Hi guys, I am fairly new to Processing and am working on a project currently which I have run into a problem. I have arrays which display my PNG images right now. Since they are in 3D space, I use the mouseY location to move the camera in and out.
What I want to do is also tie the mouseY value to the number of images the array displays. I plan on having 4 checkpoints on the mouseY values which change the array display values. What I am having trouble is with the mouseY value having no effect on the number of displayed images whatsoever. I need it to happen dynamically as the user moves the mouse but that is not currently happening. Does OpenGL not support dynamically drawing and erasing elements on the screen?
Thanks
Here is my code currently:
Quote:
//Base code taken from 'Space Junk' by Ira Greenberg
import processing.opengl.*;
PImage a, b, c, dd;
float ang;
int oillimitOne = 6;
int waterlimitOne = 3;
int treelimitOne = 15;
int landfilllimitOne = 6;
Oil[]oils = new Oil[oillimitOne];
Water[]waters = new Water[waterlimitOne];
Tree[]trees = new Tree[treelimitOne];
Landfill[]landfills = new Landfill[landfilllimitOne];
void setup(){
size(1024, 768, OPENGL);
background(0);
a = loadImage("gastank.png");
b = loadImage("water.png");
c = loadImage("tree.png");
dd = loadImage("landfill.png");
for (int i = 0; i< oils.length; i++){
oils[i] = new Oil(int(random(-10, 10)), int(random(-10, 10)),
int(random(-10, 10)), int(random(-140, 140)), int(random(-140, 140)),
int(random(-140, 140)));
}
for (int i = 0; i< waters.length; i++){
waters[i] = new Water(int(random(-10, 10)), int(random(-10, 10)),
int(random(-10, 10)), int(random(-140, 140)), int(random(-140, 140)),
int(random(-140, 140)));
}
for (int i = 0; i< trees.length; i++){
trees[i] = new Tree(int(random(-10, 10)), int(random(-10, 10)),
int(random(-10, 10)), int(random(-140, 140)), int(random(-140, 140)),
int(random(-140, 140)));
}
for (int i = 0; i< landfills.length; i++){
landfills[i] = new Landfill(int(random(-10, 10)), int(random(-10, 10)),
int(random(-10, 10)), int(random(-140, 140)), int(random(-140, 140)),
int(random(-140, 140)));
}
}
void draw(){
background(0);
fill(200);
pointLight(51, 102, 255, 65, 60, 100);
pointLight(200, 40, 60, -65, -60, -150);
//raise overall light in scene
ambientLight(90, 90, 10);
translate(mouseX/2, height/2, -10*mouseY);
println(mouseY);
rotateX(radians(ang)/2);
for (int i = 0; i< oils.length; i++){
oils[i].drawOil();}
for (int i = 0; i< waters.length; i++){
waters[i].drawWater();}
for (int i = 0; i< trees.length; i++){
trees[i].drawTree();}
for (int i = 0; i< landfills.length; i++){
landfills[i].drawLandfill();}
//used in rotate function calls above
ang++;
}
class Oil {
//properties
int w, h, d;
int shiftX, shiftY, shiftZ;
//constructor
Oil(int w, int h, int d, int shiftX, int shiftY, int shiftZ){
this.w = w;
this.h = h;
this.d = d;
this.shiftX = shiftX;
this.shiftY = shiftY;
this.shiftZ = shiftZ;
}
void drawOil(){
translate(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ);
image(a, w+shiftX, -h/2 + shiftY);
rotateY(radians(50));
rotateX(radians(30));
rotateZ(radians(25));
}
}
class Water {
//properties
int w, h, d;
int shiftX, shiftY, shiftZ;
//constructor
Water(int w, int h, int d, int shiftX, int shiftY, int shiftZ){
this.w = w;
this.h = h;
this.d = d;
this.shiftX = shiftX;
this.shiftY = shiftY;
this.shiftZ = shiftZ;
}
void drawWater(){
translate(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ);
image(b, w+shiftX, -h/2 + shiftY);
rotateY(radians(50));
rotateX(radians(30));
rotateZ(radians(25));
}
}
class Tree {
//properties
int w, h, d;
int shiftX, shiftY, shiftZ;
//constructor
Tree(int w, int h, int d, int shiftX, int shiftY, int shiftZ){
this.w = w;
this.h = h;
this.d = d;
this.shiftX = shiftX;
this.shiftY = shiftY;
this.shiftZ = shiftZ;
}
void drawTree(){
translate(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ);
image(c, w+shiftX, -h/2 + shiftY);
rotateY(radians(50));
rotateX(radians(30));
rotateZ(radians(25));
}
}
class Landfill {
//properties
int w, h, d;
int shiftX, shiftY, shiftZ;
//constructor
Landfill(int w, int h, int d, int shiftX, int shiftY, int shiftZ){
this.w = w;
this.h = h;
this.d = d;
this.shiftX = shiftX;
this.shiftY = shiftY;
this.shiftZ = shiftZ;
}
void drawLandfill(){
translate(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ);
image(dd, w+shiftX, -h/2 + shiftY);
rotateY(radians(50));
rotateX(radians(30));
rotateZ(radians(25));
}
}
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Manipulating array values and images displayed (Read 619 times)