public override void _Ready()
{
// local to parent
var result = Transform.Xform(new Vector2(10, 10));
GD.Print("(10,10), local to parent: ", result);
// parent to local
var result2 = Transform.Inverse().Xform(result);
GD.Print($"{result}, parent to local: ", result2);
var result3 = Transform.XformInv(result);
GD.Print("parent to local, way 2: ", result3);
// local to global
var result4 = GlobalTransform.Xform(new Vector2(10, 10));
GD.Print("(10,10), local to global: ", result4);
// global to local
var result5 = GlobalTransform.XformInv(result4);
GD.Print($"{result4}, global to local");
// sibling to sibling
var sibling = GetNode <Godot.Sprite>("../Child2");
var asGlobal = GlobalTransform.Xform(new Vector2(10, 10));
var result6 = sibling.GlobalTransform.XformInv(asGlobal);
GD.Print("(10,10), local to sibling: ", result6);
}
public override void _PhysicsProcess(float delta)
{
if (_test_shoot)
{
Shoot();
_test_shoot = false;
}
if (_dead)
{
return;
}
if (_player == null)
{
_animationTree.Set("arameters/state/current", 0); //Go idle.
return;
}
if (_state == StateEnum.Approach)
{
if (_aimPreparing > 0.0)
{
_aimPreparing -= delta;
if (_aimPreparing < 0.0)
{
_aimPreparing = 0;
}
_animationTree.Set("parameters/aiming/blend_amount", _aimPreparing / AimPrepareTime);
}
var toPlayerLocal = GlobalTransform.XformInv(_player.GlobalTransform.origin);
// The front of the robot is +Z, and atan2 is zero at +X, so we need to use the Z for the X parameter (second one).
var angleToPlayer = Mathf.Atan2(toPlayerLocal.x, toPlayerLocal.z);
var tolerance = Mathf.Deg2Rad(PlayerAimToleranceDegrees);
if (angleToPlayer > tolerance)
{
_animationTree.Set("parameters/state/current", 1);
}
else if (angleToPlayer < -tolerance)
{
_animationTree.Set("parameters/state/current", 2);
}
else
{
_animationTree.Set("parameters/state/current", 3);
// Facing player, try to shoot.
_shootCountdown -= delta;
if (_shootCountdown < 0.0)
{
// See if player can be killed because in they're sight.
var rayOrigin = _rayFrom.GlobalTransform.origin;
var rayTo = _player.GlobalTransform.origin + Vector3.Up; // Above middle of player.
var col = GetWorld().DirectSpaceState.IntersectRay(rayOrigin, rayTo, new Godot.Collections.Array()
{
this
});
if (col.Count > 0 && col["collider"] is PlayerEntity)
{
_state = StateEnum.Aim;
_aimCountdown = AimTime;
_aimPreparing = 0;
_animationTree.Set("parameters/state/current", 0);
}
else
{
_shootCountdown = ShootWait;
}
}
}
}
else if (_state == StateEnum.Aim || _state == StateEnum.Shooting)
{
if (_aimPreparing < AimPrepareTime)
{
_aimPreparing += delta;
if (_aimPreparing > AimPrepareTime)
{
_aimPreparing = AimPrepareTime;
}
}
_animationTree.Set("parameters/aiming/blend_amount", Mathf.Clamp(_aimPreparing / AimPrepareTime, 0, 1));
_aimCountdown -= delta;
if (_aimCountdown < 0 && _state == StateEnum.Aim)
{
var rayOrigin = _rayFrom.GlobalTransform.origin;
var rayTo = _player.GlobalTransform.origin + Vector3.Up; // Above middle of player.
var col = GetWorld().DirectSpaceState.IntersectRay(rayOrigin, rayTo, new Godot.Collections.Array()
{
this
});
if (col.Count > 0 && col["collider"] is PlayerEntity)
{
_state = StateEnum.Shooting;
_shootAnimation.Play("shoot");
}
else
{
ResumeApproach();
}
}
if (_animationTree.Active)
{
var toCannonLocal = _rayMesh.GlobalTransform.XformInv(_player.GlobalTransform.origin + Vector3.Up);
var hAngle = Mathf.Rad2Deg(Mathf.Atan2(toCannonLocal.x, -toCannonLocal.z));
var vAngle = Mathf.Rad2Deg(Mathf.Atan2(toCannonLocal.y, -toCannonLocal.z));
var blendPos = (Vector2)_animationTree.Get("parameters/aim/blend_position");
var hMotion = BlendAimSpeed * delta * -hAngle;
blendPos.x += hMotion;
blendPos.x = Mathf.Clamp(blendPos.x, -1, 1);
var vMotion = BlendAimSpeed * delta * vAngle;
blendPos.y += vMotion;
blendPos.y = Mathf.Clamp(blendPos.y, -1, 1);
_animationTree.Set("parameters/aim/blend_position", blendPos);
}
}
_orientation *= _animationTree.GetRootMotionTransform();
var hVelocity = _orientation.origin / delta;
_velocity.x = hVelocity.x;
_velocity.z = hVelocity.z;
_velocity += _gravity * delta;
_velocity = MoveAndSlide(_velocity, Vector3.Up);
_orientation.origin = new Vector3();
_orientation = _orientation.Orthonormalized();
var gt = GlobalTransform;
gt.basis = _orientation.basis;
GlobalTransform = gt;
}