| 1 | package Pastel::Geometry::Point;\r |
| 2 | @ISA = ("Pastel::Mixin::Mixin");\r |
| 3 | use strict;\r |
| 4 | \r |
| 5 | sub new \r |
| 6 | {\r |
| 7 | my( $class) = shift;\r |
| 8 | my $self = {};\r |
| 9 | bless $self, ref($class) || $class;\r |
| 10 | $self = $self->_init(@_);\r |
| 11 | return $self;\r |
| 12 | }\r |
| 13 | \r |
| 14 | sub _init\r |
| 15 | {\r |
| 16 | my ($self) = shift;\r |
| 17 | \r |
| 18 | if (@_ == 1){ #If only one parameter left after shifting\r |
| 19 | \r |
| 20 | if(ref($_[0]) =~ /Point/i){\r |
| 21 | $self-> _clone_point($_[0]);\r |
| 22 | return $self;\r |
| 23 | } \r |
| 24 | else{\r |
| 25 | return undef;\r |
| 26 | }\r |
| 27 | } \r |
| 28 | else {\r |
| 29 | my ($x, $y) = $self->_rearrange(["X", "Y"], @_);\r |
| 30 | \r |
| 31 | $self->{x} = $x ? $x : 0;\r |
| 32 | $self->{y} = $y ? $y :0;\r |
| 33 | return $self;\r |
| 34 | }\r |
| 35 | }\r |
| 36 | \r |
| 37 | sub _clone_point {\r |
| 38 | my $self = shift;\r |
| 39 | $self->{x} = $_[0]->get_x();\r |
| 40 | $self->{y} = $_[0]->get_y();\r |
| 41 | }\r |
| 42 | \r |
| 43 | sub get_x {\r |
| 44 | my $self = shift;\r |
| 45 | return $self->{x};\r |
| 46 | }\r |
| 47 | \r |
| 48 | sub get_y {\r |
| 49 | my $self = shift;\r |
| 50 | return $self->{y};\r |
| 51 | }\r |
| 52 | \r |
| 53 | sub set_x {\r |
| 54 | my $self = shift;\r |
| 55 | my ($x) = $self->_rearrange(["X"], @_);\r |
| 56 | $self->{x} = $x;\r |
| 57 | }\r |
| 58 | \r |
| 59 | sub set_y {\r |
| 60 | my $self = shift;\r |
| 61 | my ($y) = $self->_rearrange(["Y"], @_);\r |
| 62 | $self->{y} = $y;\r |
| 63 | }\r |
| 64 | sub move {\r |
| 65 | my $self = shift;\r |
| 66 | my ($x, $y) = $self->_rearrange(["X", "Y"], @_);\r |
| 67 | $self->{x} = $x;\r |
| 68 | $self->{y} = $y;\r |
| 69 | }\r |
| 70 | \r |
| 71 | sub translate {\r |
| 72 | my $self = shift;\r |
| 73 | my ($x, $y) = $self->_rearrange(["X", "Y"], @_);\r |
| 74 | $self->{x} += $x;\r |
| 75 | $self->{y} += $y;\r |
| 76 | }\r |
| 77 | \r |
| 78 | sub set_location {\r |
| 79 | my $self = shift;\r |
| 80 | $self->move(@_);\r |
| 81 | }\r |
| 82 | \r |
| 83 | sub equals {\r |
| 84 | my $self = shift;\r |
| 85 | my $x = $_[0]->get_x();\r |
| 86 | my $y = $_[0]->get_y();\r |
| 87 | if ( ($self->{x} == $x) && ($self->{y} == $y) ){\r |
| 88 | return 1;\r |
| 89 | } \r |
| 90 | else {\r |
| 91 | return undef;\r |
| 92 | }\r |
| 93 | }\r |
| 94 | \r |
| 95 | sub to_string {\r |
| 96 | my $self = shift;\r |
| 97 | my $r = ref($self)."[x=".$self->{x}.",y=".$self->{y}."]";\r |
| 98 | return $r;\r |
| 99 | }\r |
| 100 | \r |
| 101 | \r |
| 102 | sub distance {\r |
| 103 | my ($self, @args) = @_;\r |
| 104 | =head1 \r |
| 105 | if (($_[0] =~ /:point/i) || (ref($_[0]) =~ /:point/i)){\r |
| 106 | ($self, @args) = @_;\r |
| 107 | }\r |
| 108 | else {\r |
| 109 | @args = @_;\r |
| 110 | }\r |
| 111 | =cut \r |
| 112 | my $d = undef;\r |
| 113 | if (@args == 1){ #Passed a reference\r |
| 114 | \r |
| 115 | my $x = $args[0]->get_x();\r |
| 116 | my $y = $args[0]->get_y();\r |
| 117 | $d =_calculate_distance ($self->{x}, $self->{y},\r |
| 118 | $x, $y);\r |
| 119 | }\r |
| 120 | elsif (@args == 2) {\r |
| 121 | $d = _calculate_distance($self->{x}, $self->{y}, @args);\r |
| 122 | }\r |
| 123 | else {\r |
| 124 | \r |
| 125 | my ($x1, $y1, $x2, $y2) = \r |
| 126 | Pastel::Mixin::Mixin::_rearrange("static",["X1","Y1","X2","Y2"],@_);\r |
| 127 | \r |
| 128 | $d = _calculate_distance($x1, $y1, $x2, $y2);\r |
| 129 | \r |
| 130 | }\r |
| 131 | return $d;\r |
| 132 | }\r |
| 133 | \r |
| 134 | sub _calculate_distance {\r |
| 135 | my ($x1, $y1, $x2, $y2) = @_;\r |
| 136 | return sqrt ( ($x1 - $x2)**2 + ($y1 - $y2)**2 );\r |
| 137 | }\r |
| 138 | \r |
| 139 | 1;\r |
| 140 | \r |