isOnCurrentHog and isOnCrosshair now look at the distance relative to the screen rather than world coords, this means that zooming out doesn't make it harder to touch the hog or crosshair
set(QT_USE_QTCORE TRUE)
find_package(Qt4 REQUIRED)
include(${QT_USE_FILE})
file(GLOB SRCS "*.c" "*.cpp")
file(GLOB PUBLIC_HEADERS "*.h")
qt4_wrap_cpp(MOC_SRCS "quazipfile.h")
set(SRCS ${SRCS} ${MOC_SRCS})
add_library(quazip STATIC ${SRCS})