int main()
{
Shape *shape = new Circle;
shape->Draw();
Circle *circle = dynamic_cast<Circle*>(shape);
circle->Draw();
Circle *oneMore = Dynamic_Cast<Circle*,Shape*>(shape);
oneMore->Draw();
Circle *nope = Dynamic_Cast<Circle*,Shape*>(shape); // <-- Fix this line from Circle *nope = dynamic_cast<Circle*,Shape*>(shape);
//system("pause");
}
int main()
{
Shape s;
s.Move(100, 100);
s.Draw();
Rectangle r;
r.Move(200, 100);
r.Resize( 50, 50);
r.Draw();
Circle c;
c.Move( 300, 100);
c.SetRadius(30);
c.Draw();
return 0;
}
void CalcDist::Excute()
{
m_cursor = LoadCursor(g_hInst, MAKEINTRESOURCE(IDC_CURSOR2));
m_oldCursor = SetCursor(m_cursor);
HDC hdc = GetDC(m_hWnd);
HDC memoryDC = CreateCompatibleDC(hdc);
HBITMAP memoryBitmap = CreateCompatibleBitmap(hdc, m_maxWidth, m_maxHeight);
HBITMAP oldBitmap = (HBITMAP)SelectObject(memoryDC, memoryBitmap);
WCHAR temp[100] = { 0, };
Rectangle(memoryDC, 0, 0, m_maxWidth, m_maxHeight); //흰색 바탕 칠하기
/* line 그리기 */
// y = ax + b
// ax - y + b = 0;
double x1 = 550, y1 = -100, x2 = 250, y2 = 900;
double angle = (y2 - y1) / (x2 - x1); // a
double b = -angle * x2 + y2; // b
double distance = abs(angle * g_mousex - g_mousey + b) / sqrt(angle*angle + 1);
MoveToEx(memoryDC, x1, y1, PS_SOLID);
LineTo(memoryDC, x2, y2);
/*법선그리기*/
double crossAngle = -1 / angle; //법선 기울기
// ax + b = y
// b = y - ax
double crossB = g_mousey - crossAngle * g_mousex;
double crossX = -(b - crossB) / (angle - crossAngle);
double crossY = crossX * crossAngle + crossB;
MoveToEx(memoryDC, crossX, crossY, PS_SOLID);
LineTo(memoryDC, g_mousex, g_mousey);
Circle myCircle = Circle(g_mousex, g_mousey, 20.0);
Circle targetCircle = Circle(500, 300, 60);
RECT targetRect = RECT();
targetRect.bottom = 350;
targetRect.top = 250;
targetRect.left = 100;
targetRect.right = 200;
COLORREF targetRectColor;
if (CollideChecker::IsCollision(targetRect, myCircle))
targetRectColor = RGB(255, 0, 0);
else
targetRectColor = RGB(0, 0, 255);
COLORREF targetCircleColor;
if (CollideChecker::IsCollision(myCircle, targetCircle))
targetCircleColor = RGB(200, 200, 0);
else
targetCircleColor = RGB(0, 200, 200);
COLORREF myColor = RGB(20, 100, 100);
DrawRectWithColor(memoryDC, targetRect, targetRectColor);
targetCircle.Draw(memoryDC, targetCircleColor);
myCircle.Draw(memoryDC, myColor);
MoveToEx(memoryDC, targetCircle.m_cx, targetCircle.m_cy, PS_SOLID);
LineTo(memoryDC, myCircle.m_cx, myCircle.m_cy);
wsprintf(temp, L"X : %d", (int)g_mousex);
TextOut(memoryDC, 10, 10, temp, lstrlen(temp));
wsprintf(temp, L"Y : %d", (int)g_mousey);
TextOut(memoryDC, 10, 30, temp, lstrlen(temp));
wsprintf(temp, L"Distance : %d", (int)distance);
TextOut(memoryDC, 10, 50, temp, lstrlen(temp));
//memoryDC에 버퍼링된 이미지 그리기.
BitBlt(hdc, 0, 0, m_maxWidth, m_maxHeight, memoryDC, 0, 0, SRCCOPY);
/* 리소스 반환 */
//memoryDC 제거
SelectObject(memoryDC, oldBitmap);
DeleteDC(memoryDC);
DeleteObject(memoryBitmap);
ReleaseDC(m_hWnd, hdc);
}