notepad.m

#import <Foundation/Foundation.h>
//  ViewController.m
//  Chain Master
//
//  Created by IULIAN MORARI on 1/31/18.
//  Copyright © 2018 Ik Moraru. All rights reserved.
//

#import "ViewController.h"


@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIButton *goButton;

@property (weak, nonatomic) IBOutlet UISegmentedControl *seg1;
@property (weak, nonatomic) IBOutlet UISegmentedControl *seg2;
@property (weak, nonatomic) IBOutlet UISegmentedControl *seg3;


@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self initNetworkCommunication];
}


- (void)initNetworkCommunication {
    CFReadStreamRef readStream;
    CFWriteStreamRef writeStream;
    CFStreamCreatePairWithSocketToHost(NULL, (CFStringRef)@"192.168.0.39", 7777, &readStream, &writeStream);
    _inputStream = (NSInputStream *)CFBridgingRelease(readStream);
    _outputStream = (NSOutputStream *)CFBridgingRelease(writeStream);
    
    [_inputStream setDelegate:self];
    [_outputStream setDelegate:self];
    
    [_inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [_outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    
    [_inputStream open];
    [_outputStream open];
    
}

- (IBAction)ToggleLight:(id)sender {
    
    UISegmentedControl button = ((UISegmentedControl)sender);
    long tag = button.tag;
    NSString *command = @"STOP";
    
    if(button.selectedSegmentIndex == 0) {
        command = (@"UP");
    } else if(button.selectedSegmentIndex == 1) {
        command = (@"STOP");
    } else if(button.selectedSegmentIndex == 2) {
        command = (@"DOWN");
    }
    
    NSString *response  = [NSString stringWithFormat:@"Motor%ld%@", tag , command];
    
    NSData *data = [[NSData alloc] initWithData:[response dataUsingEncoding:NSASCIIStringEncoding]];
    [_outputStream write:[data bytes] maxLength:[data length]];
    
    NSLog(@"%@", response);
}

- (void)sendMovementActionToController:(UISegmentedControl *) segmentedControl {
    UISegmentedControl button = ((UISegmentedControl)segmentedControl);
    long tag = button.tag;
    
    if(button.selectedSegmentIndex == 0) {
        [self writeOutputStreamWithTag:tag command:@"UP"];
    } else if(button.selectedSegmentIndex == 2) {
        [self writeOutputStreamWithTag:tag command:@"DOWN"];
    }
}

- (void)writeOutputStreamWithTag:(NSString *)tag command:(NSString *)command {
    NSString *response  = [NSString stringWithFormat:@"Motor%ld%@", tag , command];
    NSData *data = [[NSData alloc] initWithData:[response dataUsingEncoding:NSASCIIStringEncoding]];
    [_outputStream write:[data bytes] maxLength:[data length]];
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)eventt {
    // TODO we should collect all data from seg controller when the touch was initiated
}

- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [[event allTouches] anyObject];
    CGPoint touchLocation = [touch locationInView:self.view];
    
    if (CGRectContainsPoint(goButton.frame, touchLocation)) {
        //this should be called continously while keeping go button pressed
        NSLog(@" touched");
        [self sendMovementActionToController:seg1];
        [self sendMovementActionToController:seg2];
        [self sendMovementActionToController:seg3];
    }
}

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
    [self writeOutputStreamWithTag:seg1.tag command:@"STOP"];
    [self writeOutputStreamWithTag:seg2.tag command:@"STOP"];
    [self writeOutputStreamWithTag:seg3.tag command:@"STOP"];
}


- (IBAction)goButtonPressed:(id)sender {
    NSLog(@"GO button pressed");
}

@end






//----------------------- OLD WORKING VERSION --------------------------//


//
//  ViewController.m
//  Chain Master
//
//  Created by IULIAN MORARI on 1/31/18.
//  Copyright © 2018 Ik Moraru. All rights reserved.
//

#import "ViewController.h"


@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIButton *goButton;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self initNetworkCommunication];
    
    // Do any additional setup after loading the view, typically from a nib.
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)initNetworkCommunication {
    CFReadStreamRef readStream;
    CFWriteStreamRef writeStream;
    CFStreamCreatePairWithSocketToHost(NULL, (CFStringRef)@"192.168.0.39", 7777, &readStream, &writeStream);
    _inputStream = (NSInputStream *)CFBridgingRelease(readStream);
    _outputStream = (NSOutputStream *)CFBridgingRelease(writeStream);
    
    [_inputStream setDelegate:self];
    [_outputStream setDelegate:self];
    
    [_inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [_outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    
    [_inputStream open];
    [_outputStream open];
    
}

- (IBAction)ToggleLight:(id)sender {
    
    UISegmentedControl *button = ((UISegmentedControl*)sender);
    long tag = button.tag;
    NSString *command = @"STOP";
    
    if(button.selectedSegmentIndex == 0)    {
        command = (@"UP");    }
    else if(button.selectedSegmentIndex == 1)    {
        command = (@"STOP");    }
    else if(button.selectedSegmentIndex == 2)    {
        command = (@"DOWN");    }
    
    NSString *response  = [NSString stringWithFormat:@"Motor%ld%@", tag , command];
    
    NSData *data = [[NSData alloc] initWithData:[response dataUsingEncoding:NSASCIIStringEncoding]];
    [_outputStream write:[data bytes] maxLength:[data length]];
    
    NSLog(@"%@", response);
}

- (IBAction)goButtonPressed:(id)sender {
    NSLog(@"GO button pressed");
}

@end