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joeschmoe
joeschmoe wrote ...

2013/8/8

Control the speed of the game? help?

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joeschmoe joeschmoe

2013/8/8

#
Hi, I want to make it so when my object eats potatoes the game goes into slow motion for 5 seconds. I have a method for eating the potato by I don't know if there is a way to control the game speed. I looked in the API and didnt see anything but I might have missed it.
?
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public void Eat(){
    Actor actor = getOneIntersectingObject(Potato.class);
       if(actor != null)
           {
           // When a potato is caught, remove potato, and make slow motion?
           getWorld().removeObject(actor);
            }
What should I add?
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

#
Scratch that.
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

#
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public void Eat(){ 
    int i;
    boolean slow;
    Actor actor = getOneIntersectingObject(Potato.class); 
       if(actor != null) 
           { 
           slow=true; 
           i=1;
           getWorld().removeObject(actor); 
           return;
            } 
       if(slow==true)
            i++;
       if(i<5000){
            Greenfoot.setSpeed(25); //adjust to your liking
}
       else if(i>5000){
             Greenfoot.setSpeed(50);
             slow=false;
}
Might work, sorry if it doesn't; I'm still a newbie.
joeschmoe joeschmoe

2013/8/8

#
Wow, looks pretty good. the part with "if(slow==true) " is giving me the error "the variable slow might not have been initialized. It won't compile. That means I have to have "slow == false " at the beginning or something right?
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

#
Hmm, I'm not at a machine at the moment, but you wouldn't put "slow == false", that's only if your using it in a statement like if, for, while, etc... Basically, 1x= is when you are setting the value, and 2x= is when you are checking the value. I think you should initilize it as '"boolean slow=false;', but that might not work. Tell me what happens!
joeschmoe joeschmoe

2013/8/8

#
I did this and it compiled by didnt slow the game. maybe I have to change the setSpeed number?
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public void Eat(){   
              int i; 
              boolean slow;
              Actor actor = getOneIntersectingObject(Potato.class);   
                    if(actor != null)   
                   {   
                       slow=true;   
                        i=1; 
                       getWorld().removeObject(actor);   
                         return; 
                    }  
                  else{     slow=false;
                            i=2;
                        }
            
                    if(slow==true) 
                          i--; 
        
        
                    if(i<2){ 
                       Greenfoot.setSpeed(25); //adjust to your liking 
                            } 
                           else if(i>2){ 
                              Greenfoot.setSpeed(50); 
                                slow=false; 
               } 
         }
joeschmoe joeschmoe

2013/8/8

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hmm need some equal signs
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

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Keep the values I gave you, and then compile. Try this code.
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public void Eat(){     
              int i;   
              boolean slow=false; 
              Actor actor = getOneIntersectingObject(Potato.class);     
                    if(actor != null)     
                   {     
                       slow=true;     
                        i=1;   
                       getWorld().removeObject(actor);     
                         return;   
                    }                               
              
                    if(slow==true)   
                          i++;           
          
                    if(i<5000){   
                       Greenfoot.setSpeed(25); //adjust to your liking   
                     }   
                     else if(i>5000){   
                         Greenfoot.setSpeed(50);   
                          slow=false;   
               }   
         }
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

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Tell me what happens.
joeschmoe joeschmoe

2013/8/8

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variable i not initialized
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

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Ok, try this:
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public boolean slow=false;
public void Eat(){   
    int i;  
    Actor actor = getOneIntersectingObject(Potato.class);   
       if(actor != null)   
           {   
           slow=true;   
           i=1; 
           getWorld().removeObject(actor);   
           }   
       if(slow==true) 
            i++; 
       if(i<5000){ 
            Greenfoot.setSpeed(25); //adjust to your liking 
       } 
       else if(i>5000){ 
            Greenfoot.setSpeed(50); 
            slow=false; 
}
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

#
Does it work?
joeschmoe joeschmoe

2013/8/8

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same error. I did this and it compiled. It doesnt let you slide the speed bar if you havent caught a potato in a while but if you have you can slide it. It goes back after a few Acts though. public boolean slow; public void Eat(){ int i; Actor actor = getOneIntersectingObject(Potato.class); if(actor != null) { slow=true; i=1; getWorld().removeObject(actor); return; } else{i=5000;} if(slow==true) i++; if(i<5000){ Greenfoot.setSpeed(25); //adjust to your liking } else if(i>5000){ Greenfoot.setSpeed(50); slow=false; } }
8bitcarrotjuice 8bitcarrotjuice

2013/8/8

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So can you compile it? Does it work? Please explain to me what the problen is! Does it go into slow motion?
joeschmoe joeschmoe

2013/8/8

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No slow motion, I uploaded the game. kinda hard to explain. http://www.greenfoot.org/scenarios/9170
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