inputbutton_to_axis_analog.h Source File

00001 /*
00002         $Id: inputbutton_to_axis_analog.h,v 1.1 2001/03/06 15:09:10 mbn Exp $
00003 
00004         ------------------------------------------------------------------------
00005         ClanLib, the platform independent game SDK.
00006 
00007         This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
00008         version 2. See COPYING for details.
00009 
00010         For a total list of contributers see CREDITS.
00011 
00012         ------------------------------------------------------------------------
00013 */
00014 
00016 
00017 #ifndef header_inputbutton_to_axis_analog
00018 #define header_inputbutton_to_axis_analog
00019 
00020 #include "../Input/inputbutton.h"
00021 #include "../Input/inputaxis.h"
00022 
00023 class CL_InputButtonToAxis_Analog : public CL_InputAxis
00024 //: Converts two CL_InputButton's into one analog CL_InputAxis. 
00025 {
00026         CL_InputButton *left;
00027         CL_InputButton *right;
00028         float cur_pos;
00029 
00030 public:
00031         CL_InputButtonToAxis_Analog(CL_InputButton *left, CL_InputButton *right)
00032         {
00033                 this->left = left;
00034                 this->right = right;
00035                 cur_pos = 0;
00036         }
00037         //: Constructs a button to axis converter using the two buttons 'left' 
00038         //: and 'right'.
00039 
00040         virtual float get_pos()
00041         {
00042                 if (left->is_pressed() && cur_pos>-0.1) cur_pos=(float)-0.1;
00043                 else if (right->is_pressed() && cur_pos<0.1) cur_pos=(float)0.1;
00044 
00045                 if (left->is_pressed() || right->is_pressed()) cur_pos*=(float)1.2;
00046                 else cur_pos*=(float)0.8;
00047 
00048                 if (cur_pos>1) cur_pos=1;
00049                 else if (cur_pos<-1) cur_pos=-1;
00050 
00051                 return cur_pos;
00052         }
00053         //: Returns the axis position.
00055 };
00056 
00057 #endif