[Script to make boat sail]

still it's kinda same thing except that "motor" is not on the middle but rear.

 

now like others said if there's a point force than use that else do it as I said.

 

experimenting and tweeking and you'll get the numbers right, ...

 

 

If I us pointforce it still will not get the boat to sail in the direction it is pointing and it makes the boat sink I tryed that.

And what do you mean with "make proper parenting". I dont have a sail or a motor. I am testing with a box.

[Script to make boat sail]

I can see you are trying to simulate the reality.

 

thing is if you turn your sails the "boat" will go sideways it's same in RL but there's 1 thing you haven't in calculated witch is friction of water.

 

in RL friction of water does actually force for boat to go aerodinamically and not sideways.

 

what you need to do is 2 things

 

make proper parenting and after sails are turned so the boat slowly turnes in right dirrection.

without proper parrenting you'll be turning both instead of just desiered one.

 

well I hope I did help enough and that I did understand the problem.

 

It is not a sailboat but a motorboat I just want it to sail in the direction it is pointing even after I turn it.

But it only does that at small angle after that it goes back wards and I dont know why.

[Script to make boat sail]

I hope is more clear now

[Script to make boat sail]

Hi All,

 

I made changes to the script but it still does not make a normale circle when I steer it to left or right

 

And help is welcome. I test it with a box. What I try to do is get the boot to sail in direction of the Y angle:

 

Script.enabled = true   --bool "Enabled"
Script.gravity = false  --bool "Gravity"
Script.movespeed  = 5   --Define self.movespeed
Script.originPosition = nil --Define self.originPosition
Script.currentPosition = nil  --Define self.currentPosition
Script.oldMass = nil  --Define self.oldMass
Script.window = Window:GetCurrent() --Define self.window
Script.move = Vec3(0,0,0) --Define self.move
Script.rotation = ""  --Define self.rotation
Script.ry = 0   --Define self.ry
Script.speed = ""  --Define self.speed
function Script:Start()
self.originPosition = self.entity:GetPosition() --Get position of object
self.oldMass = self.entity:GetMass() --Get mass of object
if self.entity:GetShadowMode()>0 then
 self.entity:SetShadowMode(2)--Light.Dynamic
end

if self.enabled then
 if self.entity:GetMass() == 0 then --Get mass and check if bigger then 0
  Debug:Error("Entity mass must be greater than zero.")
 end
else
 self.entity:SetMass(0)
end
self.entity:SetGravityMode(self.gravity) --Set gravity to false
self.entity:SetFriction(0,1)   --Set Friction
self.move = Vec3(0,0,0)    --Set self.move to vector
end
function Script:UpdatePhysics() --Loop to update Physics
self.move = Vec3(0,0,0)
 local movespeed = self.movespeed  --Set movespeed to self.movespeed
 self.rotation = self.entity:GetRotation():ToString() --Set self.rotation and make it a string (else it is userdata and will not work)
 self.ry = string.sub(self.rotation,11,15) --Set self.ry with y of rotation (if cuts of x and z)
 self.ry = tonumber(self.ry)   --Set self.ry to be a number
 self.ry = math.ceil(self.ry)   --Set self.ry to be a round number

 if (self.window:KeyDown(Key.Up)) then self.move.x = -1 * movespeed * math.cos(self.ry) * Time:GetSpeed() end --Look if upper arrow key is pressed and Set value in selfmove.x (x-axis)
 if (self.window:KeyDown(Key.Up)) then self.move.z = -1 * movespeed * math.sin(self.ry) * Time:GetSpeed() end --Look if upper arrow key is pressed and Set value in selfmove.z (z-axis)
 if (self.window:KeyDown(Key.Down)) then self.move.x = movespeed * math.cos(self.ry) * Time:GetSpeed() end    --Look if lower arrow key is pressed and Set value in selfmove.x (x-axis)
 if (self.window:KeyDown(Key.Down)) then self.move.z = movespeed * math.sin(self.ry) * Time:GetSpeed() end    --Look if lower arrow key is pressed and Set value in selfmove.z (z-axis)
 if (self.window:KeyDown(Key.Right)) then self.move.y= movespeed * Time:GetSpeed() end  --Look if right arrow key is pressed and Set value in selfmove.y (y-axis rotation)
		    if (self.window:KeyDown(Key.Left)) then self.move.y= -1 * movespeed * Time:GetSpeed() end --Look if left arrow key is pressed and Set value in selfmove.y (y-axis rotation)

