In Yop2D, there are three simple ways to move a character, without writing code. Pick the one that fits your game.
Method 1: with on-screen buttons (left / right)
Great for a platform game, or a game where the character moves along a line.
- In your scene, add your character (a Square or an Image) and name it player.
- Add two objects to use as buttons, for example two Button objects (or two squares) named btnLeft and btnRight. Put them at the bottom of the screen.
- Open the scene's Blueprint.
- Add the “Object Held Down” event and choose btnLeft as its target.
- Add a “Push object” node: target player, Add X = -5, Add Y = 0.
- Link the event's output to the input of “Push object”.
- Do the same for btnRight, with Add X = 5.
- Save, then start the game: as long as your finger stays on a button, the character moves.
Object Held Downtarget: btnLeft
→
Push objecttarget: player · Add X = -5
👉 “Object Held Down” repeats on every frame while the finger stays on the button: that is why the character keeps moving. To go faster, raise the value (for example 8 or 10).
Method 2: with a virtual joystick
Great for a top-down game, where the character moves in every direction. No node needed.
- Add a Joystick object to your scene (category Interactives) and put it at the bottom left.
- Select the joystick. In the inspector, section “Joystick Control”, tap the “Object to move” button and choose your character.
- Save, then start the game: the character follows the joystick.
👉 Shortcut: if you give your character the tag Player (or Joueur), the joystick moves it automatically, even if nothing is chosen in “Object to move”. Careful: this tag wins over the inspector's choice.
👉 Going further: the formulas
joystick.x and joystick.y give the direction (between -1 and 1). You can use them in a “Push object” node linked to “Every frame”, for example =joystick.x * 5. The “If joystick” node also has Up, Down, Left, Right and Idle outputs.Method 3: drag it with your finger
Great for a puzzle, a card game or any game where you move pieces around.
- Select your object in the scene editor.
- In the inspector, tap ⚙ Object behavior and choose Dragged with a finger.
- Start the game: you can drag the object with your finger.
👉 To react when the player lets go of the object (for example to check it is in the right place), use the “Drag End” event.
👉 To allow or block dragging during the game (a puzzle piece in the right place, for example), use the “Change the behavior” node.
Tips
- To make the character jump, follow the guide Make a character jump.
- The “Platform” example game that comes with Yop2D uses method 1: open it to see a complete Blueprint that works.
- A question? Come and talk about it on Discord or Telegram.