public static ObjectAction DoOnce(ObjectAction action)
{
return(ObjectAction.ConditionalNextAction(
currentAction: action,
condition: BooleanExpression.True(),
nextAction: ObjectActionGenerator.Noop()));
}
private static ObjectAction GetSatelliteShootAction(
Dictionary <string, DTDanmakuImage> spriteNameToImageDictionary,
Dictionary <string, EnemyObjectTemplate> enemyObjectTemplates,
GuidGenerator guidGenerator)
{
IMathExpression initialShootCooldownInMillis = MathExpression.RandomInteger(6000);
IMathExpression shootCooldownInMillis = MathExpression.Add(5000, MathExpression.RandomInteger(1000));
string cooldownVariableName = guidGenerator.NextGuid();
ObjectAction initialStartCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, initialShootCooldownInMillis);
ObjectAction startCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, shootCooldownInMillis);
ObjectAction decrementCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, MathExpression.Subtract(MathExpression.Variable(cooldownVariableName), MathExpression.ElapsedMillisecondsPerIteration()));
ObjectAction createBulletAction = SpawnSatelliteBullet(
spriteNameToImageDictionary: spriteNameToImageDictionary,
enemyObjectTemplates: enemyObjectTemplates,
guidGenerator: guidGenerator);
var createBulletWhenCooldownFinishedAction = ObjectAction.Condition(
condition: BooleanExpression.LessThanOrEqualTo(MathExpression.Variable(cooldownVariableName), MathExpression.Constant(0)),
action: ObjectAction.Union(startCooldownAction, createBulletAction));
return(ObjectAction.ConditionalNextAction(
currentAction: initialStartCooldownAction,
condition: BooleanExpression.True(),
nextAction: ObjectAction.Union(decrementCooldownAction, createBulletWhenCooldownFinishedAction)));
}
private static ObjectAction GetShootBulletAction(
Dictionary <string, DTDanmakuImage> spriteNameToImageDictionary,
Dictionary <string, EnemyObjectTemplate> enemyObjectTemplates,
GuidGenerator guidGenerator)
{
IMathExpression initialShootCooldownInMillis = MathExpression.RandomInteger(2750);
IMathExpression shootCooldownInMillis = MathExpression.Add(1750, MathExpression.RandomInteger(1000));
string cooldownVariableName = guidGenerator.NextGuid();
string childObjectTemplateName = guidGenerator.NextGuid();
string enemyBulletSpriteName = guidGenerator.NextGuid();
IMathExpression facingAngleInMillidegrees = DTDanmakuMath.GetMovementDirectionInMillidegrees(
currentX: MathExpression.XMillis(),
currentY: MathExpression.YMillis(),
desiredX: MathExpression.PlayerXMillis(),
desiredY: MathExpression.Min(MathExpression.PlayerYMillis(), 300 * 1000));
DTDanmakuMath.MathExpressionOffset deltaXAndY = DTDanmakuMath.GetOffset(
millipixels: MathExpression.Constant(40000),
movementDirectionInMillidegrees: facingAngleInMillidegrees);
ObjectAction initialStartCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, initialShootCooldownInMillis);
ObjectAction startCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, shootCooldownInMillis);
ObjectAction decrementCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, MathExpression.Subtract(MathExpression.Variable(cooldownVariableName), MathExpression.ElapsedMillisecondsPerIteration()));
ObjectAction createBulletAction = ObjectAction.SpawnChild(
childXMillis: MathExpression.Add(MathExpression.XMillis(), deltaXAndY.DeltaXInMillipixels),
childYMillis: MathExpression.Add(MathExpression.YMillis(), deltaXAndY.DeltaYInMillipixels),
childObjectTemplateName: childObjectTemplateName,
childInitialNumericVariables: null,
childInitialBooleanVariables: null);
List <ObjectBox> collisionBoxes = new List <ObjectBox>();
collisionBoxes.Add(new ObjectBox(lowerXMillis: -4000, upperXMillis: 4000, lowerYMillis: -4000, upperYMillis: 4000));
enemyObjectTemplates.Add(childObjectTemplateName,
EnemyObjectTemplate.EnemyBullet(
action: ObjectAction.Union(GetBulletMovementAction(guidGenerator: guidGenerator), GetBulletAnimationAction(guidGenerator: guidGenerator)),
initialMilliHP: null,
damageBoxes: null,
collisionBoxes: collisionBoxes,
spriteName: enemyBulletSpriteName));
spriteNameToImageDictionary.Add(enemyBulletSpriteName, DTDanmakuImage.EliteSniperEnemyBullet);
