From 9ab0c3e066b2c0b48daed461e80c7bb22bc6803f Mon Sep 17 00:00:00 2001
From: manuel <manuel@mausz.at>
Date: Thu, 14 Apr 2011 23:29:50 +0200
Subject: fix wrong left shift which fixes the invisible fourth player :)

---
 pacman-c++/actor.cpp      |  3 ++-
 pacman-c++/block.cpp      |  3 ++-
 pacman-c++/constants.h    |  2 +-
 pacman-c++/mainwidget.cpp |  3 ++-
 pacman-c++/util.cpp       | 14 ++++++++++++++
 pacman-c++/util.h         |  2 ++
 6 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/pacman-c++/actor.cpp b/pacman-c++/actor.cpp
index 3af304c..e8f5496 100644
--- a/pacman-c++/actor.cpp
+++ b/pacman-c++/actor.cpp
@@ -1,4 +1,5 @@
 #include "actor.h"
+#include "util.h"
 #include <QtCore/QPropertyAnimation>
 #include <QtCore/QVariantAnimation>
 #include <QDebug>
@@ -24,7 +25,7 @@ Actor::Actor(Color::Color color, bool local, QGraphicsItem *parent)
     return;
 
   /* our actor pixmap. created after server part */
-  m_pix  = ":/" + QString("actor%1").arg((m_color >> 1) + 1);
+  m_pix  = ":/" + QString("actor%1").arg(Util::floorLog2(color) + 1);
 
   /* setup icon for player */
   m_icon.setPixmap(m_pix);
diff --git a/pacman-c++/block.cpp b/pacman-c++/block.cpp
index c6aaa73..16f62c4 100644
--- a/pacman-c++/block.cpp
+++ b/pacman-c++/block.cpp
@@ -1,6 +1,7 @@
 #include "block.h"
 #include "constants.h"
 #include "actor.h"
+#include "util.h"
 #include <QtDebug>
 
 QMap<Color::Color, QPixmap> Block::m_pixmaps;
@@ -14,7 +15,7 @@ Block::Block(Color::Color color, unsigned int neighbours, QGraphicsItem *parent)
 
   if (m_pixmaps.find(color) == m_pixmaps.end())
   {
-    unsigned int colid = (color == Color::none) ? 0 : (color >> 1) + 1;
+    unsigned int colid = (color == Color::none) ? 0 : Util::floorLog2(color) + 1;
     QString pixmapName = ":/" + QString("block%1").arg(colid);
     m_pixmaps[color] = QPixmap(pixmapName);
   }
diff --git a/pacman-c++/constants.h b/pacman-c++/constants.h
index 7ce26ad..a14e623 100644
--- a/pacman-c++/constants.h
+++ b/pacman-c++/constants.h
@@ -65,7 +65,7 @@ namespace Transmission
   const field_t direction_up    = (1 << 11);
   const field_t direction_down  = (1 << 12);
 
-  const mask_t color_mask = Color::none | Color::red | Color::blue | Color::green;
+  const mask_t color_mask = Color::none | Color::red | Color::blue | Color::green | Color::yellow;
   const mask_t type_mask = block | bonuspoint;
   const mask_t direction_mask = direction_none | direction_left | direction_right | direction_up | direction_down;
 
diff --git a/pacman-c++/mainwidget.cpp b/pacman-c++/mainwidget.cpp
index daa5806..705a3ca 100644
--- a/pacman-c++/mainwidget.cpp
+++ b/pacman-c++/mainwidget.cpp
@@ -72,9 +72,10 @@ void MainWidget::createGui()
     QGroupBox *scoreBox = new QGroupBox(QString("Player %1").arg(i + 1), this);
     scoreBox->setObjectName(QString("actor%1").arg(i + 1));
     scoreBox->setCheckable(true);
+    scoreBox->setDisabled(i >= m_maxplayers);
     connect(scoreBox, SIGNAL(clicked()), this, SLOT(playerScoreClicked()));
+
     scoreBox->setLayout(playerLayout);
-    scoreBox->setDisabled(i >= m_maxplayers);
     m_playerScoreLayouts.append(playerLayout);
 
     if (Color::order[i] == m_scene->color())
diff --git a/pacman-c++/util.cpp b/pacman-c++/util.cpp
index b1848e1..2a3b78a 100644
--- a/pacman-c++/util.cpp
+++ b/pacman-c++/util.cpp
@@ -248,6 +248,20 @@ namespace Util
     return data;
   }
 
+  int floorLog2(unsigned int n)
+  {
+    if (n == 0)
+      return -1;
+
+    int pos = 0;
+    if (n >= 1<<16) { n >>= 16; pos += 16; }
+    if (n >= 1<< 8) { n >>=  8; pos +=  8; }
+    if (n >= 1<< 4) { n >>=  4; pos +=  4; }
+    if (n >= 1<< 2) { n >>=  2; pos +=  2; }
+    if (n >= 1<< 1) {           pos +=  1; }
+    return pos;
+  }
+
 #if 0
   void hexdump(void *pAddressIn, long  lSize)
   {
diff --git a/pacman-c++/util.h b/pacman-c++/util.h
index 5ea2953..a9ddbee 100644
--- a/pacman-c++/util.h
+++ b/pacman-c++/util.h
@@ -27,6 +27,8 @@ namespace Util
   bool sendPacket(const ::google::protobuf::MessageLite& packet, QTcpSocket *socket);
   QSharedPointer<QByteArray> receivePacket(QTcpSocket *socket);
 
+  int floorLog2(unsigned int n);
+
 #if 0
   void hexdump(void *pAddressIn, long  lSize);
 #endif
-- 
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