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Using "if" to set variable

[2 Replies]
- 08-Nov-2012 03:43 PM
- Forum: Programming Questions
I want to use "if" to set variables according to the position of the mouse.
However, it seems to limit the accessability of the variable and I don't know what to do!

Please help me

I am trying to draw a shape that deforms randomly with the "random" function. But I want to deform the shape more as the mouse approaches the right hand side of the sketch by setting zones on the sketch.

Here is my code..

int [] [] points = {{1, 2}, {2, 0}, {3, 2}, {4, 0}, {5, 2}, {6, 0}, {7,2}, {8, 0}, {9, 2}, {8, 4}, {7, 2}, {6, 4}, {5, 2}, {4, 4}, {3,2}, {2, 4}, {1, 2}, {0, 4}, {1, 6}, {2, 4}, {3, 6}, {4, 4}, {5, 6}, {6, 4}, {7,6}, {8, 4}};

float [] rx = new float [points.length] ;

float [] ry = new float [points.length] ;

float scalelength = 40;

void setup() {

size (500, 300);

noFill ();

stroke(255);

strokeWeight(.5);

smooth ();

}

void draw() {

background (150);

if (mouseX < width/7) {

float rrange_x1 = -40;

}

float rrange_x1 = -0;

float rrange_x2 = -1*rrange_x1;

float rrange_y1 = -20;

float rrange_y2 = -1*rrange_y1;

for (int i = 0; i < 26 ; i++) {

rx [i] = random(rrange_x1, rrange_x2);

ry [i] = random(rrange_y1, rrange_y2);

}

beginShape(TRIANGLE_STRIP);

for (int i = 0 ; i < 9; i++) {

vertex (points [i] [0]*scalelength + rx[i], points [i] [1]*scalelength + ry[i]);

}

endShape();

}

void mousePressed() {

redraw ();

}

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