annotate Orchestland/Assets/LeapMotion/DemoResources/Scripts/CubeWave.cs @ 1:f7675884f2a1

Add Orchestland project
author Daiki OYAKAWA <e135764@ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2015 23:09:20 +0900
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1 /******************************************************************************\
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2 * Copyright (C) Leap Motion, Inc. 2011-2014. *
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3 * Leap Motion proprietary. Licensed under Apache 2.0 *
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4 * Available at http://www.apache.org/licenses/LICENSE-2.0.html *
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5 \******************************************************************************/
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6
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7 using UnityEngine;
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8 using System.Collections;
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10 public class CubeWave : MonoBehaviour {
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12 private const float BRIGHTNESS_SCALE = 5.0f;
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13 private const float BASE_BRIGHTNESS = 0.2f;
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15 public int gridWidth = 25;
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16 public int gridHeight = 25;
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17 public float cellWidth = 1.0f;
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18 public float cellHeight = 1.0f;
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19 public float springConstant = 200.0f;
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20 public float damping = 0.01f;
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21
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22 public Transform model;
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23 public Light lowGlow;
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24 public Light highGlow;
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25 public Color lowColor;
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26 public Color highColor;
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27
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28 Transform[,] cube_grid_;
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29
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30 void Start() {
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31 cube_grid_ = new Transform[gridHeight + 2, gridWidth + 2];
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32 for (int r = 0; r < gridHeight + 2; ++r) {
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33 for (int c = 0; c < gridWidth + 2; ++c) {
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34 cube_grid_[r, c] = transform;
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35 }
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36 }
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37
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38 float center_x = gridWidth * cellWidth / 2.0f;
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39 float center_y = gridHeight * cellHeight / 2.0f;
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40
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41 // Setup the cube grid.
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42 for (int r = 1; r <= gridHeight; ++r) {
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43 for (int c = 1; c <= gridWidth; ++c) {
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44 Vector3 location = new Vector3(c * cellWidth - center_x, 0, r * cellHeight - center_y);
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45 cube_grid_[r, c] = Instantiate(model, transform.position + location,
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46 transform.rotation * model.transform.rotation) as Transform;
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47 cube_grid_[r, c].parent = transform;
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48 }
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49 }
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50 }
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51
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52 void Update() {
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53 float low_total_light = 0.0f;
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54 float high_total_light = 0.0f;
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55
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56 for (int r = 1; r <= gridHeight; ++r) {
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57 for (int c = 1; c <= gridWidth; ++c) {
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58
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59 // Discrete wave equation with damping.
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60 float neighbor_sum = (cube_grid_[r - 1, c].position.y + cube_grid_[r, c - 1].position.y +
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61 cube_grid_[r + 1, c].position.y + cube_grid_[r, c + 1].position.y);
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62
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63 float delta_from_rest = 0.25f * neighbor_sum - cube_grid_[r, c].position.y;
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64 cube_grid_[r, c].GetComponent<Rigidbody>().AddForce(springConstant * Vector3.up * delta_from_rest);
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65 cube_grid_[r, c].GetComponent<Rigidbody>().velocity *= (1 - damping);
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66
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67 // Set color of cube and add to glow amount based on current height.
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68 float delta_zero = transform.position.y - cube_grid_[r, c].position.y;
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69 float brightness = BASE_BRIGHTNESS +
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70 BRIGHTNESS_SCALE * Mathf.Log(1 + 0.2f * delta_zero);
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71
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72 if (brightness < 0) {
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73 cube_grid_[r, c].GetComponent<Renderer>().material.SetColor("_Color", highColor * (-brightness));
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74 high_total_light -= brightness / (gridHeight * gridWidth);
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75 }
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76 else {
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77 cube_grid_[r, c].GetComponent<Renderer>().material.SetColor("_Color", lowColor * brightness);
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78 low_total_light += brightness / (gridHeight * gridWidth);
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79 }
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80 }
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81 }
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82
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83 // Set glow amount.
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84 if (lowGlow != null)
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85 lowGlow.intensity = low_total_light;
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86 if (highGlow != null)
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87 highGlow.intensity = high_total_light;
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88 }
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89 }