public bool AttackDetect(Ninja plr)
{
//projectile checks
SPoint[] pHdr = new SPoint[8];
SPoint[] plBox;
plBox = plr.GetHitBox();
int hbLen=4;
float[] plAng ={0, Mathf.PI/2, Mathf.PI, -Mathf.PI/2};
bool hitflag = true;
for (int i=0; i<8; i++)
pHdr [i] = new SPoint (v [i].x + pos.x, v [i].y +pos.y);
float atkLen = GetVNum ();
for (int j = 0; j < atkLen; j++)
if (!CheckAxis(pHdr [0], ang [j], pos, plBox, hbLen)) //no axis intersection
hitflag = false;
if((hitflag)) {
return true;
}
return false;
}
public virtual void AttackDetect(Ninja plr)
{
bool multiHitFlag = false;
string hitText;
//std::stringstream log;
bool hitflag = true;
int atkLen;
int spI=0;
int spJ=0;
int hbLen=4;
SPoint[] plBox;
SPoint[][] spBox;
float[] plAng ={0, Mathf.PI/2, Mathf.PI, -Mathf.PI/2};
int il = 0;
il = attackBox.trackList[fHelper.atkType].iLength;//num of tracks
AttkTrack aBox = new AttkTrack();
int polyHit=-1;
plBox = plr.GetHitBox();//loads victim hitbox into plBox
//each side is made from the vertices [i] and [+1]
int numPoly = 0; //number of polygons in a track;
int pInd = 0;//polygon index
SPoint[] pHdr = new SPoint[8];
il = 1;
if(!atkTmr.IsReady()){//only continue if an attack is out
//attack checks
for(int t=0;t<il;t++){//iterate through all sub tr
//if(plr.CharName().CompareTo("PsySword")==0)
// int ds=2;//checkpt
if((fHelper.seqInd!=0)&&((fHelper.seqInd-1)!=t)){
hitflag=false;//do nothing, for now
}else {
aBox= new AttkTrack();
aBox.noHit=false;
if(attackBox.trackList[fHelper.atkType].trackType==AttkBox.FLASH){
if(fHelper.frame>lastFlash){
for(AttkVtx av = attackBox.trackList[fHelper.atkType].aVtx[0][0]; av!=null;av=av.next){
if((av.frame==lastFlash)&&(av.next!=null)){
lastFlash=av.next.frame;
attackBox.flashAtkRdy=true;
attackBox.ResetHits (fHelper.atkType);
while(av.next!=null)
av=av.next;
//av=null;//force exit
}
}
}
}
attackBox.FetchFrame(fHelper.atkType, atkTmr.GetLen(), fHelper.frame, t, new SPoint(GetPos().x, GetPos().y), fHelper.IsFacingRight(), aBox);//fetches frame into aBox
//aBox has its polygons separated into different tracks for efficiency
//make a new SPoint array, spBox, to use checkAxis.
hitflag=true;
if(aBox.noHit==false){
//if(plr.CharName().CompareTo("PsySword")==0)
// int d2s=2;//checkpt
spBox=new SPoint[aBox.iLength][];
for(int i=0;i<aBox.iLength;i++)
spBox[i]=new SPoint[aBox.jLength[i]];
aBox.FetchSPArr(spBox);
if(ClashCheck(plr, spBox, aBox.atkAng)){
SPoint p1Vel = new SPoint(GetPos().x - plr.GetPos().x, GetPos().y - plr.GetPos().y).GetNormal();
float cRat = 0.2f;
stats.motion.vel.x = p1Vel.x*cRat;
stats.motion.vel.y = p1Vel.y*cRat;
plr.stats.motion.vel.x = -p1Vel.x*cRat;
plr.stats.motion.vel.y = -p1Vel.y*cRat;
fHelper.airborne = true;
plr.fHelper.airborne = true;
return;
}
numPoly=aBox.iLength;
bool hitCheck = false;
for(pInd=0;pInd<numPoly;pInd++){//iterate per poly
hitflag=true;
atkLen = aBox.GetJlength(pInd);
