HitTestResult* hitTestStripRound(StripBodyNode* a, RoundBodyNode* b)
{
Point cb = b->getCenter();
float rb = b->getRadius();
Point ca = a->getCenter();
Vector2 ava = a->getEnd() - a->getBegin();
float ha = a->getWidth();
float wa = ccpLength(ava);
float ra = a->getRadius();
Point rrp;
ava = ava/wa;
bool hit = isRoundCrossRect(cb, rb, ca, wa, ha, ava);
if(hit)
{
Point hp;
float distance;
Point ba = a->getBegin();
Vector2 delta = ba - cb;
float deltaLength = ccpLength(delta);
hp = cb + delta/deltaLength * rb;
distance = deltaLength - rb;
return HitTestResult::create(HTRT_CROSS, hp, distance);
}
else
{
return HitTestResult::create(HTRT_NONE);
}
}
void AniNode::update(float delta)
{
if (ccpLength(aniNode_moveSpeed) != 0 || ccpLength(aniNode_accMoveSpeed) != 0) {
CCPoint dis = ccpAdd(ccpMult(aniNode_moveSpeed, delta), ccpMult(aniNode_accMoveSpeed, 0.5 * delta * delta));
this->setPosition(ccpAdd(this->getPosition(), dis));
aniNode_moveSpeed = ccpAdd(aniNode_moveSpeed, ccpMult(aniNode_accMoveSpeed, delta));
}
if (aniNode_rotateSpeed != 0 || aniNode_accRotateSpeed != 0) {
float rot = aniNode_rotateSpeed * delta + 0.5 * aniNode_accRotateSpeed * delta * delta;
this->setRotation(this->getRotation() + rot);
aniNode_rotateSpeed = aniNode_rotateSpeed + aniNode_accRotateSpeed * delta;
}
}
void CCTwirl::update(float time)
{
int i, j;
CCPoint c = m_position;
for (i = 0; i < (m_sGridSize.width+1); ++i)
{
for (j = 0; j < (m_sGridSize.height+1); ++j)
{
ccVertex3F v = originalVertex(ccp(i ,j));
CCPoint avg = ccp(i-(m_sGridSize.width/2.0f), j-(m_sGridSize.height/2.0f));
float r = ccpLength(avg);
float amp = 0.1f * m_fAmplitude * m_fAmplitudeRate;
float a = r * cosf( (float)M_PI/2.0f + time * (float)M_PI * m_nTwirls * 2 ) * amp;
CCPoint d = ccp(
sinf(a) * (v.y-c.y) + cosf(a) * (v.x-c.x),
cosf(a) * (v.y-c.y) - sinf(a) * (v.x-c.x));
v.x = c.x + d.x;
v.y = c.y + d.y;
setVertex(ccp(i ,j), v);
}
}
}
void CCTwirl::update(ccTime time)
{
int i, j;
CCPoint c = m_positionInPixels;
for (i = 0; i < (m_sGridSize.x+1); ++i)
{
for (j = 0; j < (m_sGridSize.y+1); ++j)
{
ccVertex3F v = originalVertex(ccg(i ,j));
CCPoint avg = ccp(i-(m_sGridSize.x/2.0f), j-(m_sGridSize.y/2.0f));
CGFloat r = ccpLength(avg);
CGFloat amp = 0.1f * m_fAmplitude * m_fAmplitudeRate;
CGFloat a = r * cosf( (CGFloat)M_PI/2.0f + time * (CGFloat)M_PI * m_nTwirls * 2 ) * amp;
CCPoint d;
d.x = sinf(a) * (v.y-c.y) + cosf(a) * (v.x-c.x);
d.y = cosf(a) * (v.y-c.y) - sinf(a) * (v.x-c.x);
v.x = c.x + d.x;
v.y = c.y + d.y;
setVertex(ccg(i ,j), v);
}
}
}
HitTestResult* hitTestRectRound(RectBodyNode* a, RoundBodyNode* b)
{
Point ca = a->getCenter();
float wa = a->getWidth();
float ha = a->getHeight();
float aa = CC_DEGREES_TO_RADIANS(-a->getAngle());
float ra = a->getRadius();
Point cb = b->getCenter();
float rb = b->getRadius();
bool hit = isRoundCrossRect(cb, rb, ca, wa, ha, ccpForAngle(aa));
if(hit)
{
Point hp;
