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Java MathUtils.distanceSquared方法代码示例

本文整理汇总了Java中org.jbox2d.common.MathUtils.distanceSquared方法的典型用法代码示例。如果您正苦于以下问题:Java MathUtils.distanceSquared方法的具体用法?Java MathUtils.distanceSquared怎么用?Java MathUtils.distanceSquared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org.jbox2d.common.MathUtils的用法示例。


在下文中一共展示了MathUtils.distanceSquared方法的5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Java代码示例。

示例1: createLoop

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
/**
 * Create a loop. This automatically adjusts connectivity.
 * 
 * @param vertices an array of vertices, these are copied
 * @param count the vertex count
 */
public void createLoop(final Vec2[] vertices, int count) {
  assert (m_vertices == null && m_count == 0);
  assert (count >= 3);
  m_count = count + 1;
  m_vertices = new Vec2[m_count];
  for (int i = 1; i < count; i++) {
    Vec2 v1 = vertices[i - 1];
    Vec2 v2 = vertices[i];
    // If the code crashes here, it means your vertices are too close together.
    if (MathUtils.distanceSquared(v1, v2) < Settings.linearSlop * Settings.linearSlop) {
      throw new RuntimeException("Vertices of chain shape are too close together");
    }
  }
  for (int i = 0; i < count; i++) {
    m_vertices[i] = new Vec2(vertices[i]);
  }
  m_vertices[count] = new Vec2(m_vertices[0]);
  m_prevVertex.set(m_vertices[m_count - 2]);
  m_nextVertex.set(m_vertices[1]);
  m_hasPrevVertex = true;
  m_hasNextVertex = true;
}
 
开发者ID:jfcameron,项目名称:G2Dj,代码行数:29,代码来源:ChainShape.java

示例2: createChain

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
/**
 * Create a chain with isolated end vertices.
 * 
 * @param vertices an array of vertices, these are copied
 * @param count the vertex count
 */
public void createChain(final Vec2 vertices[], int count) {
  assert (m_vertices == null && m_count == 0);
  assert (count >= 2);
  m_count = count;
  m_vertices = new Vec2[m_count];
  for (int i = 1; i < m_count; i++) {
    Vec2 v1 = vertices[i - 1];
    Vec2 v2 = vertices[i];
    // If the code crashes here, it means your vertices are too close together.
    if (MathUtils.distanceSquared(v1, v2) < Settings.linearSlop * Settings.linearSlop) {
      throw new RuntimeException("Vertices of chain shape are too close together");
    }
  }
  for (int i = 0; i < m_count; i++) {
    m_vertices[i] = new Vec2(vertices[i]);
  }
  m_hasPrevVertex = false;
  m_hasNextVertex = false;

  m_prevVertex.setZero();
  m_nextVertex.setZero();
}
 
开发者ID:jfcameron,项目名称:G2Dj,代码行数:29,代码来源:ChainShape.java

示例3: createChain

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
/**
 * Create a chain with isolated end vertices.
 * 
 * @param vertices an array of vertices, these are copied
 * @param count the vertex count
 */
public void createChain(final Vec2 vertices[], int count) {
  assert (m_vertices == null && m_count == 0);
  assert (count >= 2);
  m_count = count;
  m_vertices = new Vec2[m_count];
  for (int i = 1; i < m_count; i++) {
    Vec2 v1 = vertices[i - 1];
    Vec2 v2 = vertices[i];
    // If the code crashes here, it means your vertices are too close together.
    if (MathUtils.distanceSquared(v1, v2) < Settings.linearSlop * Settings.linearSlop) {
      throw new RuntimeException("Vertices of chain shape are too close together");
    }
  }
  for (int i = 0; i < m_count; i++) {
    m_vertices[i] = new Vec2(vertices[i]);
  }
  m_hasPrevVertex = false;
  m_hasNextVertex = false;
}
 
