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Contents
require "enumerator"
# SvgActor knows how to build himself based on an svg document based on the :name
# passed in being the group name in the doc (layer).
define_behavior :svg_built do
requires_behaviors :positioned
requires :physics_manager
setup do
name = @opts[:name]
svg_doc = @opts[:svg_doc]
my_layer = svg_doc.find_group_by_label(name.to_s)
segments = build_from_vertices my_layer.path.vertices
actor.has_attributes segments: segments,
name: name
end
helpers do
def build_from_vertices(vertices)
moment_of_inertia,mass = Float::INFINITY,Float::INFINITY
terrain_body = CP::Body.new(mass,moment_of_inertia)
elasticity = 0
friction = 0.7
thickness = 6
segments = []
[].tap do |segments|
vertices.each_cons(2) do |a,b|
seg = CP::Shape::Segment.new(terrain_body, a,b, thickness)
seg.collision_type = @name
seg.e = elasticity
seg.u = friction
seg.group = :terrain
segments << [a,b]
physics_manager.space.add_static_shape(seg)
end
end
end
end
end
define_actor :svg_actor do
has_behavior :svg_built
view do
draw do |target, x_off, y_off, z|
actor.segments.each do |seg|
p1 = seg[0]
p2 = seg[1]
# TODO pull in draw_line_s?
target.draw_line p1.x+x_off, p1.y+y_off, p2.x+x_off, p2.y+y_off, [25,255,25,255], z
#target.draw_line_s [p1.x+x_off,p1.y+y_off], [p2.x+x_off,p2.y+y_off], [25,255,25,255], 6
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems