//TODO: MODIFY! NOT WORKING IF LINE SEGMENT INSIDE POLYGON
private static bool IsLineAndPolygonIntersects(Vector2 lineSegmentVertex1, Vector2 lineSegmentVertex2, Shape shape, Vector2 shapePos, long shapeRot)
{
var polygonShape = (PolygonShape)shape;
var cos = FixedMath.Cos(shapeRot);
var sin = FixedMath.Sin(shapeRot);
//TODO: replace to better algorithm
var prevPolygonVertex = Rotate(polygonShape.vertices[0], cos, sin) + shapePos;
for (var i = polygonShape.vertices.Length - 1; i >= 0; i--)
{
var curPolygonVertex = Rotate(polygonShape.vertices[i], cos, sin) + shapePos;
if (LineSegmentIntersection.IsLineSegmentsIntersects(lineSegmentVertex1, lineSegmentVertex2, prevPolygonVertex, curPolygonVertex))
{
return(true);
}
prevPolygonVertex = curPolygonVertex;
}
return(false);
}
private static bool IsPolygonAndPolygonIntersects(Shape first, Vector2 firstPos, long firstRot, Shape second, Vector2 secondPos, long secondRot)
{
var polygonShapeFirst = (PolygonShape)first;
var polygonShapeSecond = (PolygonShape)second;
var firstCos = FixedMath.Cos(firstRot);
var firstSin = FixedMath.Sin(firstRot);
var secondCos = FixedMath.Cos(secondRot);
var secondSin = FixedMath.Sin(secondRot);
for (var i = 0; i < polygonShapeFirst.triangleCount; i++)
{
var fa = Rotate(polygonShapeFirst.triangleVertices[i * 3], firstCos, firstSin) + firstPos;
var fb = Rotate(polygonShapeFirst.triangleVertices[i * 3 + 1], firstCos, firstSin) + firstPos;
var fc = Rotate(polygonShapeFirst.triangleVertices[i * 3 + 2], firstCos, firstSin) + firstPos;
for (var j = 0; j < polygonShapeSecond.triangleCount; j++)
{
var sa = Rotate(polygonShapeSecond.triangleVertices[j * 3], secondCos, secondSin) + secondPos;
var sb = Rotate(polygonShapeSecond.triangleVertices[j * 3 + 1], secondCos, secondSin) + secondPos;
var sc = Rotate(polygonShapeSecond.triangleVertices[j * 3 + 2], secondCos, secondSin) + secondPos;
if (TriangleIntersection.IsTrianglesIntersects(fa, fb, fc, sa, sb, sc))
{
return(true);
}
}
}
return(false);
}
internal override void Update()
{
Vector2 moveDir;
if (entity.entityManager.GetEntityPerNameCount("Spaceship") == 0)
{
moveDir = new Vector2(FixedMath.Cos(transform.Rotation), FixedMath.Sin(transform.Rotation));
}
else
{
var spaceship = entity.entityManager.Find(e => e.name == "Spaceship");
moveDir = (spaceship.GetComponent <Transform>().Position - transform.Position).Normalized();
}
moveSpeed += moveDir * Acceleration;
var moveSpeedNormalized = moveSpeed.Normalized(out var mag);
if (mag > MaxMoveSpeed)
{
moveSpeed = moveSpeedNormalized * MaxMoveSpeed;
}
transform.Position += moveSpeed;
transform.Rotation += RotationSpeed;
}
private void OnAdvancedShot()
{
var laser = entity.entityManager.CreateEntity("Laser", entity.Owner);
var spaceshipMoveDir = new Vector2(FixedMath.Cos(transform.Rotation), FixedMath.Sin(transform.Rotation));
laser.GetComponent <LaserController>().Init(entity.Pointer, spaceshipMoveDir);
}
private void OnShot()
{
var bullet = entity.entityManager.CreateEntity("Bullet", entity.Owner);
bullet.GetComponent <Collider>().SetCollisionLayer(CollisionLayersConfig.WeaponLayer);
var bulletTransform = bullet.GetComponent <Transform>();
var spaceshipMoveDir = new Vector2(FixedMath.Cos(transform.Rotation), FixedMath.Sin(transform.Rotation));
//pos with small forward offset
bulletTransform.Rotation = transform.Rotation;
bulletTransform.Position = transform.Position + spaceshipMoveDir * FixedMath.One / 120;
bullet.GetComponent <BulletController>().RecalculateMoveSpeed();
}
internal override void OnCreate()
{
var rnd = entity.entityManager.matchManager.random;
transform.Rotation = rnd.GetRandom((int)(FixedMath.Pi * 2 + 1));
var diff = maxRotationSpeed - minRotationSpeed;
rotationSpeed = minRotationSpeed + rnd.GetRandom((int)diff);
diff = maxMoveSpeed - minMoveSpeed;
var moveSpeedMultiplier = minMoveSpeed + rnd.GetRandom((int)diff);
var dirAngle = rnd.GetRandom((int)(FixedMath.Pi * 2 + 1));
moveSpeed = new Vector2(FixedMath.Cos(dirAngle), FixedMath.Sin(dirAngle)) * moveSpeedMultiplier;
}
internal void RecalculateMoveSpeed()
{
moveSpeed = new Vector2(FixedMath.Cos(transform.Rotation), FixedMath.Sin(transform.Rotation)) * MoveSpeed;
}
internal override void Update()
{
if ((lastControls & MoveForwardMask) != 0)
{
if (moveVelocity >= 0)
{
ApplyAcceleration(1, MoveAcceleration, MaxForwardSpeed, ref moveVelocity);
}
else
{
ApplyBraking(-1, MoveDeceleration, ref moveVelocity);
}
}
else if ((lastControls & MoveBackwardMask) != 0)
{
if (moveVelocity <= 0)
{
ApplyAcceleration(-1, MoveAcceleration, MaxBackwardSpeed, ref moveVelocity);
}
else
{
ApplyBraking(1, MoveDeceleration, ref moveVelocity);
}
}
else
{
ApplyBraking(moveVelocity >= 0 ? 1 : -1, MoveDamping, ref moveVelocity);
}
if ((lastControls & RotateRightMask) != 0)
{
if (rotationVelocity <= 0)
{
ApplyAcceleration(-1, RotationAcceleration, MaxRotationSpeed, ref rotationVelocity);
}
else
{
ApplyBraking(1, RotationDeceleration, ref rotationVelocity);
}
}
else if ((lastControls & RotateLeftMask) != 0)
{
if (rotationVelocity >= 0)
{
ApplyAcceleration(1, RotationAcceleration, MaxRotationSpeed, ref rotationVelocity);
}
else
{
ApplyBraking(-1, RotationDeceleration, ref rotationVelocity);
}
}
else
{
ApplyBraking(rotationVelocity >= 0 ? 1 : -1, RotationDamping, ref rotationVelocity);
}
if ((lastControls & SimpleShotMask) != 0 && entity.entityManager.matchManager.CurrentTick - lastShotTick > SimpleShotCooldown)
{
lastShotTick = entity.entityManager.matchManager.CurrentTick;
OnShot();
}
if ((lastControls & AdvancedShotMask) != 0 && entity.entityManager.matchManager.CurrentTick - lastAdvancedShotTick > AdvancedShotCooldown)
{
lastAdvancedShotTick = entity.entityManager.matchManager.CurrentTick;
OnAdvancedShot();
}
transform.Position += new Vector2(FixedMath.Cos(transform.Rotation), FixedMath.Sin(transform.Rotation)) * moveVelocity;
transform.Rotation += rotationVelocity;
}