var createBulletWhenCooldownFinishedAction = ObjectAction.Condition(
condition: BooleanExpression.LessThanOrEqualTo(MathExpression.Variable(cooldownVariableName), MathExpression.Constant(0)),
action: ObjectAction.Union(startCooldownAction, createBulletAction));
return(ObjectAction.ConditionalNextAction(
currentAction: initialStartCooldownAction,
condition: BooleanExpression.True(),
nextAction: ObjectAction.Union(decrementCooldownAction, createBulletWhenCooldownFinishedAction)));
}
public static ObjectAction MoveToSpecifiedLocations(
// enemy will teleport to this initial location
long initialXMillis,
long initialYMillis,
List <Tuple <long, long> > movementPath,
long speedInPixelsPerSecond,
bool shouldStrafe,
bool shouldDestroyAtEndOfMovementPath,
GuidGenerator guidGenerator)
{
ObjectAction currentAction = shouldDestroyAtEndOfMovementPath
? ObjectAction.Destroy()
: ObjectActionGenerator.Noop();
for (int i = movementPath.Count - 1; i >= 0; i--)
{
long endingX = movementPath[i].Item1;
long endingY = movementPath[i].Item2;
long startingX = i == 0
? initialXMillis
: movementPath[i - 1].Item1;
long startingY = i == 0
? initialYMillis
: movementPath[i - 1].Item2;
Tuple <ObjectAction, BooleanExpression> helper = MoveToSpecifiedLocations_Helper(
startingXMillis: startingX,
startingYMillis: startingY,
endingXMillis: endingX,
endingYMillis: endingY,
speedInPixelsPerSecond: speedInPixelsPerSecond,
shouldStrafe: shouldStrafe,
guidGenerator: guidGenerator);
currentAction = ObjectAction.ConditionalNextAction(
currentAction: helper.Item1,
condition: helper.Item2,
nextAction: currentAction);
}
ObjectAction teleportToInitialLocation = ObjectAction.SetPosition(
xMillis: MathExpression.Constant(initialXMillis),
yMillis: MathExpression.Constant(initialYMillis));
return(ObjectAction.ConditionalNextAction(
currentAction: teleportToInitialLocation,
condition: BooleanExpression.True(),
nextAction: currentAction));
}
public static ObjectAction Delay(
ObjectAction action,
long milliseconds,
GuidGenerator guidGenerator)
{
string guid = guidGenerator.NextGuid();
return(ObjectAction.ConditionalNextAction(
currentAction: ObjectAction.SetNumericVariable(guid, MathExpression.Constant(0)),
condition: BooleanExpression.True(),
nextAction: ObjectAction.ConditionalNextAction(
currentAction: ObjectAction.SetNumericVariable(guid, MathExpression.Add(MathExpression.ElapsedMillisecondsPerIteration(), MathExpression.Variable(guid))),
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(guid), MathExpression.Constant(milliseconds)),
nextAction: action)));
}
public static ObjectAction ShootBulletStraightDownAction(
IMathExpression initialShootCooldownInMillis,
IMathExpression shootCooldownInMillis,
// Where the bullet should spawn (relative to the enemy shooting the bullet)
long xOffset,
long yOffset,
long bulletSpeedInPixelsPerSecond,
Dictionary <string, DTDanmakuImage> spriteNameToImageDictionary,
Dictionary <string, EnemyObjectTemplate> enemyObjectTemplates,
GuidGenerator guidGenerator)
{
string cooldownVariableName = guidGenerator.NextGuid();
string childObjectTemplateName = guidGenerator.NextGuid();
string enemyBulletSpriteName = guidGenerator.NextGuid();
ObjectAction initialStartCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, initialShootCooldownInMillis);
ObjectAction startCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, shootCooldownInMillis);
ObjectAction decrementCooldownAction = ObjectAction.SetNumericVariable(cooldownVariableName, MathExpression.Subtract(MathExpression.Variable(cooldownVariableName), MathExpression.ElapsedMillisecondsPerIteration()));
ObjectAction createBulletAction = ObjectAction.SpawnChild(
childXMillis: MathExpression.Add(MathExpression.XMillis(), MathExpression.Constant(xOffset)),
childYMillis: MathExpression.Add(MathExpression.YMillis(), MathExpression.Constant(yOffset)),
childObjectTemplateName: childObjectTemplateName,
childInitialNumericVariables: null,
childInitialBooleanVariables: null);
List <ObjectBox> collisionBoxes = new List <ObjectBox>();
collisionBoxes.Add(new ObjectBox(lowerXMillis: -3000, upperXMillis: 3000, lowerYMillis: -23000, upperYMillis: 23000));
enemyObjectTemplates.Add(childObjectTemplateName,
