turnaround.txt

来自「Visual C++ 游戏开发与设计实例 源代码(所有)」· 文本 代码 · 共 36 行

dirtest = true;
				// Count a integer step
				rt_mobile = m_ppTanks[i]->GetRect();
				step = m_ppTanks[i]->GetDirectionUnit();
				if ( step.y != 0 ) {								
					residue = m_ppTanks[i]->GetTop() % DEFTURNSTEP;
					if ( residue == 0 ) 
						dirtest = false;
					else if ( residue > DEFTURNSTEP/2 ) {	// down
						residue = DEFTURNSTEP - residue;
						rt_mobile.top += residue;
						rt_mobile.bottom += residue;
					} else {								// up
						rt_mobile.top -= residue;
						rt_mobile.bottom -= residue;
					}
				} else if ( step.x != 0 ) {
					residue = m_ppTanks[i]->GetLeft() % DEFTURNSTEP;
					if ( residue == 0 ) 
						dirtest = false;
					else if ( residue > DEFTURNSTEP/2 ) {	// right
						residue = DEFTURNSTEP - residue;
						rt_mobile.left += residue;
						rt_mobile.right += residue;
					} else {								// left
						rt_mobile.left -= residue;
						rt_mobile.right -= residue;
					}
				}
				// Test if it can move
				if ( dirtest ) {
					MapInfo.ColRToMobile( rt_mobile, step, (CMobileObject **)m_ppTanks, 10, i,
					m_ppTanks[i]->m_uiTeamType, false, hit );
					if ( hit < 0 )
						m_ppTanks[i]->SetPos( rt_mobile.left, rt_mobile.top );
				}