let bSpell = false;
let frameInvisible = 0;
let GCSD = GetCurrentScriptDirectory();

@Initialize{
    TCallBg;
}

@MainLoop{
    let objScene=GetEnemyBossSceneObjectID();
    if(objScene!=ID_INVALID&&ObjEnemyBossScene_GetInfo(objScene,INFO_IS_SPELL)) {
        bSpell=true;
    }else {
        bSpell=false;
    }
    yield;
}

task TCallBg{
    loop{
        TNormalBackground;
        while(bSpell==false){ yield; }
        TSpellBackground;
        while(bSpell==true){ yield; }
    }
}

task TNormalBackground{
    let non = GetCurrentScriptDirectory() ~ "img/non.png";

    let obj2 = ObjPrim_Create(OBJ_SPRITE_2D);
    ObjRender_SetBlendType(obj2, BLEND_ALPHA);
    Obj_SetRenderPriority(obj2, 0.21);
    ObjPrim_SetTexture(obj2, non);
    ObjSprite2D_SetSourceRect(obj2, 0, 0, 512, 512);
    ObjSprite2D_SetDestRect(obj2, -256, -256, 256, 256);
    ObjRender_SetPosition(obj2, 384/2, 448/2, 1);

    let frame = 0;
    let alpha = 0;

    loop{
        ObjSprite2D_SetSourceRect(obj2, 0, 0 + (frame*2) % 512, 512, 512 + (frame*2) % 512);
        frame++;
        yield;
    }
}

task TSpellBackground{
    let non = GetCurrentScriptDirectory() ~ "img/nani.png";
    let moon = GetCurrentScriptDirectory() ~ "img/moon.png";

    let obj = ObjPrim_Create(OBJ_SPRITE_2D);
    ObjRender_SetBlendType(obj,BLEND_ALPHA);
    Obj_SetRenderPriority(obj,0.25);
    ObjPrim_SetTexture(obj,moon);
    ObjSprite2D_SetSourceRect(obj,0,0,512,512);
    ObjSprite2D_SetDestCenter(obj);
    ObjRender_SetScaleXYZ(obj,512/512,512/512,1);
    ObjRender_SetX(obj,GetStgFrameWidth()/2);
    ObjRender_SetY(obj,GetStgFrameHeight()/2);

    let obj2 = ObjPrim_Create(OBJ_SPRITE_2D);
    ObjRender_SetBlendType(obj2, BLEND_ALPHA);
    Obj_SetRenderPriority(obj2, 0.21);
    ObjPrim_SetTexture(obj2, non);
    ObjSprite2D_SetSourceRect(obj2, 0, 0, 512, 512);
    ObjSprite2D_SetDestRect(obj2, -256, -256, 256, 256);//same2
    ObjRender_SetPosition(obj2, 384/2, 448/2, 1);//same1

    let frame = 0;
    let alpha = 0;

    loop{
        ObjSprite2D_SetSourceRect(obj2, 0, 0 + (frame*2) % 512, 512, 512 + (frame*2) % 512);
        frame++;
        yield;
    }
}