 self.entity:AddForce(self.move.x,0,0)   --AddForce with the self.move.x value on x-axis
 self.entity:AddForce(0,0,self.move.z) --AddForce with the self.move.z value on z-axis
 self.entity:AddTorque(0,self.move.y*50,0) --AddTorque with the self.move.y value on y-axis (rotation)
 Time:Update() --Update Time value
end

function Script:PostRender() --Function to print on game screen
local context=Context:GetCurrent()
context:SetBlendMode(Blend.Alpha) --Set blend to alpha so only letters will show
context:DrawText("Rotation :".. self.ry .."",5,130) --Set text and position of text
--context:DrawText("Speed    :".. self.speed .."",5,140) --Set text and position of text
end

[Script to make boat sail]

Hi All,

 

I made changes to the script but it still does not make a normale circle when I steer it to left or right

 

And help is welcome. I test it with a box. What I try to do is get the boot to sail in direction of the Y angle:

 

Script.enabled = true --bool "Enabled"

Script.gravity = false --bool "Gravity"

Script.movespeed = 5 --Define self.movespeed

Script.originPosition = nil --Define self.originPosition

Script.currentPosition = nil --Define self.currentPosition

Script.oldMass = nil --Define self.oldMass

Script.window = Window:GetCurrent() --Define self.window

Script.move = Vec3(0,0,0) --Define self.move

Script.rotation = "" --Define self.rotation

Script.ry = 0 --Define self.ry

Script.speed = "" --Define self.speed

 

function Script:Start()

self.originPosition = self.entity:GetPosition() --Get position of object

 

self.oldMass = self.entity:GetMass() --Get mass of object

 

if self.entity:GetShadowMode()>0 then

self.entity:SetShadowMode(2)--Light.Dynamic

end

 

if self.enabled then

if self.entity:GetMass() == 0 then --Get mass and check if bigger then 0

Debug:Error("Entity mass must be greater than zero.")

end

else

self.entity:SetMass(0)

end

 

 

self.entity:SetGravityMode(self.gravity) --Set gravity to false

self.entity:SetFriction(0,1) --Set Friction

self.move = Vec3(0,0,0) --Set self.move to vector

 

end

 

function Script:UpdatePhysics() --Loop to update Physics

 

self.move = Vec3(0,0,0)

local movespeed = self.movespeed --Set movespeed to self.movespeed

self.rotation = self.entity:GetRotation():ToString() --Set self.rotation and make it a string (else it is userdata and will not work)

self.ry = string.sub(self.rotation,11,15) --Set self.ry with y of rotation (if cuts of x and z)

self.ry = tonumber(self.ry) --Set self.ry to be a number

self.ry = math.ceil(self.ry) --Set self.ry to be a round number

 

if (self.window:KeyDown(Key.Up)) then self.move.x = -1 * movespeed * math.cos(self.ry) * Time:GetSpeed() end --Look if upper arrow key is pressed and Set value in selfmove.x (x-axis)

if (self.window:KeyDown(Key.Up)) then self.move.z = -1 * movespeed * math.sin(self.ry) * Time:GetSpeed() end --Look if upper arrow key is pressed and Set value in selfmove.z (z-axis)

if (self.window:KeyDown(Key.Down)) then self.move.x = movespeed * math.cos(self.ry) * Time:GetSpeed() end --Look if lower arrow key is pressed and Set value in selfmove.x (x-axis)

if (self.window:KeyDown(Key.Down)) then self.move.z = movespeed * math.sin(self.ry) * Time:GetSpeed() end --Look if lower arrow key is pressed and Set value in selfmove.z (z-axis)

if (self.window:KeyDown(Key.Right)) then self.move.y= movespeed * Time:GetSpeed() end --Look if right arrow key is pressed and Set value in selfmove.y (y-axis rotation)

if (self.window:KeyDown(Key.Left)) then self.move.y= -1 * movespeed * Time:GetSpeed() end --Look if left arrow key is pressed and Set value in selfmove.y (y-axis rotation)

