koobas.hobune.stream
My cannon that I am trying to make is spawning bricks from every direction and at 1 bullet per frame
My cannon is a unity square stretched to be a rectangular prism and when I loaded my scene my cannon starts spawning bricks from every direction. To fix this I need to know 2 things. How to use coroutines to make my bullet prefab spawn every few seconds. How to make bullets shoot from the same consistent direction
using UnityEngine;
using System.Collections;
public class CannonScript : MonoBehaviour {
public GameObject Cannon;
public GameObject Bullet;
public float Bullet_Foward_Force;
void Start ()
{
}
int counter = 0;
void Update ()
{
counter++;
if (counter < 50000)
{
GameObject temporary_Bullet_handler = Instantiate(Bullet, Cannon.transform.position, Cannon.transform.rotation) as GameObject;
Rigidbody Temporary_Rigidbody;
Temporary_Rigidbody = temporary_Bullet_handler.GetComponent<Rigidbody>();
Temporary_Rigidbody.AddForce(transform.forward * Bullet_Foward_Force);
counter = 0;
}
}
}
This uses unity's time counters to detect time differences between frames
float previousTime, waitTime;
void Start()
{
previousTime = Time.timeSinceLevelLoad;
waitTime = 5; // 5 seconds
}
void Update()
{
if (Time.timeSinceLevelLoad - previousTime > waitTime)
{
Fire();
previousTime = Time.timeSinceLevelLoad;
}
}
void Fire()
{
GameObject temporary_Bullet_handler = Instantiate(Bullet, Cannon.transform.position, Cannon.transform.rotation) as GameObject;
Rigidbody Temporary_Rigidbody;
Temporary_Rigidbody = temporary_Bullet_handler.GetComponent<Rigidbody>();
Temporary_Rigidbody.AddForce(transform.forward * Bullet_Foward_Force);
}
The method you used would work (I think), but the main problem I see is if (counter < 50000). It should be a >
thx, it fires as it should but it doesn't fire is the direction I want it to no matter how I scale it. How do i fix that?
Does it fire in the direction that it's facing? If you could provide an image of the bullet firing I'd be able to help.
It flys relative to a cube I have positioned. The way it calculates where to start placing the bullet is the magnitude of the 2 distances and what I imagined to happen was this
[ ] = cube for magnitude(cube has no collison) [ ___] = cannon O = bullet --- = pathing of the bullet
what I want to happen [ ] o --- [_]
what actually happens [ ] [___] o---- (bullet spawns from behind the cannon and goes up in a arc like this --- > ^
so basicly when I try to have my cannon shoot bullets it shoots the bullets in a arc up that goes up and then slides down to fly off the ledge
Do something like
float bulletSpeed = 5f;
bullet.transform.position = Vector3.$$anonymous$$oveTowards(cannon.transform.up, cube.transform.position,
bulletSpeed);
The cannon.transform.up should place it 1 unit above the cannon, you can multiply this value to fine tune the position of the bullet's spawn
Ok, now my cannon is firing bullets at 1 frame per second again. But it is firing bullets 1 frame per second after 5 seconds.
using UnityEngine;
using System.Collections;
public class CannonScript : $$anonymous$$onoBehaviour
{
float previousTime, waitTime;
public Transform Cannonballpos;
public GameObject Bullet;
public float ForceAmmount = 1000;
void Start()
{
previousTime = Time.timeSinceLevelLoad;
waitTime = 5;
}
int counter = 0;
void Update()
{
if (Time.timeSinceLevelLoad - previousTime > waitTime)
{
Fire();
previousTime = Time.timeSinceLevelLoad;
}
}
void Fire()
{
Rigidbody CannonRigidbody;
CannonRigidbody = Instantiate(Bullet, Cannonballpos.position, Cannonballpos.rotation) as Rigidbody;
CannonRigidbody.AddForce(Cannonballpos.forward * ForceAmmount);
counter = 0;
}
}
Here, I made a unity project and tested this out. Just drag the cube onto the target variable and the cannonball onto the projectile variable, the rest should work itself.
using UnityEngine;
public class CannonScript : $$anonymous$$onoBehaviour
{
float previousTime;
public GameObject
projectile, // The cannonball
target, // The cube that the cannon points at
cannonBallPos; // The spawn position of the cannon ball
public float
waitTime = 1, // Time between shots
forceAmount = 1000;
void Start()
{
previousTime = Time.timeSinceLevelLoad;
transform.localScale = new Vector3(1, 1, 2);
cannonBallPos = new GameObject("cannonBallPos"); // Creates a new game object
cannonBallPos.transform.parent = transform; // Sets the parent as the cannon
cannonBallPos.transform.position = transform.position + new Vector3(0, 0, 0.5f); // $$anonymous$$oves to the front of the cannon
}
void Update()
{
transform.LookAt(target.transform);
if (Time.timeSinceLevelLoad - previousTime > waitTime)
{
previousTime = Time.timeSinceLevelLoad;
Fire();
}
}
void Fire()
{
GameObject cannonBall;
cannonBall = (GameObject)Instantiate(projectile, cannonBallPos.transform.position, cannonBallPos.transform.rotation);
cannonBall.GetComponent<Rigidbody>().AddForce(transform.forward * forceAmount);
}
}
Sorry for such a late response but I have to saythank you so much for going out of your way and making the script. Imma use it as a learning tool and to make the cannons in my game
It's no problem, if you have any other questions feel free to ask.
