Event Sprite

Event Sprite

សំរាប់ Event មួយនេះវាជា Sprite event ដែលត្រូវបានប្រើជាមួយនឹង​ Sprite Objects។ សំរាប់ events ទាំងនេះត្រូវបានបង្កើតឡើងនៅពេលដែល Sprite animation មាន event។ ដូចនេះនៅពេលដែល animation stops, loops or plays the next frame

វាមាន​ Properties

Event.phase: វាជា String indicating ដែលជា phase នៅពេលដែល sprite object animation ដែលនៅក្នុងះ

Began: the sprite began playing

Ended: the sprite finished playing

Bounce: the sprite bounces from forward to backward while playing

Loop: the sprite loops from the beginning of the sequence

Next: the sprite plays a subsequent frame that’s none of the above phrases

សូមមើលកូដះ

If the sprite has 4 frames, then here are the phase-frame scenarios:

-- loop twice

began   1

next    2

next    3

next    4

loop    1

next    2

next    3

ended   4

-- loop infinitely, no bounce

(Same as above but continues forever. No 'ended' ever occurs)

-- loop infinitely, bounces

began   1

next    2

next    3

bounce  4

next    3

next    2

loop    1

next    2

...

-- loop twice, bounces

began   1

next    2

next    3

bounce  4

next    3

next    2

loop    1

next    2

next    3

bounce  4

next    3

next    2

ended   1

Example

local function spriteListener( event )

    print( event.name, event.sprite, event.phase, event.sprite.sequence )

end

-- Add sprite listener

instance:addEventListener( "sprite", spriteListener )

Event.target: វាជា Sprite ដែលបង្កើតនៅ event ដែល current properties អាច accessed ទៅបានតាមរយះ Property។ ឧះ event.target.sequence នឹងផ្តល់នៅ current sequence សំរាប់ Sprite

សូមមើលកូដះ

local function spriteListener( event )

    print( "Sprite event: ", event.target.sequence, event.phase )

end

-- Add sprite listener

instance:addEventListener( "sprite", spriteListener )