 

self.entity:AddForce(self.move.x,0,0) --AddForce with the self.move.x value on x-axis

self.entity:AddForce(0,0,self.move.z) --AddForce with the self.move.z value on z-axis

self.entity:AddTorque(0,self.move.y*50,0) --AddTorque with the self.move.y value on y-axis (rotation)

 

Time:Update() --Update Time value

end

 

 

function Script:PostRender() --Function to print on game screen

local context=Context:GetCurrent()

context:SetBlendMode(Blend.Alpha) --Set blend to alpha so only letters will show

context:DrawText("Rotation :".. self.ry .."",5,130) --Set text and position of text

--context:DrawText("Speed :".. self.speed .."",5,140) --Set text and position of text

end

[Beta branch available in Steam]

Ok now I get just set it on BETA and dont enter a password. I had same problem

[Script to make boat sail]

Is not working it still works same as normal add force only it capsizes the boat.

 

It does not change the forward direction. So you turn like you would using y axis torque but you stay moving in the same direction so boat ends up sailing backward.

[Script to make boat sail]

Ok gona try it out thanks

[Script to make boat sail]

Why not applying a local force or torque on some direction or point of boat to turn ?

I done it already for some Fzero style game test and it works.

 

How can you apply some force on a local point on the boat instead of the whole boat?

[Script to make boat sail]

Hi all,

 

I trying to make a script to make a boat sail.

 

This script works. But to steer it I want to put the script in engine, and put it at the back of the boat(box2 is test box I us to simulate engine) and use a hinge to steer it with y axis.

 

Problem is the hinge dont seem to work in this script I made:

 

Script.enabled = true --bool "Enabled"

Script.gravity = false --bool "Gravity"

Script.movespeed = 10

Script.originPosition = nil

Script.currentPosition = nil

Script.oldMass = nil

Script.window = Window:GetCurrent()

Script.move = Vec3(0,0,0)

Script.Parent = boat

 

function Script:Start()

self.originPosition = self.entity:GetPosition()

 

self.oldMass = self.entity:GetMass()

 

if self.entity:GetShadowMode()>0 then

self.entity:SetShadowMode(2)--Light.Dynamic

end

 

if self.enabled then

if self.entity:GetMass() == 0 then

Debug:Error("Entity mass must be greater than zero.")

end

else

self.entity:SetMass(0)

end

 

self.entity:SetGravityMode(self.gravity)

self.entity:SetFriction(0,1)

self.move = Vec3(0,0,0)

 

self.parent = Model:Box(self.Parent)

self.child = Model:Box(self.entity)

self.joint = Joint:Hinge(0,10,0, 0,0,1, self.child, self.parent)

self.joint:SetLimits(-45,45)

self.joint:EnableLimits()

 

 

 

end

 

 

 

function Script:UpdatePhysics()

 

self.move = Vec3(0,0,0)

local movespeed = self.movespeed

 

if (self.window:KeyDown(Key.Down)) then self.move.x= movespeed * Time:GetSpeed() end

if (self.window:KeyDown(Key.Up)) then self.move.x= -1 * movespeed * Time:GetSpeed() end

if (self.window:KeyDown(Key.Right)) then self.move.y= movespeed * Time:GetSpeed() end

if (self.window:KeyDown(Key.Left)) then self.move.y= -1 * movespeed * Time:GetSpeed() end

 

 

self.entity:AddForce(self.move.x,0,self.move.z)

self.entity:AddTorque(0,self.move.y,0)

 

 

Time:Update()

end

 

 

Does someone have some tips?

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