for(int j = 0; j < atkLen; j++)
if(!CheckAxis(aBox.aVtx[pInd][j].pos, aBox.atkAng[pInd][j], plBox, spBox[pInd], hbLen, aBox.GetJlength(pInd)) ) //no axis intersection
hitflag = false;
if(hitflag)//test on the axis of the player hit box to confirm
for(int j = 0; j < 4; j++)
if(!CheckAxis(plBox[j], plAng[j], plBox, spBox[pInd], hbLen, aBox.GetJlength(pInd))) //no axis intersection
hitflag = false;
if(hitflag)
hitCheck=true;
}
hitflag=hitCheck;
//log.str(std::string());
/* for(int i=0;i<aBox.iLength;i++){//tidy up
if(!aBox.noHit)
delete [] spBox[i];
}
if(aBox.iLength==0){
int ee = 2;
//log.str(std::string());
}
else if(!aBox.noHit){//make sure it was hit
if(aBox.iLength>1)
delete [] spBox;
else
delete spBox;
spBox=NULL;
}*/
}else
hitflag=false;//abandon
if(hitflag){
AttkData retOb = new AttkData(aBox.GetJlength(t));//initilize for holding vals
Attack(plr, t, aBox, retOb);
if(!retOb.noHit){
plr.GetHit(retOb);
multiHitFlag=true;
t=il;//force exit; one track hit
}
}
}
}
}
//seems the ideal place to determine pushback
//if the difference in z is less than their average width
if((Mathf.Abs(plr.GetPos().x-GetPos().x) < (plr.stats.size.x+stats.size.x)/2 )
&&(Mathf.Abs(plr.GetPos().y-GetPos().y) < (plr.stats.size.y+stats.size.y)/2)
&&(!fHelper.airborne)&&(!plr.fHelper.airborne))
if(plr.GetPos().x-GetPos().x>0){
stats.motion.move.x-=0.1f;
plr.stats.motion.move.x+=0.1f;}
else{
stats.motion.move.x+=0.1f;
plr.stats.motion.move.x-=0.1f;}
}
protected virtual void Attack(Ninja plr,int tr, AttkTrack aBox, AttkData data)
{
//pHit is a bool array of flags that tell whether a sub-poly held collision
//aBox is a modified track taken from current frame
//plr is the player hit
//check pnum else we cut Serenuity's sword
if((plr.stats.id.num<100)&&(attackBox.trackList[fHelper.atkType].hit[tr][plr.stats.id.num])){//if this attack was recorded already
data.noHit=true; //flag so this does not trigger impact
return;//don't hit again
}
attackBox.trackList[fHelper.atkType].hit[tr][plr.stats.id.num]=true;
bool isInBox=false;
bool vNextInBox=false;
AttkVtx iVt;
bool[] cornerFlag = new bool[4];
SPoint[] hb = plr.GetHitBox();// double[4]
for(int i=0;i<4;i++){
cornerFlag[i]=true;
hb[i].x = hb[i].x-GetPos().x;//translate to origin
hb[i].y = hb[i].y-GetPos().y;
}
bool emptyFlag = true;
bool fullFlag =true;//assume true, disprove by counterexample
SPoint vPos = new SPoint ();
SPoint opp = new SPoint();
int vNext,vLast,jl, il;
float nX, nY, lY=0, lX=0, vX, vY, ppX, ppY, ph2, pw2, diDist,vDir, vDmg, vMag, vWgt = 0;
//add poitional value (for wgt=0) into data
opp.x=plr.GetPos().x-GetPos().x;//used to store the centerpoint
if(fHelper.IsFacingRight()) //for input into data
opp.x-=(aBox.centre.pos.x);
else
opp.x+=(aBox.centre.pos.x);
opp.y=plr.GetPos().y-GetPos().y+aBox.centre.pos.y;
data.SetAVals(opp);
il = aBox.iLength;
//set data.abds as an sPoint holding the vertices for aBox.vtx