EnemyObjectTemplate.EnemyBullet(
action: BulletStraightDownAction(bulletSpeedInPixelsPerSecond: bulletSpeedInPixelsPerSecond),
initialMilliHP: null,
damageBoxes: null,
collisionBoxes: collisionBoxes,
spriteName: enemyBulletSpriteName));
spriteNameToImageDictionary.Add(enemyBulletSpriteName, DTDanmakuImage.EnemyBullet);
var createBulletWhenCooldownFinishedAction = ObjectAction.Condition(
condition: BooleanExpression.LessThanOrEqualTo(MathExpression.Variable(cooldownVariableName), MathExpression.Constant(0)),
action: ObjectAction.Union(startCooldownAction, createBulletAction));
return(ObjectAction.ConditionalNextAction(
currentAction: initialStartCooldownAction,
condition: BooleanExpression.True(),
nextAction: ObjectAction.Union(decrementCooldownAction, createBulletWhenCooldownFinishedAction)));
}
private static ObjectAction GetMoveAction(
GuidGenerator guidGenerator)
{
string variableName = guidGenerator.NextGuid();
ObjectAction initializeVariable = ObjectAction.SetNumericVariable(
variableName: variableName,
variableValue: MathExpression.Constant(0));
ObjectAction incrementVariable = ObjectAction.SetNumericVariable(
variableName: variableName,
variableValue: MathExpression.Add(MathExpression.Variable(variableName), MathExpression.ElapsedMillisecondsPerIteration()));
ObjectAction initializeAndIncrementVariable = ObjectAction.ConditionalNextAction(
currentAction: initializeVariable,
condition: BooleanExpression.True(),
nextAction: incrementVariable);
ObjectAction teleportToInitialLocation = ObjectAction.SetPosition(
xMillis: MathExpression.Add(50 * 1000, MathExpression.RandomInteger(900 * 1000)),
yMillis: MathExpression.Constant(800 * 1000));
ObjectAction faceTowardsPlayer = ObjectAction.Move(
moveToXMillis: MathExpression.PlayerXMillis(),
moveToYMillis: MathExpression.Min(MathExpression.PlayerYMillis(), 300 * 1000));
ObjectAction setInitialSpeed = ObjectActionGenerator.DoOnce(
ObjectAction.SetSpeed(
speedInMillipixelsPerMillisecond: MathExpression.Constant(60)));
ObjectAction slowDownSpeed1 = ObjectAction.Condition(
condition: BooleanExpression.GreaterThanOrEqualTo(
MathExpression.Variable(variableName),
1 * 1000),
action: ObjectActionGenerator.DoOnce(
ObjectAction.SetSpeed(
speedInMillipixelsPerMillisecond: MathExpression.Constant(40))));
ObjectAction slowDownSpeed2 = ObjectAction.Condition(
condition: BooleanExpression.GreaterThanOrEqualTo(
MathExpression.Variable(variableName),
2 * 1000),
action: ObjectActionGenerator.DoOnce(
ObjectAction.SetSpeed(
speedInMillipixelsPerMillisecond: MathExpression.Constant(20))));
ObjectAction stopMovement = ObjectAction.Condition(
condition: BooleanExpression.GreaterThanOrEqualTo(
MathExpression.Variable(variableName),
3 * 1000),
action: ObjectActionGenerator.DoOnce(
ObjectAction.SetSpeed(
speedInMillipixelsPerMillisecond: MathExpression.Constant(0))));
BooleanExpression ShouldLeave1 = BooleanExpression.GreaterThanOrEqualTo(
MathExpression.Variable(variableName),
10 * 1000);
ObjectAction leave1 = ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Add(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.ElapsedMillisecondsPerIteration(), MathExpression.Constant(25))));
ObjectAction leave1ConditionalAction = ObjectAction.Condition(
condition: ShouldLeave1,
action: leave1);
BooleanExpression shouldLeave2 = BooleanExpression.GreaterThanOrEqualTo(
MathExpression.Variable(variableName),
11 * 1000);
ObjectAction leave2 = ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Add(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.ElapsedMillisecondsPerIteration(), MathExpression.Constant(50))));
ObjectAction leave2ConditionalAction = ObjectAction.ConditionalNextAction(
currentAction: leave1ConditionalAction,
condition: shouldLeave2,
nextAction: leave2);
ObjectAction shouldDestroy = ObjectAction.Condition(
condition: BooleanExpression.And(shouldLeave2, BooleanExpression.GreaterThanOrEqualTo(MathExpression.YMillis(), 800 * 1000)),
action: ObjectAction.Destroy());
return(ObjectAction.ConditionalNextAction(
currentAction: teleportToInitialLocation,
condition: BooleanExpression.True(),
nextAction: ObjectAction.Union(faceTowardsPlayer, initializeAndIncrementVariable, setInitialSpeed, slowDownSpeed1, slowDownSpeed2, stopMovement, leave2ConditionalAction, shouldDestroy)));
