.data
CityBuilding3D STRUCT
    minX dd ?
    maxX dd ?
    minY dd ?
    maxY dd ?
    roofZ dd ?
    material dd ?
CityBuilding3D ENDS
CITY_DISTANT_BUILDINGS equ 23
citySkyline3D CityBuilding3D <33*FP_1,42*FP_1,-2*FP_1,11*FP_1,7*FP_1,65>
    CityBuilding3D <46*FP_1,56*FP_1,-1*FP_1,11*FP_1,9*FP_1,66>
    CityBuilding3D <33*FP_1,42*FP_1,17*FP_1,27*FP_1,8*FP_1,67>
    CityBuilding3D <46*FP_1,56*FP_1,17*FP_1,28*FP_1,7*FP_1,65>
    CityBuilding3D <46*FP_1,56*FP_1,31*FP_1,40*FP_1,12*FP_1,66>
    CityBuilding3D <3*FP_1,7*FP_1,35*FP_1,39*FP_1,12*FP_1,67>
    CityBuilding3D <11*FP_1,17*FP_1,38*FP_1,44*FP_1,21*FP_1,65>
    CityBuilding3D <20*FP_1,25*FP_1,36*FP_1,40*FP_1,10*FP_1,66>
    CityBuilding3D <-10*FP_1,-6*FP_1,18*FP_1,23*FP_1,13*FP_1,67>
    CityBuilding3D <-15*FP_1,-11*FP_1,7*FP_1,12*FP_1,17*FP_1,66>
    CityBuilding3D <-7*FP_1,-3*FP_1,1*FP_1,5*FP_1,9*FP_1,65>
    CityBuilding3D <4*FP_1,9*FP_1,-9*FP_1,-5*FP_1,12*FP_1,66>
    CityBuilding3D <15*FP_1,19*FP_1,-14*FP_1,-10*FP_1,18*FP_1,67>
    CityBuilding3D <27*FP_1,31*FP_1,-8*FP_1,-4*FP_1,10*FP_1,65>
    CityBuilding3D <59*FP_1,68*FP_1,17*FP_1,29*FP_1,10*FP_1,66>
    CityBuilding3D <46*FP_1,56*FP_1,-13*FP_1,-5*FP_1,17*FP_1,67>
    CityBuilding3D <71*FP_1,82*FP_1,17*FP_1,30*FP_1,12*FP_1,65>
    CityBuilding3D <59*FP_1,68*FP_1,-12*FP_1,11*FP_1,11*FP_1,66>
    CityBuilding3D <33*FP_1,42*FP_1,-18*FP_1,-5*FP_1,16*FP_1,65>
    CityBuilding3D <33*FP_1,42*FP_1,31*FP_1,42*FP_1,14*FP_1,66>
    CityBuilding3D <71*FP_1,82*FP_1,-20*FP_1,11*FP_1,14*FP_1,67>
    CityBuilding3D <59*FP_1,68*FP_1,32*FP_1,44*FP_1,17*FP_1,65>
    CityBuilding3D <85*FP_1,96*FP_1,18*FP_1,42*FP_1,22*FP_1,66>
.code

; A second world-space district is drawn before foreground walls, with its own depth.
DrawCitySkyline3D PROC uses ebx esi edi
    lea edi, cityDepthBuffer3D
    mov eax, 7FFFFFFFh
    mov ecx, SCREEN_SIZE
    rep stosd
    call PrepareCityRays3D
    mov cityBackdrop3D, 1
    lea esi, citySkyline3D
    mov ebx, CITY_DISTANT_BUILDINGS
city_skyline_building:
    invoke DrawCityBoxSides3D, [esi].CityBuilding3D.minX,[esi].CityBuilding3D.maxX,[esi].CityBuilding3D.minY,[esi].CityBuilding3D.maxY,0,[esi].CityBuilding3D.roofZ,[esi].CityBuilding3D.material
    add esi, SIZEOF CityBuilding3D
    dec ebx
    jnz city_skyline_building
    mov cityBackdrop3D, 0
    ret
DrawCitySkyline3D ENDP