The text is centered over the objective by using the Get Text Size node. Objective label and icon drawn at those coordinates will always be hovering over the objective Actor when it is on the screen. The objective marker uses a Project function to convert a 3D location vector (representing the objective's location) into 2D screen coordinates, so that the In the HUD Blueprint, if the Current Objective is not null: Is set as the Objective variable in the Level Blueprint. The objective pickup in this level is the BP_Pickup_Child_Health also used in the Advanced Blueprints - Child Blueprints content example. The Material contains nodes that change the length of the health barĪccording to Current Health and Maximum Health scalar parameters, and the HUD Blueprint updates the Current Health parameter based on the Character's current health. The health bar is a dynamic Material Instance created in the HUD Blueprint's Construction Script. These values can be then be incorporated throughout the Blueprint toĪllow various HUD elements to scale and reposition themselves according to the size of the game screen, ensuring, for example, that a button remains in the center of the screen at any resolution. The ReceiveDrawHUD event that is used to draw each element of the HUD provides X and Y values representing the screen size.
The GameInfo_HUD Blueprint is the GameMode Blueprint which sets the BP_HUD_Example Blueprint as the HUD class, and it must be set as the GameMode Override in the World Settings tab. The GameMode sets the default Pawn class, HUD class, and PlayerController class, in addition to containing any game-specific gameplay behavior or settings. The HUD Blueprint can be found by searching for BP_HUD_Example in the Content Browser. A health bar material is drawn on the HUD and uses a Blueprint Interface function to get the health value from the Character, while an objective marker is drawn over an objective along with the objective's name and distance from the player.
This example demonstrates a simple in-game HUD, and also includes clickable buttons in the form of a basic pause menu.
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