fix script reference
Add simple collision detection checking
Update game state when game over is signaled
Emit game ending if bump flower
use clip to apply small sight radius
integrate soundmanager2
Refactor filter
Update AudioManager class.
refactor codes and add night effect to dark circle filter
update guardian generation mechanism
fix error map 5 and 6
fix conflict worldMap.js
Fix file ref issue, include .ogg
fix map 2 error
Merge remote-tracking branch 'upstream/master' into increase_maps