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package TetrixPiece;
use strict;
use warnings;
use blib;
use List::Util qw(min max);
use QtCore4;
use QtGui4;
# Make it a Qt::Object, so we can use 'this'. I'm lazy :-)
use QtCore4::isa qw( Qt::Object );
use TetrixPiece;
use constant {
NoShape => 0,
ZShape => 1,
SShape => 2,
LineShape => 3,
TShape => 4,
SquareShape => 5,
LShape => 6,
MirroredLShape => 7,
};
# XXX Why doesn't Exporter work?
#require Exporter;
#use base qw( Exporter );
#our @EXPORT = qw( NoShape ZShape SShape LineShape TShape SquareShape LShape
#MirroredLShape );
my @coordsTable = (
[ [ 0, 0 ], [ 0, 0 ], [ 0, 0 ], [ 0, 0 ] ],
[ [ 0, -1 ], [ 0, 0 ], [ -1, 0 ], [ -1, 1 ] ],
[ [ 0, -1 ], [ 0, 0 ], [ 1, 0 ], [ 1, 1 ] ],
[ [ 0, -1 ], [ 0, 0 ], [ 0, 1 ], [ 0, 2 ] ],
[ [ -1, 0 ], [ 0, 0 ], [ 1, 0 ], [ 0, 1 ] ],
[ [ 0, 0 ], [ 1, 0 ], [ 0, 1 ], [ 1, 1 ] ],
[ [ -1, -1 ], [ 0, -1 ], [ 0, 0 ], [ 0, 1 ] ],
[ [ 1, -1 ], [ 0, -1 ], [ 0, 0 ], [ 0, 1 ] ]
);
sub setX {
my ( $index, $x ) = @_;
this->coords->[$index]->[0] = $x;
}
sub setY {
my ( $index, $x ) = @_;
this->coords->[$index]->[1] = $x;
}
sub NEW {
shift->SUPER::NEW();
this->{coords} = [];
this->setShape( NoShape );
}
# [0]
sub pieceShape {
return this->{pieceShape};
}
sub shape {
return this->{pieceShape};
}
sub x {
my ( $index ) = @_;
return this->coords->[$index]->[0];
}
sub y {
my ( $index ) = @_;
return this->coords->[$index]->[1];
}
sub coords {
return this->{coords};
};
# [0]
sub qrand {
# 2147483647 is the value of RAND_MAX, defined in stdlib.h, at least on my
# machine. See the Qt4 4.2 documentation on qrand() for more details.
return rand(2147483647);
}
# [0]
sub setRandomShape {
this->setShape(qrand() % 7 + 1);
}
# [0]
# [1]
sub setShape {
my ($shape) = @_;
for (my $i = 0; $i < 4 ; $i++) {
for (my $j = 0; $j < 2; ++$j) {
this->coords()->[$i]->[$j] = $coordsTable[$shape]->[$i]->[$j];
}
}
this->{pieceShape} = $shape;
# [1] //! [2]
}
# [2]
# [3]
sub minX {
my $min = this->coords()->[0]->[0];
for (my $i = 1; $i < 4; ++$i) {
$min = min($min, this->coords()->[$i]->[0]);
}
return $min;
}
sub maxX {
# [3] //! [4]
my $max = this->coords()->[0]->[0];
for (my $i = 1; $i < 4; ++$i) {
$max = max($max, this->coords()->[$i]->[0]);
}
return $max;
}
# [4]
# [5]
sub minY {
my $min = this->coords()->[0]->[1];
for (my $i = 1; $i < 4; ++$i) {
$min = min($min, this->coords()->[$i]->[1]);
}
return $min;
}
sub maxY {
# [5] //! [6]
my $max = this->coords()->[0]->[1];
for (my $i = 1; $i < 4; ++$i) {
$max = max($max, this->coords()->[$i]->[1]);
}
return $max;
}
# [6]
# [7]
sub rotatedLeft {
if (this->pieceShape() == SquareShape) {
return this;
}
my $result = TetrixPiece();
$result->{pieceShape} = this->pieceShape();
for (my $i = 0; $i < 4; ++$i) {
$result->setX($i, this->y($i));
$result->setY($i, -(this->x($i)));
}
# [7]
return $result;
}
# [9]
sub rotatedRight {
if (this->pieceShape() == SquareShape) {
return this;
}
my $result = TetrixPiece();
$result->{pieceShape} = this->pieceShape();
for (my $i = 0; $i < 4; ++$i) {
$result->setX($i, -(this->y($i)));
$result->setY($i, this->x($i));
}
# [9]
return $result;
}
1;
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