double MaxMoveOnYclip(const AABB& boxA, const AABB& boxB, double movedist){
//用boxA去撞boxB，别搞反了 （这好像是句废话）
if (!(inXclip(boxA, boxB) && inZclip(boxA, boxB))) return movedist;
else if (boxA.ymin >= boxB.ymax && movedist < 0.0) return max(boxB.ymax - boxA.ymin, movedist);
else if (boxA.ymax <= boxB.ymin && movedist > 0.0) return min(boxB.ymin - boxA.ymax, movedist);
//assert(false);
return !stuck ? movedist : 0.0;
}
double MaxMoveOnYclip(AABB boxA, AABB boxB, double movedist){
//用boxA去撞boxB，别搞反了 （这好像是句废话）
double ret = 0.0;
if (!(inXclip(boxA, boxB) && inZclip(boxA, boxB))){
ret = movedist;
}
else if (boxA.ymin >= boxB.ymax && movedist < 0.00) {
ret = boxB.ymax - boxA.ymin;
if (ret<movedist) ret = movedist;
}
else if (boxA.ymax <= boxB.ymin && movedist > 0.0) {
ret = boxB.ymin - boxA.ymax;
if (ret > movedist) ret = movedist;
}
else{
if (!stuck) ret = movedist;
else ret = 0.0;
}
return ret;
}
double MaxMoveOnXclip(const AABB& boxA, const AABB& boxB, double movedist){
//用boxA去撞boxB，别搞反了
double ret = 0.0;
if (!(inYclip(boxA, boxB) && inZclip(boxA, boxB))){
ret = movedist;
}
else if (boxA.xmin >= boxB.xmax && movedist < 0.00) {
ret = boxB.xmax - boxA.xmin;
if (ret<movedist) ret = movedist;
}
else if (boxA.xmax <= boxB.xmin && movedist > 0.0) {
ret = boxB.xmin - boxA.xmax;
if (ret > movedist) ret = movedist;
}
else{
if (!stuck) ret = movedist;
else ret = 0.0;
}
return ret;
}
bool Hit(AABB boxA, AABB boxB){
return inXclip(boxA, boxB) && inYclip(boxA, boxB) && inZclip(boxA, boxB);
}
bool Hit(const AABB& boxA, const AABB& boxB){
return inXclip(boxA, boxB) && inYclip(boxA, boxB) && inZclip(boxA, boxB);
}
