private static ObjectAction Phase3ShootAction(
Dictionary <string, DTDanmakuImage> spriteNameToImageDictionary,
Dictionary <string, EnemyObjectTemplate> enemyObjectTemplates,
GuidGenerator guidGenerator)
{
string angleVariable = guidGenerator.NextGuid();
string shootCooldownVariable = guidGenerator.NextGuid();
ObjectAction initializeAngleVariable = ObjectActionGenerator.DoOnce(
ObjectAction.SetNumericVariable(angleVariable, MathExpression.Constant(0)));
ObjectAction updateAngleVariableAction = ObjectAction.Union(
ObjectAction.SetNumericVariable(
angleVariable,
MathExpression.Add(MathExpression.Variable(angleVariable), MathExpression.Multiply(MathExpression.Constant(431), MathExpression.ElapsedMillisecondsPerIteration()))),
ObjectAction.Condition(
condition: BooleanExpression.GreaterThan(MathExpression.Variable(angleVariable), MathExpression.Constant(360 * 1000)),
action: ObjectAction.SetNumericVariable(angleVariable, MathExpression.Subtract(MathExpression.Variable(angleVariable), MathExpression.Constant(360 * 1000)))),
ObjectAction.Condition(
condition: BooleanExpression.GreaterThan(MathExpression.Variable(angleVariable), MathExpression.Constant(360 * 1000)),
action: ObjectAction.SetNumericVariable(angleVariable, MathExpression.Constant(0))));
ObjectAction createBulletAction1 = SpawnPhase3Bullet(
bulletDirectionInMillidegrees: MathExpression.Multiply(MathExpression.ParentVariable(angleVariable), MathExpression.Constant(1)),
spriteNameToImageDictionary: spriteNameToImageDictionary,
enemyObjectTemplates: enemyObjectTemplates,
guidGenerator: guidGenerator);
ObjectAction createBulletAction2 = SpawnPhase3Bullet(
bulletDirectionInMillidegrees: MathExpression.Multiply(MathExpression.ParentVariable(angleVariable), MathExpression.Constant(-1)),
spriteNameToImageDictionary: spriteNameToImageDictionary,
enemyObjectTemplates: enemyObjectTemplates,
guidGenerator: guidGenerator);
IMathExpression shootCooldownInMillis = MathExpression.Constant(20);
ObjectAction startCooldownAction = ObjectAction.SetNumericVariable(shootCooldownVariable, shootCooldownInMillis);
ObjectAction decrementCooldownAction = ObjectAction.SetNumericVariable(shootCooldownVariable, MathExpression.Subtract(MathExpression.Variable(shootCooldownVariable), MathExpression.ElapsedMillisecondsPerIteration()));
ObjectAction createBulletWhenCooldownFinishedAction = ObjectAction.Condition(
condition: BooleanExpression.LessThanOrEqualTo(MathExpression.Variable(shootCooldownVariable), MathExpression.Constant(0)),
action: ObjectAction.Union(startCooldownAction, createBulletAction1, createBulletAction2));
return(ObjectAction.Union(
initializeAngleVariable,
updateAngleVariableAction,
ObjectActionGenerator.DoOnce(ObjectAction.SetNumericVariable(shootCooldownVariable, MathExpression.Constant(1000))),
decrementCooldownAction,
createBulletWhenCooldownFinishedAction));
}
private static Tuple <ObjectAction, EnemyObjectTemplate> SpawnOneDestructionSpriteImage(
long startMilliseconds,
long endMilliseconds,
string childObjectTemplateName,
string spriteName,
bool isLast)
{
List <ObjectAction> destroyActions = new List <ObjectAction>();
destroyActions.Add(ObjectAction.Destroy());
destroyActions.Add(ObjectAction.DestroyParent());
ObjectAction destroySelfAction = ObjectAction.Condition(
condition: BooleanExpression.GreaterThanOrEqualTo(
leftSide: MathExpression.ParentVariable(elapsedTimeInMillisVariableName),
rightSide: MathExpression.Constant(endMilliseconds)),
action: isLast ? ObjectAction.Union(destroyActions) : ObjectAction.Destroy());
ObjectAction spawnChildAction = ObjectAction.SpawnChild(
childXMillis: MathExpression.XMillis(),
childYMillis: MathExpression.YMillis(),
childObjectTemplateName: childObjectTemplateName,
childInitialNumericVariables: null,
childInitialBooleanVariables: null);
ObjectAction delayedSpawnChildAction =
ObjectAction.Condition(
condition: BooleanExpression.GreaterThanOrEqualTo(
leftSide: MathExpression.Variable(elapsedTimeInMillisVariableName),
rightSide: MathExpression.Constant(startMilliseconds)),
action: ObjectActionGenerator.DoOnce(spawnChildAction));
EnemyObjectTemplate template = EnemyObjectTemplate.Enemy(
action: destroySelfAction,
initialMilliHP: null,
damageBoxes: null,
collisionBoxes: null,
spriteName: spriteName);
return(new Tuple <ObjectAction, EnemyObjectTemplate>(delayedSpawnChildAction, template));
}