1 using System;
2 using UnityEngine;
3 using System.Collections;
4
5 public class PlayerController : MonoBehaviour
6 {
7
8 public float speed = 0.4f;
9 Vector2 _dest = Vector2.zero;
10 Vector2 _dir = Vector2.zero;
11 Vector2 _nextDir = Vector2.zero;
12
13 [Serializable]
14 public class PointSprites
15 {
16 public GameObject[] pointSprites;
17 }
18
19 public PointSprites points;
20
21 public static int killstreak = 0;
22
23 // script handles
24 private GameGUINavigation GUINav;
25 private GameManager GM;
26 private ScoreManager SM;
27
28 private bool _deadPlaying = false;
29
30 // Use this for initialization
31 void Start()
32 {
33 GM = GameObject.Find("Game Manager").GetComponent<GameManager>();
34 SM = GameObject.Find("Game Manager").GetComponent<ScoreManager>();
35 GUINav = GameObject.Find("UI Manager").GetComponent<GameGUINavigation>();
36 _dest = transform.position;
37 }
38
39 // Update is called once per frame
40 void FixedUpdate()
41 {
42 switch (GameManager.gameState)
43 {
44 case GameManager.GameState.Game:
45 ReadInputAndMove();
46 Animate();
47 break;
48
49 case GameManager.GameState.Dead:
50 if (!_deadPlaying)
51 StartCoroutine("PlayDeadAnimation");
52 break;
53 }
54
55
56 }
57
58 IEnumerator PlayDeadAnimation()
59 {
60 _deadPlaying = true;
61 GetComponent<Animator>().SetBool("Die", true);
62 yield return new WaitForSeconds(1);
63 GetComponent<Animator>().SetBool("Die", false);
64 _deadPlaying = false;
65
66 if (GameManager.lives <= 0)
67 {
68 Debug.Log("Treshold for High Score: " + SM.LowestHigh());
69 if (GameManager.score >= SM.LowestHigh())
70 GUINav.getScoresMenu();
71 else
72 GUINav.H_ShowGameOverScreen();
73 }
74
75 else
76 GM.ResetScene();
77 }
78
79 void Animate()
80 {
81 Vector2 dir = _dest - (Vector2)transform.position;
82 GetComponent<Animator>().SetFloat("DirX", dir.x);
83 GetComponent<Animator>().SetFloat("DirY", dir.y);
84 }
85
86 bool Valid(Vector2 direction)
87 {
88 // cast line from 'next to pacman' to pacman
89 // not from directly the center of next tile but just a little further from center of next tile
90 Vector2 pos = transform.position;
91 direction += new Vector2(direction.x * 0.45f, direction.y * 0.45f);
92 RaycastHit2D hit = Physics2D.Linecast(pos + direction, pos);
93 return hit.collider.name == "pacdot" || (hit.collider == GetComponent<Collider2D>());
94 }
95
96 public void ResetDestination()
97 {
98 _dest = new Vector2(15f, 11f);
99 GetComponent<Animator>().SetFloat("DirX", 1);
100 GetComponent<Animator>().SetFloat("DirY", 0);
101 }
102
103 void ReadInputAndMove()
104 {
105 // move closer to destination
106 Vector2 p = Vector2.MoveTowards(transform.position, _dest, speed);
107 GetComponent<Rigidbody2D>().MovePosition(p);
108
109 // get the next direction from keyboard
110 if (Input.GetAxis("Horizontal") > 0) _nextDir = Vector2.right;
111 if (Input.GetAxis("Horizontal") < 0) _nextDir = -Vector2.right;
112 if (Input.GetAxis("Vertical") > 0) _nextDir = Vector2.up;
113 if (Input.GetAxis("Vertical") < 0) _nextDir = -Vector2.up;
114
115 // if pacman is in the center of a tile
116 if (Vector2.Distance(_dest, transform.position) < 0.00001f)
117 {
118 if (Valid(_nextDir))
119 {
120 _dest = (Vector2)transform.position + _nextDir;
121 _dir = _nextDir;
122 }
123 else // if next direction is not valid
124 {
125 if (Valid(_dir)) // and the prev. direction is valid
126 _dest = (Vector2)transform.position + _dir; // continue on that direction
127
128 // otherwise, do nothing
129 }
130 }
131 }
132
133 public Vector2 getDir()
134 {
135 return _dir;
136 }
137
138 public void UpdateScore()
139 {
140 killstreak++;
141
142 // limit killstreak at 4
143 if (killstreak > 4) killstreak = 4;
144
145 Instantiate(points.pointSprites[killstreak - 1], transform.position, Quaternion.identity);
146 GameManager.score += (int)Mathf.Pow(2, killstreak) * 100;
147
148 }
149 }
script handles
Use this for initialization
Update is called once per frame
cast line from 'next to pacman' to pacman
not from directly the center of next tile but just a little further from center of next tile
move closer to destination
get the next direction from keyboard
if pacman is in the center of a tile
else if next direction is not valid
if (Valid(_dir)) and the prev. direction is valid
_dest = (Vector2)transform.position + _dir; continue on that direction
otherwise, do nothing
limit killstreak at 4