}
private static Tuple <ObjectAction, BooleanExpression> MoveToSpecifiedLocations_Helper(
long startingXMillis,
long startingYMillis,
long endingXMillis,
long endingYMillis,
long speedInPixelsPerSecond,
bool shouldStrafe,
GuidGenerator guidGenerator)
{
string variableName = guidGenerator.NextGuid();
string variableName2 = guidGenerator.NextGuid();
long?direction = DTDanmakuMath.GetMovementDirectionInMillidegrees(
currentX: startingXMillis,
currentY: startingYMillis,
desiredX: endingXMillis,
desiredY: endingYMillis);
if (direction == null)
{
throw new Exception();
}
DTDanmakuMath.Offset offset = DTDanmakuMath.GetOffset(
speedInMillipixelsPerMillisecond: speedInPixelsPerSecond, // millipixels/millisecond is equivalent to pixels/second
movementDirectionInMillidegrees: direction.Value,
elapsedMillisecondsPerIteration: 1000); // Use the 1000 to help prevent rounding issues
ObjectAction moveAction = ObjectAction.SetPosition(
xMillis: MathExpression.Add(MathExpression.XMillis(), MathExpression.Divide(MathExpression.Multiply(MathExpression.Constant(offset.DeltaXInMillipixels), MathExpression.ElapsedMillisecondsPerIteration()), MathExpression.Constant(1000))),
yMillis: MathExpression.Add(MathExpression.YMillis(), MathExpression.Divide(MathExpression.Multiply(MathExpression.Constant(offset.DeltaYInMillipixels), MathExpression.ElapsedMillisecondsPerIteration()), MathExpression.Constant(1000))));
ObjectAction setDirectionAction = shouldStrafe
? ObjectAction.SetFacingDirection(facingDirectionInMillidegrees: MathExpression.Constant(180 * 1000))
: ObjectAction.SetFacingDirection(facingDirectionInMillidegrees: MathExpression.Constant(direction.Value));
IMathExpression deltaX = MathExpression.AbsoluteValue(MathExpression.Subtract(MathExpression.XMillis(), MathExpression.Constant(endingXMillis)));
IMathExpression deltaY = MathExpression.AbsoluteValue(MathExpression.Subtract(MathExpression.YMillis(), MathExpression.Constant(endingYMillis)));
IMathExpression totalDelta = MathExpression.Add(deltaX, deltaY);
ObjectAction setDeltaToVariable = ObjectAction.Union(
ObjectAction.SetNumericVariable(variableName: variableName2, variableValue: MathExpression.Variable(variableName)),
ObjectAction.SetNumericVariable(variableName: variableName, variableValue: totalDelta));
BooleanExpression reachedDestination = BooleanExpression.And(
BooleanExpression.LessThanOrEqualTo(
MathExpression.Variable(variableName2),
MathExpression.Variable(variableName)),
BooleanExpression.And(
BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName), MathExpression.Constant(0)),
BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName2), MathExpression.Constant(0))
));
ObjectAction initializeVariables = ObjectAction.Union(
ObjectAction.SetNumericVariable(variableName: variableName, variableValue: MathExpression.Constant(-1)),
ObjectAction.SetNumericVariable(variableName: variableName2, variableValue: MathExpression.Constant(-1)));
return(new Tuple <ObjectAction, BooleanExpression>(
ObjectAction.Union(
moveAction,
setDirectionAction,
ObjectAction.ConditionalNextAction(
currentAction: initializeVariables,
condition: BooleanExpression.True(),
nextAction: setDeltaToVariable)),
reachedDestination));
}
// Returns true if player still has at least one life remaining
// Returns false if game over
public bool DestroyPlayer(
List <EnemyObject> enemyObjects,
long elapsedMillisecondsPerIteration,
IDTDeterministicRandom rng)
{
if (this.isDead)
{
throw new Exception();
}
long playerXMillis = this.xMillis;
long playerYMillis = this.yMillis;
EnemyObjectTemplate template = EnemyObjectTemplate.Placeholder(action: ObjectAction.ConditionalNextAction(
currentAction: this.playerDeathSpawnDestructionAnimationAction,
condition: BooleanExpression.True(),
nextAction: ObjectAction.Destroy()));
enemyObjects.Add(new EnemyObject(
template: template,
initialXMillis: playerXMillis,
initialYMillis: playerYMillis,
playerXMillis: playerXMillis,
playerYMillis: playerYMillis,
elapsedMillisecondsPerIteration: elapsedMillisecondsPerIteration,
isPlayerDestroyed: true,
parent: null,
initialNumericVariables: null,
