Question

I m working on a rhythm-based game set to a specific song in ActionScript, in which a trigger spawns on the right side of the screen and moves left. The player must hit the trigger when it touches the left side of the screen, and I m trying to figure out the most code-efficient way to spawn triggers in sync with the timing of the song. The only thing that came immediately to mind was an update function tied to the main loop that checks if the song is at a certain second each frame, but that seems unnecessary. Any ideas?

Answer 1

我认为,最容易做这种比较准确的事情是

1/put the music into a .flv file and add cue points to it. Then the triggers can be synced to the cue points. My guess is that you ll also have to offset them somewhat to match what you see to what you hear though. It will definitely take some experimentation. With this solution however you need to keep in mind that the streaming of the file can be staggered, paused etc. depending on the D/L rate.

或

2/Another solution would be to imp或t the sound into the timeline of a movieclip as a stream and then let it dispatch events on the c或responding frames to sync it with triggers. I think this will be the most precise solution.

我认为,通过守则充分做到这一点还不够准确,显然也取决于音乐。如果你重新使用电子音乐,那么风.是机器的“效应”,但是如果它把人类带走,就会有轻微的变异和“灵敏”的rew。然而,如果你想走这条道路,

3/ you ll need to analyse the data that is produced through SoundMixer.computeSpectrum http://help.adobe.com/en_US/FlashPlatf或m/reference/actionscript/3/flash/media/SoundMixer.html#computeSpectrum()

显然,如果你想要更新歌曲,那就是唯一的解决方案。

我在这些事情上没有很多经验,但也许会有更好的解决办法。

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