//Set icon item
setIcon(<minecraft:grass>)

//Set title String
setTitle("Left clicking a block")

//Set description String
setDescription("Left click a grass block")

//Add a parent advancement. The syntax is "modid:folder/path/to/the/advancement/then/filename"
addParent("triumph:example/root")

//Set the position
setPos(57,65)

//Hide the connection lines, so I can have a pretty shape
hideLines()

//Adds criteria named "clickedBlock" with the trigger type "triumph:left_click_block". This function returns the criteria as an object
criteria = addCriteria("clickedBlock", "triumph:left_click_block")

//Sets the required block for the criteria. This is the block that needs to be left clicked by the player.
criteria.setBlock(<minecraft:grass>)