//this is done purely for debug rendering
//which will later handle 'data'
data.aBds = new SPoint[il][];
for(int j=0;j<il;j++){
data.aBds[j] = new SPoint[aBox.GetJlength(j)];
for(int i=0;i<aBox.GetJlength(j);i++)
data.aBds[j][i] = new SPoint(aBox.aVtx[j][i].pos.x-GetPos().x, aBox.aVtx[j][i].pos.y-GetPos().y);
}
emptyFlag=true;
fullFlag=true;
ph2 = plr.stats.size.y/2;
pw2 = plr.stats.size.x/2;
ppX = plr.GetPos().x;
ppY = plr.GetPos().y+ph2;
for(int i=0;i<4;i++)//assume true then prove false
cornerFlag[i]=true;
for(int p=0; p<aBox.iLength;p++){
jl = aBox.GetJlength(p);
for(int v = 0; v < jl;v++){//loop through the second index
vPos = aBox.aVtx[p][v].pos;//use this vertex to check whether it falls
if((Mathf.Abs(vPos.x-ppX)<pw2)&&(Mathf.Abs(vPos.y-ppY)<ph2))// within hitbox
emptyFlag = false;//can't be empty
else
fullFlag = false;//can't be full
}
if(fullFlag){
for(int v = 0; v < jl;v++){
int before = v-1;
if(before<0)
before=jl-1;
diDist = Mathf.Sqrt(Mathf.Pow(aBox.aVtx[p][before].pos.x-aBox.aVtx[p][v].pos.x, 2) + Mathf.Pow(aBox.aVtx[p][before].pos.y-aBox.aVtx[p][v].pos.y, 2));
vMag = aBox.aVtx[p][v].mag;
vDir = aBox.aVtx[p][v].dir;
vDmg = aBox.aVtx[p][v].dmg;
vWgt = aBox.aVtx[p][v].wgt;
data.addVal(aBox.aVtx[p][v].pos, vMag, vDir, diDist, vDmg, vWgt);
for(int i=0;i<4;i++)
cornerFlag[i]=false;//none possible to be included
}
}
else if(emptyFlag){
for(int j = 0;j<jl;j++){
diDist=1;
vMag = aBox.aVtx[p][j].mag;
vDir = aBox.aVtx[p][j].dir;
vDmg = aBox.aVtx[p][j].dmg;
vWgt = aBox.aVtx[p][j].wgt;
vPos = aBox.aVtx[p][j].pos;
vPos.x-=GetPos().x;
vPos.y-=GetPos().y;
data.addVal(vPos, vMag, vDir, diDist, vDmg, vWgt);
}
}
else
for(int v = 0; v < jl;v++){
vNext = (v+1)%jl;//circular array
vPos = aBox.aVtx[p][vNext].pos;
vNextInBox = ((Mathf.Abs(vPos.x-ppX)<pw2)&&(Mathf.Abs(vPos.y-ppY)<ph2));
vLast=v-1;
if(vLast<0)
vLast=jl-1;
vMag = aBox.aVtx[p][v].mag;
vDir = aBox.aVtx[p][v].dir;
vDmg = aBox.aVtx[p][v].dmg;
vWgt = aBox.aVtx[p][v].wgt;
vPos = aBox.aVtx[p][v].pos;
vX = aBox.aVtx[p][v].pos.x-GetPos().x;//all values translated to origin
vY = aBox.aVtx[p][v].pos.y-GetPos().y;
if(v==0){
lX=vX;//mustdefine these ahead of time
lY=vY;//so the first dir is properly averaged
} //in case the loop below is not entered
if((Mathf.Abs(vPos.x-ppX)<pw2)&&(Mathf.Abs(vPos.y-ppY)<ph2)){//within the victim's hitbox
diDist = Mathf.Sqrt( (lX-vX)*(lX-vX) + (lY-vY)*(lY-vY));
data.addVal(new SPoint(vX, vY), vMag, vDir, diDist, vDmg, vWgt);
lX=vX;
lY=vY;
if(!vNextInBox){
iVt = InterpVert(aBox.aVtx[p][v], aBox.aVtx[p][vNext], plr);
iVt.pos.x-=GetPos().x;//all values translated to origin
iVt.pos.y-=GetPos().y;
diDist = Mathf.Sqrt(Mathf.Pow(iVt.pos.x-vX, 2)+Mathf.Pow(iVt.pos.y-vY, 2));
data.addVal(iVt.pos, iVt.mag, iVt.dir, diDist, iVt.dmg, iVt.wgt);
lX=iVt.pos.x;
lY=iVt.pos.y;
}
}
else {
if(vNextInBox){
iVt = InterpVert(aBox.aVtx[p][vNext], aBox.aVtx[p][v], plr);