开发者ID:weimingtom,项目名称:jbox2d,代码行数:26,代码来源:ChainShape.java

示例4: initialize

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
public void initialize(ContactConstraint cc, int index){
	assert(cc.pointCount > 0);
	
	switch (cc.type){
		case CIRCLES:{
			cc.bodyA.getWorldPointToOut(cc.localPoint, pointA);
			cc.bodyB.getWorldPointToOut(cc.points[0].localPoint, pointB);
			if (MathUtils.distanceSquared(pointA, pointB) > Settings.EPSILON * Settings.EPSILON){
				normal.set(pointB).subLocal(pointA);
				normal.normalize();
			}
			else{
				normal.set(1.0f, 0.0f);
			}

			point.set(pointA).addLocal(pointB).mulLocal(.5f);
			temp.set(pointB).subLocal(pointA);
			separation = Vec2.dot(temp, normal) - cc.radius;
			break;
		}

		case FACE_A:{
			cc.bodyA.getWorldVectorToOut(cc.localNormal, normal);
			cc.bodyA.getWorldPointToOut(cc.localPoint, planePoint);

			cc.bodyB.getWorldPointToOut(cc.points[index].localPoint, clipPoint);
			temp.set(clipPoint).subLocal(planePoint);
			separation = Vec2.dot(temp, normal) - cc.radius;
			point.set(clipPoint);
			break;
		}

		case FACE_B:
			{
				cc.bodyB.getWorldVectorToOut(cc.localNormal, normal);
				cc.bodyB.getWorldPointToOut(cc.localPoint, planePoint);

				cc.bodyA.getWorldPointToOut(cc.points[index].localPoint, clipPoint);
				temp.set(clipPoint).subLocal(planePoint);
				separation = Vec2.dot(temp, normal) - cc.radius;
				point.set(clipPoint);

				// Ensure normal points from A to B
				normal.negateLocal();
			}
		break;
	}
}
 
开发者ID:mleoking,项目名称:PhET,代码行数:49,代码来源:ContactSolver.java

示例5: initialize

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
public void initialize(TOIConstraint cc, int index){
	assert(cc.pointCount > 0);

	switch (cc.type){
		case CIRCLES : {
			cc.bodyA.getWorldPointToOut(cc.localPoint, pointA);
			cc.bodyB.getWorldPointToOut(cc.localPoints[0], pointB);
			if (MathUtils.distanceSquared(pointA, pointB) > Settings.EPSILON * Settings.EPSILON) {
				normal.set(pointB).subLocal(pointA);
				normal.normalize();
			}
			else {
				normal.set(1.0f, 0.0f);
			}
			
			point.set(pointA).addLocal(pointB).mulLocal(.5f);
			temp.set(pointB).subLocal(pointA);
			separation = Vec2.dot(temp, normal) - cc.radius;
			break;
		}
		case FACE_A : {
			cc.bodyA.getWorldVectorToOut(cc.localNormal, normal);
			cc.bodyA.getWorldPointToOut(cc.localPoint, planePoint);
			
			cc.bodyB.getWorldPointToOut(cc.localPoints[index], clipPoint);
			temp.set(clipPoint).subLocal(planePoint);
			separation = Vec2.dot(temp, normal) - cc.radius;
			point.set(clipPoint);
			break;
		}
		
		case FACE_B : {
			cc.bodyB.getWorldVectorToOut(cc.localNormal, normal);
			cc.bodyB.getWorldPointToOut(cc.localPoint, planePoint);
			
			cc.bodyA.getWorldPointToOut(cc.localPoints[index], clipPoint);
			temp.set(clipPoint).subLocal(planePoint);
			separation = Vec2.dot(temp, normal) - cc.radius;
			point.set(clipPoint);
			
			// Ensure normal points from A to B
			normal.negateLocal();
		}
			break;
	}
}
 
开发者ID:mleoking,项目名称:PhET,代码行数:47,代码来源:TOISolver.java


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