path: root/Plugins/Core/onblockplace.lua

local BlockData = {}

function OnBlockPlace( Block, Player )

	-- dont check if the direction is in the air
	if Block.m_Direction ~= -1 then

		local X = Block.m_PosX
		local Y = Block.m_PosY
		local Z = Block.m_PosZ
		X, Y, Z = AddDirection( X, Y, Z, Block.m_Direction )
		if( Y >= 128 or Y < 0 ) then
			return true
		end

		BlockData = Block
		if( Player:GetWorld():ForEachPlayer( CheckCollision ) == false ) then
			return true
		else
			return false
		end

	end

	return false

end

function CheckCollision( Player )	
	-- drop the decimals, we only care about the full block X,Y,Z
	local PlayerX = math.floor(Player:GetPosX(), 0)
	local PlayerY = math.floor(Player:GetPosY(), 0)
	local PlayerZ = math.floor(Player:GetPosZ(), 0)

	local BlockX = BlockData.m_PosX
	local BlockY = BlockData.m_PosY
	local BlockZ = BlockData.m_PosZ

	-- player height is 2 blocks, so we check the position and then offset it up one
	-- so they can't place a block on there face

	local collision = false
	if BlockData.m_Direction == 0 then if PlayerY == BlockY-2 and PlayerX == BlockX and PlayerZ == BlockZ then collision = true end end
	if BlockData.m_Direction == 1 then if PlayerY == BlockY+1 and PlayerX == BlockX and PlayerZ == BlockZ then collision = true end end

	if BlockData.m_Direction == 2 then if PlayerY == BlockY and PlayerX == BlockX and PlayerZ == BlockZ-1 then collision = true end end
	if BlockData.m_Direction == 2 then if PlayerY+1 == BlockY and PlayerX == BlockX and PlayerZ == BlockZ-1 then collision = true end end

	if BlockData.m_Direction == 3 then if PlayerY == BlockY and PlayerX == BlockX and PlayerZ == BlockZ+1 then collision = true end end
	if BlockData.m_Direction == 3 then if PlayerY+1 == BlockY and PlayerX == BlockX and PlayerZ == BlockZ+1 then collision = true end end

	if BlockData.m_Direction == 4 then if PlayerY == BlockY and PlayerX == BlockX-1 and PlayerZ == BlockZ then collision = true end end
	if BlockData.m_Direction == 4 then if PlayerY+1 == BlockY and PlayerX == BlockX-1 and PlayerZ == BlockZ then collision = true end end

	if BlockData.m_Direction == 5 then if PlayerY == BlockY and PlayerX == BlockX+1 and PlayerZ == BlockZ then collision = true end end
	if BlockData.m_Direction == 5 then if PlayerY+1 == BlockY and PlayerX == BlockX+1 and PlayerZ == BlockZ then collision = true end end
	
	return collision
end