Question by
marcus_emery · Apr 23, 2016 at 02:24 AM ·
movement2d-platformerrigidbody2dplatformer
Mouse determines direction player moves, W makes them go that direction.
Hey guys, I'm attempting to make a platformer in which the mouse, depending on whether it is on the left of the screen or right of the screen, determines which direction the character faces and when the player presses W, the character will move that direction. Here's my code for the PlatformerCharacter2D.cs file I have
using UnityEngine;
namespace UnitySampleAssets._2D
{
public class PlatformerCharacter2D : MonoBehaviour
{
private bool facingRight = true; // For determining which way the player is currently facing.
[SerializeField] private float maxSpeed = 10f; // The fastest the player can travel in the x axis.
[SerializeField] private float jumpForce = 400f; // Amount of force added when the player jumps.
[Range(0, 1)] [SerializeField] private float crouchSpeed = .36f;
// Amount of maxSpeed applied to crouching movement. 1 = 100%
[SerializeField] private bool airControl = false; // Whether or not a player can steer while jumping;
[SerializeField] private LayerMask whatIsGround; // A mask determining what is ground to the character
private Transform groundCheck; // A position marking where to check if the player is grounded.
private float groundedRadius = .2f; // Radius of the overlap circle to determine if grounded
private bool grounded = false; // Whether or not the player is grounded.
private Transform ceilingCheck; // A position marking where to check for ceilings
private float ceilingRadius = .01f; // Radius of the overlap circle to determine if the player can stand up
private Animator anim; // Reference to the player's animator component.
Transform playerGraphics;
private void Awake()
{
// Setting up references.
groundCheck = transform.Find("GroundCheck");
ceilingCheck = transform.Find("CeilingCheck");
anim = GetComponent<Animator>();
playerGraphics = transform.FindChild("Player01");
}
private void FixedUpdate()
{
// The player is grounded if a circlecast to the groundcheck position hits anything designated as ground
grounded = Physics2D.OverlapCircle(groundCheck.position, groundedRadius, whatIsGround);
anim.SetBool("Ground", grounded);
// Set the vertical animation
anim.SetFloat("vSpeed", GetComponent<Rigidbody2D>().velocity.y);
Vector3 mousePos = Input.mousePosition;
mousePos.z = 5.23f;
Vector3 objectPos = Camera.main.WorldToScreenPoint(transform.position);
mousePos.x = mousePos.x - objectPos.x;
mousePos.y = mousePos.y - objectPos.y;
float absolAngle = Mathf.Abs(Mathf.Atan2(mousePos.y, mousePos.x) * Mathf.Rad2Deg);
Vector3 theScale = transform.localScale;
if (absolAngle > 90 && theScale.x >= 0)
{
theScale.x *= -1;
transform.localScale = theScale;
}
else if(absolAngle < 90 && theScale.x <= 0)
{
theScale.x *= -1;
transform.localScale = theScale;
}
}
public void Move(float move, bool crouch, bool jump)
{
// If crouching, check to see if the character can stand up
if (!crouch && anim.GetBool("Crouch"))
{
// If the character has a ceiling preventing them from standing up, keep them crouching
if (Physics2D.OverlapCircle(ceilingCheck.position, ceilingRadius, whatIsGround))
crouch = true;
}
// Set whether or not the character is crouching in the animator
anim.SetBool("Crouch", crouch);
//only control the player if grounded or airControl is turned on
if (grounded || airControl)
{
// Reduce the speed if crouching by the crouchSpeed multiplier
move = (crouch ? move*crouchSpeed : move);
// The Speed animator parameter is set to the absolute value of the horizontal input.
anim.SetFloat("Speed", Mathf.Abs(move));
// Move the character
GetComponent<Rigidbody2D>().velocity = new Vector2(move*maxSpeed, GetComponent<Rigidbody2D>().velocity.y);
// If the input is moving the player right and the player is facing left...
if (move > 0 && !facingRight)
// ... flip the player.
Flip();
// Otherwise if the input is moving the player left and the player is facing right...
else if (move < 0 && facingRight)
// ... flip the player.
Flip();
}
// If the player should jump...
if (grounded && jump && anim.GetBool("Ground"))
{
// Add a vertical force to the player.
grounded = false;
anim.SetBool("Ground", false);
GetComponent<Rigidbody2D>().AddForce(new Vector2(0f, jumpForce));
}
}
private void Flip()
{
// Switch the way the player is labelled as facing.
facingRight = !facingRight;
// Multiply the player's x local scale by -1.
Vector3 theScale = playerGraphics.localScale;
theScale.x *= -1;
transform.localScale = theScale;
}
}
}
And here is the other file it references
using UnityEngine;
using UnitySampleAssets.CrossPlatformInput;
namespace UnitySampleAssets._2D
{
[RequireComponent(typeof (PlatformerCharacter2D))]
public class Platformer2DUserControl : MonoBehaviour
{
private PlatformerCharacter2D character;
bool jump = Input.GetKey(KeyCode.Space);
bool running = Input.GetKey(KeyCode.W);
private void Awake()
{
character = GetComponent<PlatformerCharacter2D>();
}
private void Update()
{
if (!jump)
// Read the jump input in Update so button presses aren't missed.
jump = CrossPlatformInputManager.GetButtonDown("Jump");
}
private void FixedUpdate()
{
// Read the inputs.
bool crouch = Input.GetKey(KeyCode.LeftShift);
float h = CrossPlatformInputManager.GetAxis("Horizontal");
// Pass all parameters to the character control script.
character.Move(h, crouch, jump);
jump = false;
}
}
}
Any help is appreciated!
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