62 lines
2.4 KiB
C#
62 lines
2.4 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class GameManager : MonoBehaviour {
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// inspector settings
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public GameObject asteroidPrefab;
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public GameObject spaceship;
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public static GameObject staticSpaceship;
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// class-level statics
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public static GameManager instance;
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public static int currentGameLevel;
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public static Vector3 screenBottomLeft, screenTopRight;
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public static float screenWidth, screenHeight;
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//
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void Awake() {
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staticSpaceship = spaceship;
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}
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// Use this for initialization
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void Start() {
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instance = this;
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Camera.main.transform.position = new Vector3 (0f, 30f, 0f);
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Camera.main.transform.LookAt (Vector3.zero, new Vector3 (0f, 0f, 1f));
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currentGameLevel = 0;
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// find screen corners and size, in world coordinates
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// for ViewportToWorldPoint, the z value specified is in world units from the camera
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screenBottomLeft = Camera.main.ViewportToWorldPoint(new Vector3(0f,0f,30f));
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screenTopRight = Camera.main.ViewportToWorldPoint (new Vector3(1f,1f,30f));
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screenWidth = screenTopRight.x - screenBottomLeft.x;
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screenHeight = screenTopRight.z - screenBottomLeft.z;
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CreatePlayerSpaceship();
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StartNextLevel();
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}
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public static void CreatePlayerSpaceship() {
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Instantiate(staticSpaceship);
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staticSpaceship.transform.position = new Vector3(0, 0, 0);
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}
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public static void StartNextLevel() {
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currentGameLevel++;
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// create some asteroids near the edges of the screen
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for (int i = 0; i < currentGameLevel * 2 + 3; i++) {
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GameObject go = Instantiate (instance.asteroidPrefab) as GameObject;
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float x, z;
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if (Random.Range (0f, 1f) < 0.5f)
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x = screenBottomLeft.x + Random.Range (0f, 0.15f) * screenWidth; // near the left edge
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else
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x = screenTopRight.x - Random.Range (0f, 0.15f) * screenWidth; // near the right edge
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if (Random.Range (0f, 1f) < 0.5f)
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z = screenBottomLeft.z + Random.Range (0f, 0.15f) * screenHeight; // near the bottom edge
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else
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z = screenTopRight.z - Random.Range (0f, 0.15f) * screenHeight; // near the top edge
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go.transform.position = new Vector3(x, 0f, z);
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}
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}
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} |