Rectangle

Create and manage rectangles in the Phaser scene. Created with PhaserGame$add_rectangle() method.

Methods

Public methods

• Rectangle$new()

• Rectangle$show()

• Rectangle$hide()

• Rectangle$follow_camera()

• Rectangle$stop_camera_follow()

• Rectangle$set_scroll_factor()

• Rectangle$set_depth()

• Rectangle$click()

• Rectangle$clone()

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Method new()

Add a rectangle object to the Phaser scene.

Usage

Rectangle$new(
  name,
  x,
  y,
  width,
  height,
  color,
  visible,
  clickable,
  session = getDefaultReactiveDomain()
)

Arguments

name

Character. Unique name of the rectangle.

x

Numeric. X-coordinate in pixels.

y

Numeric. Y-coordinate in pixels.

width

Numeric. Rectangle width in pixels.

height

Numeric. Rectangle height in pixels.

color

Character. Fill color in Phaser-compatible format.

visible

Logical. Whether rectangle is initially visible.

clickable

Logical. Whether rectangle emits click events.

session

Shiny session object.

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Method show()

Show a previously added rectangle.

Usage

Rectangle$show()

---

Method hide()

Hide a previously added rectangle.

Usage

Rectangle$hide()

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Method follow_camera()

Make the camera follow this rectangle as it moves through the world.

Usage

Rectangle$follow_camera(lerp_x = 1, lerp_y = 1, round_pixels = TRUE)

Arguments

lerp_x

Numeric. Horizontal interpolation factor from 0 to 1 (default: 1).

lerp_y

Numeric. Vertical interpolation factor from 0 to 1 (default: 1).

round_pixels

Logical. Whether to round camera pixels to avoid sub-pixel rendering (default: TRUE).

---

Method stop_camera_follow()

Stop the camera from following this rectangle.

Usage

Rectangle$stop_camera_follow()

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Method set_scroll_factor()

Set how much this rectangle scrolls with the camera.

Usage

Rectangle$set_scroll_factor(x, y = x)

Arguments

x

Numeric. Horizontal scroll factor (0 = fixed to viewport, 1 = scrolls with world).

y

Numeric. Vertical scroll factor. Defaults to x.

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Method set_depth()

Set the rectangle's rendering depth. Objects with a larger depth are rendered in front of objects with a smaller depth.

Usage

Rectangle$set_depth(depth)

Arguments

depth

Numeric. Phaser rendering depth.

Returns

This rectangle object, invisibly, to support method chaining.

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Method click()

Add a click event listener to the rectangle that triggers an R function when clicked.

Usage

Rectangle$click(event_fun, input)

Arguments

event_fun

A function.

input

Shiny input object.

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Method clone()

The objects of this class are cloneable with this method.

Usage

Rectangle$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.