Display number of times click on screen using Gosu.button_down - ruby

Question

I am working on a ruby program using Gosu. I want to display the number of mouse click times every time I click on a button on the screen. Please help me with this. Thank you so much
require 'rubygems'
require 'gosu'
module ZOrder
BACKGROUND, MIDDLE, TOP = *0..2
end
WIN_WIDTH = 640
WIN_HEIGHT = 400
class DemoWindow < Gosu::Window
def initialize
super(WIN_WIDTH, WIN_HEIGHT, false)
#background = Gosu::Color::WHITE
#button_font = Gosu::Font.new(20)
#info_font = Gosu::Font.new(10)
#locs = [60,60]
end
def draw
Gosu.draw_rect(0, 0, WIN_WIDTH, WIN_HEIGHT, #background, ZOrder::BACKGROUND, mode=:default)
if area_clicked(mouse_x, mouse_y)
draw_line(50, 50, Gosu::Color::BLACK, 150, 50, Gosu::Color::BLACK, ZOrder::TOP, mode=:default)
draw_line(50, 50, Gosu::Color::BLACK, 50, 100, Gosu::Color::BLACK, ZOrder::TOP, mode=:default)
draw_line(150, 50, Gosu::Color::BLACK, 150, 101, Gosu::Color::BLACK, ZOrder::TOP, mode=:default)
draw_line(50, 100, Gosu::Color::BLACK, 150, 100, Gosu::Color::BLACK, ZOrder::TOP, mode=:default)
end
Gosu.draw_rect(50, 50, 100, 50, Gosu::Color::GREEN, ZOrder::MIDDLE, mode=:default)
#button_font.draw_text("Click me", 60, 60, ZOrder::TOP, 1.0, 1.0, Gosu::Color::BLACK)
#info_font.draw_text("mouse_x: #{mouse_x}", 0, 350, ZOrder::TOP, 1.0, 1.0, Gosu::Color::BLACK)
#info_font.draw_text("mouse_y: #{mouse_y}", 100, 350, ZOrder::TOP, 1.0, 1.0, Gosu::Color::BLACK )
if Gosu.button_down? Gosu::MsLeft
index =0
button = area_clicked(mouse_x, mouse_y)
case button
when 1
index+=1
#info_font.draw("Times Click: #{index}", 370, 350, ZOrder::TOP, 1.0, 1.0, Gosu::Color::BLACK)
end
end
end
def needs_cursor?; true; end
def area_clicked(mouse_x, mouse_y)
if ((mouse_x > 50 and mouse_x < 150) and (mouse_y > 50 and mouse_y < 100))
return 1
else
end
end
def button_down(id)
if id == Gosu::KB_ESCAPE
close
else
super
end
end
end
DemoWindow.new.show
Below is the code I have added. When I click on the button, it only displays the number of times click is 1, however, I need it to display the number of times I clicked on.

Answer 1

This is because you're setting index back to zero every time the mouse is clicked (index =0). You should probably set your index to zero in your initialize function, and make it a class variable (add # to the front).
Then your initialize code would be:
def initialize
super(WIN_WIDTH, WIN_HEIGHT, false)
#background = Gosu::Color::WHITE
#button_font = Gosu::Font.new(20)
#info_font = Gosu::Font.new(10)
#locs = [60,60]
#index = 0
end
and the code for the mouse click would be:
if Gosu.button_down? Gosu::MsLeft
button = area_clicked(mouse_x, mouse_y)
case button
when 1
#index += 1
#info_font.draw("Times Click: #{#index}", 370, 350, ZOrder::TOP, 1.0, 1.0, Gosu::Color::BLACK)