Gameboy Development Forum

Yeah, you have to include your project in the engine, (not the engine in your project), github tutorial is very good.

Alexander the bat wrote:

Mills wrote:

Yeah, you have to include your project in the engine, (not the engine in your project), github tutorial is very good.

could linking a main.c to it work too if i used the engine? or it has to be writting in the engine's main?

You have to create an empty "state" (like the ones included in the template) declare it in main etc...

Then you have to include your program inside state functions (start, update), and replace loading functions (bkg, sprites, tiles...) with the zgb ones.

Alexander the bat wrote:

what about a Color Version of the game I planned to work on like a oh let's say a 256KB colored gameboy game of some sort?

I added color functions to the engine, still has some bugs, you can check ZGB thread, I posted the demo uisng color.

Hello Everyone

I need help doing the Enemy chapter in the ZGB tutorial in github. So far I desgined the enemy. After that I got stuck so anyone wants to help me ?
However I done all previous chapters ?

Zalo wrote:

What bugs are you talking about?

The background animations use too much ram.. They will sometimes overwrite the carillon player variables if you add 6 or 7 animations in color mode... Anyway gameboy only can use 2 or 3 at the same time, and you can recicle the same animations and reload them with different data, so I think there should be no problems.

This is the code put in ZGBMain.c

#include "ZGBMain.h"

#include "StateGame.h"

#include "SpritePlayer.h"

#include "../res/src/player.h"

#Include "SpriteEnemy.h"

#Include "../res/src/enemy.h"

UINT8 next_state = STATE_GAME;

SET_N_STATES(N_STATES);
SET_N_SPRITE_TYPES(N_SPRITE_TYPES);

void InitStates() {
    INIT_STATE(STATE_GAME);
}

void InitSprites() {
    INIT_SPRITE(SPRITE_PLAYER, player, 3, FRAME_16x16, 3);
}

void InitSprites() {
    ...
    INIT_SPRITE(SPRITE_ENEMY,  enemy,  3, FRAME_16x16, 1);
}

#include "Math.h"
UINT8 GetTileReplacement(UINT8* tile_ptr, UINT8* tile) {
    if(current_state == STATE_GAME) {
        if(U_LESS_THAN(255 - (UINT16)*tile_ptr, N_SPRITE_TYPES)) {
            *tile = 0;
            return 255 - (UINT16)*tile_ptr;
        }

        *tile = *tile_ptr;
    }

    return 255u;
}

This tutorial part I am up to in the ememy section

void Start_STATE_GAME() {
    ...
    SpriteManagerAdd(SPRITE_ENEMY, 70, 50);
}

What does "... " Mean ?

Last edited by npzman (2017-04-08 02:27:07)

Mills wrote:

The background animations use too much ram.. They will sometimes overwrite the carillon player variables if you add 6 or 7 animations in color mode... Anyway gameboy only can use 2 or 3 at the same time, and you can recicle the same animations and reload them with different data, so I think there should be no problems.

Ok... I'll see what I can do... I am not sure this is an engine feature but more a game specific one so I am not sure I am going to include them on the core (similar to why I didn't include any of the screen transition functions that I use in Super Princess). Remember the compiler doesn't remove unused functions and we need to make sure only the important ones are available on the core

Also, I see carrillon player has only been implemented for Game Boy Color, is this a limitation of the player?

Does anyone have the resources to put a video tutorial for ZGB that's shows the installation and the tutorial from ZGB github page.