![]() dataValue is an optional argument used to handle variations of the same block. ![]() ![]() tileName is the type of block you are looking for.position is the coordinates in the world where the command will look for the specific block.The /testforblock command looks for a specific block at a specified point in the world. Place a command block on the ground in a location near your player character.Now that we have looked at the settings of a command block, let’s set up the first block to detect a certain type of block in a location. After giving the player an emerald, mark that they have received the reward.If the player hasn't received the reward, give the player an emerald.If it does, check to see if the player has already received the reward.Check to see if a diamond block exists at a set location.If the gameplay loop was to give a player an emerald for placing a diamond block in a certain location, you can break down each step needed: A simple gameplay loop would be rewarding a player for completing an action. Delay in Ticks is a value that defines how long a command block waits to execute after the command block receives redstone power.Ī use case of command blocks is allowing creators to create gameplay loops within Minecraft.If disabled, the command will not run the first time until the delay has finished. If enabled, the command will execute as soon as the block is powered, and then will wait for the delay before running again. Execute on First Tick is only usable for repeating command blocks with a delay.For chain command blocks, this is enabled by default. For impulse command blocks, this causes them to only run once, so it isn't very useful. Always Active will set the command block to always activate with or without redstone.Needs Redstone will set the command block to only activate when it has redstone power.Redstone defines whether or not a command block requires redstone to activate.Unconditional will execute regardless if the previous block was successful or not. ![]()
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