Processing Forum

Screen name:
choloboy7

choloboy7's Profile

2 Posts

0 Responses

0 Followers

Activity Trend

Last 30 days

Loading Chart...

Show:

Expanded view
List view

Make objects grow at same rate

[1 Reply]
- 21-Nov-2012 06:09 PM
- Forum: Programming Questions
I have this program wrritten up, it works ok but the stem and flower grow at different rates. How can i make the two grow at the same rate?
2. Stem myStem;
3. Circle circles[];
4. Flower flowers = new Flower();
5. float scaleFactor=0.5;
7. void setup() {
8. size(floor(400*scaleFactor), floor(800*scaleFactor));
9. myStem = new Stem(200, 800);
10. flowers = new Flower (0, 0);
11. //mpoved this to setup, no need to recreate each frame
12. circles = new Circle[6];
13. circles[0] = new Circle(0, -40, 50, 50);
14. circles[1] = new Circle(0, -40, 50, 50);
15. circles[2] = new Circle(0, -40, 50, 50);
16. circles[3] = new Circle(0, -40, 50, 50);
17. circles[4] = new Circle(0, -40, 50, 50);
18. circles[5] = new Circle(0, 0, 50, 50);
19. // also smooth only needs to be called once
20. // unless ther is a noSmooth() somewhere
21. smooth();
22. }
24. void draw() {
26. float grow = 0;
27. //translate(myStem.initalloX, myStem.initalloY);
28. myStem.drawStem();
29. //set centre point
30. translate(myStem.initalloX, ((frameCount>250)?myStem.initalloY- 500:myStem.initalloY-(2*frameCount)));
31. if (frameCount>10) {
32. flowers.grow();
35. flowers.display();
36. }
37. }
39. class Stem {
40. int initalloX=200;
41. int initalloY=800;
43. Stem(int tempInitalloX, int tempInitalloY) {
44. initalloX = tempInitalloX;
45. initalloY = tempInitalloY;
46. }
48. void drawStem() {
49. background(#0DBADB);
50. scale(scaleFactor, scaleFactor);
51. stroke (12, 149, 11);
52. fill (12, 149, 11);
53. strokeWeight(10);
54. line(initalloX, initalloY, initalloX, ((frameCount>250)?initalloY-500:initalloY-(2*frameCount)));
55. //stem1
56. if (frameCount>101) {
57. noStroke();
58. translate(initalloX, initalloY-200);
59. scale(min((float)(frameCount-100)/100, 1), min((float)(frameCount-100)/100, 1));
60. beginShape();
61. vertex(0, 0);
62. bezierVertex(-40, -5, -30, -40, -80, -20);
63. bezierVertex(-47, -16, -52, 8, 0, 0);
64. endShape(CLOSE);
65. scale(1/min((float)(frameCount-100)/100, 1), 1/min((float)(frameCount-100)/100, 1));
66. translate(-initalloX, -(initalloY-200));
67. noStroke();
68. }
69. //stem2
70. if (frameCount>151) {
71. // noStroke();
72. translate(initalloX, initalloY-300);
73. scale(-min((float)(frameCount-150)/150, 1), min((float)(frameCount-150)/150, 1));
74. beginShape();
75. vertex(0, 0);
76. bezierVertex(-40, -5, -30, -40, -80, -20);
77. bezierVertex(-47, -16, -52, 8, 0, 0);
78. endShape(CLOSE);
79. scale(-1/min((float)(frameCount-150)/150, 1), 1/min((float)(frameCount-150)/150, 1));
80. translate(-initalloX, -(initalloY-300));
81. }
82. }
83. }
85. class Circle {
87. int c1 = 0;
88. int c2 = -40;
89. float c3 = 50;
90. float c4 = 50;
92. Circle(int tc1, int tc2, float tc3, float tc4) {
93. c1 = tc1;
94. c2 = tc2;
95. c3 = tc3;
96. c4 = tc4;
97. }
98. }
100. class Flower {
102. float centerX;
103. float centerY;
104. float posX;
105. float posY;
106. float maxSize = 51;
107. float maxFactor = 40;
108. float sizes = 0;
109. float factor = 0;
110. float speed = 0.17;
112. Flower() {
113. }
114. Flower(float _centerX, float _centerY)
115. {
116. centerX = _centerX;
117. centerY = _centerY;
118. }
119. void setCenter(float x, float y)
120. {
121. centerX = x;
122. centerY = y;
123. }
124. void display()
125. {
126. for (int i = -18; i < 360; i+=72)
127. {
128. posX = centerX + cos(radians(i)) * factor;
129. posY = centerY + sin(radians(i)) * factor;
130. noStroke();
131. fill(170, 14, 24); // blue
132. ellipse(posX, posY, sizes, sizes);
133. }
134. fill(14, 17, 170);
136. ellipse(centerX, centerY, sizes , sizes );
137. }
138. void grow()
139. {
140. factor = (factor < maxFactor )? factor + speed: maxFactor;
141. sizes = (sizes < maxSize )? sizes + speed*1.3 : maxSize;
142. }
143. }// end of Flower
Also you can see i have an array of circle objects that was going to be used to create ellipses (the flower)...
Is there anyway with the code i have drawing the flower now to use the array?

Thanks in advance.

Change to use OBJECTS

[1 Reply]
- 19-Nov-2012 06:46 PM
- Forum: Programming Questions
I am trying to write a program that simulates in a basic way, the growth of a flower. My main problem is change this to a more object oriented program. I am new to OOP so correct me if i am wrong... There can be 4 classes
- one called Point
- one called Circle to store all the circles attributes
- one called Stem to store all the stem attributes
- one called Flower to store the petals.
The following is the code I have this far.. So my main question is, how do i make this program object oriented using those classes... And as far the program goes, i am still finishing off the growth of the flower, only stem growth is complete.
2. int initalloX=200;
3. int initalloY=800;
4. float factorscala=0.5;
6. void setup() {
8. size(floor(400*factorscala), floor(800*factorscala));
10. background(150);
11. smooth();
12. }
14. void draw() {
15. background(#0DBADB);
16. scale(factorscala, factorscala);
17. stroke (12, 149, 11);
18. fill (12, 149, 11);
19. strokeWeight(10);
20. line(initalloX, initalloY, initalloX, ((frameCount>250)?initalloY-500:initalloY-(2*frameCount)));
21. //stem1
22. if (frameCount>101) {
23. noStroke();
24. translate(initalloX, initalloY-200);
25. scale(min((float)(frameCount-100)/100, 1), min((float)(frameCount-100)/100, 1));
26. beginShape();
27. vertex(0, 0);
28. bezierVertex(-40, -5, -30, -40, -80, -20);
29. bezierVertex(-47, -16, -52, 8, 0, 0);
30. endShape(CLOSE);
31. scale(1/min((float)(frameCount-100)/100, 1), 1/min((float)(frameCount-100)/100, 1));
32. translate(-initalloX, -(initalloY-200));
33. }
34. //stem2
35. if (frameCount>151) {
36. noStroke();
37. translate(initalloX, initalloY-300);
38. scale(-min((float)(frameCount-150)/150, 1), min((float)(frameCount-150)/150, 1));
39. beginShape();
40. vertex(0, 0);
41. bezierVertex(-40, -5, -30, -40, -80, -20);
42. bezierVertex(-47, -16, -52, 8, 0, 0);
43. endShape(CLOSE);
44. scale(-1/min((float)(frameCount-150)/150, 1), 1/min((float)(frameCount-150)/150, 1));
45. translate(-initalloX, -(initalloY-300));
46. }
47. }
Thanks in advance for any input/ help

«Prev
Next »