Class: BulldogPhysics::World

Inherits:
Object
  • Object
show all
Defined in:
lib/RigidBodies/world.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(max_contacts = 20, iterations = 5) ⇒ World 



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# File 'lib/RigidBodies/world.rb', line 31

def initialize(max_contacts = 20, iterations = 5)
  @max_contacts = max_contacts
  @contacts = Array.new
  @calculate_iterations = iterations == 0
  @resolver = ContactResolver.new(iterations)
  @bodies = Array.new
  @registry = ForceRegistry.new
  @contact_generators = Array.new
end

Instance Attribute Details

#bodies ⇒ Object

Returns the value of attribute bodies.



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# File 'lib/RigidBodies/world.rb', line 22

def bodies
  @bodies
end

#calculate_iterations ⇒ Object

Returns the value of attribute calculate_iterations.



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# File 'lib/RigidBodies/world.rb', line 28

def calculate_iterations
  @calculate_iterations
end

#contact_generators ⇒ Object

Returns the value of attribute contact_generators.



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# File 'lib/RigidBodies/world.rb', line 24

def contact_generators
  @contact_generators
end

#contacts ⇒ Object

Returns the value of attribute contacts.



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# File 'lib/RigidBodies/world.rb', line 26

def contacts
  @contacts
end

#first_body ⇒ Object

Returns the value of attribute first_body.



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# File 'lib/RigidBodies/world.rb', line 25

def first_body
  @first_body
end

#max_contacts ⇒ Object

Returns the value of attribute max_contacts.



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# File 'lib/RigidBodies/world.rb', line 27

def max_contacts
  @max_contacts
end

#registry ⇒ Object

Returns the value of attribute registry.



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# File 'lib/RigidBodies/world.rb', line 22

def registry
  @registry
end

#resolver ⇒ Object

Returns the value of attribute resolver.



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# File 'lib/RigidBodies/world.rb', line 23

def resolver
  @resolver
end

Instance Method Details

#add_gravity ⇒ Object 



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# File 'lib/RigidBodies/world.rb', line 90

def add_gravity
  #gravity = Gravity.new(Vector3.new(0, -0.5, 0))
  #@bodies.each{|body| @registry.add(body, gravity)}
end

#generate_contacts ⇒ Object 



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# File 'lib/RigidBodies/world.rb', line 48

def generate_contacts()
  limit = @max_contacts


  for g in @contact_generators
    used = g.add_contact(@contacts, limit)        
  end

  #eturn @max_contacts - limit
  return @contacts.size
end

#integrate(duration) ⇒ Object 



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# File 'lib/RigidBodies/world.rb', line 61

def integrate(duration)
  for b in @bodies
    b.integrate(duration)
    b.calculate_derived_data
    #b.calculate_internals
  end
end

#run_physics(duration, clear_contacts = true) ⇒ Object 



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# File 'lib/RigidBodies/world.rb', line 69

def run_physics(duration, clear_contacts = true)

  #@contacts.clear() if clear_contacts

  @registry.update_forces(duration)
  integrate(duration)
  used_contacts = generate_contacts()
        
  if(used_contacts > 0)
    #if(@calculate_iterations)
       @resolver.iterations = used_contacts * 2
       @resolver.resolve_contacts(@contacts, used_contacts, duration)
  #  end
  end




  #integrate(duration)
end

#start_frame ⇒ Object 



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# File 'lib/RigidBodies/world.rb', line 41

def start_frame()
  @bodies.each do |body|
    body.clear_accumulators
    body.calculate_derived_data
  end
end