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|
#!/usr/bin/perl
# TripleRotatingWheel gambling game contributed by "zentara"
# Idea derived from the wheelOfFortune.pl demo by D. Etienne etienne@cena.fr
# $Id$
use Tk;
use Tk::Zinc;
my @win =(); # an array to store winning wheel values, can range from
# () to (1,1,1)
# We create a classical root widget called MainWindow; then we create Zinc
# widget child with size, color and relief attributes, and we display it using
# the geometry manager called 'pack'.
my $mw = MainWindow->new;
$mw->geometry("700x600");
$mw->resizable(0,0);
my $zinc = $mw->Zinc(-width => 700, -height => 565,
-backcolor => 'black',
-borderwidth => 3, -relief => 'sunken');
$zinc->pack;
# Then we create a gray filled rectangle, in which we will display explain text.
$zinc->add('rectangle', 1 , [200, 400, 490, 490],
-linewidth => 2,
-filled => 1,
-fillcolor => 'SkyBlue',
);
my $text = $zinc->add('text', 1,
-position => [350, 445],
-anchor => 'center',
);
$zinc->add('rectangle', 1 , [250,275,450,325], #(xpos1,ypos1,xpos2,ypos2)
-linewidth => 2,
-filled => 1,
-fillcolor => 'Orange',
);
my $wintext = $zinc->add('text', 1,
-position => [350, 300],
-anchor => 'center',
);
#create winning wheel markers
#create first triangle, then clone and translate
my $tr1 = $zinc->add('triangles', 1,
[0,20,20,20,10,50],
-fan => 1,
-colors => 'Orange',
-visible => 1,
);
my $tr2 = $zinc->clone($tr1);
my $tr3 = $zinc->clone($tr1);
$zinc->translate($tr1,130,0);
$zinc->translate($tr2,340,0);
$zinc->translate($tr3,550,0);
# Create the Wheel object (see Wheel.pm)
my $wheel1 = Wheel->new($zinc, 350, 500, 100); #start xpos,ypos,mag
my $wheel2 = Wheel->new($zinc, 350, 500, 100);
my $wheel3 = Wheel->new($zinc, 350, 500, 100);
# Display comment
&comment("Strike any key to begin");
&wincomment("READY");
# Create Tk binding
$mw->Tk::bind('<Key>', \&openmode);
MainLoop;
# Callback bound to '<Key>' event when wheel is unmapped
sub openmode {
# set binding to unmap the wheel
$mw->Tk::bind('<Key>', \&closemode);
# set binding to rotate the hand
$zinc->bind($wheel1, '<1>', sub {spin()});
$zinc->bind($wheel2, '<1>', sub {spin()});
$zinc->bind($wheel3, '<1>', sub {spin()});
# map the wheel
$wheel1->show(140, 150);
$wheel2->show(350, 150);
$wheel3->show(560, 150);
# and then inform user
&comment("Click on any wheel to play.\n".
"Strike any key to hide the wheels.");
}
sub spin {
return if $wheel1->ismoving;
return if $wheel2->ismoving;
return if $wheel3->ismoving;
@win=();
&wincomment("PLAYING");
$wheel1->rotatewheel(int rand(360));
$wheel2->rotatewheel(int rand(360));
$wheel3->rotatewheel(int rand(360));
# print "\@win->@win\n";
}
# Callback bound to '<Key>' event when wheel is already mapped
sub closemode {
return if $wheel1->ismoving;
return if $wheel2->ismoving;
return if $wheel3->ismoving;
# set binding to map the wheel
$mw->Tk::bind('<Key>', \&openmode);
# unmap the wheel
$wheel1->hide(350, 400);
$wheel2->hide(350, 400);
$wheel3->hide(350, 400);
# and then inform user
&comment("Strike any key to show the wheel");
}
# Just display comment
sub comment {
my $string = shift;
$zinc->itemconfigure($text, -text => $string);
}
# display winning comment
sub wincomment {
my $string = shift;
$zinc->itemconfigure($wintext, -text => $string);
}
sub displaywin {
if($#win == -1){&wincomment("NO WIN")}
if($#win == 0){&wincomment("SINGLE")}
if($#win == 1){&wincomment("DOUBLE")}
if($#win == 2){&wincomment("TRIPLE")}
#restore disabled mouse click for next spin
$zinc->bind($wheel1, '<1>', sub {spin()});
$zinc->bind($wheel2, '<1>', sub {spin()});
$zinc->bind($wheel3, '<1>', sub {spin()});
}
#=============================================================================
# Wheel Class
#=============================================================================
package Wheel;
use strict 'vars';
use Carp;
#====================
# Object constructor
#====================
sub new {
my ($proto, $widget, $x, $y, $radius) = @_;
# object attributes
my $self = {
'widget' => $widget, # widget reference
'origin' => [$x, $y], # origin coordinates
'radius' => $radius, # wheel radius
'topgroup' => undef, # top Group item
'itemclip' => undef, # id of item which clips the wheel
'angle' => 0, # delta angle
'stepsnumber' => 20, # animations parameters
'afterdelay' => 30,
'shrinkrate' => 0.8, # zoom parameters
'zoomrate' => 1.1,
};
bless $self;
