Module: Rubygame::Sprites::ForceGroup

Defined in:
lib/xgame.rb

Overview

This is a mixin module for groups of sprites with a constant force acting on them

Instance Method Summary collapse

Instance Method Details

#force=(value) ⇒ Object

Force vector [vx, vy, max_applied (optional)]



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# File 'lib/xgame.rb', line 201

def force=(value)
	value[2] = {} unless value
	@force = value
end

#update(*args) ⇒ Object 



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# File 'lib/xgame.rb', line 206

def update(*args)
	super(*args)
	force = [@force[0] * args[0]/1000.0, @force[1] * args[0]/1000.0, @force[2]] # Make sure force is applied the same no matter how fast we're rendering
	self.each { |sprite|
		sprite.apply_force(force) if sprite.respond_to?(:apply_force)
	}
end