmp showobsloop + +finishedsetobs: ret + + endp + + + + + + + + + + + + + + +Makebackob proc near + + cmp newobs,0 + jz nomake + + mov al,[es:si+5] ; priority + mov ah,[es:si+8] ; type - steady, constant,random,door etc. + push si ax si + mov ax,objectx + mov bx,objecty + mov ah,bl + mov si,ax + mov cx,offset cs:backobject + mov dx,setframes + mov di,framedata + call makesprite + pop ax + mov [es:bx+20],ax + pop ax + cmp al,255 + jnz usedpriority ; forgotten to specify priority + mov al,0 +usedpriority: mov [es:bx+23],al + mov [es:bx+30],ah + mov byte ptr [es:bx+16],0 + mov byte ptr [es:bx+18],0 + mov byte ptr [es:bx+19],0 + pop si +nomake: ret + + endp + + + + +;------------------------------------------------------Free object printing---- + +Showallfree proc near + + mov es,buffers + mov bx,freelist + mov listpos,bx + mov di,freelist + mov cx,80*5 + mov al,255 + rep stosb + + mov es,freeframes + mov frsegment,es + mov ax,frframedata + mov dataad,ax + mov ax,frframes + mov framesad,ax + mov al,0 + mov currentfree,al + + mov ds,freedat + mov si,2 + + mov cx,0 +loop127: push cx si + + push si + mov es,freedat + call getmapad + pop si + cmp ch,0 + jz over138 + + mov al,currentfree + mov ah,0 + mov dx,ax + add ax,ax + add ax,dx + mov currentframe,ax + + push es si + call calcfrframe + mov es,mapstore + mov ds,frsegment + call finalframe + pop si es + cmp cx,0 + jz over138 + + mov ax,currentframe + mov ah,0 + add di,mapadx + add bx,mapady + call showframe + mov si,listpos + mov es,buffers + mov al,savex + mov ah,savey + mov [es:si],ax + mov cx,ax + mov ax,savesize + add al,cl + add ah,ch + mov [es:si+2],ax + pop ax cx + push cx ax + mov [es:si+4],cl + add si,5 + mov listpos,si + +over138: inc currentfree + pop si cx + add si,16 + inc cx + cmp cx,80 + jz finfree + jmp loop127 + +finfree: ret + + endp + + + + + + + + + + + + +Showallex proc near + + mov es,buffers + mov bx,exlist + mov listpos,bx + mov di,exlist + mov cx,100*5 + mov al,255 + rep stosb + + mov es,extras + mov frsegment,es + mov ax,exframedata + mov dataad,ax + mov ax,exframes + mov framesad,ax + mov currentex,0 + + mov si,exdata+2 + + mov cx,0 +exloop: push cx si + + mov es,extras + + push si + mov ch,0 + cmp byte ptr [es:si],255 + jz notinroom + mov al,[es:si-2] + cmp al,reallocation + jnz notinroom + call getmapad +notinroom: pop si + cmp ch,0 + jz blankex + + mov al,currentex + mov ah,0 + mov dx,ax + add ax,ax + add ax,dx + mov currentframe,ax + + push es si + call calcfrframe + mov es,mapstore + mov ds,frsegment + call finalframe + pop si es + cmp cx,0 + jz blankex + + mov ax,currentframe + mov ah,0 + add di,mapadx + add bx,mapady + call showframe + mov si,listpos + mov es,buffers + mov al,savex + mov ah,savey + mov [es:si],ax + mov cx,ax + mov ax,savesize + add al,cl + add ah,ch + mov [es:si+2],ax + pop ax cx + push cx ax + mov [es:si+4],cl + add si,5 + mov listpos,si + +blankex: inc currentex + pop si cx + add si,16 + inc cx + cmp cx,100 + jz finex + jmp exloop + +finex: ret + + endp + + + + + + + +Calcfrframe proc near + + mov dx,frsegment + mov ax,framesad + push ax + mov cx,dataad + mov ax,currentframe + mov ds,dx + mov bx,6 + mul bx + add ax,cx + mov bx,ax + mov cx,[bx] + mov ax,[bx+2] + mov dx,[bx+4] + pop bx + push dx + add ax,bx ;ax=source add, cx=x,y + ;need this later + mov savesource,ax + mov savesize,cx + pop ax + push ax + mov ah,0 + mov offsetx,ax + pop ax + mov al,ah + mov ah,0 + mov offsety,ax + ret +nullframe: pop ax + mov cx,0 + mov savesize,cx + ret + + endp + + + + + + + + + + + + + + + + + + +Finalframe proc near + + mov ax,objecty + add ax,offsety + mov bx,objectx + add bx,offsetx + mov savex,bl + mov savey,al + mov di,objectx + mov bx,objecty + ret + + endp + + + + + + + + + + + + + +Adjustlen proc near + + mov ah,al + add al,ch + cmp al,100 + jc over242 + mov al,224 + sub al,ch + mov ch,al +over242: ret + + endp + + + + + + + + + +Getmapad proc near + + call getxad + cmp ch,0 + jz over146 + mov objectx,ax + call getyad + cmp ch,0 + jz over146 + mov objecty,ax + mov ch,1 +over146: ret + + endp + + + + + + + + + +Getxad proc near + + mov cl,[es:si] + inc si + mov al,[es:si] + inc si + mov ah,[es:si] + inc si + cmp cl,0 + jnz over148 + sub al,mapx + jc over148 + cmp al,11 + jnc over148 + mov cl,4 + shl al,cl + or al,ah + mov ah,0 + mov ch,1 + ret +over148: mov ch,0 + ret + + endp + + + + + + + + + +Getyad proc near + + mov al,[es:si] + inc si + mov ah,[es:si] + inc si + sub al,mapy + jc over147 + cmp al,10 + jnc over147 + mov cl,4 + shl al,cl + or al,ah + mov ah,0 + mov ch,1 + ret + +over147: mov ch,0 + ret + + endp + + + + + + + + + + + + + + + + + + + + + + + + |