float distance;
Vector2 delta = ca - cb;
float deltaLength = ccpLength(delta);
hp = cb + delta/deltaLength * rb;
distance = deltaLength - rb;
return HitTestResult::create(HTRT_CROSS, hp, distance);
}
else
{
return HitTestResult::create(HTRT_NONE);
}
}
void BWCircleBy::startWithTarget(CCNode *pTarget)
{
BWActionInterval::startWithTarget(pTarget);
m_previousPosition = m_startPosition = pTarget->getPosition();
float fDis = ccpLength(m_dirPoint);
m_fA = fDis*0.5;
}
void CCMoveAccelBy::calcAccel()
{
//all scalars: s a v t
float t = m_fDuration;
s = ccpLength( m_delta );
a = (s - v * t) / (0.5f * t * t);
}
void Solider::setTarget(CCPoint _target)
{
m_ID = MOVE;
timeMove = 0;
m_targetPos = _target;
timeFinishMove = ccpLength(ccpSub(m_targetPos, m_pos))/ m_maxVelocity/60;
}
void CircleBy::startWithTarget(CCNode *pTarget)
{
ActionInterval::startWithTarget(pTarget);
m_startPosition = pTarget->getPosition();
float fDistance = ccpLength(m_dirPoint);
m_fA = fDistance * 0.5;
}
void LFTwirl::preCalculateDistance()
{
setPosition(m_pTarget->getPosition());
// gridDistanceArray = new float[ (m_sGridSize.x + 1) * (m_sGridSize.y + 1) ];
//Richard
// 原先类型为int 现在CCSize为float 墙砖为int
gridDistanceArray = new float[ ((int)m_sGridSize.width + 1) * ((int)m_sGridSize.height + 1) ];
int i, j;
int index = 0;
for (i = 0; i < m_sGridSize.width + 1; ++i)
{
for (j = 0; j < m_sGridSize.height + 1; ++j)
{
ccVertex3F v = originalVertex(ccp(i, j));
CCPoint relativedPos = ccp(v.x - m_position.x,v.y - m_position.y);
float dis = ccpLength(relativedPos) + 1.0f;
gridDistanceArray[index] = dis;
index ++;
}
}
// setPosition(m_pTarget->getPosition());
}
void CCCurl::startWithTarget(CCNode* pTarget) {
CCActionInterval::startWithTarget(pTarget);
// get start radius
CCPoint v = ccpSub(pTarget->getPosition(), m_center);
m_fromRadius = ccpLength(v);
m_initAngle = v.getAngle();
}
//--------------------------------------------------------------------
void FKCW_Action_Curl::startWithTarget(CCNode* pTarget)
{
CCActionInterval::startWithTarget(pTarget);
// 获取起始半径和角度
CCPoint v = ccpSub(pTarget->getPosition(), m_center);
m_fromRadius = ccpLength(v);
m_initAngle = v.getAngle();
}
void BWSineBy::startWithTarget(CCNode *pTarget)
{
BWActionInterval::startWithTarget(pTarget);
m_previousPosition = m_startPosition = pTarget->getPosition();
float fDis = ccpLength(m_endPosition);
m_fW = 2*M_PI/fDis;
}
void CCLayerGradient::updateColor()
{
CCLayerColor::updateColor();
float h = ccpLength(m_AlongVector);
if (h == 0)
return;
double c = sqrt(2.0);
CCPoint u = ccp(m_AlongVector.x / h, m_AlongVector.y / h);
// Compressed Interpolation mode
if (m_bCompressedInterpolation)
{
float h2 = 1 / ( fabsf(u.x) + fabsf(u.y) );
u = ccpMult(u, h2 * (float)c);
}
float opacityf = (float)m_cOpacity / 255.0f;
ccColor4B S = {
(unsigned char) m_tColor.r,
(unsigned char) m_tColor.g,
(unsigned char) m_tColor.b,
