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Camera

The Camera object can be used to control what content (in world space) is rendered to the screen. The Camera is represented by a 2-dimensional point in world space that is mapped to the center of the screen.

HUD elements

Objects tagged as "detached" do not follow the camera. They are not in world space, but in screen space. This is useful for creating HUD elements.

Example

// Import the Camera object
using SurgeEngine.Camera;

// Reading the Camera status
// This object prints the position of the camera at every second
object "Camera Status" is "awake", "entity"
{
    state "main"
    {
        if(timeout(1))
            state = "print";
    }

    state "print"
    {
        Console.print(Camera.position);
        state = "main";
    }
}

Properties

position

position: Vector2 object.

The position of the camera in world space. Tip: use lateUpdate() if you need to change it.

Example 

using SurgeEngine.Camera;
using SurgeEngine.Player;

object "My Simple Camera" is "awake", "entity"
{
    fun lateUpdate()
    {
        player = Player.active;
        Camera.position = player.transform.position;
    }
}

locked

locked: boolean, read-only.

Is the camera locked to a certain area in space? Defaults to false.

Functions

lock

lock(left, top, right, bottom)

Locks the camera to a certain rectangular area in space. All coordinates are given in pixels and represent the boundaries of the rectangular area. They are such that left <= right and top <= bottom.

Arguments

  • left: number. A x-coordinate in world space.
  • top: number. A y-coordinate in world space.
  • right: number. A x-coordinate in world space.
  • bottom: number. A y-coordinate in world space.

unlock

unlock()

Unlocks the camera. If unlocked, the camera moves freely throughout the space.

worldToScreen

worldToScreen(position)

Converts position from world space to screen space. Screen coordinates are given in pixels. (0,0) is the top-left of the screen and (Screen.width,Screen.height) is the bottom-right.

Available since: Open Surge 0.5.1

Arguments

  • position: Vector2 object. The position to be converted.

Returns

Returns a Vector2 object corresponding to the converted coordinates.

screenToWorld

screenToWorld(position)

Converts position from screen space to world space. Screen coordinates are given in pixels. (0,0) is the top-left of the screen and (Screen.width,Screen.height) is the bottom-right.

Available since: Open Surge 0.5.1

Arguments

  • position: Vector2 object. The position to be converted.

Returns

Returns a Vector2 object corresponding to the converted coordinates.