關於雙緩衝 和 onerasebkgnd(cdc* pdc) 的資料請看我部落格的文章。
我是用vc6建立乙個.exe 的文字空間，即再在view類中新增檔案，我將這部分的**貼出
大家可以交流下，如有不好之處，請見諒！
// mfc_snackeview.cpp : implementation of the cmfc_snackeview class
//#include "stdafx.h"
#include "mfc_snacke.h"
#include "mfc_snackedoc.h"
#include "mfc_snackeview.h"
#include #include #include #ifdef _debug
#define new debug_new
#undef this_file
static char this_file = __file__;
#endif
/// cmfc_snackeview
implement_dyncreate(cmfc_snackeview, cview)
begin_message_map(cmfc_snackeview, cview)
//}afx_msg_map
// standard printing commands
on_command(id_file_print, cview::onfileprint)
on_command(id_file_print_direct, cview::onfileprint)
on_command(id_file_print_preview, cview::onfileprintpreview)
end_message_map()
/// cmfc_snackeview construction/destruction
cmfc_snackeview::cmfc_snackeview()
cmfc_snackeview::~cmfc_snackeview()
bool cmfc_snackeview::precreatewindow(createstruct& cs)
/// cmfc_snackeview drawing
void cmfc_snackeview::ondraw(cdc* pdc) //畫介面
//draw body of snake
cpoint b;
memdc.selectstockobject(gray_brush);
for(int i = 1; i <= m_body.getupperbound(); i++)
//draw a food
cbrush br;
br.createsolidbrush(rgb(0, 255, 0));
memdc.selectobject(br);
memdc.fillrect(crect(m_food.x, m_food.y, m_food.x+20, m_food.y+20), &br);
memdc.rectangle(crect(m_food.x, m_food.y, m_food.x+20, m_food.y+20));
//將記憶體中圖拷貝到螢幕上進行顯示
pdc->bitblt(0, 0, rect.width(), rect.height(), &memdc, 0, 0, srccopy);
//繪圖完成後的清理
membitmap.deleteobject();
memdc.deletedc();}/
// cmfc_snackeview printing
bool cmfc_snackeview::onprepareprinting(cprintinfo* pinfo)
void cmfc_snackeview::onbeginprinting(cdc* , cprintinfo* )
void cmfc_snackeview::onendprinting(cdc* , cprintinfo* )
/// cmfc_snackeview diagnostics
#ifdef _debug
void cmfc_snackeview::assertvalid() const
void cmfc_snackeview::dump(cdumpcontext& dc) const
cmfc_snackedoc* cmfc_snackeview::getdocument() // non-debug version is inline
#endif //_debug
/// cmfc_snackeview message handlers
void cmfc_snackeview::initial_game() //遊戲地圖的初始化
void cmfc_snackeview::create_food()
}if(!prove)
break;
} }m_food = cpoint(x, y);
}void cmfc_snackeview::gamestart() //開始遊戲哦
void cmfc_snackeview::ontimer(uint nidevent) //wm_timer訊息
void cmfc_snackeview::move() //蛇移動函式
int over = 0;
cpoint t;
//蛇頭是否吃到自己
for(int i = 0; i <= m_body.getupperbound(); i++) }
if(!check(head) || over)
else
else
m_body.removeat(m_body.getupperbound());
}
//使整個視窗客戶區無效,意味著需要重繪,即呼叫ondraw函式
//invalidaterect(crect(39, 39, 839, 489));
invalidate();
}//鍵盤按鍵判斷
void cmfc_snackeview::onkeydown(uint nchar, uint nrepcnt, uint nflags)
} cview::onkeydown(nchar, nrepcnt, nflags);
}//判斷是否出界
int cmfc_snackeview::check(cpoint head)
void cmfc_snackeview::oneasy()
void cmfc_snackeview::onmedium()
void cmfc_snackeview::onhard()
bool cmfc_snackeview::onerasebkgnd(cdc* pdc)
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