iVt.pos.x-=GetPos().x;//all values translated to origin
iVt.pos.y-=GetPos().y;
diDist = Mathf.Sqrt(Mathf.Pow(iVt.pos.x-lX, 2)+Mathf.Pow(iVt.pos.y-lY, 2));
data.addVal(iVt.pos, iVt.mag, iVt.dir, diDist, iVt.dmg, iVt.wgt);
lX=iVt.pos.x;
lY=iVt.pos.y;
}
}
for(int i = 0; i<4;i++){//check player corner axis
vX = aBox.aVtx[p][v].pos.x-GetPos().x-hb[i].x;//all values translated to origin
vY = aBox.aVtx[p][v].pos.y-GetPos().y-hb[i].y;
nX = aBox.aVtx[p][vNext].pos.x-GetPos().x-hb[i].x;
nY = aBox.aVtx[p][vNext].pos.y-GetPos().y-hb[i].y;
if((fHelper.IsFacingRight())&&(nX*vY-vX*nY<0))//second part is a shortcut formula
cornerFlag[i]=false;
else if((!fHelper.IsFacingRight())&&(nX*vY-vX*nY>0))
cornerFlag[i]=false;
}
}
//last step; add corners that retained their flag
if(emptyFlag){//for now ; TODO: add case later
for(int i=0;i<4;i++)
if(cornerFlag[i]){
iVt = InterpCorner(aBox.aVtx[p], aBox.GetJlength(p), plr.GetPos());
iVt.pos.x-=GetPos().x;//all values translated to origin
iVt.pos.y-=GetPos().y;
diDist = Mathf.Sqrt(Mathf.Pow(iVt.pos.x-lX, 2)+Mathf.Pow(iVt.pos.y-lY, 2));
data.addVal(iVt.pos, iVt.mag, iVt.dir, diDist, iVt.dmg,iVt.wgt);
lX=iVt.pos.x;
lY=iVt.pos.y;
}
}
}
data.rollIntoAvg();
if (attackBox.trackList [fHelper.atkType].isVacuum) {
data.isVacuum=true;
}
data.SetConOrigin(aBox.centre.pos);
data.PlayerHitBoxInput(hb);
}
protected bool ColDetect(Ninja plr)
{
if (gameWon) {
if(Input.anyKey){
Application.LoadLevel ("menu");
foreach (GameObject o in Object.FindObjectsOfType<GameObject>()) {
Destroy(o);}
Application.LoadLevel ("menu");
}
return false;
}
bool hitflag=false;
int polyIndex = -1;//to keep record of which polygon caused the collision
int hitIndex = -1;//to keep record of which side of the polygon caused collision
SPoint[] plBox, plLast;
bool retFlag=false;//holds the return value
//this loads plBox[] and plLast[] with the player's hitboc this
//and last frame respectively
int hbLen=4;
SPoint posDiff = new SPoint(plr.GetPos().x-plr.GetLastPos().x, plr.GetPos().y-plr.GetLastPos().y);
if(posDiff.SqDistFromOrigin()!=0){
plBox = plr.GetCurrentColBox();
plLast=plr.GetCurrentColBox();
hbLen = 6;
for(int i=0;i<hbLen;i++){
plLast[i].x-=posDiff.x;
plLast[i].y-=posDiff.y;
}
}else{
plBox = plr.GetHitBox();
plLast=plr.GetHitBox();
hbLen=4;
}
if((plr.GetPos().x>9)&&(plr.GetPos().x-posDiff.x<9))
hbLen= hbLen;
SPoint hld;
float[] plAng = new float[hbLen];
for(int i=0;i<hbLen-1;i++){
plAng[i]= new SPoint(plBox[i].x-plBox[i+1].x,plBox[i].y-plBox[i+1].y).GetDir();
}
plAng[hbLen-1] = new SPoint(plBox[hbLen-1].x-plBox[0].x,plBox[hbLen-1].y-plBox[0].y).GetDir();
// FillCollisionBox(plBox, plr->GetPos(), plr->stats.size.y, plr->stats.size.x);
// FillCollisionBox(plLast, plr->stats.motion.lastPos, plr->stats.size.y, plr->stats.size.x);
//set up angles here for easy acces along with the hitboxes above.
for(int i = 0; i < tBox.iLength; i++){
hitflag = true;//assume true, then prove false.
