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Using WiiChuck with 3D Bounce

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- 15-Apr-2011 04:08 PM
- Forum: Integration and Hardware
Hi! I'm new to Processing and I've been trying to modify this code here to work with the WiiChuckClass (for the Wii Nunchuk) using Arduino.

I've managed to get the ball moving around using the Nunchuk but when I move left the ball goes right and vice versa. Also, the ball's movements are restricted and I don't know which parts of the code to change to make the ball move anywhere :S

I was wondering if anyone here could give me any advice or suggestions on how to change the code below.

Thanks for your time :)
2. /////////////////// *********PROCESSING CODE ONLY*********
4. /**
7. NOTE: 0,0,0 - top left corner (facing the computer monitor)
8. negative Z axis points 'into' the computer monitor
9. positive Y axis points down
10. positive X axis points to the right
11. */
12. float xmag, ymag = 0;
13. float newXmag, newYmag = 0;
14. int sensorCount = 5; // number of values to expect
16. import processing.serial.*;
17. Serial myPort; // The serial port
19. int BAUDRATE = 115200;
20. char DELIM = ','; // the delimeter for parsing incoming data
22. int size = 40; // Width of the shape
23. float xpos, ypos, zpos; // Starting position of shape
24. float depth;
26. int xdirection = 1; // Left or Right
27. int ydirection = 1; // Top to Bottom
28. int zdirection = 1; //front or back
31. void setup()
32. {
33. size(1024, 768, P3D);
34. noStroke();
35. frameRate(60);
36. smooth();
37. // Set the starting position of the shape
38. xpos = width/2;
39. ypos = height/2;
40. zpos = -height/2; //note that Zaxis goes 'into' the screen
41. depth = -height;
42. myPort = new Serial(this, Serial.list()[1], BAUDRATE);
43. // clear the serial buffer:
44. myPort.clear();
46. }
47. float x, z;
49. void draw()
50. {
51. background(102);
52. lights();
54. //glass box //note: line(x1, y1, z1, x2, y2, z2)
55. stroke(255);
56. //back
57. line(0,0,depth, width,0,depth);
58. line(0,height,depth, width,height,depth);
59. line(0,0,depth, 0,height,depth);
60. line(width,0,depth, width,height,depth);
61. //corners
62. line(0,0,0, 0,0,depth);
63. line(0,height,0, 0,height,depth);
64. line(width,0,0, width,0,depth);
65. line(width,height,0, width,height,depth);
67. newXmag = mouseX/float(width) * TWO_PI;
68. newYmag = mouseY/float(height) * TWO_PI;
70. float diff = xmag-newXmag;
71. if (abs(diff) > 0.01) {
72. xmag -= diff/4.0;
73. }
75. diff = ymag-newYmag;
76. if (abs(diff) > 0.01) {
77. ymag -= diff/4.0;
78. }
81. // if ((sensorValues[1] > 15) && (sensorValues[1] < 165)) {
82. z = sensorValues[0] / 180 * PI ;
83. x = sensorValues[1] / 180 * PI;
84. // }
86. rotateZ(z);
87. rotateX(x);
89. // Test to see if the shape exceeds the boundaries of the screen
90. // If it does, reverse its direction by multiplying by -1
93. if (xpos > width-size || xpos < 0) {
94. xdirection *= -1;
95. }
96. if (ypos > height-size || ypos < 0) {
97. ydirection *= -1;
98. }
100. if (zpos < -height-size || zpos > 0) { //note that Zaxis goes 'into' the screen
101. zdirection *= -1;
102. }
105. // Draw the shape
107. lights();
108. translate(xpos, ypos, zpos);
110. sphere(size);
112. }
113. float[] sensorValues = new float[sensorCount]; // array to hold the incoming values
115. void serialEvent(Serial myPort) {
116. // read incoming data until you get a newline:
117. String serialString = myPort.readStringUntil('\n');
118. // if the read data is a real string, parse it:
120. if (serialString != null) {
121. //println(serialString);
122. //println(serialString.charAt(serialString.length()-3));
123. // println(serialString.charAt(serialString.length()-2));
124. // split it into substrings on the DELIM character:
125. String[] numbers = split(serialString, DELIM);
126. // convert each subastring into an int
127. if (numbers.length == sensorCount) {
128. for (int i = 0; i < numbers.length; i++) {
129. // make sure you're only reading as many numbers as
130. // you can fit in the array:
131. if (i <= sensorCount) {
132. // trim off any whitespace from the substring:
133. numbers[i] = trim(numbers[i]);
134. sensorValues[i] = float(numbers[i]);
135. }
136. // Things we don't handle in particular can get output to the text window
137. print(serialString);
138. }
139. }
140. }
141. }

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