head_blocked.1.1

--Floating Blocks by negamartin
--You can use it for whatever you want, copy, modify, distribute it or use it as a base for your own structures

--Get what the main program is telling us to do
local args={...};

--If it wants to know how much probability we have to be chosen when selecting the next structure
if args[1]=="weight" then
    return 1;   --We have a normal structure's probability to be chosen

--If it wants us to build the structure,
elseif args[1]=="build" then
    --Get the angle the last structure had
    local lastAngle=args[2];

    --Get a random height difference for the block we are going to place in relation to the last block, from -2 to 1
    local hdif;
    local r=math.random();
    if  r<0.22222 then  hdif=-1;
    elseif  r<0.33333 then  hdif=-2;
    else                    hdif=0;
    end

    --Get the distance between the last block and the one we are gonna place, depending on the height difference (if the block is lower you can jump farther)
    local dist;
    if hdif==-1 then dist=4;
    elseif hdif==-2 then dist=4.3;
    elseif hdif==0 then dist=3.6;
    end

    --Get the new angle, which is (+-)0.3PI from the previous angle (lastAngle)
    local ang=lastAngle-math.pi*0.3+math.random()*math.pi*0.6;
    local ang2=ang-math.pi*0.3+math.random()*math.pi*0.6
    --Get the radius of our areaCheck sphere depending on the height difference
    local sphere;
    if hdif==-2 then sphere=7;
    elseif hdif==-1 then sphere=6;
    else sphere=5; end

    --Create our setblock parameters and place them in a table
    local b={
        math.floor(0.5+math.cos(ang)*dist),
        0,
        math.floor(0.5+math.sin(ang)*dist),
        "minecraft:stone",
    };
    local c={
        math.floor(b[1]+math.cos(ang2)*dist),
        hdif,
        math.floor(b[3]+math.sin(ang2)*dist),
        "minecraft:stone",
    };
    --Return the StructureTable, with everything it needs to have
    return {
        blocks={b,{b[1],b[2]+3,b[3],b[4]},c},                               --The blocks table contains 1 element: the floating block
        areaCheck={{b[1],b[2],b[3],sphere},{c[1],c[2],c[3],sphere}},    --The areaCheck table also only contains 1 element, our floating block area check.
        exit={c[1],c[2],c[3]},                  --The exit of this structure is this same block
        next=ang2,                              --Tell the next structure our angle was this
        length=50,                              --This structure is 15% a total checkpoint-to-checkpoint parkour section in normal difficulty
    };
end