for(int j = 0; j < tBox.GetJlength(i); j++)
if(!plr.CheckAxis(tBox.GetSPoint(i, j), tBox.GetAng(i, j), plBox,tBox.pBounds[i], hbLen, tBox.jLength[i])){ //no axis intersection
hitflag = false;
j=tBox.GetJlength(i);//exit loop early
}
if(hitflag)//possible collision; check against other polygon axise
for(int j = 0; j < hbLen; j++){
if(!plr.CheckAxis(plBox[j], plAng[j], plBox, tBox.pBounds[i], hbLen, tBox.jLength[i])){ //no axis intersection
hitflag = false;
j=hbLen;//exit loop early
}
}
if(hitflag){//all checks are done, collision is sure
polyIndex = i;//keep record of the last polygon caused the flag
i=tBox.iLength;//Collision detected, end loop early
}
}
SPoint prV=new SPoint();
SPoint pCtr;
//extra added to detect and destroy any projectiles on-screen
int cv;
bool pHitFlag = true;
float flAng = 1.55f;
if(polyIndex!=-1){
//hitflag = true;//force to true to return
retFlag=true;
//see which side has collided
for(int i = 0; i < tBox.GetJlength(polyIndex); i++){
if(!plr.CheckAxis(tBox.GetSPoint(polyIndex, i), tBox.GetAng(polyIndex, i), plLast, tBox.pBounds[polyIndex], hbLen, tBox.jLength[polyIndex])){
hitIndex = i;
i=tBox.GetJlength(polyIndex);//end loop prematurely
}
}
bool pAxisFlag=false;
if(hitIndex == -1){
for(int i = 0; i < hbLen; i++){//check player angs to find the axis
if(!plr.CheckAxis(plLast[i], plAng[i], plLast, tBox.pBounds[polyIndex], hbLen, tBox.jLength[polyIndex]) ){
hitIndex = i;
pAxisFlag = true;
}
}//do collision detection again for this particular index on the polygon
}//to get the exit vector
SPoint axP = new SPoint();
if(hitIndex>=0){
if (!pAxisFlag){//using poly axis
axP = ExitDist(polyIndex, tBox.GetSPoint(polyIndex, hitIndex), tBox.GetAng(polyIndex, hitIndex), plr, 0);
flAng=tBox.GetAng(polyIndex, hitIndex);
}
else{//using player axis
axP = ExitDist(polyIndex, plBox[hitIndex], plAng[hitIndex], plr, 0);
flAng=plAng[hitIndex];
}
if ((axP.x == 0) && (axP.y == 0))
{
polyIndex = polyIndex;// V-jank fix, add a check to get this answer in the first place
axP = ExitDist(polyIndex, tBox.GetSPoint(polyIndex, hitIndex+2), tBox.GetAng(polyIndex, hitIndex+2), plr, 0);
}
}else
retFlag=false;
if (polyIndex == 2)
polyIndex = 2;
if (polyIndex == 1)
polyIndex = 1;
plr.stats.motion.pos.x+=axP.x;
plr.stats.motion.pos.y+=axP.y;
//for walking
float axAng = Mathf.Atan2(axP.y, axP.x);
float wallAng = Mathf.Atan2(plr.GetVel().y, plr.GetVel().x);
float wallDist = Mathf.Sqrt(Mathf.Pow(plr.GetVel().x, 2) + Mathf.Pow(plr.GetVel().y, 2) );
wallAng -= axAng;
//separate cases for wall collision
//depend on whether player is tumbling
//non-reounding
if((axAng>0)&&(axAng < Mathf.PI))
plr.Land(flAng);
plr.stats.motion.vel.x -= Mathf.Cos(wallAng)*wallDist*Mathf.Cos(axAng);
plr.stats.motion.vel.y -= Mathf.Cos(wallAng)*wallDist*Mathf.Sin(axAng);
if (( Mathf.Abs( Mathf.Abs(axAng) - Mathf.PI )< 0.1f) && (plr.fHelper.airborne))
plr.WallHang(axAng);
else if ((Mathf.Abs(axAng) < 0.1f) && (plr.fHelper.airborne))
plr.WallHang(axAng);
}
if ((!plr.fHelper.airborne)&&(!retFlag)&&(!plr.tPortFlag))
if(!GroundTrack(plr))//ground tracking done here
plr.Fall();
if((plr.GetPos().x > uBound.x)||(plr.GetPos().y > uBound.y)||(plr.GetPos().x < lBound.x)||(plr.GetPos().y < lBound.y)){
if((plr.stats.stocks>0)||(!matchModeOn)){
//SetPlStart(plr);
plr.stats.stocks--;
plr.stats.motion.vel = new SPoint(0,0);
plr.stats.damage=0;}
}
if (retFlag)
ColDetect (plr);
return retFlag;
}
public SPoint ExitDist(int iInd, SPoint origin, float dir, Ninja plr, int ifGrab)
{
//plBox must contain 4 vertices!!!
