bool Enemy::noticeFollower()
{
bool returnBool = false;
D3DXVECTOR3 followerPos = gFollower->getPosition();
float distanceSq = D3DXVec3LengthSq(&(mPosition - followerPos));
if (distanceSq > mSightRangeSq)//if not within range, they can't see follower
{
bAttackFollower = false;
return false;
}
// they are close enough to hear the follower through a wall or behind them
if (distanceSq < mHearRangeSq)
returnBool = true;
//if the follower would be behind the enemy, they don't get a chance to see them
//current enemy rotation is mRotation.y
//find rotation towards follower
D3DXVECTOR3 toFollower = gFollower->getPosition() - mPosition;
float followerDirection = atan2(toFollower.x, toFollower.z);
//if not within VISION_RANGE degrees/PI radians of each other
//this only applies if the player has not injured them. If player has, they are more
//watchful
if (mHealth == mHealthMax && returnBool == false)
{
//1.57 ~ 1/2 * PI 6.28 ~ 2 * PI
if ((fabs(followerDirection - mRotation.y) > 1.57) &&
((fabs(followerDirection - 6.28)) + mRotation.y > 1.57) &&
((fabs(mRotation.y - 6.28)) + followerDirection > 1.57))
{
bAttackFollower = false;
return false;
}
}
//if they are between max hearing and max sight range, see if they are line of sight to player
//make a line segment between enemy and player location
//only take into account x and z here since map is flat, will save time
LineSegment line3D(mPosition, followerPos);
for (Mesh* M : gCurrentLevel->getWorldGeometry())
{
for (AxisAlignedBoundingBox AABB : M->getBoundsBoxList())
{
//if further out than sight range, no point in checking it
if (D3DXVec3LengthSq(&(AABB.mMin - mPosition)) > mSightRangeSq)
continue;
//see if it collides with the line
if (collides(AABB, line3D))
{
bAttackPlayer = false;
return returnBool;
}
}
}
//if it gets through the above checks, then it can see the player
mLoseSightFollower = 0.0f;
bAttackFollower = true;
bSeenPlayer = true;
return true;
}
TEST_F(LineSegmentTest, getPointsTest) {
LineSegment<1> line1D(Point<1>(1.0), Point<1>(2.0));
LineSegment<2> line2D(Point<2>(1.0, 2.0), Point<2>(2.0, 3.0));
LineSegment<3> line3D(Point<3>(1.0, 2.0, 3.0), Point<3>(2.0, 3.0, 4.0));
EXPECT_EQ(1.0, line1D.getPoints().first.x());
EXPECT_EQ(2.0, line2D.getPoints().first.y());
EXPECT_EQ(3.0, line3D.getPoints().first.z());
EXPECT_EQ(2.0, line1D.getPoints().second.x());
EXPECT_EQ(3.0, line2D.getPoints().second.y());
EXPECT_EQ(4.0, line3D.getPoints().second.z());
}
TEST_F(LineSegmentTest, minAndMaxTest) {
LineSegment<1> line1D(Point<1>(1.0), Point<1>(2.0));
LineSegment<2> line2D(Point<2>(1.0, 2.0), Point<2>(2.0, 3.0));
LineSegment<3> line3D(Point<3>(1.0, 2.0, 3.0), Point<3>(2.0, 3.0, 4.0));
EXPECT_EQ(1.0, line1D.startPoint().x());
EXPECT_EQ(2.0, line2D.startPoint().y());
EXPECT_EQ(3.0, line3D.startPoint().z());
EXPECT_EQ(2.0, line1D.endPoint().x());
EXPECT_EQ(3.0, line2D.endPoint().y());
EXPECT_EQ(4.0, line3D.endPoint().z());
}
TEST_F(LineSegmentTest, ConstructorTest) {
EXPECT_NO_THROW(LineSegment<1> line1D(Point<1>(1.0), Point<1>(2.0)));
EXPECT_NO_THROW(LineSegment<2> line2D(Point<2>(1.0, 2.0), Point<2>(2.0, 3.0)));
EXPECT_NO_THROW(LineSegment<3> line3D(Point<3>(1.0, 2.0, 3.0), Point<3>(2.0, 3.0, 4.0)));
}