(unsigned char) (m_cStartOpacity * opacityf)
};
ccColor4B E = {
(unsigned char) m_endColor.r,
(unsigned char) m_endColor.g,
(unsigned char) m_endColor.b,
(unsigned char) (m_cEndOpacity * opacityf)
};
// (-1, -1)
m_pSquareColors[0].r = (GLubyte) (E.r + (S.r - E.r) * ((c + u.x + u.y) / (2.0f * c)));
m_pSquareColors[0].g = (GLubyte) (E.g + (S.g - E.g) * ((c + u.x + u.y) / (2.0f * c)));
m_pSquareColors[0].b = (GLubyte) (E.b + (S.b - E.b) * ((c + u.x + u.y) / (2.0f * c)));
m_pSquareColors[0].a = (GLubyte) (E.a + (S.a - E.a) * ((c + u.x + u.y) / (2.0f * c)));
// (1, -1)
m_pSquareColors[1].r = (GLubyte) (E.r + (S.r - E.r) * ((c - u.x + u.y) / (2.0f * c)));
m_pSquareColors[1].g = (GLubyte) (E.g + (S.g - E.g) * ((c - u.x + u.y) / (2.0f * c)));
m_pSquareColors[1].b = (GLubyte) (E.b + (S.b - E.b) * ((c - u.x + u.y) / (2.0f * c)));
m_pSquareColors[1].a = (GLubyte) (E.a + (S.a - E.a) * ((c - u.x + u.y) / (2.0f * c)));
// (-1, 1)
m_pSquareColors[2].r = (GLubyte) (E.r + (S.r - E.r) * ((c + u.x - u.y) / (2.0f * c)));
m_pSquareColors[2].g = (GLubyte) (E.g + (S.g - E.g) * ((c + u.x - u.y) / (2.0f * c)));
m_pSquareColors[2].b = (GLubyte) (E.b + (S.b - E.b) * ((c + u.x - u.y) / (2.0f * c)));
m_pSquareColors[2].a = (GLubyte) (E.a + (S.a - E.a) * ((c + u.x - u.y) / (2.0f * c)));
// (1, 1)
m_pSquareColors[3].r = (GLubyte) (E.r + (S.r - E.r) * ((c - u.x - u.y) / (2.0f * c)));
m_pSquareColors[3].g = (GLubyte) (E.g + (S.g - E.g) * ((c - u.x - u.y) / (2.0f * c)));
m_pSquareColors[3].b = (GLubyte) (E.b + (S.b - E.b) * ((c - u.x - u.y) / (2.0f * c)));
m_pSquareColors[3].a = (GLubyte) (E.a + (S.a - E.a) * ((c - u.x - u.y) / (2.0f * c)));
}
void CGradientView::updateColor()
{
CColorView::updateColor();
float h = ccpLength(m_tAlongVector);
if( (int)h == 0 )
return;
float c = sqrtf(2.0f);
CCPoint u = CCPoint(m_tAlongVector.x / h, m_tAlongVector.y / h);
// Compressed Interpolation mode
if( m_bCompressedInterpolation )
{
float h2 = 1 / ( fabsf(u.x) + fabsf(u.y) );
u = ccpMult(u, h2 * (float)c);
}
float opacityf = (float)_displayedOpacity / 255.0f;
ccColor4F S = {
_displayedColor.r / 255.0f,
_displayedColor.g / 255.0f,
_displayedColor.b / 255.0f,
m_cStartOpacity * opacityf / 255.0f
};
ccColor4F E = {
m_tEndColor.r / 255.0f,
m_tEndColor.g / 255.0f,
m_tEndColor.b / 255.0f,
m_cEndOpacity * opacityf / 255.0f
};
// (-1, -1)
m_pSquareColors[0].r = E.r + (S.r - E.r) * ((c + u.x + u.y) / (2.0f * c));
m_pSquareColors[0].g = E.g + (S.g - E.g) * ((c + u.x + u.y) / (2.0f * c));
m_pSquareColors[0].b = E.b + (S.b - E.b) * ((c + u.x + u.y) / (2.0f * c));
m_pSquareColors[0].a = E.a + (S.a - E.a) * ((c + u.x + u.y) / (2.0f * c));
// (1, -1)
m_pSquareColors[1].r = E.r + (S.r - E.r) * ((c - u.x + u.y) / (2.0f * c));
m_pSquareColors[1].g = E.g + (S.g - E.g) * ((c - u.x + u.y) / (2.0f * c));
m_pSquareColors[1].b = E.b + (S.b - E.b) * ((c - u.x + u.y) / (2.0f * c));