bool isHit = true;
float rAng, distSq, projVal, moveDist;
SPoint moveVec = new SPoint();
moveVec.x = plr.GetPos().x - plr.GetLastPos().x;
moveVec.y = plr.GetPos().y - plr.GetLastPos().y;
SPoint[] plBox;
int hbLen = 4;
if (ifGrab < 0)
{//implies groundCheck
plBox = plr.GetHitBox();
hbLen = 4;
}
else
{
plBox = plr.GetCurrentColBox();
hbLen = 6;
}
float dHitMinSq = 1000;
float dHitMaxSq = 0;
float dPrMinSq = 1000;
float dPrMaxSq = 0;
SPoint projVec = new SPoint();
float projMin = STAGE_LIMIT * STAGE_LIMIT;
float projMax = -STAGE_LIMIT * STAGE_LIMIT;
float hitMin = STAGE_LIMIT * STAGE_LIMIT;
float hitMax = -STAGE_LIMIT * STAGE_LIMIT;
for (int i = 0; i < tBox.GetJlength(iInd); i++)
{
projVec.x = tBox.GetSPoint(iInd, i).x - origin.x;
projVec.y = tBox.GetSPoint(iInd, i).y - origin.y;
distSq = projVec.x * projVec.x + projVec.y * projVec.y;
if (distSq < EPS * EPS)
rAng = dir; //Do NOT take atan2(0, 0)
else
rAng = dir - Mathf.Atan2(projVec.y, projVec.x);
projVal = Mathf.Sin(rAng) * distSq;
if (projVal < projMin){
projMin = projVal;
dPrMinSq = distSq;
}if (projVal > projMax){
projMax = projVal;
dPrMaxSq = distSq;
}
}
for (int i = 0; i < hbLen; i++)
{
projVec.x = plBox[i].x - origin.x;
projVec.y = plBox[i].y - origin.y;
distSq = projVec.x * projVec.x + projVec.y * projVec.y;
if (distSq < EPS * EPS)
rAng = dir; //Do NOT take atan2(0, 0)
else
rAng = dir - Mathf.Atan2(projVec.y, projVec.x);
projVal = Mathf.Sin(rAng) * distSq;
if (projVal < hitMin){
hitMin = projVal;
dHitMinSq = distSq;
} if (projVal > hitMax) {
hitMax = projVal;
dHitMaxSq = distSq;
}
}
if (dPrMinSq != 0)
projMin = projMin / Mathf.Sqrt(dPrMinSq);
if (dPrMaxSq != 0)
projMax = projMax / Mathf.Sqrt(dPrMaxSq);
if (dHitMinSq != 0)
hitMin = hitMin / Mathf.Sqrt(dHitMinSq);
if (dHitMaxSq != 0)
hitMax = hitMax / Mathf.Sqrt(dHitMaxSq);
if ((hitMax <= projMin) || (projMax <= hitMin))
isHit = false;
if ((Mathf.Abs(projMax - hitMin) < EPS) || (Mathf.Abs(hitMax - projMin) < EPS))
isHit = false;
//determine exit vector here
float moveAng = Mathf.Atan2(moveVec.y, moveVec.x);
float angDiff = Mathf.Abs(moveAng - (dir - Mathf.PI / 2));
if (angDiff > Mathf.PI)
angDiff = Mathf.Abs(angDiff - Mathf.PI * 2);
moveDist = 0;
if (isHit)
{
if (angDiff < Mathf.PI / 2) //moveVector in direction of exit vector
moveDist = -Mathf.Abs(hitMax - projMin);
else
moveDist = Mathf.Abs(projMax - hitMin);
}
moveVec.x = moveDist * Mathf.Cos(dir - Mathf.PI / 2);
moveVec.y = moveDist * Mathf.Sin(dir - Mathf.PI / 2);
return moveVec;
}
public SPoint ExitDistN(int iInd, SPoint origin, float dir, Ninja plr, int ifGrab)
{
// helper function for the Separating Axis Theorem that takes an axis defined by origin and dir
