package CFClient::MapWidget;

use strict;

use List::Util qw(min max);

use SDL::OpenGL;

our @ISA = CFClient::UI::Base::;

sub new {
   my $class = shift;

   $class->SUPER::new (
      z         => -1,
      can_focus => 1,
      list      => (glGenLists 1),
      @_
   )
}

sub key_down {
   print "MAPKEYDOWN\n";
}

sub key_up {
}

sub button_down {
   my ($self, $ev, $x, $y) = @_;

   $self->focus_in;

   if ($ev->button == 2) {
      my ($ox, $oy) = ($ev->button_x, $ev->button_y);
      my ($bw, $bh) = ($::CFG->{map_shift_x}, $::CFG->{map_shift_y});

      $self->{motion} = sub {
         my ($ev, $x, $y) = @_;

         ($x, $y) = ($ev->motion_x, $ev->motion_y);

         $::CFG->{map_shift_x} = $bw + $x - $ox;
         $::CFG->{map_shift_y} = $bh + $y - $oy;

         $self->update;
      };
   }
}

sub button_up {
   my ($self, $ev, $x, $y) = @_;

   delete $self->{motion};
}

sub mouse_motion {
   my ($self, $ev, $x, $y) = @_;

   $self->{motion}->($ev, $x, $y) if $self->{motion};
}

sub size_request {
   (
      1 + 32 * int $::WIDTH  / 32,
      1 + 32 * int $::HEIGHT / 32,
   )
}

sub update {
   my ($self) = @_;

   $self->{need_update} = 1;
   $self->SUPER::update;
}

sub draw {
   my ($self) = @_;

   if (delete $self->{need_update}) {
      glNewList $self->{list}, GL_COMPILE;

      if ($::MAP) {
         my $sw = int $::WIDTH  / 32;
         my $sh = int $::HEIGHT / 32;

         my $sx = $::CFG->{map_shift_x}; my $sx0 = $sx & 31; $sx = ($sx - $sx0) / 32;
         my $sy = $::CFG->{map_shift_y}; my $sy0 = $sy & 31; $sy = ($sy - $sy0) / 32;

         glTranslate $sx0 - 32, $sy0 - 32, 0;

         my ($w, $h, $data) = $::MAP->draw ($sx, $sy, 0, 0, $sw + 1, $sh + 1);

         if ($::CFG->{fow_enable}) {
            if ($::CFG->{fow_smooth} && $CFClient::GL_VERSION >= 1.2) { # smooth fog of war
               glConvolutionParameter (GL_CONVOLUTION_2D, GL_CONVOLUTION_BORDER_MODE, GL_CONSTANT_BORDER);
               glConvolutionFilter2D (
                  GL_CONVOLUTION_2D,
                  GL_ALPHA,
                  3, 3,
                  GL_ALPHA, GL_FLOAT,
                  pack "f*",
                     0.1, 0.1, 0.1,
                     0.1, 0.2, 0.1,
                     0.1, 0.1, 0.1,
               );
               glEnable GL_CONVOLUTION_2D;
            }

            $self->{fow_texture} = new CFClient::Texture
               w              => $w,
               h              => $h,
               data           => $data,
               internalformat => GL_ALPHA,
               format         => GL_ALPHA;

            glDisable GL_CONVOLUTION_2D if $::CFG->{fow_smooth};

            glEnable GL_BLEND;
            glBlendFunc GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA;
            glEnable GL_TEXTURE_2D;
            glTexEnv GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE;

            glColor +($::CFG->{fow_intensity}) x 3, 1;
            $self->{fow_texture}->draw_quad (0, 0, $w * 32, $h * 32);

            glDisable GL_TEXTURE_2D;
            glDisable GL_BLEND;
         }

         # HACK BEGIN
         {
           glTranslate -($sx0 - 32), -($sy0 - 32), 0;#remove
           my ($w, $h) = (250, 250);

           glEnable GL_BLEND;
           glBlendFunc GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA;
           glEnable GL_TEXTURE_2D;
           glTexEnv GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE;

           $self->{mapmap_texture} =
              new CFClient::Texture
                 w    => $w,
                 h    => $h,
                 data => $::MAP->mapmap ($w, $h),
                 type => $CFClient::GL_VERSION >= 1.2 ? GL_UNSIGNED_INT_8_8_8_8_REV : GL_UNSIGNED_BYTE;

           $self->{mapmap_texture}->draw_quad (100, 100);

           glDisable GL_TEXTURE_2D;
           glDisable GL_BLEND;
         }
         # HACK END
      }

      glEndList;
   }

   glPushMatrix;
   glCallList $self->{list};
   glPopMatrix;

   if ($CFClient::UI::FOCUS != $self) {
      glColor 64/255, 64/255, 64/255;
      glLogicOp GL_AND;
      glEnable GL_COLOR_LOGIC_OP;
      glBegin GL_QUADS;
      glVertex 0, 0;
      glVertex 0, $::HEIGHT;
      glVertex $::WIDTH, $::HEIGHT;
      glVertex $::WIDTH, 0;
      glEnd;
      glDisable GL_COLOR_LOGIC_OP;
   }
}

my %DIR = (
   CFClient::SDLK_KP8, [1, "north"],
   CFClient::SDLK_KP9, [2, "northeast"],
   CFClient::SDLK_KP6, [3, "east"],
   CFClient::SDLK_KP3, [4, "southeast"],
   CFClient::SDLK_KP2, [5, "south"],
   CFClient::SDLK_KP1, [6, "southwest"],
   CFClient::SDLK_KP4, [7, "west"],
   CFClient::SDLK_KP7, [8, "northwest"],

   CFClient::SDLK_UP,    [1, "north"],
   CFClient::SDLK_RIGHT, [3, "east"],
   CFClient::SDLK_DOWN,  [5, "south"],
   CFClient::SDLK_LEFT,  [7, "west"],
);

sub key_down {
   my ($self, $ev) = @_;

   my $mod = $ev->key_mod;
   my $sym = $ev->key_sym;

   if ($sym == CFClient::SDLK_KP5) {
      $::CONN->user_send ("stay fire");
   } elsif ($sym == ord "a") {
      $::CONN->user_send ("apply");
   } elsif ($sym == ord "'") {
      $self->emit ('activate_console');
   } elsif ($sym == ord "/") {
      $self->emit ('activate_console' => '/');
   } elsif (exists $DIR{$sym}) {
      if ($mod & CFClient::KMOD_SHIFT) {
         $self->{shft}++;
         $::CONN->user_send ("fire $DIR{$sym}[0]");
      } elsif ($mod & CFClient::KMOD_CTRL) {
         $self->{ctrl}++;
         $::CONN->user_send ("run $DIR{$sym}[0]");
      } else {
         $::CONN->user_send ("$DIR{$sym}[1]");
      }
   }
}

sub key_up {
   my ($self, $ev) = @_;

   my $mod = $ev->key_mod;
   my $sym = $ev->key_sym;

   if (!($mod & CFClient::KMOD_SHIFT) && delete $self->{shft}) {
      $::CONN->user_send ("fire_stop");
   }
   if (!($mod & CFClient::KMOD_CTRL ) && delete $self->{ctrl}) {
      $::CONN->user_send ("run_stop");
   }
}

sub add_command {
   my ($self, $command, $widget, $cb) = @_;

   (my $abbrev = $command) =~ s/(\S)[^[:space:]_]*[[:space:]_]+/$1/g;
   warn "$command|$abbrev|$widget\n";#d#
}

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