static void cxJumpStep(cxAny pav,cxFloat dt,cxFloat time)
{
cxJump this = pav;
cxFloat frac = fmodf( time * this->jumps, 1.0f );
cxFloat y = this->height * 4 * frac * (1 - frac) + this->position.y * time;
cxFloat x = this->position.x * time;
cxVec2f diff;
cxVec2f currPos = this->super.view->position;
kmVec2Subtract(&diff, &currPos, &this->prevPos);
kmVec2Add(&this->startPos, &diff, &this->startPos);
cxVec2f nPos;
kmVec2Add(&nPos, &this->startPos, &cxVec2fv(x, y));
this->prevPos = nPos;
cxViewSetPos(this->super.view, nPos);
}
/**
* Returns the point mid-way between two others
*/
kmVec2* kmVec2MidPointBetween(kmVec2* pOut, const kmVec2* v1, const kmVec2* v2) {
kmVec2 sum;
kmVec2Add(&sum, v1, v2);
pOut->x = sum.x / 2.0f;
pOut->y = sum.y / 2.0f;
return pOut;
}
/**
* Returns the point mid-way between two others
*/
kmVec2* kmVec2MidPointBetween(kmVec2* pOut, const kmVec2* v1, const kmVec2* v2) {
kmVec2 diff;
kmVec2Subtract(&diff, v2, v1);
kmVec2Normalize(&diff, &diff);
kmVec2Scale(&diff, &diff, kmVec2DistanceBetween(v1, v2) * 0.5);
kmVec2Add(pOut, v1, &diff);
return pOut;
}
void BattleManagerScreen::onEntityEffectEvent( CCObject* e )
{
GameEntityEffectEvt* evt = dynamic_cast<GameEntityEffectEvt*>(e);
if(!evt) return;
if( evt->name.compare("Death Grip") == 0 ) {
CCLog("death grip");
kmVec2 pOrigin;
kmVec2 pTarget;
if( !GetEntityPosition(evt->origin, pOrigin) || !GetEntityPosition(evt->target, pTarget) )
{
CCLog("aborting death grip evt due to invalid target(s)");
}
kmVec2 toTarget;
kmVec2Subtract(&toTarget, &pTarget, &pOrigin);
kmVec2 u_toTarget;
kmVec2Normalize(&u_toTarget, &toTarget);
float leashDistance = 1; //one game unit
kmVec2 dv;
kmVec2Scale(&dv, &u_toTarget, leashDistance );
kmVec2 posEnd;
kmVec2Add(&posEnd, &pOrigin, &dv);
//convert back to screen coordinates
kmVec2Scale(&posEnd, &posEnd, VIEW_UNIT_CONVERSION);
GameEntityView* tView = getViewForEntity(evt->target);
tView->setPosition(posEnd.x, posEnd.y);
}
}
