BeCreative/ParticleSystem.pde at master · cassiodezotti/BeCreative · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126


public class ParticleSystem{

  private color endColor = color(100,100,100,HSB);
   private color startColor= color(100,100,100,HSB);
  private float saturation = 0;

  private ArrayList<Particle> particles = new ArrayList<Particle>();

  public void update(){
    Iterator<Particle> i = particles.iterator();

    while (i.hasNext()) {
      Particle p = i.next();

      // Remove any particles outside of the screen
      if (p.pos.x > width /*|| p.pos.x < 0*/) {
        i.remove();
        continue;
      } else if (p.pos.y > height /*|| p.pos.y < 0*/) {
        i.remove();
        continue;
      }

      // Apply gravity
      p.applyForce(PVector.random2D());

      // Move particle position
      p.move();

      // Remove dead particles
      if (p.isDead()) {
        i.remove();
      } else {
        p.display();
      }

    }
  }
  public void addParticles(PVector position,int id) {
  //int cor = int(random(8));


  this.startColor = choseColor(id);

  //cor = int(random(8));
  this.endColor = choseColor(id+20);


      for (int i = 0; i < numberOfParticles; i++) {

        float amount = random(1);
        color col = lerpColor(this.startColor, this.endColor, amount);
        col = color(hue(col),this.saturation,100);
        //col = desaturate(col, this.saturation);
        this.particles.add(new Particle(new PVector(position.x,position.y), col));
        //println("HUE1",hue(col));
  //println("SAT1",saturation(col));
  //println("BRI1",brightness(col));
      }
    }

  public color choseColor(int id){

    color cor = color(0,0,0,HSB);
    switch(id){

    case 1:
      cor = red1;
      break;
    case 21:
      cor = red2;
      break;

   case -1:
      cor = red1;
      break;
   case 19:
      cor = red2;
      break;

   case -2:
      cor = blu1;
      break;
   case 18:
      cor = blu2;
      break;

   case 2:
      cor = blu2;
      break;
   case 22:
      cor = purple1;
      break;

   case 3:
      cor = green;
      break;
   case 23:
      cor = yellow2;
      break;

   case -3:
      cor = red1;
      break;
   case 17:
      cor = orange;
      break;
  }
    return cor;

  }

  public color desaturate(color col, float factor) {
  float sat = saturation(col) * factor;
  return color(
    hue(col),
    sat,
    brightness(col)
  );
  }

  }