Hi, I’m a begginer and I’m going throught the “War Battles Tutorial”. For the moment I can move the character, but I when I press the “fire key”, I don’t see any rocket. I tried few thing, but it didn’t worked. Here’s the whole program:
function init(self)
msg.post(".", "acquire_input_focus")
self.moving = false
self.firing = false -- [1]
self.input = vmath.vector3()
self.dir = vmath.vector3(0, 1, 0)
self.speed = 50
end
function final(self) -- [7]
msg.post(".", "release_input_focus") -- [8]
end
function update(self, dt)
if self.moving then
local pos = go.get_position()
pos = pos + self.dir * self.speed * dt
go.set_position(pos)
end
if self.firing then
factory.create("#rocketfactory") -- [1]
end
self.input.x = 0
self.input.y = 0
self.moving = false
self.firing = false -- [2]
end
function on_input(self, action_id, action) -- [14]
if action_id == hash("up") then
self.input.y = 1 -- [15]
elseif action_id == hash("down") then
self.input.y = -1
elseif action_id == hash("left") then
self.input.x = -1
elseif action_id == hash("right") then
self.input.x = 1
elseif action_id == hash("fire") and action.pressed then
self.firing = true
end
if vmath.length(self.input) > 0 then
self.moving = true -- [16]
self.dir = vmath.normalize(self.input) -- [17]
end
end
In the output panel, does it print any errors or indicators of what could be wrong? The code seems correct, as far as I can see. The variable self.firing seems to be set correctly to true when the action fire is triggered, so it would be interesting to see if the call factory.create("#rocketfactory") works?
So I add “print(self.firing)” in the update() fonction. When I press the key, it’s change to TRUE, and then it goes back to FALSE. I guess I have an issue with the " #rocketfactory", what do you think?
If you take a look at the #rocketfactory component, is it pointing to the correct gameobject for the rocket? How does the rocket gameobject look, does it have a sprite? Does the sprite have a “strange” position, like Z being set outside [-1…1]?
First, I’ve forgotten to add a sprite to the rocket, but it’s done now. (Still not working). When I click on Main>Player>Rocketfactory, the Prototype is the right component, but I don’t know how do you directly take a look at “#rocketfactory”
Yes, that’s what he meant, clicking on the rocketfactory and double checking that the prototype reference looks ok, that the sprite is there and and that the Z value is within the range [-1, 1]
The default renderer draws anything between -1 and 1 (fractional values allowed). The z-value of a sprite component is the sum of z-values of the game object z-value and sprite. The game object itself was likely spawned at depth 1 which means that the component was at 1+1=2 z.
I see now that the call to factory.create() didn’t specify a position which means that the spawned rocket was given the same position as the game object that spawned it.
The variable 