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Topic: newbie syntax question (Read 307 times) |
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whiteflea
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newbie syntax question
« on: Sep 7th, 2004, 9:13pm » |
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toxis code:
Code:
public class Particle {
float xpos,ypos;
float xspeed,yspeed;
int width, height;
Particle(float x, float y, float xs, float ys, int w, int h) {
xpos=x;
ypos=y;
xspeed=xs;
yspeed=ys;
width=w;
height=h;
}
void update() {
xpos+=xspeed;
ypos+=yspeed;
if (xpos<0) xpos+=width;
else if (xpos>=width) xpos-=width;
if (ypos<0) ypos+=height;
else if (ypos>=height) ypos-=height;
}
}
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reffering to this: http://processing.org/discourse/yabb/board_general_action_displ_ay_num_1072722668.html
Question:
Why is in Prticle Class x,y in float and not in int x,y coordinates are stored in int, because pixels are int. ins't it
ps:im divin into oop right now. and i like the feeling! 
cheers whiteflea
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==================================
Software is mindcontrol - get some
==================================
Shut up or I will replace you with
a very small processing script
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fjen
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Re: newbie syntax question
« Reply #1 on: Sep 8th, 2004, 4:42pm » |
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hmm. it totaly depends on what you wanna do with it later on ... having them stored as int would be a 1:1 representation of the coordinates on screen .. but you might wanna render them using wu-pixels (antialiased representation, like with smooth lines in processing) then you'd need somehow more precise coordiantes .. of course that's just a guess, i'm sure toxi knows best.
wupixels:
http://freespace.virgin.net/hugo.elias/graphics/x_wupixl.htm
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| « Last Edit: Sep 8th, 2004, 4:43pm by fjen » |
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