Extended "DoJump" Lua for characters

[SpiderMack]

Lua DoJump for character is awesome and works as intended.
But i need a custom DoJump , need to be able to call it in the air one more time (Double Jump) or call it with custom events ( collision with special wall to do wall jumps).

[SolarPortal]

Both the character and controller lua libraries have a "setMoveAdvanced(id, 1 or 0)" function which allows you to override the basic move command and instead use the setMoveDirection( eID, x, y, z ) command to issue your own Vector3 direction to move your character however you want.

Cancel the advanced move out by sending 0 into the setMoveAdvanced() to disable the direction control and allow the move to work again.

http://www.chi-ad.com/Skyline/API/Lua/h ... ef112df4e8

Note: After calling setMoveAdvanced and setMoveDirection(), you may need to call move() to issue the calls to the character controllers. these 3 functions will allow you to move and control your character however you see fit

Hope this helps

Other useful functions for controlling and editing direction are.

• entity.getForward(eID)
• entity.getUp(eID)
• entity.getRight(eID)

[SpiderMack]

Hope a tutorial will get.

[SolarPortal]

I know SpiderMack is no longer available, but i wanted to finish this topic with a working script on Gen2 that gives a TP character that uses the setMoveAdvanced function for extending jump. It isn't double jump but single and it will show the basics of coding your own character.

Code: Select all

obj = 0;
walkSpeed = 15;
runSpeed = 45;
jumpAmt = 0.2;
turnSpeed = 150;

idleanim = "";
walkanim = "";
runanim = "";
jumpanim = "";
fallanim = "";

forwardKeyDown = false;
backKeyDown = false;
leftKeyDown = false;
rightKeyDown = false;
shiftKeyDown = false;
spaceKeyDown = false;

isJumping = false;

lastPos = newType.vec3(0,0,0);
currentDirection = newType.vec3(0,0,0);

current_state = 0;

-- System initialisation - Skyline script entry point
function onInit(objID) obj = objID; end

-- Called after all the scenes onInit() have been called.If you need to ensure your data exits, then do you set up here
function postInit()
   idleanim = anim.getFromMap(obj, "Idle1");
   walkanim = anim.getFromMap(obj, "Walk");
   runanim = anim.getFromMap(obj, "Run");
   jumpanim = anim.getFromMap(obj, "Jump");
   fallanim = anim.getFromMap(obj, "Animal_Feed1"); -- Animal_Feed1 is now mapped for the fall as it wont be used.

   anim.playAnimation(obj, idleanim, 0, 0);
end

-- Updated every frame
function onUpdate(timeDelta)
   -- Do the forwards backwards physics.
   if(isJumping == false)then
      if(forwardKeyDown == true and shiftKeyDown == false)then
         walk(1);
      elseif(forwardKeyDown == true and shiftKeyDown == true)then
         run(1);
      elseif(backKeyDown == true and shiftKeyDown == false)then
         walk(-1);
      elseif(backKeyDown == true and shiftKeyDown == true)then
         run(-1);
      else
         idle();
      end
      
      if(spaceKeyDown == true)then
         startJump(timeDelta);
      end
   else
      doJump();
   end
   
   -- Do the entity turn using the entity.turn function
   if(leftKeyDown == true)then   turn(-1, timeDelta); end
   if(rightKeyDown == true)then turn(1, timeDelta); end

   x,y,z = entity.getPosition(obj);
   lastPos.x = x;
   lastPos.y = y;
   lastPos.z = z;
end


function idle()
   character.move(obj, 0 );
   anim.playAnimation(obj, idleanim,30, 1);
   current_state = 0;
end

function walk(direction)
   character.move(obj, walkSpeed*direction );
   if(direction ==1 )then   anim.setSpeed(obj, walkanim, 1); elseif(direction ==-1 )then anim.setSpeed(obj, walkanim, -1); end
   anim.playAnimation(obj, walkanim, 30, 1);
   current_state = 1;
end

function run(direction)
   character.move(obj, runSpeed*direction );
   if(direction ==1 )then   anim.setSpeed(obj, runanim, 1); elseif(direction ==-1 )then anim.setSpeed(obj, runanim, -1); end
   anim.playAnimation(obj, runanim, 30, 1);
   current_state = 2;
end


function turn( direction, timeDelta )
   if(direction == -1)then
      entity.turn(obj, 0, turnSpeed*timeDelta, 0)
   elseif(direction == 1)then
      entity.turn(obj, 0, -turnSpeed*timeDelta, 0)   
   end
end

function startJump(timeDelta)
   entityPos = newType.vec3(entity.getPosition(obj));

   -- Work out the direction to jump
   currentDirection.x = entityPos.x - lastPos.x;
   currentDirection.y = entityPos.y - lastPos.y;
   currentDirection.z = entityPos.z - lastPos.z;
   
   currentDirection = newType.vec3(vector3.normalisedCopy(currentDirection.x, currentDirection.y, currentDirection.z));
   currentDirection.x = currentDirection.x;
   currentDirection.y = currentDirection.y;
   currentDirection.z = currentDirection.z;

   dirMulti = timeDelta;
   if(current_state == 1)then
      dirMulti = dirMulti * walkSpeed
   elseif(current_state == 2)then
      dirMulti = dirMulti * runSpeed
   end
   
   jump_td = timeDelta * 5.0;
   
   character.setMoveAdvanced(obj, 1 );
   character.setMoveDirection(obj, currentDirection.x*dirMulti, currentDirection.y*dirMulti+jump_td, currentDirection.z*dirMulti);
   character.move(obj, 1 );
   
   anim.playAnimation(obj, jumpanim, 50, 1);
   isJumping = true;
   
   --The timer will last for the length of part of the animation.
   time.startTimer(1, obj, 700); -- ADJUST TO MATCH YOUR JUMP ANIM LENGTH or shorter if it has a duff animation.
end

function doJump()
   character.move(obj, 1 );
   anim.playAnimation(obj, jumpanim, 50, 1);
end

function finishJump()
   character.setMoveAdvanced(obj, 0 );
   isJumping = false;
end

function onTimer()
   finishJump();
   time.stopTimer(1, obj);
end

function onKeyDown(key)
   if(key == "w")then forwardKeyDown = true; end
   if(key == "s")then backKeyDown = true; end
   if(key == "a")then leftKeyDown = true; end
   if(key == "d")then rightKeyDown = true; end
   
   if(key == "space")then spaceKeyDown = true; end
   if(key == "shift")then shiftKeyDown = true; end
end

function onKeyUp( key )
   if(key == "w")then forwardKeyDown = false; end
   if(key == "s")then backKeyDown = false; end
   if(key == "a")then leftKeyDown = false; end
   if(key == "d")then rightKeyDown = false; end
   
   if(key == "space")then spaceKeyDown = false; end
   if(key == "shift")then shiftKeyDown = false; end
end


Took about 2 hours if that as i had too fix bugs in the middle.