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3D Control with Mouse

[1 Reply]
- 15-Feb-2013 08:46 AM
- Forum: Programming Questions
Hello,

I'm trying to create a camera in a 3D environment that is controlled by a mouse and the WASD keys. So far i can get it to move, but I tried using spherical coordinates to help me control the direct the camera points with the mouse but it is really glitchy. What am I doing wrong? I also wanted to use the robot class to keep the mouse centered in the screen but that is not working either.
2. import java.awt.AWTException;
3. import java.awt.Robot;
5. Robot robot;
7. void setup() {
8. size(640, 360, P3D);
9. noStroke();
10. fill(204);
11. try{
12. robot = new Robot();
13. } catch (AWTException e){
14. e.printStackTrace();
15. }
16. noCursor();
17. }
18. float playerX = 0;
19. float playerY = -160;
20. float playerZ = 0;
21. float focusX = 0;
22. float focusY = 0;
23. float focusZ = 0;
24. long count = 0;
25. float currentMouseX = 320;
26. float currentMouseY = 180;
27. float gamma = 0;
28. float phi = 0;
29. void draw() {
30. //if(count%3 == 0){
31. gamma += (currentMouseX - mouseX)/300;
32. gamma = (gamma + PI)%(2*PI) - PI;
33. phi += -(currentMouseY - mouseY)/30;
34. phi = (phi + PI)%(2*PI) - PI;
35. focusX = playerX + 10.0*sin(gamma)*cos(phi);
36. focusY = playerY + 10.0*sin(gamma)*sin(phi);
37. focusZ = playerZ + 10.0*cos(gamma);
38. // robot.mouseMove(frame.getLocation().x + width/2, frame.getLocation().y + height/2);
39. currentMouseX = mouseX;
40. currentMouseY = mouseY;
41. //}
42. println(gamma + " " + phi);
43. count++;
44. background(0);
45. lights();
46. pointLight(256, 256, 256, playerX, playerY, playerZ);
47. //spotLight(256, 256, 256, playerX, playerY, playerZ, focusX, focusY, focusZ, PI/2, 2);
48. camera(playerX, playerY, playerZ, focusX, focusY, focusZ, 0, 1, 0);
49. float distanceX = playerX - focusX;
50. float distanceZ = playerZ - focusZ;
51. float distanceXZ = distance2D(playerX, playerZ, focusX, focusZ);
52. if(keyPressed){
53. if(key == 'w' || key == 'W'){
54. playerX -= (distanceX*10)/distanceXZ;
55. playerZ -= (distanceZ*10)/distanceXZ;
56. }
57. if(key == 's' || key == 'S'){
58. playerX += (distanceX*10)/distanceXZ;
59. playerZ += (distanceZ*10)/distanceXZ;
60. }
61. if(key == 'a' || key == 'A'){
62. playerX -= (distanceZ*10)/distanceXZ;
63. playerZ += (distanceX*10)/distanceXZ;
64. }
65. if(key == 'd' || key == 'D'){
66. playerX += (distanceZ*10)/distanceXZ;
67. playerZ -= (distanceX*10)/distanceXZ;
68. }
69. }
71. pushMatrix();
72. translate(0, -80, 0);
73. box(160);
74. popMatrix();
76. pushMatrix();
77. translate(160, -240, 0);
78. box(160);
79. popMatrix();
81. pushMatrix();
82. translate(-5000, 0, -5000);
83. rotateX(PI/2);
84. rect(0,0,10000,10000);
85. popMatrix();
87. /*pushMatrix();
88. translate(playerX + 10,playerY + 80 ,playerZ);
89. rotateZ(PI/3);
90. box(10,160,10);
91. popMatrix();*/
92. }
94. float distance3D(float xa, float ya, float za, float xb, float yb, float zb){
95. return sqrt(square(xa-xb) + square(ya-yb) + square(za-zb));
96. }
97. float distance2D(float xa, float ya, float xb, float yb){
98. return sqrt(square(xa-xb) + square(ya-yb));
99. }
100. float square(float a){
101. return a*a;
102. }

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