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    Following a path?

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    • 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
                                      • SteveZX81
                                        SteveZX81 F last edited by

                                        @pianofire okay its shared (named chip) as the code stands it shoots single shots which work fine
                                        dpad to change selection and press 'Y' to shoot.

                                        of course when there is one shot on the move and you press fire, that shot vanishes and your new one replaces it. that's why I wanted to add more (up to say 20)

                                        There is no need to fix this but if you wish to look at the code as it is, its there.

                                        pianofire 1 Reply Last reply Reply Quote 1
                                        • pianofire
                                          pianofire Fuze Team @SteveZX81 last edited by

                                          @SteveZX81 Hi Steve, so I haven't got to the bottom of this yet but one observation is that in the traceshoot function you are only ever setting the location of the pshot sprite (not the ones stored in the shots array) so they will always be starting from -100, 0. I guess that you probably need a shot counter that gets passed into here?

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

                                            in that version of the code yes. in all the attempts I've made to make multiple shots, I have changed all the pshot entries to shots[shotcnt]. but alas no joy.
                                            don't worry about it, it was just a silly game idea anyway ;)

                                            pianofire 1 Reply Last reply Reply Quote 0
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