m_pSquareColors[1].a = E.a + (S.a - E.a) * ((c - u.x + u.y) / (2.0f * c));
// (-1, 1)
m_pSquareColors[2].r = E.r + (S.r - E.r) * ((c + u.x - u.y) / (2.0f * c));
m_pSquareColors[2].g = E.g + (S.g - E.g) * ((c + u.x - u.y) / (2.0f * c));
m_pSquareColors[2].b = E.b + (S.b - E.b) * ((c + u.x - u.y) / (2.0f * c));
m_pSquareColors[2].a = E.a + (S.a - E.a) * ((c + u.x - u.y) / (2.0f * c));
// (1, 1)
m_pSquareColors[3].r = E.r + (S.r - E.r) * ((c - u.x - u.y) / (2.0f * c));
m_pSquareColors[3].g = E.g + (S.g - E.g) * ((c - u.x - u.y) / (2.0f * c));
m_pSquareColors[3].b = E.b + (S.b - E.b) * ((c - u.x - u.y) / (2.0f * c));
m_pSquareColors[3].a = E.a + (S.a - E.a) * ((c - u.x - u.y) / (2.0f * c));
}
void CCLens3D::update(ccTime time)
{
CC_UNUSED_PARAM(time);
if (m_bDirty)
{
int i, j;
for (i = 0; i < m_sGridSize.x + 1; ++i)
{
for (j = 0; j < m_sGridSize.y + 1; ++j)
{
ccVertex3F v = originalVertex(ccg(i, j));
CCPoint vect = ccpSub(m_positionInPixels, ccp(v.x, v.y));
CGFloat r = ccpLength(vect);
if (r < m_fRadius)
{
r = m_fRadius - r;
CGFloat pre_log = r / m_fRadius;
if ( pre_log == 0 )
{
pre_log = 0.001f;
}
float l = logf(pre_log) * m_fLensEffect;
float new_r = expf( l ) * m_fRadius;
if (ccpLength(vect) > 0)
{
vect = ccpNormalize(vect);
CCPoint new_vect = ccpMult(vect, new_r);
v.z += ccpLength(new_vect) * m_fLensEffect;
}
}
setVertex(ccg(i, j), v);
}
}
m_bDirty = false;
}
}
void CCLens3D::update(float time)
{
CC_UNUSED_PARAM(time);
if (m_bDirty)
{
int i, j;
for (i = 0; i < m_sGridSize.width + 1; ++i)
{
for (j = 0; j < m_sGridSize.height + 1; ++j)
{
ccVertex3F v = originalVertex(ccp(i, j));
CCPoint vect = ccpSub(m_tPoint, ccp(v.x, v.y));
float r = ccpLength(vect);
if (r < m_fRadius)
{
r = m_fRadius - r;
float pre_log = r / m_fRadius;
if ( pre_log == 0 )
{
pre_log = 0.001f;
}
float l = logf(pre_log) * m_fLensEffect;
float new_r = expf( l ) * m_fRadius;
if (ccpLength(vect) > 0)
{
vect = ccpNormalize(vect);
CCPoint new_vect = ccpMult(vect, new_r);
v.z += (m_bConcave ? -1.0f : 1.0f) * ccpLength(new_vect) * m_fLensEffect;
}
}
setVertex(ccp(i, j), v);
}
}
m_bDirty = false;
}
}
void CCBigImage::setPosition(const CCPoint &newPosition)
{
float significantPositionDelta = MIN(this->_screenLoadRectExtension.width,
this->_screenLoadRectExtension.height) / 2.0f;
if ( ccpLength(ccpSub(newPosition, this->getPosition())) > significantPositionDelta ) {
this->_significantPositionChange = true;
}
CCNode::setPosition(newPosition);
}
bool CircleBy::init(float t, CCPoint dirPoint,float fB)
{
if (ActionInterval::initWithDuration(t))
{
m_dirPoint = dirPoint;
m_fA = ccpLength(dirPoint);
m_fB = fB;
m_bClock = false;
return true;
}
return false;
}
CCPoint calculateCosASinAOfVec1ToVec2(const CCPoint&vec1,const CCPoint&vec2)
//return {cos(vec1,vec2),sin(vec1,vec2)}
{
float cosA=ccpDot(vec1, vec2)/(ccpLength(vec1)*ccpLength(vec2));
float signalOfSinA;
{
float _vec1[3]={vec1.x,vec1.y,0};
float _vec2[3]={vec2.x,vec2.y,0};
