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C++ Constraints::get_position_left方法代码示例

本文整理汇总了C++中Constraints::get_position_left方法的典型用法代码示例。如果您正苦于以下问题:C++ Constraints::get_position_left方法的具体用法?C++ Constraints::get_position_left怎么用?C++ Constraints::get_position_left使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Constraints的用法示例。


在下文中一共展示了Constraints::get_position_left方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: Vector

void
Sector::collision_static_constrains(MovingObject& object)
{
  using namespace collision;
  float infinity = (std::numeric_limits<float>::has_infinity ? std::numeric_limits<float>::infinity() : std::numeric_limits<float>::max());

  Constraints constraints;
  Vector movement = object.get_movement();
  Vector pressure = Vector(0,0);
  Rectf& dest = object.dest;

  for(int i = 0; i < 2; ++i) {
    collision_static(&constraints, Vector(0, movement.y), dest, object);
    if(!constraints.has_constraints())
      break;

    // apply calculated horizontal constraints
    if(constraints.get_position_bottom() < infinity) {
      float height = constraints.get_height ();
      if(height < object.get_bbox().get_height()) {
        // we're crushed, but ignore this for now, we'll get this again
        // later if we're really crushed or things will solve itself when
        // looking at the vertical constraints
        pressure.y += object.get_bbox().get_height() - height;
      } else {
        dest.p2.y = constraints.get_position_bottom() - DELTA;
        dest.p1.y = dest.p2.y - object.get_bbox().get_height();
      }
    } else if(constraints.get_position_top() > -infinity) {
      dest.p1.y = constraints.get_position_top() + DELTA;
      dest.p2.y = dest.p1.y + object.get_bbox().get_height();
    }
  }
  if(constraints.has_constraints()) {
    if(constraints.hit.bottom) {
      dest.move(constraints.ground_movement);
    }
    if(constraints.hit.top || constraints.hit.bottom) {
      constraints.hit.left = false;
      constraints.hit.right = false;
      object.collision_solid(constraints.hit);
    }
  }

  constraints = Constraints();
  for(int i = 0; i < 2; ++i) {
    collision_static(&constraints, movement, dest, object);
    if(!constraints.has_constraints())
      break;

    // apply calculated vertical constraints
    float width = constraints.get_width ();
    if(width < infinity) {
      if(width + SHIFT_DELTA < object.get_bbox().get_width()) {
        // we're crushed, but ignore this for now, we'll get this again
        // later if we're really crushed or things will solve itself when
        // looking at the horizontal constraints
        pressure.x += object.get_bbox().get_width() - width;
      } else {
        float xmid = constraints.get_x_midpoint ();
        dest.p1.x = xmid - object.get_bbox().get_width()/2;
        dest.p2.x = xmid + object.get_bbox().get_width()/2;
      }
    } else if(constraints.get_position_right() < infinity) {
      dest.p2.x = constraints.get_position_right() - DELTA;
      dest.p1.x = dest.p2.x - object.get_bbox().get_width();
    } else if(constraints.get_position_left() > -infinity) {
      dest.p1.x = constraints.get_position_left() + DELTA;
      dest.p2.x = dest.p1.x + object.get_bbox().get_width();
    }
  }

  if(constraints.has_constraints()) {
    if( constraints.hit.left || constraints.hit.right
        || constraints.hit.top || constraints.hit.bottom
        || constraints.hit.crush )
      object.collision_solid(constraints.hit);
  }

  // an extra pass to make sure we're not crushed vertically
  if (pressure.y > 0) {
    constraints = Constraints();
    collision_static(&constraints, movement, dest, object);
    if(constraints.get_position_bottom() < infinity) {
      float height = constraints.get_height ();
      if(height + SHIFT_DELTA < object.get_bbox().get_height()) {
        CollisionHit h;
        h.top = true;
        h.bottom = true;
        h.crush = pressure.y > 16;
        object.collision_solid(h);
      }
    }
  }

  // an extra pass to make sure we're not crushed horizontally
  if (pressure.x > 0) {
    constraints = Constraints();
    collision_static(&constraints, movement, dest, object);
    if(constraints.get_position_right() < infinity) {
//.........这里部分代码省略.........
开发者ID:hongtaox,项目名称:supertux,代码行数:101,代码来源:sector.cpp


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