[Performance Improvement] Use of hash map instead of list in triangulator

[suyashmahar]

Triangulator uses ArrayList to handle list of triangles, but operations like search, delete are often performed on these list. Performance might improve if hash map is instead since it performs same operation in almost constant time instead of linear time.

[dakshitagrawal]

having a look at the performance benefits.

[suyashmahar]

@dakshitagrawal97 Try using android profiling tools to get a clearer picture of whats happening in your device. Android application (performance and more) analysis tools - Tutorial