float _rs[3];
__cross(_vec1, _vec2, _rs);
if (_rs[2]==0) {
signalOfSinA=0;
}else if(_rs[2]>0){
signalOfSinA=1;
}else{
signalOfSinA=-1;
}
}
float sinA=signalOfSinA*sqrtf(MAX(0,1-cosA*cosA));
return CCPoint(cosA,sinA);
}
void CCMotionStreak::update(ccTime delta)
{
CCPoint location = this->convertToWorldSpace(CCPointZero);
m_pRibbon->setPosition(ccp(-1*location.x, -1*location.y));
float len = ccpLength(ccpSub(m_tLastLocation, location));
if (len > m_fSegThreshold)
{
m_pRibbon->addPointAt(location, m_fWidth);
m_tLastLocation = location;
}
m_pRibbon->update(delta);
}
HitTestResult* hitTestStripStrip(StripBodyNode* a, StripBodyNode* b)
{
Point Atop[4];
Point Btop[4];
a->getTops(Atop, Atop + 1, Atop + 2, Atop + 3);
b->getTops(Btop, Btop + 1, Btop + 2, Btop + 3);
int cpcount = 0;
Point cp[12];
bool hit = isRectCrossRect(Atop[0], Atop[1], Atop[2], Atop[3],
Btop[0], Btop[1], Btop[2], Btop[3], &cpcount, cp);
if(hit)
{
if(cpcount < 0)
cpcount = 0;
Point ca = a->getCenter();
float wa = a->getWidth();
float ha = ccpDistance(a->getBegin(), a->getEnd());
Vector2 aa = ccpNormalize(a->getEnd() - a->getBegin());
for(int i = 0; i < 4; i++)
{
if(isPointInRect(Btop[i], ca, wa, ha, aa))
{
cp[cpcount++] = Btop[i];
}
}
// use dot result for comparing directly
// get true distance when receive a minimun dot result
int iMin = 0;
float dMin = 0;
Vector2 direction = a->getEnd() - a->getBegin();
for(int i = 0; i < cpcount; i++)
{
float d = ccpDot(cp[i], direction);
if( i == 0 && d < dMin)
{
dMin = d;
iMin = i;
}
}
dMin /= ccpLength(direction);
return HitTestResult::create(HTRT_CROSS, cp[iMin], dMin);
}
else
{
return HitTestResult::create(HTRT_NONE);
}
}
void CCMotionStreak::OnTick(const TimeEvent* evt)
{
ccTime delta = evt->getDelta();
CCPoint location = this->convertToWorldSpace(CCPointZero);
m_pRibbon->setPosition(ccp(-1*location.x, -1*location.y));
float len = ccpLength(ccpSub(m_tLastLocation, location));
if (len > m_fSegThreshold)
{
m_pRibbon->addPointAt(location, m_fWidth);
m_tLastLocation = location;
}
m_pRibbon->updateRibbon(delta);
}
void LFTwirl::update(float time)
{
//// 优化部分
//{
// flag ++;
// if (flag % 2 != 0)
// return;
// flag = 0;
//}
int i, j;
int index = 0;
for (i = 0; i < m_sGridSize.width + 1; ++i)
{
for (j = 0; j < m_sGridSize.height + 1; ++j)
{
ccVertex3F v = originalVertex(ccp(i, j));
CCPoint relativedPos = ccp(v.x - m_position.x,v.y - m_position.y);
CCPoint newPos;
float dis = 0.0f;
if (gridDistanceArray)
{
dis = gridDistanceArray[index];index++;
}else
{
dis = ccpLength(relativedPos) + 1.0f;
}
// 基于相对中心坐标计算
{
float tempAngle = mAngle;
tempAngle = tempAngle / dis * (mRadius*10);// 跟半径成反比，半径越大，转动角度越小
newPos = ccpRotateByAngle(relativedPos,ccp(1,0),CC_DEGREES_TO_RADIANS(tempAngle));
newPos.x *= mScale;
newPos.y *= mScale;
}
v.x = newPos.x + m_position.x ;
v.y = newPos.y + m_position.y;
setVertex(ccp(i, j), v);
}
}
