Objective-c Making levels for an iPhone game

Question

I have a question game in which I ask the user some questions and depending on how fast the user answers correctly and what level the user is in I want the user to get different amounts of xp/ progress for the progress view that I have.

So I have a global variable called 'levelInt' which holds the value of what level the user is in (max level is 20). I also have a label that prints the the 'levelInt' variable and a progress view that shows your progress for getting into higher level/shows progress for your current level. I also have a timer which counts down from 2 minutes and depending on how fast you answer this question you get more xp/more progress for the progress view. I set it up like this:

totalSeconds is the timer
levelInt is the global variable that hold the value of the level the user is in
progressView is the progress bar the show the remaining xp until next level

and the code:

if ( levelInt == 0 && totalSeconds > 100){
    progressView.progress = .60;
}else if ( levelInt == 0 && totalSeconds <= 100 ){
    progressView.progress = .40;
}else if ( levelInt == 0 && totalSeconds > 80 ){
    progressView.progress = .20;
}else if ( levelInt == 0 && totalSeconds <= 80 ) {
    progressView.progress = .10;
}else {
    progressView.progress = .05;
}

if ( levelInt == 1 && totalSeconds > 100){
    progressView.progress = .55;
}else if ( levelInt == 1 && totalSeconds <= 100 ){
    progressView.progress = .35;
}else if ( levelInt == 1 && totalSeconds > 80 ){
    progressView.progress = .15;
}else if ( levelInt == 1 && totalSeconds <= 80 ) {
    progressView.progress = .05;
}else {
    progressView.progress = .02;
}

if ( levelInt == 2 && totalSeconds > 100){
    progressView.progress = .50;
}else if ( levelInt == 2 && totalSeconds <= 100 ){
    progressView.progress = .30;
}else if ( levelInt == 2 && totalSeconds > 80 ){
    progressView.progress = .10;
}else if ( levelInt == 2 && totalSeconds <= 80 ) {
    progressView.progress = .05;
}else {
    progressView.progress = .02;
}

if ( levelInt == 3 && totalSeconds > 100){
    progressView.progress = .45;
}else if ( levelInt == 3 && totalSeconds <= 100 ){
    progressView.progress = .25;
}else if ( levelInt == 3 && totalSeconds > 80 ){
    progressView.progress = .05;
}else if ( levelInt == 3 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 4 && totalSeconds > 100){
    progressView.progress = .40;
}else if ( levelInt == 4 && totalSeconds <= 100 ){
    progressView.progress = .20;
}else if ( levelInt == 4 && totalSeconds > 80 ){
    progressView.progress = .05;
}else if ( levelInt == 4 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 5 && totalSeconds > 100){
    progressView.progress = .35;
}else if ( levelInt == 5 && totalSeconds <= 100 ){
    progressView.progress = .15;
}else if ( levelInt == 5 && totalSeconds > 80 ){
    progressView.progress = .05;
}else if ( levelInt == 5 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 6 && totalSeconds > 100){
    progressView.progress = .30;
}else if ( levelInt == 6 && totalSeconds <= 100 ){
    progressView.progress = .10;
}else if ( levelInt == 6 && totalSeconds > 80 ){
    progressView.progress = .05;
}else if ( levelInt == 6 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 7 && totalSeconds > 100){
    progressView.progress = .28;
}else if ( levelInt == 7 && totalSeconds <= 100 ){
    progressView.progress = .08;
}else if ( levelInt == 7 && totalSeconds > 80 ){
    progressView.progress = .04;
}else if ( levelInt == 7 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 8 && totalSeconds > 100){
    progressView.progress = .26;
}else if ( levelInt == 8 && totalSeconds <= 100 ){
    progressView.progress = .07;
}else if ( levelInt == 8 && totalSeconds > 80 ){
    progressView.progress = .05;
}else if ( levelInt == 8 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 9 && totalSeconds > 100){
    progressView.progress = .24;
}else if ( levelInt == 9 && totalSeconds <= 100 ){
    progressView.progress = .05;
}else if ( levelInt == 9 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 9 && totalSeconds <= 80 ) {
    progressView.progress = .02;
}else {
    progressView.progress = .02;
}

if ( levelInt == 10 && totalSeconds > 100){
    progressView.progress = .22;
}else if ( levelInt == 10 && totalSeconds <= 100 ){
    progressView.progress = .04;
}else if ( levelInt == 10 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 10 && totalSeconds <= 80 ) {
    progressView.progress = .02;
}else {
    progressView.progress = .02;
}

