Hi - I really really need any help you can throw my way.
Essentially this game will allow two characters to fight each other.
The problem is that the actual game on the device is considerably slower. Well that is to be expected but we are talking very slow here. I am developing this as a universal app however below is the info for the iPad version.
On the XIB there are two UIImageViews (one for hero and one for villain). The user can press buttons or pan the screen to invoke an action. The function below will take whatever the current move is along with its current position within that move and replace the current image in the UIImageView with the next one.
Some of the things I have done to help performance (i.e. in calling the function pasted below) are:
1) Place some of the images in an NSMutableArray so that they would load quicker. However I cannot do that for all moves (ideal when I did) as I swiftly get a memory issue
2) Stopped using ImagedNamed
3) I did try NSTimer - ran into problems as the function below got fired erratically and at times very slowly
4) I tried CADisplayLink - despite everyone on the internet stating its the best thing ever, it reduced the performance considerably.
5) Just for laughs I did the following and left it there:
[self.view setNeedsDisplay];
and
[[UIAccelerometer sharedAccelerometer] setUpdateInterval:0]; [[UIAccelerometer sharedAccelerometer] setDelegate:self];
6) I do have a 1024x748 background image which scrolled - i disabled this and noticed a big difference.
7) The actual images are PNGs which I have reduced in file size ranging from 12KB to 40KB. I would say the average is 18KB. The canvas size is 308x296 for the images.
Code:
//This is the function which keeps getting called - it gets the hero & villains next image/move set and also cheks for collision
-(void) skynet_main {
//1) TIMER
if(canItimer==0){
secx++;
if(secx==20){
secx=0;
timercount--;
timerx.text = [NSString stringWithFormat:@"%i",timercount];
if(timercount==0){
[self GameOver];
}
}
}
//Hero - change his image
jcount++;
if(jcount==(no_moves_char[char_chosen-1][currentmove1-1])){ // is he at the end (move) of his current form
//is it forward or backward?
if(currentmove1==9 || currentmove1==10){
jcount=0;
} else {
//
//reached the end of the current seq then time to get a new currentmove
[self whatsnextmove:1];
}
} else { // else he still has some moves left in his current form
if(currentmove1>2 && currentmove1<5 && jcount<(no_moves_char[char_chosen-1][currentmove1-1])){
//For certain moves we have put the images in an array so that they load faster. We cannot fo this for all moves as we run into memory issues.
[fish1 setImage:[dict_cachemoves1 objectForKey:[NSString stringWithFormat:@"%d%@%d",currentmove1, @"_",jcount]]];
} else {
//We set the image from file for the rest of the moves
NSString *imageName, *xx2;
if(jcount<10){
xx2 = [NSString stringWithFormat:@"%@%d%@%d%@%d",@"fish_",char_chosen,@"_", currentmove1, @"_000", jcount];
} else if(jcount<100) {
xx2 = [NSString stringWithFormat:@"%@%d%@%d%@%d",@"fish_",char_chosen,@"_", currentmove1, @"_00", jcount];
} else {
xx2 = [NSString stringWithFormat:@"%@%d%@%d%@%d",@"fish_",char_chosen,@"_", currentmove1, @"_0", jcount];
}
imageName = [[NSBundle mainBundle] pathForResource:xx2 ofType:@"png"];
UIImage *image = [[UIImage imageWithContentsOfFile:imageName] retain];
if(image){
[fish1 setImage:image];
}
[image release]; image=nil;
}
//was it a special move? - then move forward and then back
if(currentmove1==5){
if(jcount<(no_moves_char[char_chosen-1][currentmove1-1]/2)){
//move forward
if(jcount==1){
float difference = fish2.center.x - fish1.center.x;
if(difference<100){
fish1.center = CGPointMake(fish2.center.x-100, fish1.center.y);
}
}
fish1.center = CGPointMake(fish1.center.x+specialmoveNO, fish1.center.y);
}else {
//move back
fish1.center = CGPointMake(fish1.center.x-specialmoveNO, fish1.center.y);
}
}
//END SPECIAL MOVE
//were you inhured? if so then move back
if(currentmove1>6 && currentmove1<9 && fish1.center.x >-10){
fish1.center = CGPointMake(fish1.center.x-2, fish1.center.y);
}
}
// Should we move the background and/or hero?
if(bg_pressed==-1){ // LEFT PRESSED
if(bg_counter>1){
bg_counter--;
//[self chgbg]; <- I disabled this as when I did it greatly improved the performance.