mScale *= mScaleFactor;
mAngle += mAngleFactor;
}
/* 普通攻击 */
void
MCEnemy::attackTarget(MCRole *aTargetRole, CCObject *aTarget, SEL_CallFuncO aSelector, CCObject *anUserObject)
{
if (! canAttackTarget(aTargetRole)) {
attackDidFail();
return;
}
MCRole::attackTarget(aTargetRole);
ai_->lockState();
/* 检测攻击距离 */
MCRoleEntity *selfEntity = getEntity();
MCOBB targetOBB = aTargetRole->getEntity()->getOBB();
MCOBB selfOBB = selfEntity->getOBB();
CCPoint offset = ccpSub(targetOBB.center, selfOBB.center);
float distance = ccpLength(offset) / selfOBB.width - 1;
if (distance > (float) distance_) { /* 太远了干不了，需要走过去 */
target_ = aTarget;
attackDidFinishSelector_ = aSelector;
userObject_ = anUserObject;
/* approachTargetAndKeepDistance版本不能保持距离和approachTarget效果一样，暂时放弃 */
// selfEntity->approachTargetAndKeepDistance(aTarget,
// this,
// callfuncO_selector(MCHero::roleDidApproachTarget),
// aTarget,
// weapon->distance);
selfEntity->approachTarget(aTargetRole,
this,
callfuncO_selector(MCRole::roleDidApproachTarget),
aTargetRole);
return;
}
/* 进入攻击判断 */
// printf("进入攻击判断\n");
pp_ -= consume_;
MCDungeonMaster::sharedDungeonMaster()->roleAttackTarget(this, aTargetRole);
ai_->unlockState();
if (aTarget) {
(aTarget->*aSelector)(anUserObject ? anUserObject : this);
}
target_ = NULL;
attackDidFinishSelector_ = NULL;
userObject_ = NULL;
}
void BWSineBy::update(float time)
{
if (m_pTarget)
{
//CCLog("%f",time);
CCPoint dir = m_endPosition ;
float fDis = ccpLength(m_endPosition);
float fOldX = fDis * time;
float fOldY = m_fA * sinf(m_fW * fOldX);
float fOldC = sqrtf(powf(fOldX, 2)+powf(fOldY, 2));
float fRotRadian = atanf(fOldY/fOldX) + atanf(dir.y/dir.x);
if(m_endPosition.x < 0)
fRotRadian += M_PI;
float fRotOldX = fOldC * cos(fRotRadian);
float fRotOldY = fOldC * sin(fRotRadian);
float fNewX = fRotOldX + m_startPosition.x;
float fNewY = fRotOldY + m_startPosition.y;
CCPoint currentPos = m_pTarget->getPosition();
CCPoint newPos = ccp( fNewX, fNewY);
m_pTarget->setPosition(newPos);
if(m_bRotHead)
{
CCPoint dirPoint = ccpSub(newPos, currentPos);
float fRadian = atanf(dirPoint.y/dirPoint.x);
if((dirPoint.y > 0 && dirPoint.x > 0)
|| (dirPoint.y < 0 && dirPoint.x > 0))
{
fRadian = M_PI_2 - fRadian;
}
else if((dirPoint.y < 0 && dirPoint.x < 0)||
(dirPoint.y > 0 && dirPoint.x < 0))
{
fRadian = -M_PI_2 - fRadian;
}
float m_fRotation = fRadian*180.0/M_PI;
m_pTarget->setRotation(m_fRotation);
}
}
}
void SineBy::adjustTargetPosition(float time)
{
float fX = ccpLength(m_endPosition) * time;
float fY = m_fA * sinf(m_fW * fX);
//float fC = sqrtf(fX * fX + fY * fY);
//float fRadian = (m_endPosition.x < 0) ? \
// atanf(fY / fX) + atanf(m_endPosition.y / m_endPosition.x) + float(M_PI) :\
// atanf(fY / fX) + atanf(m_endPosition.y / m_endPosition.x);
//float fRadian = ccpAngleSigned(m_endPosition, CCPointMake(-1, 0));
double fRadian = M_PI_2;
