Class: BulldogPhysics::IntersectionTests

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

Class Method Summary collapse

Class Method Details

.box_and_box(one, two) ⇒ Object 



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# File 'lib/RigidBodies/collision_shapes.rb', line 121

def self.box_and_box(one, two)

  to_center = two.get_axis(3) - one.get_axis(3)

  return   overlap_on_axis(one,two,one.getAxis(0), to_center) && \
            overlap_on_axis(one,two,one.getAxis(1), to_center) && \
            overlap_on_axis(one,two,one.getAxis(2), to_center) && \
            overlap_on_axis(one,two,two.getAxis(0), to_center) && \
            overlap_on_axis(one,two,two.getAxis(1), to_center) && \
            overlap_on_axis(one,two,two.getAxis(2), to_center) && \
            overlap_on_axis(one,two,one.getAxis(0) % two.getAxis(0), to_center) && \
          overlap_on_axis(one,two,one.getAxis(0) % two.getAxis(1), to_center) && \
          overlap_on_axis(one,two,one.getAxis(0) % two.getAxis(2), to_center) && \
          overlap_on_axis(one,two,one.getAxis(1) % two.getAxis(0), to_center) && \
          overlap_on_axis(one,two,one.getAxis(1) % two.getAxis(1), to_center) && \
          overlap_on_axis(one,two,one.getAxis(1) % two.getAxis(2), to_center) && \
          overlap_on_axis(one,two,one.getAxis(2) % two.getAxis(0), to_center) && \
          overlap_on_axis(one,two,one.getAxis(2) % two.getAxis(1), to_center) && \
          overlap_on_axis(one,two,one.getAxis(2) % two.getAxis(2), to_center)
end

.box_and_half_space(box, plane) ⇒ Object 



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# File 'lib/RigidBodies/collision_shapes.rb', line 142

def self.box_and_half_space(box, plane)
  projection_radius = transform_to_axis( box, plane.direction)
  box_distance = plane.direction * box.get_axis(3) - projection_radius
  box_distance < plane.offset 
end

.sphere_and_half_space(sphere, plane) ⇒ Object 



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# File 'lib/RigidBodies/collision_shapes.rb', line 107

def self.sphere_and_half_space(sphere, plane)

  ball_distance = plane.direction * sphere.get_axis(3) - sphere.radius

  ball_distance <= plane.offset
end

.sphere_and_sphere(one, two) ⇒ Object 



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# File 'lib/RigidBodies/collision_shapes.rb', line 114

def self.sphere_and_sphere(one, two)

  mid_line = one.get_axis(3) - two.get_axis(3)

  return mid_line.sqaureMagnitude < (one.radius + two.radius) * (one.radius + two.radius)
end