}
//move hero?
// float difference = fish2.bounds.origin.x - fish1.bounds.origin.x;
if(fish1.center.x>-40){
fish1.center = CGPointMake(fish1.center.x-40, fish1.center.y);
}
} else if(bg_pressed==1){ // RIGHT PRESSED
if(bg_counter<50){
bg_counter++;
[self chgbg];
}
//move hero?
float difference = fish2.center.x - fish1.center.x;
if(difference>190){
fish1.center = CGPointMake(fish1.center.x+40, fish1.center.y);
} else {
fish1.center = CGPointMake(fish2.center.x-190, fish1.center.y);
}
}
//LETS DO THE SAME FOR Villain
jcount2++;
if(jcount2==(no_moves_char[fish2_char_selected-1][currentmove2-1]/1)){
//is it forward or backward?
if(currentmove2==9 || currentmove2==10){
jcount2=0;
} else {
//
//reached the end of the current sew=q
[self whatsnextmove:2];
}
} else {
NSString *imageName;
if(jcount2<10){
NSString *xx2 = [NSString stringWithFormat:@"%@%d%@%d%@%d",@"fish_",fish2_char_selected,@"_", currentmove2, @"_000", jcount2];
imageName = [[NSBundle mainBundle] pathForResource:xx2 ofType:@"png"];
} else if(jcount2<100) {
NSString *xx2 = [NSString stringWithFormat:@"%@%d%@%d%@%d",@"fish_",fish2_char_selected,@"_", currentmove2, @"_00", jcount2];
imageName = [[NSBundle mainBundle] pathForResource:xx2 ofType:@"png"];
} else {
NSString *xx2 = [NSString stringWithFormat:@"%@%d%@%d%@%d",@"fish_",fish2_char_selected,@"_", currentmove2, @"_0", jcount2];
imageName = [[NSBundle mainBundle] pathForResource:xx2 ofType:@"png"];
}
UIImage *image = [[UIImage imageWithContentsOfFile:imageName] retain];
if(image){
[fish2 setImage:image];
}
[image release]; image=nil;
//was it a special move?
if(currentmove2==5){
if(jcount2<(no_moves_char[fish2_char_selected-1][currentmove2-1]/2)){
//move forward
if(jcount2==1){
float difference = fish2.center.x - fish1.center.x;
if(difference<100){
fish2.center = CGPointMake(fish2.center.x+100, fish2.center.y);
}
}
fish2.center = CGPointMake(fish2.center.x-specialmoveNO, fish2.center.y);
}else {
//move back
fish2.center = CGPointMake(fish2.center.x+specialmoveNO, fish2.center.y);
}
}
//END SPECIAL MOVE
//was it a hit 1 or 2 if so then move back
if(currentmove2>6 && currentmove2<9 && fish2.center.x < self.view.bounds.size.width-50){
fish2.center = CGPointMake(fish2.center.x+2, fish2.center.y);
}
// }
}
//Lets wrap this up:
//1) //HIT COLLISION!! - send to collision detection
[self collision_check:1];
//2) Check the health bars
[self setbars];
//3) Call this function again
if(canIcontinue==0){
switch(currentmove1){
case 1:
{
[self performSelector:@selector(skynet_main) withObject:nil afterDelay:0.001];
break;
}
case 11:
{
[self performSelector:@selector(skynet_main) withObject:nil afterDelay:0.003];
break;
}
case 12:
{
[self performSelector:@selector(skynet_main) withObject:nil afterDelay:0.001];
break;
}
default:
{
[self performSelector:@selector(skynet_main) withObject:nil afterDelay:0.005];
break;
}
}
} //*/
}
I would appreciate any help you can throw my way.
Help needed to squeeze more performance in iPad app
Linear Mode