# First, we create a new Group item for the wheel. Why a Group item ?
# At least two reasons. Wheel object consists of several Zinc items,
# we'll see below; it moves when it is mapped or unmapped, grows when
# you hit the jackpot. So, it's more easy to apply such transformations
# to a structured items set, using Group capability, rather than apply
# to each item separately or using canvas-like Tags mechanism.
# Second reason refers to clipping. When it is mapped or unmapped, wheel
# object is drawn inside a circle with variant radius; clipping is a
# specific property of Group item
# That's why we create a Group item in the top group, and set its
# coordinates.
$self->{topgroup} = $widget->add('group', 1, -visible => 0);
$widget->coords($self->{topgroup}, [$x,$y]);
#print " start widget coords-> $x $y\n";
# All the following items will be created in this group...
# Create the invisible Arc item used to clip the wheel, centered on the
# group origin.
$self->{itemclip} = $widget->add('arc', $self->{topgroup},
[-$radius, -$radius, $radius, $radius],
-visible => 0,
);
$widget->itemconfigure($self->{topgroup}, -clip => $self->{itemclip});
# Create the wheel with 6 filled Arc items centered on the group origin
my $i = 0;
for my $color (qw(magenta blue cyan green yellow red)) {
$widget->add('arc', $self->{topgroup},
[-$radius, -$radius, $radius, $radius],
-visible => 1,
-filled => 1,
-closed => 1,
-extent => 60,
-pieslice => 1,
-fillcolor => $color,
-linewidth => 1,
-startangle => 60*$i ,
-tags => [$self],
);
$i++;
}
# Create the Text item representing the jackpot.
$widget->add('text', $self->{topgroup},
-position => [0, -$radius+20],
-font =>
'-adobe-helvetica-bold-o-normal--34-240-100-100-p-182-iso8859-1',
-anchor => 'center',
-text => "\$",
);
# Then we unmap the wheel; in fact, Group item is translated and its
# clipping circle is shrunk to a point.
$self->_clipAndTranslate($self->{shrinkrate}**$self->{stepsnumber});
return $self;
}
#================
# Public methods
#================
# Return 1 if wheel is moving (opening or closing animation)
sub ismoving {
my $self = shift;
return 1 if $self->{opening} or $self->{closing} or $self->{turning};
}
# Display wheel with animation effect
sub show {
my ($self, $x, $y) = @_;
# simple lock management
return if $self->{opening} or $self->{closing};
$self->{opening} = 1;
# start animation
$self->_open($x, $y, 0);
}
# Unmap wheel with animation effect
sub hide {
my ($self, $x, $y) = @_;
# simple lock management
return if $self->{opening} or $self->{closing};
$self->{closing} = 1;
# start animation
$self->_close($x, $y, 0);
}
# Just rotate the hand with animation effect.
sub rotatewheel {
my $self = shift;
#print "wheel-> $self->{topgroup}";
my $angle = shift;
#print " angle->$angle\n";
return if $self->{turning};
#prevent "double-clicking", so mouse is disabled
#until current play is over
$zinc->bind($wheel1, '<1>', sub {});
$zinc->bind($wheel2, '<1>', sub {});
$zinc->bind($wheel3, '<1>', sub {});
$angle = 0 unless $angle;
my $oldangle = $self->{angle};
$self->{angle} = $angle;
if ((330 < $angle)||($angle < 30)) {
$self->{fortune} = 1;
push (@win, $self->{fortune});
}
$self->_rotatewheel(2*3.1416*($angle + 1440 - $oldangle)/360);
