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sketchpad drawing problems

[3 Replies]
- 10-Jun-2012 10:29 PM
- Forum: Programming Questions
I'm quite new to coding and using Processing, but I've currently came up with this. It draws a shape when I press the buttons which I binded it to, but when I click the palette to change the colour, it also draws under the palette. Is there a way to prevent this?
Also when I try to increase or decrease the size by pressing UP or DOWN, the drawing tool just stops and I have to press it again for it to work. How can I get it to keep the drawing tool when I press it?
2. int row = 1;
3. int col = 10;
4. int shapeSize = 150;
5. color mouseCol = color(0);
6. Box[][] palette = new Box[col][row];
7. color[] boxCol = new color[10];
8. float targetX, targetY;
9. float penX, penY, ppenX, ppenY;
13. void setup(){
14. size(500,500);
15. background(255);
16. noStroke();
17. smooth();
19. for (int i=0; i<col; i++) {
20. for (int j=0; j<row; j++) {
21. palette[i][j] = new Box(3+i*25,3+j*20,20,20,2*j +i);
22. }
23. }
25. boxCol[0] = color(0); // D
26. boxCol[1] = color(255); // White
27. boxCol[2] = color(128); // Grey
28. boxCol[3] = color(255, 0, 0); // Red
29. boxCol[4] = color(255, 106, 0); // Orange
30. boxCol[5] = color(255, 216, 0); // Yellow
31. boxCol[6] = color(0, 255, 33); // Green
32. boxCol[7] = color(0, 216, 255); // Blue
33. boxCol[8] = color(111, 0, 255); // Indigo
34. boxCol[9] = color(143, 0, 255); // Violet
36. }
37. void draw(){
38. for (int i=0; i<col; i++) {
39. for (int j=0; j<row; j++) {
40. palette[i][j].display();
41. checkMouseOver(palette[i][j]);
42. }
43. }
44. if (key == 'v'){
45. if (penX != targetX || penY != targetY) {
46. ppenX = penX;
47. ppenY = penY;
48. penX = penX + 0.05 * (targetX - penX);
49. penY = penY + 0.05 * (targetY - penY);
50. stroke(mouseCol);
51. line(ppenX, ppenY, penX, penY);
52. }
53. }
54. }
55. void keyPressed() {
56. if (key = CODED){
57. if (keyCode == UP) {
58. shapeSize = shapeSize + 15;
59. }
60. }
61. if (key = CODED){
62. if (keyCode == DOWN){
63. shapeSize = shapeSize - 15;
64. }
65. }
66. }
68. void mousePressed(){
70. if (key == 'z') { // To draw an arc
71. noStroke();
72. fill(mouseCol);
73. arc(mouseX, mouseY, shapeSize, shapeSize, PI, TWO_PI);
74. }
75. if (key == 'x') { // To draw a circle
76. noStroke();
77. fill(mouseCol);
78. ellipse(mouseX, mouseY, shapeSize, shapeSize);
79. }
80. if (key == 'c') { // To draw a square
81. noStroke();
82. fill(mouseCol);
83. rectMode(CENTER);
84. rect(mouseX, mouseY, shapeSize, shapeSize);
85. }
88. targetX = mouseX;
89. targetY = mouseY;
90. penX = targetX;
91. penY = targetY;
92. ppenX = penX;
93. ppenY = penY;
94. }
96. void mouseDragged() {
97. targetX = mouseX;
98. targetY = mouseY;
99. }
101. void checkMouseOver(Box c) {
102. if (mousePressed) {
103. if (mouseButton == LEFT && mouseX > c.x && mouseX < c.x+c.w && mouseY > c.y && mouseY < c.y+c.h) {
104. mouseCol = (get(mouseX,mouseY));
105. }
106. }
107. }
109. class Box {
110. float x,y,w,h;
111. int c;
113. Box (float tempX, float tempY, float tempW, float tempH, int tempC) {
114. x = tempX;
115. y = tempY;
116. w = tempW;
117. h = tempH;
118. c = tempC;
119. }
120. void display() {
121. stroke(0);
122. rectMode(CORNER);
123. strokeWeight(3);
124. fill(boxCol[c]);
125. rect(x,y,w,h);
126. }
127. }

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