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    Following a path?

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    • SteveZX81
      SteveZX81 F last edited by

      I actually got it working (but in the most horrendous and cringeworthy way possible) but yours is superb!

      1 Reply Last reply Reply Quote 1
      • M
        Maxwello F last edited by

        Ah, that's fab and even I can see exactly what's going on with that

        1 Reply Last reply Reply Quote 0
        • Martin
          Martin Fuze Team last edited by

          Thats basically a nice implementation of what I was talking to you about earlier. And I swear I had not read that then !

          You can ignore the 45 degree if you want, but why limit yourself? Add more angles!

          1 Reply Last reply Reply Quote 1
          • D
            doumdoum F last edited by

            For a galaxian or galaga like path, you can use SetSpriteRotationSpeed() instead of SetSpriteRotation().
            Simply use small angles between -4.0 and 4.0.
            If you feel adventurous, use Structures or Vectors.

            I didn't see a SetSpriteAcceleration() command in the doc.
            It would be very usefull for smooth movements as in supersprint ...

            1 Reply Last reply Reply Quote 1
            • SteveZX81
              SteveZX81 F last edited by

              A little peek at what I'm doing. I have something following one trace right now.

              xevdev 1 Reply Last reply Reply Quote 2
              • xevdev
                xevdev F @SteveZX81 last edited by

                @SteveZX81
                I can't see it is there a video?

                1 Reply Last reply Reply Quote 0
                • SteveZX81
                  SteveZX81 F last edited by

                  yes its a small 9 second clip. not sure why it's not working for you.

                  1 Reply Last reply Reply Quote 0
                  • xevdev
                    xevdev F last edited by

                    It's on twitter I see it now

                    1 Reply Last reply Reply Quote 0
                    • xevdev
                      xevdev F last edited by

                      I should say I can't see it here though

                      1 Reply Last reply Reply Quote 0
                      • xevdev
                        xevdev F last edited by

                        Yep I can see it thanks
                        I once used a string to do a galaga type game for the aliens
                        "llrrffss etc
                        Each letter was
                        L = turn left 5 deg
                        R = turn right 5 deg
                        F = go straight
                        S = anything you want as in any letter could have a response _ fire or change response
                        So like above just scrolled through the string and adjusted the sprite accordingly
                        In your case as your only following a predefined path probably could reverse it to draw path that you are following.
                        Using 90 deg but
                        I found it was faster to type into a string than put in numbers and play animation

                        1 Reply Last reply Reply Quote 1
                        • D
                          doumdoum F last edited by

                          Yes, it's tedious to type numbers.
                          Here's what you can do with only 6 numbers in arrays :
                          FuzePathScreenShot.jpg
                          And the code :
                          FuzePathCode1.jpg
                          FuzePathCode2.jpg

                          1 Reply Last reply Reply Quote 3
                          • M
                            MikeDX last edited by

                            If you share that project I will paste the code in here as text for you :)

                            1 Reply Last reply Reply Quote 0
                            • D
                              doumdoum F last edited by

                              Just shared it.

                              1 Reply Last reply Reply Quote 2
                              • SteveZX81
                                SteveZX81 F last edited by

                                That's really helpful, thank you so much doumdoum!

                                1 Reply Last reply Reply Quote 0
                                • M
                                  MikeDX last edited by

                                  A more copy paste friendly version for you:

                                  // Simple path with arrays in Fuze for Nintendo Switch
                                  // by doumdoum
                                  radians( 0 )  
                                  image = loadImage( "Untied Games/Enemy small top C", false )
                                  ship = createSprite()
                                  SetSpriteImage( ship, image )
                                  SetSpriteLocation( ship, -64, 170 )
                                  SetSpriteScale( ship, 1, 1 )
                                  SetSpriteRotation( ship, 1 )
                                  
                                  // 3 arrays to store your path
                                  speeds = [  400, 400 ]  // Speed of Movements
                                  turns  = [ -4.0,-0.5 ]  // Angles variations in degrees
                                  rpeats = [   90,  45 ]  // Iterations
                                  
                                  completedPaths = 0 // nb of completed paths   
                                  index   = -1       // Index in arrays
                                  counter =  0       // iterations to do for each movement
                                  currentAngle = 70 
                                  
                                  ResetPath()
                                  UpdatePath()
                                  
