Code snippet: Fake mode 7 - Mario kart

Author

Message

Cliff Mellangard 3DEGS

Developer

18

Years of Service

User Offline

Joined: 20th Feb 2006

Location: Sweden

Posted: 21st Nov 2011 00:29 Edited at: 21st Nov 2011 21:56

Link

all the files you nead is here!

I roughly cut pieces out of my raycaster so there could be some buggs

Edited.............................

Ok!
I have made 2 versions now of the get pixel function.

They explain them self!

////////////////////////////////
// used to get pixel on floor //
////////////////////////////////
function Get_Pixel_Centered( x as integer , y as integer , Scale as integer )
    // converts it to an grid grid nr
    X1 = (x+1) / (Scale)
    Y1 = (y+1) / (Scale)
    // converts it to an world position
    X2 = ( X1 * ( Scale ) )
    Y2 = ( Y1 * ( Scale ) )
    // here do we get an pixel cord inside that tile
    X3 =  ( x - X2 ) 
    Y3 =  ( y - Y2 ) 
    // Calculate it to an sprite frame
    if X3 < Y3 then result = ( X3 + ( Y3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
    if X3 > Y3 then result = ( Y3 + ( X3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
ENDFUNCTION result

function Get_Pixel_Grid( x as integer , y as integer , Scale as integer )
    // converts it to an grid grid nr
    x=x+(Scale/2)
    y=y+(Scale/2)
    X1=x/Scale
    Y1=y/Scale
    // converts it to an world position
    X2=(X1*(Scale))-(Scale/2)
    Y2=(Y1*(Scale))-(Scale/2)

// here do we get an pixel cord inside that tile
    X3=( (x-X2) - (Scale/2) )
    Y3=( (y-Y2) - (Scale/2) )

// Calculate it to an sprite frame
    if X3 < Y3 then result = ( X3 + ( Y3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
    if X3 > Y3 then result = ( Y3 + ( X3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
ENDFUNCTION result

+ Code Snippet

////////////////////////////////
// used to get pixel on floor //
////////////////////////////////
function Get_Pixel_Centered( x as integer , y as integer , Scale as integer )
    // converts it to an grid grid nr
    X1 = (x+1) / (Scale)
    Y1 = (y+1) / (Scale)
    // converts it to an world position
    X2 = ( X1 * ( Scale ) )
    Y2 = ( Y1 * ( Scale ) )
    // here do we get an pixel cord inside that tile
    X3 =  ( x - X2 ) 
    Y3 =  ( y - Y2 ) 
    // Calculate it to an sprite frame
    if X3 < Y3 then result = ( X3 + ( Y3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
    if X3 > Y3 then result = ( Y3 + ( X3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
ENDFUNCTION result

function Get_Pixel_Grid( x as integer , y as integer , Scale as integer )
    // converts it to an grid grid nr
    x=x+(Scale/2)
    y=y+(Scale/2)
    X1=x/Scale
    Y1=y/Scale
    // converts it to an world position
    X2=(X1*(Scale))-(Scale/2)
    Y2=(Y1*(Scale))-(Scale/2)

    // here do we get an pixel cord inside that tile
    X3=( (x-X2) - (Scale/2) )
    Y3=( (y-Y2) - (Scale/2) )

    // Calculate it to an sprite frame
    if X3 < Y3 then result = ( X3 + ( Y3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
    if X3 > Y3 then result = ( Y3 + ( X3 * ( Scale + 1 ) ) ) - ( Scale + 1 )
ENDFUNCTION result

Attachments

Login to view attachments

Back to top

Profile PM Website

DVader

20

Years of Service

User Offline

Joined: 28th Jan 2004

Location:

Posted: 21st Nov 2011 02:53

Link

Nice! I will check this out and report back! I like all your 3d work so far. it boggles my mind, but I like it.

Back to top

Profile PM Website

Mobiius

Valued Member

21

Years of Service

User Offline

Joined: 27th Feb 2003

Location: The Cold North

Posted: 21st Nov 2011 11:19

Link

Nice.

My signature is NOT a moderator plaything! Stop changing it!

Back to top

Profile PM Email Website

Cliff Mellangard 3DEGS

Developer

18

Years of Service

User Offline

Joined: 20th Feb 2006

Location: Sweden

Posted: 21st Nov 2011 16:55

Link

Quote: "Nice! I will check this out and report back! I like all your 3d work so far. it boggles my mind, but I like it."

Quote: "Nice."

Thanks!
I will try to add small snippets on how you add other colours and textures later on .
also how yoy raise the ground for hills and stuff.

Also pay attention on this command !
RENDER_Ground( LowRes , MinPixel , Floor_Step# , View_Depth)
These 2 affect how the texture looks and performance

Low res is the number of lines it skips when drawing.
Floor_Step# is the distance the ray travels before checking the ground.

Min pixel is supposed to skip lines under this size but i seam to have removed it when moving the files to the snippet

Now back to the raycaster that bothers me with alot of problems

Back to top

Profile PM Website

Sorry your browser is not supported!

AppGameKit Classic Chat / Code snippet: Fake mode 7 - Mario kart

Attachments