private Object interpretCollision(String formula) {
int start = 0;
String collidesWithTag =
CatroidApplication.getAppContext().getString(R.string.formula_editor_function_collision);
int end = formula.indexOf(collidesWithTag) - 1;
String firstSpriteName = formula.substring(start, end);
start = end + collidesWithTag.length() + 2;
end = formula.length();
String secondSpriteName = formula.substring(start, end);
Look firstLook;
Look secondLook;
try {
firstLook =
ProjectManager.getInstance()
.getCurrentScene()
.getSpriteBySpriteName(firstSpriteName)
.look;
secondLook =
ProjectManager.getInstance()
.getCurrentScene()
.getSpriteBySpriteName(secondSpriteName)
.look;
} catch (Resources.NotFoundException exception) {
return 0d;
}
return CollisionDetection.checkCollisionBetweenLooks(firstLook, secondLook);
}
public boolean containsSpriteInCollision(String name) {
boolean contained = false;
if (leftChild != null) {
contained |= leftChild.containsSpriteInCollision(name);
}
if (rightChild != null) {
contained |= rightChild.containsSpriteInCollision(name);
}
if (type == ElementType.COLLISION_FORMULA) {
String collisionTag =
CatroidApplication.getAppContext().getString(R.string.formula_editor_function_collision);
String firstSprite = value.substring(0, value.indexOf(collisionTag) - 1);
String secondSprite =
value.substring(value.indexOf(collisionTag) + collisionTag.length() + 1, value.length());
if (firstSprite.equals(name) || secondSprite.equals(name)) {
contained = true;
}
}
return contained;
}
public void updateCollisionFormula(String oldName, String newName) {
if (leftChild != null) {
leftChild.updateCollisionFormula(oldName, newName);
}
if (rightChild != null) {
rightChild.updateCollisionFormula(oldName, newName);
}
if (type == ElementType.COLLISION_FORMULA && value.contains(oldName)) {
String collisionTag =
CatroidApplication.getAppContext().getString(R.string.formula_editor_function_collision);
String firstSprite = value.substring(0, value.indexOf(collisionTag) - 1);
String secondSprite =
value.substring(value.indexOf(collisionTag) + collisionTag.length() + 1, value.length());
if (firstSprite.equals(oldName)) {
value = newName + " " + collisionTag + " " + secondSprite;
} else if (secondSprite.equals(oldName)) {
value = firstSprite + " " + collisionTag + " " + newName;
}
}
}