Player Raycast does not return expected coordinates

LordFoobar · Jul 12th 2015

Playing around with the API, I have this bit of code :

Code

event.player:raycast(event.player:getPosition(), event.player:getViewDirection(), 128, function (raycastResult)


    local worldData = getWorldData(raycastResult.collisionPoint);


    print("Point="..StringUtils:vector3fToString(raycastResult.collisionPoint));
    print("Normal="..StringUtils:vector3fToString(raycastResult.collisionNormal));
    print("Distance="..raycastResult.distance);
    print("Type="..raycastResult.collisionType);


    print("Terrain="..worldData.terrainId);
    print("Block="..worldData.block.type.." "..worldData.block.id.." "
    --  ..(worldData.block.orientation or "?").." "..(worldData.block.direction or "?").." "
    --  ..worldData.block.absId
    );
    -- TODO : add objects, etc.


  end);

Display More

(Don't mind the commented lines.)

And here is getWorldData

Code

function getWorldData(globalPosition)
    local chunkPos = Vector:createVector3i(0, 0, 0);
    local blockPos = Vector:createVector3i(0, 0, 0);


    ChunkUtils:getChunkAndBlockPosition(globalPosition, chunkPos, blockPos);


    return {
        terrainId = world:getTerrainData(chunkPos.x, chunkPos.y, chunkPos.z, blockPos.x, blockPos.y, blockPos.z),
        block = getBlockTypeAndId(world:getBlockData(chunkPos.x, chunkPos.y, chunkPos.z, blockPos.x, blockPos.y, blockPos.z))
    };
end

Display More

(Again, don't mind other pieces of the code, suffices to say that getBlockTypeAndId returns the absolute block id into a type and texture id, etc.)

However, I always get Terrain=0 and Block=block 0. So, is the hit position represented by raycastResult.collisionPoint a position before hitting something, or am I missing something? How do I get the block position where the collision occurs?

red51 · Jul 13th 2015

Thanks for letting us know! Once the update is out we will have a look at this

LordFoobar · Jul 13th 2015

Thanks!

I also thought that the collision might occur right before the specific location (i.e. to place lights, etc.) so I tried changing the line 3 of the first source code provided like so

Code

local worldData = getWorldData(event.player:getPosition():add(event.player:getViewDirection():mult(raycastResult.distance + 0.2)));

to make the actual hit test a little further, but no real change. I did get a correct result at a very specific location, but I'm not sure why. Since I need to restart the game every time I change a little thing, this debugging is too time consuming for me at the moment.

Having a debugging console (writing commands into the Lua console) would be quite useful

Participate now!