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Learning iOS 8 Game Development Using Swift by Siddharth Shekar

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Particle systems

A particle system is a collection of sprites or particles. Each particle system has an emitter from where the particles will be created. A particle system also determines the behavior of the particles in the system. Hence it can be said that a particle is the smallest entity that creates the particle system.

A very easy example of a particle system is Rain. Rain is a particle system in which each rain drop is a particle and a cloud has a lot of emitters from where the droplets, or particles, are created.

We create a particle system instead of creating individual particles because with a particle system, we can create different kinds of effects using the same particle. For example, we saw Rain, which is a particle system. What if ...

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