booby_trap.1.1

--Floating Blocks by negamartin
--Modified to Booby Trap by Lion4ever

--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={...};
function waitForExplosion(x,y,z)
    while commands.getBlockInfo(x,y,z).name == "minecraft:air" and
          commands.getBlockInfo(x,y-1,z).name == "minecraft:stone" do
        sleep(1)
    end
end

--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]=="death" then
    local s = args[2]
    waitForExplosion(unpack(s.blocks[3]))
    for i,b in ipairs(s.blocks) do
        commands.async.setblock(unpack(b))
    end
elseif args[1]=="remove_structure" then
    local s = args[2]
    waitForExplosion(unpack(s.blocks[3]))
    return false -- so that the remaining blocks are still removed
elseif args[1]=="place_marker" then
    local fence=args[2].blocks[1];
    fence[4]="minecraft:obsidian";
    commands.async.setblock(unpack(fence));
    return true;
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>0.66666 then  hdif=1;
    elseif  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=3.2;
    elseif hdif==-1 then dist=5;
    elseif hdif==-2 then dist=5.3;
    elseif hdif==0 then dist=4.6;
    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;

    --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),
        hdif,
        math.floor(0.5+math.sin(ang)*dist),
        "minecraft:stone",
    };
    local bAll = {
        b,
        {b[1],b[2]+1,b[3],"minecraft:wooden_pressure_plate"},
        {b[1],b[2]-1,b[3],"minecraft:tnt"},
        {b[1],b[2]-2,b[3],b[4]},
    }
    for c=-1,1 do
        for d=-1,1 do
            if c ~= 0 or d ~= 0 then
                for e=-2,0 do
                    table.insert(bAll,{b[1]+c,b[2]+e,b[3]+d,"minecraft:web"})
                end
            end
        end
    end
--Return the StructureTable, with everything it needs to have
    return {
        blocks= bAll,                           --The blocks table contains 1 element: the floating block
        areaCheck={{b[1],b[2],b[3],sphere}},    --The areaCheck table also only contains 1 element, our floating block area check.
        exit={b[1],b[2],b[3]},                  --The exit of this structure is this same block
        next=ang,                               --Tell the next structure our angle was this
        length=15,                              --This structure is 15% a total checkpoint-to-checkpoint parkour section in normal difficulty
    };
end