//CCPoint targetPos = ccp(fC * cos(fRadian) + m_startPosition.x, fC * sin(fRadian) + m_startPosition.y);
CCPoint targetPos = ccpAdd(m_startPosition, ccp(fX,fY)).rotateByAngle(m_startPosition, fRadian);
m_pTarget->setPosition(targetPos);
}
void PaintLayer::ccTouchMoved(CCTouch* touch, CCEvent* event)
{
const CCPoint point = CCDirector::sharedDirector()->convertToGL(touch->getLocationInView());
//! skip points that are too close
float eps = 1.5;
if (points->count() > 0)
{
float length = ccpLength(ccpSub(((LinePoint *)points->lastObject())->pos, point));
if (length < eps)
{
return;
}
}
this->addPoint(point, lineWidth);
}
void CCMissile::step(float dt) {
// position of target and aimed
CCNode* target = getTarget();
CCPoint t = target->getPosition();
CCPoint a = m_aimed->getPosition();
// position vector degree
CCPoint v = ccpSub(a, t);
float r = ccpToAngle(v);
float d = -CC_RADIANS_TO_DEGREES(r);
d -= m_presetDegree;
// save dest degree
if(m_dstDegree != d) {
m_dstDegree = d;
}
// rotate to dst degree gradually
if(m_dstDegree > target->getRotation()) {
float cur = MIN(m_dstDegree, target->getRotation() + dt * ANGULAR_VELOCITY);
target->setRotation(cur);
} else if(m_dstDegree < target->getRotation()) {
float cur = MAX(m_dstDegree, target->getRotation() - dt * ANGULAR_VELOCITY);
target->setRotation(cur);
}
// move target by velocity
float move = m_velocity * dt;
float distance = ccpLength(v);
if(move >= distance) {
target->setPosition(a);
} else {
t.x += move * cosf(r);
t.y += move * sinf(r);
target->setPosition(t);
}
// is done?
m_done = getTarget()->getPositionX() == m_aimed->getPositionX() &&
getTarget()->getPositionY() == m_aimed->getPositionY();
// done callback
if(m_done && m_doneCallFunc) {
m_doneCallFunc->execute();
}
}
void Ball::collideWithPaddle(Paddle* paddle)
{
CCRect paddleRect = paddle->rect();
paddleRect.origin.x += paddle->getPosition().x;
paddleRect.origin.y += paddle->getPosition().y;
float lowY = CCRect::CCRectGetMinY(paddleRect);
float midY = CCRect::CCRectGetMidY(paddleRect);
float highY = CCRect::CCRectGetMaxY(paddleRect);
float leftX = CCRect::CCRectGetMinX(paddleRect);
float rightX = CCRect::CCRectGetMaxX(paddleRect);
if (getPosition().x > leftX && getPosition().x < rightX) {
bool hit = false;
float angleOffset = 0.0f;
if (getPosition().y > midY && getPosition().y <= highY + radius())
{
setPosition( CCPointMake(getPosition().x, highY + radius()) );
hit = true;
angleOffset = (float)M_PI / 2;
}
else if (getPosition().y < midY && getPosition().y >= lowY - radius())
{
setPosition( CCPointMake(getPosition().x, lowY - radius()) );
hit = true;
angleOffset = -(float)M_PI / 2;
}
if (hit)
{
float hitAngle = ccpToAngle(ccpSub(paddle->getPosition(), getPosition())) + angleOffset;
float scalarVelocity = ccpLength(m_velocity) * 1.05f;
float velocityAngle = -ccpToAngle(m_velocity) + 0.5f * hitAngle;
m_velocity = ccpMult(ccpForAngle(velocityAngle), scalarVelocity);
}
}
}