#the 1440 above gives at least 2 full spins each play
}
#=================
# Private methods
#=================
# Generate opening animation; see below _clipAndTranslate method for
# Zinc specific use.
sub _open {
my ($self, $x, $y, $cnt) = @_;
my $widget = $self->{widget};
my $group = $self->{topgroup};
# first step of animation
if ($cnt == 0) {
$widget->itemconfigure($group, -visible => 1);
my @pos = $widget->coords($group);
$x = ($x - $pos[0])/$self->{stepsnumber};
$y = ($y - $pos[1])/$self->{stepsnumber};
# last step
} elsif ($cnt == $self->{stepsnumber}) {
$self->{opening} = undef;
return;
}
$cnt++;
# move and grow the wheel
$self->_clipAndTranslate(1/$self->{shrinkrate}, $x, $y);
# process the animation using the 'after' Tk defering method
$widget->after($self->{afterdelay}, sub {$self->_open($x, $y, $cnt)});
}
# Generate closing animation; see below _clipAndTranslate method for
# Zinc specific use.
sub _close {
my ($self, $x, $y, $cnt) = @_;
my $widget = $self->{widget};
my $group = $self->{topgroup};
# first step of animation
if ($cnt == 0) {
my @pos = $widget->coords($group);
$x = ($x - $pos[0])/$self->{stepsnumber};
$y = ($y - $pos[1])/$self->{stepsnumber};
# last step
} elsif ($cnt == $self->{stepsnumber}) {
$widget->itemconfigure($group, -visible => 0);
$self->{closing} = undef;
return;
}
$cnt++;
# move and shrink the wheel
$self->_clipAndTranslate($self->{shrinkrate}, $x, $y);
# process the animation using the 'after' Tk defering method
$widget->after($self->{afterdelay}, sub {$self->_close($x, $y, $cnt)});
&main::wincomment("READY");
}
# Generate hand rotation animation.
sub _rotatewheel {
my ($self, $angle, $cnt) = @_;
my $widget = $self->{widget};
my $group = $self->{topgroup};
#grab position of widget
my @pos = $widget->coords($group);
my $x = ($pos[0]);
my $y = ($pos[1]);
$self->{turning} = 1;
# first step of animation
if (not $cnt) {
$angle /= $self->{stepsnumber};
# last step
} elsif ($cnt == $self->{stepsnumber}) {
if ($self->{fortune}) {
$self->_fortune;
} else {
$self->{turning} = undef;
}
&main::displaywin();
return;
}
$cnt++;
# use 'rotation' Zinc method.
$widget->rotate($self->{topgroup}, $angle);
# process the animation using the 'after' Tk defering method
#needed to keep wheel stationary while rotating
$widget->coords($self->{topgroup},[$x,$y]);
$widget->after($self->{afterdelay}, sub {$self->_rotatewheel($angle, $cnt)});
}
# Generate growing animation to notify jackpot
sub _fortune {
my ($self, $cnt) = @_;
$cnt = 0 unless $cnt;
my $zf;
my $widget = $self->{widget};
my $group = $self->{topgroup};
my @pos = $widget->coords($group);
# last step of animation
if ($cnt == 6) {
$self->{fortune} = undef;
$self->{turning} = undef;
return;
# event steps : wheel grows
} elsif ($cnt == 0 or $cnt % 2 == 0) {
$zf = $self->{zoomrate};
# odd steps : wheel is shrunk
} else {
$zf = 1/$self->{zoomrate};
}
$cnt++;
# Now, we apply scale transformation to the Group item, using the 'scale'
# Zinc method. Note that we reset group coords before scaling it, in order
# that the origin of the transformation corresponds to the center of the
# wheel. When scale is done, we restore previous coords of group.
$widget->coords($group, [0, 0]);
$widget->scale($group, $zf, $zf);
$widget->coords($group, \@pos);
# process the animation using the 'after' Tk defering method
$widget->after(100, sub {print "\007";$self->_fortune($cnt)});
&main::displaywin();
}
# Update group clipping and translation, using 'scale' and 'translate'
# Zinc methods.
sub _clipAndTranslate {
my ($self, $shrinkfactor, $x, $y) = @_;
$x = 0 unless $x;
$y = 0 unless $y;
$self->{widget}->scale($self->{itemclip}, $shrinkfactor, $shrinkfactor);
$self->{widget}->translate($self->{topgroup}, $x, $y);
}
1;
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