The code below is my method for what happens if the actor collides with the player. It should ask a question using Greenfoot.ask() and the user will return an answer. if that answer is correct it should +=1 to my score counter in the world. the problem is that the if statement does not accept the user input as correct. I think this is due to formatting in greenfoots.ask() but im not sure how to remove that in java.
Another problem is that im trying to generate the question from a random number which is used as an index to get the question from the array. However Greenfoot.getRandomNumber() has no way of specifying a range like x-y where x != 0.
summary
need to fix a problem where the if statement at line 29 does not see user input as == to the condition
need to specify a random number to get an array index generated in a range such as 10-19 or 20-29
i know i can do it if i use more arrays so if i had lvlxquestions and lvlxanswers. but i'd need six arrays. also i find this a more interesting way to do it :)
private void collideWithPlayer()
{
Actor playerOBJ = getOneIntersectingObject(player.class);
//send question
if(playerOBJ != null)
{
/*ask question if correct +1 to score if not do nothing
* then remove object and +1 to questionsRemoved variable
* once that is equal to a multiple of 10 increase lvl*/
switch(player.hints){
case 0:
switch(GameWorld.lvlCounter.getValue()){
case 1:
//get 0-9 value in the array if lvl 1
questionNum = Greenfoot.getRandomNumber(10);
break;
case 2:
//get 10-19 value in the array if lvl 2
questionNum = Greenfoot.getRandomNumber(10, 20);
break;
case 3:
//get 20-29 if lvl 3
questionNum = Greenfoot.getRandomNumber(20, 30);
break;
}
//ask the questionNum and display the answer for debugging purposes
answer = Greenfoot.ask(questions[questionNum] + " " + answers[questionNum]);
//this if statement doesnt work even tho when the the input is the same as answers[questionNum]
if(answer == answers[questionNum]){
GameWorld.score += 1;
}
break;
default:
//player has hints, so -1 hint and +1 score
player.hints -= 1;
GameWorld.score += 1;
break;
}
//remove object
World w = getWorld();
GameWorld.questionsRemoved += 1;
w.removeObject(this);
}
}/*here are the arrays these are just placeholder at the moment but i hope the purpose of this is clear*/
private String questions[] = {"l1", "l1","l1", "l1","l1", "l1","l1", "l1","l1", "l1",
"l2", "l2", "l2", "l2", "l2", "l2", "l2", "l2", "l2", "l2",
"l3", "l3", "l3", "l3", "l3", "l3", "l3", "l3", "l3", "l3",};
private String answers[] = {"a1", "a1", "a1", "a1", "a1", "a1", "a1", "a1", "a1", "a1",
"a2", "a2", "a2", "a2", "a2", "a2", "a2", "a2", "a2", "a2",
"a3", "a3", "a3", "a3", "a3", "a3", "a3", "a3", "a3", "a3",}; 