Accessing Input System Configuration

Navigate to Edit → Project Settings → Input Manager → Axes to examine current input mappings.

Reading Horizontal and Vertical Input Values

Horizontal input returns values between -1 and 1, where 0 indicates no input.

float horizontalInput = Input.GetAxis("Horizontal");

Retrieving Character Position Coordinates

Vector2 currentPosition = transform.position;

// currentPosition.x represents horizontal axis
// currentPosition.y represents vertical axis

Implementing Basic Horizontal Movement

Modify the x-coordinate based on input to achieve horizontal movement.

currentPosition.x += 0.1f * Input.GetAxis("Horizontal");
transform.position = currentPosition;

For vertical movement, adjust the y-coordinate accordingly.

currentPosition.y += 0.1f * Input.GetAxis("Vertical");
transform.position = currentPosition;

Managing Movement Speed with Delta Time

Since Update() executes approximately 60 times per second, moving 0.1 units each frame results in 6 meters per second. To achieve 0.1 meters per second, multiply by Time.deltaTime.

Vector2 currentPosition = transform.position;

currentPosition.x += 0.1f * Input.GetAxis("Horizontal") * Time.deltaTime;
currentPosition.y += 0.1f * Input.GetAxis("Vertical") * Time.deltaTime;

transform.position = currentPosition;

Setting Application Frame Rate

In the Start() method, configure target frame rate:

Application.targetFrameRate = 10; // Sets to 10 frames per second

Controlling Rendering Order

1. Adjust Z-axis depth (toggle between 2D/3D view to visualize Z positioning)
2. Configure layer ordering via SpriteRenderer or TilemapRenderer's "Order in Layer" property - higher values render later and overlay lower values

Adjusting Camera Viewport Size

Select MainCamera in Hierarchy and modify the Size parameter in the Inspector.

Organizing Hierarchy Objects

Right-click in Hierarchy view, select "Create Empty", then nest objects under the created empty GameObject.

Configuring Y-Axis Rendering Priority

1. Edit → Project Settings → Graphics → Camera Settings
2. Set Transparency Sort Mode to Custom Axis
3. Configure Transparency Sort Axis: X=0, Y=1, Z=0

This setup enables objects with Y-values greater than 1 to render above those with lower values, with higher values rendering last and overlaying lower ones.

Understanding Sprite Renderer Sort Point

Sprite Sort Point determines which part of the sprite is used for depth sorting:

• Center: Uses the sprite's center point
• Pivot: Uses the defined pivot point

Higher Y-values render earlier, lower values render later. The pivot point defines the sprite's rotation and scaling origin.

Resolving Collision Jitter Issues

Jitter occurs when movement code conflicts with physics system detection, causing objects to repeatedly enter and exit colision boundaries.

Solution approach:

private Rigidbody2D physicsBody;

void Start() {
    physicsBody = GetComponent<Rigidbody2D>();
}