private void SpawnDistractors(TrialVars variables)
{
float dist = variables.A - ((targetRadius * 2.0f) + targetMargin) * 2.0f - (targetRadius * 0.5f);
float spacing = (targetRadius * 2.0f + (targetMargin * 0.5f));
// Distractors in the cone
int interDistractors = (variables.D != 0) ? (int)(dist / (spacing / variables.D)) : 0;
// Distractors outside the cone
int remDistractors = Mathf.FloorToInt(maxTargets * variables.D) - interDistractors;
// Spawn intermediate distractors within cone
for (int i = 0; i < interDistractors; i++)
{
GameObject target = InstantiateTarget(distractorPrefab, new Vector2(0.0f, 0.0f), targetRadius);
float newSpacing = (spacing / variables.D) * (i + 1);
Vector2 perpVec = ((i + 1) % 2 == 0) ? Vector2.Perpendicular(sliceDir) : Vector2.Perpendicular(-sliceDir);
Vector2 x = sliceOrigin + (sliceDir * newSpacing);
Vector2 y = x + (perpVec.normalized * Random.Range(targetRadius * 0.5f, (newSpacing * Mathf.Tan(Mathf.Deg2Rad * (distractorConeAngle * 0.5f)))));
target.transform.localPosition = y;
}
for (int i = 0; i < remDistractors; i++)
{
GameObject target = InstantiateTarget(distractorPrefab, new Vector2(0.0f, 0.0f), targetRadius);
do
{
target.transform.localPosition = randomTargetPos();
} while (checkOverlap(target));
}
}
private void storeTrial()
{
TrialVars trialVars = (TrialVars)ICurrentTrial.Current;
trialData.amplitude = trialVars.A;
trialData.distractorDesnity = trialVars.D;
trialData.effectiveWidth = trialVars.W;
blockData.trials.Add(trialData);
trialData = new TrialData();
}
private void SpawnGoal(TrialVars variables)
{
GoalObject = InstantiateTarget(goalPrefab, new Vector2(0.0f, 0.0f), targetRadius);
Vector2 randomPos;
Vector2 distVec;
// Set the location of the goal target
do
{
// Generate a random point in the experiment area
randomPos = randomTargetPos();
// Get the vector from the last goal position to the random point
distVec = lastGoalPos - randomPos;
// Adjust the vector to have the correct amplitude
distVec = distVec.normalized * variables.A;
// Set the new goal position
GoalObject.transform.localPosition = lastGoalPos + distVec;
} while (!checkInBounds(GoalObject));
// Set the slice origin and direction
sliceOrigin = lastGoalPos;
sliceDir = distVec.normalized;
float randomAngle = Random.Range(0.0f, 90.0f);
// Four Distractors to control Goal Target's Effective Width
for (int i = 0; i < 4; i++)
{
GameObject target = InstantiateTarget(distractorPrefab, new Vector2(0.0f, 0.0f), targetRadius);
Vector2 dir = lastGoalPos - (Vector2)GoalObject.transform.localPosition;
float sign = (GoalObject.transform.localPosition.y < lastGoalPos.y) ? -1.0f : 1.0f;
float offset = (targetRadius * 2f) + targetMargin;
float angle = Mathf.Deg2Rad * (randomAngle + (90.0f * i));
Vector2 pos2d = new Vector2(Mathf.Sin(angle) * offset, Mathf.Cos(angle) * offset) + (Vector2)GoalObject.transform.localPosition;
target.transform.localPosition = pos2d;
}
lastGoalPos = GoalObject.transform.localPosition;
}
private void genCombinations()
{
// Instantiate an array to contain all the combinations
combinations = new TrialVars[numTrials];
int combIndex = 0;
// Iterate through each combination and populate the array
for (int AIndex = 0; AIndex < A.Length; AIndex++)
{
for (int DIndex = 0; DIndex < D.Length; DIndex++)
{
for (int WIndex = 0; WIndex < W.Length; WIndex++)
{
combinations[combIndex++] = new TrialVars(A[AIndex], D[DIndex], W[WIndex]);
}
}
}
}
// Spawn the targets for a trial given a set of variables
public void spawnTrialTargets(TrialVars variables)
{
clearTargets();
SpawnGoal(variables);
SpawnDistractors(variables);
}
