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Animated mode 7 planes

BreadCaster - 7-3-2019 at 11:01 AM

Hi there everyone!

Im starting a new project utilizing mode 7 to make a side on/top down ish (think Golden Axe style) driving game.

Ive written a custom scroll process so I can have multiple layers of parralax scrolling, dynamically updatin a graphic set in GLOBAL memory - I want to be able to use this to simulate a rolling road effect, by setting it as the graphic for the mode 7 plane.

My question is simple - is this possible? I mean to have an animating mode 7 plane. Im fairly sure it is but Id like to have confirmation before i start tearing my hair out trying to get this method to work :lol:

Thanks all!!

BC

dom cook - 7-3-2019 at 11:28 AM

YES.

CicTec - 7-3-2019 at 11:47 AM

Hi Breadcaster,

Yes, basically you can animate the mode7 plan in many ways, the simplest is simply to perform a MAP_PUT in the zones of the mode7 graph that you want to animate and these will be automatically displayed in the new rendering.

[Edited on 7-3-2019 by CicTec]

BreadCaster - 7-3-2019 at 01:23 PM

Fantastic! Thanks Dom, thanks Cictec. Will share screenshots when theres anything worth sharing :p

BreadCaster - 10-3-2019 at 10:07 AM

Hm, mode 7 related - is there anyone who has any experience with the horizon variable in mode 7? Ive created a quick program to adjust it (m7[0].horizon+=100 when a key is pressed, and its also written to the screen) and for some reason it doesnt make any difference to the mode 7 plane. Am I doing something wrong? :/

dom cook - 10-3-2019 at 03:55 PM

Hi Bread,
If you download the m7 view setup prog from the code snippets you can see the horizon thing working.

Note. If you try to run the prg as it is you'll get an error. That's because it tries to read a file to get its mode 7 settings. If you comment out the code that does this it will work fine. The prg allows you to set up a desired view visually then it will save the settings to a file which you can read with the previously mention code segment

[Edited on 10-3-2019 by dom cook]

CicTec - 13-3-2019 at 08:17 AM

Quote: Originally posted by BreadCaster

Hm, mode 7 related - is there anyone who has any experience with the horizon variable in mode 7? Ive created a quick program to adjust it (m7[0].horizon+=100 when a key is pressed, and its also written to the screen) and for some reason it doesnt make any difference to the mode 7 plane. Am I doing something wrong? :/

Hi Breadcaster,

Sorry for the delay...

You can upload this quick program to test what doesn't work?

BreadCaster - 14-3-2019 at 12:21 PM

Code:


Program testmodeseven;

GLOBAL

fpg_test;
color;

BEGIN

    set_mode(m800x600);
    set_fps(30,0);
    
    fpg_test=load_fpg("test.fpg");

    put_screen(fpg_test, 1);

    start_mode7(0, fpg_test, 2, -1, 0, 0);
    
    m7[0].color=10;
    m7[0].camera=id; 
    m7[0].distance=20;                       
    m7[0].height=165;
    
    m7[0].focus=900;


    ctype=c_m7;


    resolution=100;

    angle=90000;

    x=36150;
    y=107425;
    

    write(0 ,20,30,3,"Mode 7 test demo"); 
    
    write(0 ,20,50,3,"Current settings:"); 
    write(0 ,20,60,3,"Height:");
    write_int(0 ,80,60,3, &m7[0].height);
    write(0 ,20,70,3,"Horizon:");
    write_int(0 ,80,70,3, &m7[0].horizon);
    write(0 ,20,80,3,"Focus:");
    write_int(0 ,80,80,3, &m7[0].focus);
    write(0 ,20,90,3,"X and Y:");
    write_int(0 ,80,90,3, &X);
    write_int(0 ,150,90,3 &y);

    write_int(0 ,80,100,3, &angle);

    write(0 ,20,70+50,3,"W S A D to steer"); 
    write(0 ,20,80+50,3,"Up and down arrows to adjust height"); 
    write(0 ,20,90+50,3,"Y and H to adjust horizon");     
    write(0 ,20,100+50,3,"I and K to adjust focus"); 
    
    
    WHILE (NOT key(_esc))
        
        IF (key(_w));
           advance(250); 
        END       
        IF (key(_s));
           advance(-250); 
        END
        

        IF (key(_a));
           angle+=5000; 
        END
        IF (key(_d));
           angle-=5000; 
        END

        If (key(_up));
           m7[0].height+=5;
        End
        If (key(_down));
           m7[0].height-=5;
        End       
 
        If (key(_Y));
           m7[0].horizon+=100;
        End
        If (key(_H));
           m7[0].horizon-=100;
        End        

        If (key(_I));
           m7[0].focus+=5;
        End
        If (key(_K));
           m7[0].focus-=5;
        End        

        
        FRAME;
    END
    
    stop_mode7(0);
    let_me_alone();
END

[Edited on 14-3-2019 by BreadCaster]

CicTec - 14-3-2019 at 01:26 PM

And the asset test.fpg ?

BreadCaster - 14-3-2019 at 07:44 PM

here it is

Attachment: test.fpg (1.5MB)
This file has been downloaded 899 times

CicTec - 14-3-2019 at 09:06 PM

I've tried the test,

Is present an error on the START_MODE function, the parameter 4 must be 0 not -1, change it and your program should be work as espected.