public static float EstimateScore(PlayerId pId, GameState state, Input move, Vector2 target)
{
// prof.Start ();
float similarity;
if (move == Input.Noop) {
similarity = 0f;
} else {
var player = state.Player (pId);
Vector2 gravOffset = state.IsGrounded (player) ? Vector2.Zero : gravVector;
Vector2 targetVector = Vector2.Subtract (target, player.Target + gravOffset);
Vector2.Normalize (targetVector);
// Debug.WriteLine("targetVector: {0}", gravOffset);
similarity = (float)Util.CosineSimilarity(targetVector, moveVectors [move]);
}
// prof.End ();
return -similarity;
}
public GameState nextState(GameState state, Input input1, Input input2, int nSteps = 1)
{
loadState (state);
Debug.WriteLineIf ((Vector2.Distance (physP1.Fixture.Body.Position, state.P1.Coords) > 0.001f ||
Vector2.Distance (physP2.Fixture.Body.Position, state.P2.Coords) > 0.001f),
"The gamestate and forwardmodel are out of sync"
);
return nextState (state.Health, input1, input2, nSteps);
}
public static GameState nextState(ForwardModel forwardModel, GameState game,
Input p1move, Input p2move, int nSteps = 1)
{
GameState lastState = game;
int intermediateSteps = 1; // set to match a reasonable Gameloop#humanInputDelayFrames() value...
for (int i = 0; i < intermediateSteps; i++) {
lastState = forwardModel.nextState(lastState, p1move, p2move, nSteps);
}
return lastState;
}
protected GameState nextState(GameState state, Input move, int nSteps = 1)
{
return pId == PlayerId.P1 ?
nextState (forwardModel, state, move, predictPartnerInput (state), nSteps) :
nextState (forwardModel, state, predictPartnerInput (state), move, nSteps);
}
protected float EstimateScore(GameState state, Input move, Vector2 target)
{
return EstimateScore (this.pId, state, move, target);
}
public abstract float EstimateScore(GameState state, Input move);
public override float EstimateScore(GameState state, Input input)
{
GameObject target = NextPlatform (state);
return EstimateScore (state, input, target.Target);
}
public override float EstimateScore(GameState state, Input input)
{
return EstimateScore (state, input, state.Goal.Target);
}
private GameState nextState(float oldHealth, Input input1, Input input2, int nSteps = 1)
{
// Calculate physics
physP1.movePlayer (input1);
physP2.movePlayer (input2);
const float stepSize = 1 / 20f;
world.Step (nSteps * stepSize); // XXX: pass in the right time-step
Vector2 c1 = physP1.Fixture.Body.Position;
Vector2 c2 = physP2.Fixture.Body.Position;
Vector2 v1 = physP1.Fixture.Body.LinearVelocity;
Vector2 v2 = physP2.Fixture.Body.LinearVelocity;
// Assign values to GameState
GameState next = initialState.Clone (
p1: initialState.P1.Clone (c1, v1),
p2: initialState.P2.Clone (c2, v2),
health: HealthControl.Health (oldHealth, c1, c2)
);
return next;
}
public bool Equals(Input p)
{
// If parameter is null return false:
if ((object)p == null)
{
return false;
}
// Return true if the fields match:
return (left == p.left) && (right == p.right) && (up == p.up);
}
public void DrawButtonArrow(Player p, Input input, Color c)
{
var size = new Vector2 (1f, 0.5f) * Player.Size;
double rotation = 0;
Vector2 offset;
// Debug.WriteLine ("{0}: {1}", input.shortString(), input.ToInt);
switch (input.ToInt) {
case 1: //Input.Up.ToInt:
rotation = 0;
offset = new Vector2 (0, 1);
break;
case 2: //Input.Right.ToInt:
rotation = 0.5;
offset = new Vector2 (1, 0);
break;
case 3: //Input.UpRight.ToInt:
rotation = 0.25;
offset = new Vector2 (1, 1);
break;
case 4: //Input.Left.ToInt:
rotation = -.5;
offset = new Vector2 (-1, 0);
break;
case 5: //Input.UpLeft.ToInt:
rotation = -.25;
offset = new Vector2 (-1, 1);
break;
default: // This can happen when pressing left/right at the same time
rotation = 1;
offset = new Vector2 (0, -1);
// throw new KeyNotFoundException ();
break;
}
DrawTriangle (size, p.Center + (offset * Player.Size), (float)(Math.PI*rotation), c);
}
public float EstimateScore(GameState state, Input move1, Input move2,
Vector2 target1, Vector2 target2)
{
return WaypointHeuristic.EstimateScore (PlayerId.P1, state, move1, target1) +
WaypointHeuristic.EstimateScore (PlayerId.P2, state, move2, target2);
}
public override void movePlayer(Input input, float dt = 0.2f)
{
float mx = fix.Body.LinearVelocity.X;
float my = fix.Body.LinearVelocity.Y;
bool jumpButton = input.up;
//TODO this will repeatedly jump and not respect stateful jump boosting
if (jumpButton && Grounded) {
my = JumpVelocity;
} else if (!jumpButton && !Grounded && my > 0.0f) {
my *= VariableJumpDampening;
}
// if (!jumpButton)
// holdingJumpButton = false;
//
// if (jumpButton && !holdingJumpButton && Grounded)
// {
// my = JumpVelocity;
// holdingJumpButton = true;
// }
// else if (!Grounded)
// {
// if (!holdingJumpButton && my > 0.0f) {
// my *= VariableJumpDampening;
// }
// }
float inputAxis = -1.0f * (input.left ? 1 : 0) + 1.0f * (input.right ? 1 : 0);
float target = inputAxis * MaxMoveSpeed;
float accel = (Grounded ? GroundMoveAccel : AirMoveAccel) * inputAxis * dt;
bool hasInput = inputAxis != 0 ? true : false;
bool isMoving = mx > 0.0f ? true : false;
bool isAccelerating = hasInput && (!isMoving || (Math.Sign(target) == Math.Sign(mx) && Math.Abs(target) >= Math.Abs(mx)));
bool isMovingBackward = hasInput && isMoving && Math.Sign(target) != Math.Sign(mx);
bool frictionApplies = !hasInput || (!isAccelerating && !isMovingBackward);
if (isAccelerating)
{
mx += accel;
}
else if (isMovingBackward)
{
mx += accel * 2.0f;
}
if (frictionApplies)
{
float drag = (Grounded ? GroundFriction : AirFriction) * dt;
mx -= Math.Sign(mx) * Math.Min(Math.Abs(mx), drag);
}
float max = Math.Abs(target);
mx = Util.clamp(mx, -max, max);
fix.Body.LinearVelocity = new Vector2(mx, my);
}
public abstract void movePlayer(Input input, float dt = 0.2f);