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ae7b1ad056
processing-js 0.4 has been merged in some relevant parts basic and topic scripts added for test color handling fixed, more scripts show up now
64 lines
1.6 KiB
Plaintext
64 lines
1.6 KiB
Plaintext
// constants
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int Y_AXIS = 1;
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int X_AXIS = 2;
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void setup(){
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size(200, 200);
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// create some gradients
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// background
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color b1 = color(190, 190, 190);
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color b2 = color(20, 20, 20);
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//setGradient(0, 0, width, height, b1, b2, Y_AXIS);
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//center squares
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color c1 = color(255, 120, 0);
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color c2 = color(10, 45, 255);
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color c3 = color(10, 255, 15);
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color c4 = color(125, 2, 140);
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color c5 = color(255, 255, 0);
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color c6 = color(25, 255, 200);
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setGradient(25, 25, 75, 75, c1, c2, Y_AXIS);
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setGradient(100, 25, 75, 75, c3, c4, X_AXIS);
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setGradient(25, 100, 75, 75, c2, c5, X_AXIS);
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setGradient(100, 100, 75, 75, c4, c6, Y_AXIS);
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}
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void setGradient(int x, int y, float w, float h, color c1, color c2, int axis ){
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// calculate differences between color components
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float deltaR = red(c2)-red(c1);
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float deltaG = green(c2)-green(c1);
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float deltaB = blue(c2)-blue(c1);
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// choose axis
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if(axis == Y_AXIS){
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/*nested for loops set pixels
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in a basic table structure */
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// column
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for (int i=x; i<=(x+w); i++){
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// row
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for (int j = y; j<=(y+h); j++){
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color c = color(
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(red(c1)+(j-y)*(deltaR/h)),
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(green(c1)+(j-y)*(deltaG/h)),
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(blue(c1)+(j-y)*(deltaB/h))
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);
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set(i, j, c);
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}
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}
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}
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else if(axis == X_AXIS){
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// column
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for (int i=y; i<=(y+h); i++){
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// row
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for (int j = x; j<=(x+w); j++){
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color c = color(
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(red(c1)+(j-x)*(deltaR/h)),
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(green(c1)+(j-x)*(deltaG/h)),
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(blue(c1)+(j-x)*(deltaB/h))
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);
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set(j, i, c);
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}
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}
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}
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}
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