if ( levelInt == 11 && totalSeconds > 100){
    progressView.progress = .20;
}else if ( levelInt == 11 && totalSeconds <= 100 ){
    progressView.progress = .04;
}else if ( levelInt == 11 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 11 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 12 && totalSeconds > 100){
    progressView.progress = .18;
}else if ( levelInt == 12 && totalSeconds <= 100 ){
    progressView.progress = .04;
}else if ( levelInt == 12 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 12 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 13 && totalSeconds > 100){
    progressView.progress = .16;
}else if ( levelInt == 13 && totalSeconds <= 100 ){
    progressView.progress = .04;
}else if ( levelInt == 13 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 13 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 14 && totalSeconds > 100){
    progressView.progress = .14;
}else if ( levelInt == 14 && totalSeconds <= 100 ){
    progressView.progress = .04;
}else if ( levelInt == 14 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 14 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 15 && totalSeconds > 100){
    progressView.progress = .12;
}else if ( levelInt == 15 && totalSeconds <= 100 ){
    progressView.progress = .03;
}else if ( levelInt == 15 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 15 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 16 && totalSeconds > 100){
    progressView.progress = .10;
}else if ( levelInt == 16 && totalSeconds <= 100 ){
    progressView.progress = .03;
}else if ( levelInt == 16 && totalSeconds > 80 ){
    progressView.progress = .03;
}else if ( levelInt == 16 && totalSeconds <= 80 ) {
    progressView.progress = .03;
}else {
    progressView.progress = .02;
}

if ( levelInt == 17 && totalSeconds > 100){
    progressView.progress = .08;
}else if ( levelInt == 17 && totalSeconds <= 100 ){
    progressView.progress = .02;
}else if ( levelInt == 17 && totalSeconds > 80 ){
    progressView.progress = .02;
}else if ( levelInt == 17 && totalSeconds <= 80 ) {
    progressView.progress = .02;
}else {
    progressView.progress = .02;
}

if ( levelInt == 18 && totalSeconds > 100){
    progressView.progress = .06;
}else if ( levelInt == 18 && totalSeconds <= 100 ){
    progressView.progress = .02;
}else if ( levelInt == 18 && totalSeconds > 80 ){
    progressView.progress = .02;
}else if ( levelInt == 18 && totalSeconds <= 80 ) {
    progressView.progress = .02;
}else {
    progressView.progress = .02;
}

if ( levelInt == 19 && totalSeconds > 100){
    progressView.progress = .04;
}else if ( levelInt == 19 && totalSeconds <= 100 ){
    progressView.progress = .02;
}else if ( levelInt == 19 && totalSeconds > 80 ){
    progressView.progress = .02;
}else if ( levelInt == 19 && totalSeconds <= 80 ) {
    progressView.progress = .02;
}else {
    progressView.progress = .02;
}

if ( levelInt ==20 && totalSeconds > 100){
    progressView.progress = .04;
}else if ( levelInt == 20 && totalSeconds <= 100 ){
    progressView.progress = .02;
}else if ( levelInt == 20 && totalSeconds > 80 ){
    progressView.progress = .02;
}else if ( levelInt == 20 && totalSeconds <= 80 ) {
    progressView.progress = .02;
}else {
    progressView.progress = .02;
}

The problem is that whenever I answer correctly fast then the 20 seconds, the progress view only adds about .10. Should I do progressView.progress = progressView.progress + (amount)?

strange, your code go only into the <=100 and >100 cases, never into the 80' . — divol, Jul 21 '12 at 16:31

score 2 · Accepted Answer · answered Jul 21 '12 at 20:55

The first or the second statement will always validates true,
therefor the last three if statements will never be validated.
Numbers cannot validate false to both <= 100 and > 100.
Numbers validating false to > 100 are always <= 100.

if ( i > 100 ) 
{
    // All numbers above 100 
} 
else if ( i <= 100 ) 
{
    // All numbers lower than or equal to 100
} 
else if ( i > 80 ) 
{
    // Never reached
} 
else if ( i <= 80 ) 
{
    // Never reached
} 
else 
{
    // Never reached
}

score 0 · Answer 2 · answered Jul 22 '12 at 09:05

2 better ways to do the job :

1 : create a function (linear ?) to compute your progress.

float progress (int level , int seconds);

2 : use an array (your read from a file for better use)

//float values [levels][cases];

//float values [21][3]; 

static init
float values[0] = {.10,.20,.60};
float values[1] = ....

int acase ;
if (totalSeconds <= 80){
acase=0;

    }else{
    // your are > 80 here
    if (totalSeconds <= 100){
        acase=1;
    }else{
        // your are > 100 here
         acase=2;
    }
}

progressView.progress = values[levelInt,acase];

and it's done (more shorter i think)

you can of course add cases (here 3)

Objective-c Making levels for an iPhone game

2 Answers2