[Flash object] Add ability to flash color tint, object effect, and opacity (fade)

[tristanbob]

New features

• Flash color tint
• Flash effect
• Flash opacity (fade)

Improvements

• When "Flash object" action is used during a pre-existing flash, simply extend the duration of the flashing
  • Previously, it always performed "hide object", potentially causing the object to be hidden too much

Playable game

https://gd.games/victrisgames/flash-object-extension-example

Project files

GDevelopApp/GDevelop-examples#554

Video

GDevelop_X3P80wkhvN.mp4

[github-actions]

Errors were detected in this submission:

❌ 4 Errors found in extension 'Flash':

  ⟶ ❌ (🔧) [Dots in sentences]: Field 'description' of the function 'IsTinted' misses a dot at the end of the sentence!
  ⟶ ❌ (🔧) [Dots in sentences]: Field 'description' of the function 'Stop' misses a dot at the end of the sentence!
  ⟶ ❌ (🔧) [Dots in sentences]: Field 'description' of the behavior 'FlashOpacity' misses a dot at the end of the sentence!
  ⟶ ❌ [JavaScript disallowed properties]: Found disallowed properties in extension 'Flash':
{
  allowedProperties: [
    'makeUuid',           'rgbToHex',
    'rgbOrHexToRGBColor', 'rgbToHexNumber',
    'hexNumberToRGB',     'hexToRGBColor',
    'copyArray',          'staticArray',
    'staticArray2',       'staticObject',
    'toDegrees',          'toRad',
    'random',             'randomFloat',
    'randomFloatInRange', 'randomInRange',
    'randomWithStep',     'evtTools',
    'Variable',           'RuntimeObject',
    'Logger'
  ],
  disallowedProperty: 'SpriteRuntimeObject',
  objectName: 'gdjs'
}


❌ 4 Errors found in extensions - please fix them before generating the registry.

[github-actions]

Errors were detected in this submission:

❌ 3 Errors found in extension 'Flash':

  ⟶ ❌ (🔧) [Dots in sentences]: Field 'description' of the function 'Stop' misses a dot at the end of the sentence!
  ⟶ ❌ (🔧) [Dots in sentences]: Field 'description' of the behavior 'FlashOpacity' misses a dot at the end of the sentence!
  ⟶ ❌ [JavaScript disallowed properties]: Found disallowed properties in extension 'Flash':
{
  allowedProperties: [
    'makeUuid',           'rgbToHex',
    'rgbOrHexToRGBColor', 'rgbToHexNumber',
    'hexNumberToRGB',     'hexToRGBColor',
    'copyArray',          'staticArray',
    'staticArray2',       'staticObject',
    'toDegrees',          'toRad',
    'random',             'randomFloat',
    'randomFloatInRange', 'randomInRange',
    'randomWithStep',     'evtTools',
    'Variable',           'RuntimeObject',
    'Logger'
  ],
  disallowedProperty: 'SpriteRuntimeObject',
  objectName: 'gdjs'
}


❌ 3 Errors found in extensions - please fix them before generating the registry.

[github-actions]

Errors were detected in this submission:

❌ 2 Errors found in extension 'Flash':

  ⟶ ❌ (🔧) [Dots in sentences]: Field 'description' of the function 'Stop' misses a dot at the end of the sentence!
  ⟶ ❌ [JavaScript disallowed properties]: Found disallowed properties in extension 'Flash':
{
  allowedProperties: [
    'makeUuid',           'rgbToHex',
    'rgbOrHexToRGBColor', 'rgbToHexNumber',
    'hexNumberToRGB',     'hexToRGBColor',
    'copyArray',          'staticArray',
    'staticArray2',       'staticObject',
    'toDegrees',          'toRad',
    'random',             'randomFloat',
    'randomFloatInRange', 'randomInRange',
    'randomWithStep',     'evtTools',
    'Variable',           'RuntimeObject',
    'Logger'
  ],
  disallowedProperty: 'SpriteRuntimeObject',
  objectName: 'gdjs'
}


❌ 2 Errors found in extensions - please fix them before generating the registry.

[github-actions]

Errors were detected in this submission:

❌ 1 Error found in extension 'Flash':

  ⟶ ❌ (🔧) [Dots in sentences]: Field 'description' of the function 'Stop' misses a dot at the end of the sentence!


❌ 1 Error found in extensions - please fix it before generating the registry.

[tristanbob]

@D8H my only remaining question on this extension is this:
Should we allow users to make flashing repeat forever?

If so, should we:

• Add a new boolean property "Infinite duration" (or similar)
• Use "Flash duration = 0" to signal this state

[github-actions]

Errors were detected in this submission:

❌ 1 Error found in extension 'Flash':

  ⟶ ❌ (🔧) [Dots in sentences]: Field 'shortDescription' of the extension description misses a dot at the end of the sentence!


❌ 1 Error found in extensions - please fix it before generating the registry.

[tristanbob]

@D8H my only remaining question on this extension is this: Should we allow users to make flashing repeat forever?

If so, should we:

• Add a new boolean property "Infinite duration" (or similar)
• Use "Flash duration = 0" to signal this state

I decide to use the second method. Duration >= 0 will keep flashing until stopped.

[D8H]

Great job, it should be useful.

You copied a deprecated function that was replaced by "onDestroy". But, I bet the extension would work without it. As it only uses object timers and properties which are already destroyed with the object by the engine.
I guess it can be important to remove it to avoid to confuse users who would take this extension as en example.

[D8H]

@D8H my only remaining question on this extension is this: Should we allow users to make flashing repeat forever?
If so, should we:

• Add a new boolean property "Infinite duration" (or similar)
• Use "Flash duration = 0" to signal this state

I decide to use the second method. Duration >= 0 will keep flashing until stopped.

I like to make 2 actions in this case:

• "Start flashing"
• ""Flash"

I think it's more user-friendly than a field value that must not be used (or set to 0).