require 'ruby2d'

set width: 200, height: 100

on key: 'a' do
  puts "a pressed!"
end

show

# on :mouse 'up' do
#   
# end
# 
# on :mouse 'down' do
#   
# end
# 
# on :key 'a' do
#   
# end
# 
# on :key_down 'a' do
#   
# end
# 
# on :mouse 'click' do
#   
# end
# 
# on :mouse 'right' do
#   
# end
# 
# on :mouse 'left' do
#   
# end
# 
# 
# on key: 'any' do
#   
# end
# 
# on key: 'a' do
#   
# end
# 
# on key: 'shift' do
#   
# end