initialBooleanVariables: null,
rng: rng));
this.isDead = true;
if (this.numLivesLeft > 0)
{
this.numLivesLeft = this.numLivesLeft - 1;
this.respawnTimeRemainingMillis = 750;
return(true);
}
else
{
return(false);
}
}
private static ObjectAction GetMoveAndSetCanShootVariableAction(
IMathExpression xMillis,
GuidGenerator guidGenerator)
{
string variableName = guidGenerator.NextGuid();
ObjectAction initializeVariable = ObjectAction.SetNumericVariable(
variableName: variableName,
variableValue: MathExpression.Constant(0));
ObjectAction incrementVariable = ObjectAction.SetNumericVariable(
variableName: variableName,
variableValue: MathExpression.Add(MathExpression.Variable(variableName), MathExpression.ElapsedMillisecondsPerIteration()));
ObjectAction initializeAndIncrementVariable = ObjectAction.ConditionalNextAction(
currentAction: initializeVariable,
condition: BooleanExpression.True(),
nextAction: incrementVariable);
ObjectAction teleportToInitialLocation = ObjectAction.SetPosition(
xMillis: xMillis,
yMillis: MathExpression.Constant(800 * 1000));
ObjectAction moveDownSpeed1 = ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Subtract(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.Constant(100), MathExpression.ElapsedMillisecondsPerIteration())));
ObjectAction moveDownSpeed2 = ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Subtract(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.Constant(70), MathExpression.ElapsedMillisecondsPerIteration())));
ObjectAction moveDownSpeed3 = ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Subtract(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.Constant(30), MathExpression.ElapsedMillisecondsPerIteration())));
ObjectAction stopMovement = ObjectAction.Union(
ObjectActionGenerator.Noop(),
ObjectActionGenerator.DoOnce(ObjectAction.SetBooleanVariable("can shoot", BooleanExpression.True())));
ObjectAction moveUpSpeed1 = ObjectAction.Union(
ObjectActionGenerator.DoOnce(ObjectAction.SetBooleanVariable("can shoot", BooleanExpression.False())),
ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Add(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.Constant(30), MathExpression.ElapsedMillisecondsPerIteration()))));
ObjectAction moveUpSpeed2 = ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Add(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.Constant(70), MathExpression.ElapsedMillisecondsPerIteration())));
ObjectAction moveUpSpeed3 = ObjectAction.SetPosition(
xMillis: MathExpression.XMillis(),
yMillis: MathExpression.Add(MathExpression.YMillis(), MathExpression.Multiply(MathExpression.Constant(100), MathExpression.ElapsedMillisecondsPerIteration())));
ObjectAction destroyAction = ObjectAction.Condition(
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.YMillis(), MathExpression.Constant(800 * 1000)),
action: ObjectAction.Destroy());
return(ObjectAction.Union(
ObjectActionGenerator.DoOnce(ObjectAction.SetBooleanVariable("can shoot", BooleanExpression.False())),
initializeAndIncrementVariable,
ObjectActionGenerator.DoOnce(teleportToInitialLocation),
ObjectAction.ConditionalNextAction(
currentAction: moveDownSpeed1,
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName), MathExpression.Constant(3000)),
nextAction: ObjectAction.ConditionalNextAction(
currentAction: moveDownSpeed2,
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName), MathExpression.Constant(4000)),
nextAction: ObjectAction.ConditionalNextAction(
currentAction: moveDownSpeed3,
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName), MathExpression.Constant(5000)),
nextAction: ObjectAction.ConditionalNextAction(
currentAction: stopMovement,
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName), MathExpression.Constant(12000)),
nextAction: ObjectAction.ConditionalNextAction(
currentAction: moveUpSpeed1,
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName), MathExpression.Constant(13000)),
nextAction: ObjectAction.ConditionalNextAction(
currentAction: moveUpSpeed2,
condition: BooleanExpression.GreaterThanOrEqualTo(MathExpression.Variable(variableName), MathExpression.Constant(14000)),
nextAction: ObjectAction.Union(moveUpSpeed3, destroyAction)))))))));
}
