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AGE of Joy Documentation

AGEBasic examples - configure room lighting

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To configure the lighting for a specific room using AGEBasic, you need to designate a program to run when that room is loaded. For instance, to set a program for “room001”, you would modify the configuration/room001.yaml file.

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Example room001.yaml Configuration

YAML

agebasic:
  after-load: changelights.bas
  active: true
  debug: false

In this configuration:

  • after-load: Specifies the AGEBasic program (changelights.bas) to be executed immediately after “room001” is loaded.
  • active: Indicates whether AGEBasic programs are enabled for this room.
  • debug: Sets the debugging mode for AGEBasic execution in this room.

changelights.bas Examples

Below are examples of AGEBasic programs that can be used to manipulate the global lighting when a room is loaded:

Example 1: Setting a red and luminous ambient light.

10 CALL SetGlobalLight(255, 0, 0, 1.5)

This simple program directly calls the SetGlobalLight function to set the red color component to its maximum (255), the green and blue components to zero, and the light intensity to 1.5, resulting in a bright red ambient light.

Example 2: Increasing the intensity of the current global light.

10 LET s = GetGlobalLight("|")
20 LET r, g, b = GetMember(s, 0, "|"), GetMember(s, 1, "|"), GetMember(s, 2, "|")
30 CALL SetGlobalLight(VAL(r), VAL(g), VAL(b), 2)

This program first retrieves the current global light configuration as a string using GetGlobalLight("|"), where ”|” acts as the separator. Then, it extracts the red, green, and blue color components using the GetMember function, parsing the string based on the ”|” delimiter. Finally, it uses the SetGlobalLight function to apply the same color values but increases the intensity to 2, effectively “turning on” or brightening the existing light color.

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