Reading Nodes

Reading Blueprint Nodes

• Events (Red Nodes)

• Starting blocks in event graph

  • Trigger subsequent code
  • Example: Enhanced input action for movement
  • “Event driven gameplay” concept
    • Player does action → code responds

• Blueprint Node Structure

• Top: Name

• Target: Function ownership

  • Example: Pawn function affects pawns
  • Works with child classes (character -> pawn)

• Split Layout:

  • Left side: Inputs
  • Right side: Outputs
  • Parameters/Pins types:
    • Execute pin
    • Object pin
    • Vector pin
    • Float pin
    • Boolean pin

• Function Execution (Blue Nodes)

• Requires white execute line connection

• “Left to right” reading direction

  • Follows arrow direction
  • Triggers next function after completion

• Example: Movement code

  • Event triggers → calls add movement input
  • Target = pawn
  • Direction = get actor right vector
  • Scale value from movement input event

• Advanced Node Features

• Structure pins (dark blue)

  • Bundles of variables
  • Can break apart for details

• Down arrow options

  • Reveals uncommon settings
  • Example: Debug visualization

• Finding/Adding Nodes

• Right click in empty space

• Context sensitive search (default)

  • Shows class-specific functions/variables
  • Can disable for all engine options

• Reference dragging

  • Drag from pin for context options
  • Shows available functions for specific type

Blueprint nodes form a visual programming system with color-coded elements and directional flow. Understanding node types, connections, and context sensitivity enables efficient blueprint creation and modification.