//re-conditioned to handle the parameters of the attack box
bool isHit = true;
float projMin, projMax, hitMin, hitMax, distSq, projVal, cVal;
float dHitMinSq = 1000;
float dHitMaxSq = 0;
float dPrMinSq = 1000;
float dPrMaxSq = 0;
SPoint projVec, nVec, rVec, cVec;
projVec = new SPoint();
SPoint moveVec = new SPoint();
projMin = STAGE_LIMIT;
projMax = -STAGE_LIMIT;
hitMin = STAGE_LIMIT;
hitMax = -STAGE_LIMIT;
moveVec.x = plr.GetPos().x - plr.GetLastPos().x;
moveVec.y = plr.GetPos().y - plr.GetLastPos().y;
SPoint[] plBox;
int hbLen = 4;
if (ifGrab < 0)
{//implies groundCheck
plBox = plr.GetHitBox();
hbLen = 4;
}
else
{
plBox = plr.GetCurrentColBox();
hbLen = 6;
}
for (int i = 0; i < tBox.GetJlength(iInd); i++)
{
projVec.x = tBox.GetSPoint(iInd, i).x - origin.x;
projVec.y = tBox.GetSPoint(iInd, i).y - origin.y;
distSq = projVec.x * projVec.x + projVec.y * projVec.y;
nVec = projVec.GetNormal();
cVec = new SPoint(Mathf.Cos(dir + Mathf.PI / 2), Mathf.Sin(dir + Mathf.PI / 2));
cVal = -cVec.Dot(nVec);
//projVal = sin(rAng)*abs(sin(rAng))*distSq;
projVal = cVal * Mathf.Abs(cVal) * distSq;
if (projVal < projMin){
projMin = projVal;
dPrMinSq = distSq;
}
if (projVal > projMax) {
projMax = projVal;
dPrMaxSq = distSq;
}
}
if (dPrMinSq != 0)
projMin = projMin / Mathf.Sqrt(dPrMinSq);
if (dPrMaxSq != 0)
projMax = projMax / Mathf.Sqrt(dPrMaxSq);
if (dHitMinSq != 0)
hitMin = hitMin / Mathf.Sqrt(dHitMinSq);
if (dHitMaxSq != 0)
hitMax = hitMax / Mathf.Sqrt(dHitMaxSq);
for (int i = 0; i < hbLen; i++)
{
projVec.x = plBox[i].x - origin.x;
projVec.y = plBox[i].y - origin.y;
distSq = projVec.x * projVec.x + projVec.y * projVec.y;
cVec = new SPoint(Mathf.Cos(dir + Mathf.PI / 2), Mathf.Sin(dir + Mathf.PI / 2));
nVec = projVec.GetNormal();
cVal = -cVec.Dot(nVec);
//projVal = sin(rAng)*abs(sin(rAng))*distSq;
projVal = cVal * Mathf.Abs(cVal) * distSq;
if (projVal < hitMin){
hitMin = projVal;
dHitMinSq = distSq;
}if (projVal > hitMax){
hitMax = projVal;
dHitMaxSq = distSq;
}
}
if ((hitMax <= projMin) || (projMax <= hitMin))
isHit = false;
if ((Mathf.Abs(projMax - hitMin) < EPS) || (Mathf.Abs(hitMax - projMin) < EPS))
isHit = false;
//determine exit vector here
float moveAng = Mathf.Atan2(moveVec.y, moveVec.x);
float angDiff = Mathf.Abs(moveAng - (dir - Mathf.PI/2)) ;
if(angDiff > Mathf.PI)
angDiff = Mathf.Abs(angDiff - Mathf.PI*2);
float moveDist=0;
if(isHit){
if(angDiff < Mathf.PI/2) //moveVector in direction of exit vector
moveDist = -Mathf.Abs(hitMax - projMin)/2;
else
moveDist = Mathf.Abs(projMax - hitMin)/2;
}
moveVec.x = moveDist*Mathf.Cos(dir - Mathf.PI/2);
moveVec.y = moveDist*Mathf.Sin(dir - Mathf.PI/2);
if(!isHit){
moveVec.x = 0;
moveVec.y = 0;
}
return moveVec;
}