                                  Loop
                                  	// comment these next 4 lines to keep the path  
                                      Clear()
                                  	PrintAt( 1, 1, "counter    " ,counter )
                                  	PrintAt( 1, 2, "compleded  " , completedPaths )
                                  	PrintAt( 1, 3, "Move index ", index, "  angle ", currentAngle )
                                  	PrintAt( 1, 4, "Speed      ", speeds[index], "  Sprite rotation ", GetSpriteRotation( ship ) )
                                  	
                                  	UpdatePath()
                                  	UpdateSprites()
                                      DrawSprites()
                                      Update()
                                  Repeat
                                  
                                  
                                  Function ResetPath()
                                  // call this function when launching a ship
                                  	completedPaths = 0  // nb of completed paths   	
                                  	index          = -1 // Index in arrays
                                  	counter        =  0 // iterations to do for each movement
                                  	currentAngle   = 70 
                                  	SetSpriteLocation( ship, -32, 170 )
                                  	SetSpriteScale( ship, 1, 1 )
                                  	SetSpriteRotation( ship, 1 )
                                  	SetSpriteRotation( ship, currentAngle )
                                  Return Void  
                                  
                                  
                                  Function UpdatePath()
                                  // call this function every frame
                                  	counter -= 1
                                  	If counter<=0 Then
                                  		index += 1          // next movement
                                  		If index>len(speeds)-1 Then 
                                  			index = 0
                                  			completedPaths += 1 // count the paths completed or initied
                                  		Endif  
                                  		counter = rpeats[index]		
                                  	Endif
                                  
                                  	//currentAngle = currentAngle + turns[index]
                                  	currentAngle = Cycle( currentAngle, 0.0, 360.0, turns[index] )
                                  
                                  	SetSpriteRotation( ship, currentAngle-90 ) // -90 to correct sprite design 
                                  	dx = cos( currentAngle ) * speeds[index] 
                                  	dy = sin( currentAngle ) * speeds[index]
                                  	SetSpriteSpeed( ship, dx, dy )	
                                  
                                  	If completedPaths>=6 Then
                                  		// reset sprite position and path
                                  		ResetPath()
                                  	Endif 
                                  
                                  Return Void
                                  
                                  
                                  Function Cycle( lvalue, lstart, lend, lstep )
                                  // Cycle a value between lstart and lend, by adding lstep 
                                  	lvalue += lstep
                                  	If lvalue>=lend Then
                                  		lvalue = lvalue - (lend - lstart)
                                  	Else
                                  		If lvalue<=lstart Then		 
                                  			lvalue = lvalue + (lend - lstart)
                                  		Endif
                                  	Endif	
                                  Return lvalue 
                                  
                                  
                                  
                                  1 Reply Last reply Reply Quote 2
                                  • SteveZX81
                                    SteveZX81 F last edited by

                                    Thanks for all the help guys! I now have my shots (just one currently) following the traces just fine!

                                    1 Reply Last reply Reply Quote 0
                                    • SteveZX81
                                      SteveZX81 F last edited by

                                      Sorry but my brain is not firing on all cylinders today and I'm struggling to change the code from a single path (one shot fired) to multiple ones at the same time (several shots fired)

                                      Here is the code for the single one and it works perfectly
                                      one.png

                                      This is my last effort at doing multiple ones via a loop
                                      multi.png
                                      Which does not work at all, everything goes crazy.

                                      I'm obviously missing something here, if someone could give me a hint it would be great. thanks!

                                      1 Reply Last reply Reply Quote 0
                                      • pianofire
                                        pianofire Fuze Team last edited by

                                        It is difficult to say without seeing more of the code and knowing what the intention was e.g what are the initial values of index and counter?

                                        Just a minor observation but the array is called rpeats and not repeats is it?

                                        1 Reply Last reply Reply Quote 1
                                        • Jaywalker
                                          Jaywalker Donator last edited by

                                          Just make sure, that your values will take over into the next shot, when you set them, so for example stop will always be true once it was true for the first time in your loop

                                          1 Reply Last reply Reply Quote 1
                                          • pianofire
                                            pianofire Fuze Team last edited by

                                            @SteveZX81 share your code Steve and I will take a look

                                            1 Reply Last reply Reply Quote 0
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