What does this certain function refer to?
0
I was analyzing this piece of code (new to javascript) that is part of a simple flappy bird game but cant figure out what does this function this.x = width refer to. Exactly what does the width mean.
Some context
function Pipe() {
this.spacing = 175;
this.top = random(height / 6, 3 / 4 * height);
this.bottom = height - (this.top + this.spacing);
this.x = width;
this.w = 80;
this.speed = 4 ;
this.highlight = false;
this.hits = function(bird) {
if (bird.y < this.top || bird.y > height - this.bottom) {
if (bird.x > this.x && bird.x < this.x + this.w) {
this.highlight = true;
return true;
}
}
this.highlight = false;
return false;
}
this.show = function() {
fill(255);
if (this.highlight) {
fill(255, 0, 0);
}
rect(this.x, 0, this.w, this.top);
rect(this.x, height-this.bottom, this.w, this.bottom);
}
this.update = function() {
this.x -= this.speed;
}
this.offscreen = function() {
if (this.x < -this.w) {
return true;
} else {
return false;
}
}
}I would really appreciate if someone could help me with this one.
javascript function
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
asked Nov 12 at 20:21
Samu Kallio
1
add a comment |
0
I was analyzing this piece of code (new to javascript) that is part of a simple flappy bird game but cant figure out what does this function this.x = width refer to. Exactly what does the width mean.
Some context
function Pipe() {
this.spacing = 175;
this.top = random(height / 6, 3 / 4 * height);
this.bottom = height - (this.top + this.spacing);
this.x = width;
this.w = 80;
this.speed = 4 ;
this.highlight = false;
this.hits = function(bird) {
if (bird.y < this.top || bird.y > height - this.bottom) {
if (bird.x > this.x && bird.x < this.x + this.w) {
this.highlight = true;
return true;
}
}
this.highlight = false;
return false;
}
this.show = function() {
fill(255);
if (this.highlight) {
fill(255, 0, 0);
}
rect(this.x, 0, this.w, this.top);
rect(this.x, height-this.bottom, this.w, this.bottom);
}
this.update = function() {
this.x -= this.speed;
}
this.offscreen = function() {
if (this.x < -this.w) {
return true;
} else {
return false;
}
}
}I would really appreciate if someone could help me with this one.
javascript function
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
asked Nov 12 at 20:21
Samu Kallio
1
1
The snippet is incomplete, so it's rather hard to say. If you tried to run that you'd get an error.
– Jared Smith
Nov 12 at 20:27
add a comment |
0
0
0
I was analyzing this piece of code (new to javascript) that is part of a simple flappy bird game but cant figure out what does this function this.x = width refer to. Exactly what does the width mean.
Some context
function Pipe() {
this.spacing = 175;
this.top = random(height / 6, 3 / 4 * height);
this.bottom = height - (this.top + this.spacing);
this.x = width;
this.w = 80;
this.speed = 4 ;
this.highlight = false;
this.hits = function(bird) {
if (bird.y < this.top || bird.y > height - this.bottom) {
if (bird.x > this.x && bird.x < this.x + this.w) {
this.highlight = true;
return true;
}
}
this.highlight = false;
return false;
}
this.show = function() {
fill(255);
if (this.highlight) {
fill(255, 0, 0);
}
rect(this.x, 0, this.w, this.top);
rect(this.x, height-this.bottom, this.w, this.bottom);
}
this.update = function() {
this.x -= this.speed;
}
this.offscreen = function() {
if (this.x < -this.w) {
return true;
} else {
return false;
}
}
}I would really appreciate if someone could help me with this one.
javascript function
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
asked Nov 12 at 20:21
Samu Kallio
1
I was analyzing this piece of code (new to javascript) that is part of a simple flappy bird game but cant figure out what does this function this.x = width refer to. Exactly what does the width mean.
Some context
function Pipe() {
this.spacing = 175;
this.top = random(height / 6, 3 / 4 * height);
this.bottom = height - (this.top + this.spacing);
this.x = width;
this.w = 80;
this.speed = 4 ;
this.highlight = false;
this.hits = function(bird) {
if (bird.y < this.top || bird.y > height - this.bottom) {
if (bird.x > this.x && bird.x < this.x + this.w) {
this.highlight = true;
return true;
}
}
this.highlight = false;
return false;
}
this.show = function() {
fill(255);
if (this.highlight) {
fill(255, 0, 0);
}
rect(this.x, 0, this.w, this.top);
rect(this.x, height-this.bottom, this.w, this.bottom);
}
this.update = function() {
this.x -= this.speed;
}
this.offscreen = function() {
if (this.x < -this.w) {
return true;
} else {
return false;
}
}
}I would really appreciate if someone could help me with this one.
function Pipe() {
this.spacing = 175;
this.top = random(height / 6, 3 / 4 * height);
this.bottom = height - (this.top + this.spacing);
this.x = width;
this.w = 80;
this.speed = 4 ;
this.highlight = false;
this.hits = function(bird) {
if (bird.y < this.top || bird.y > height - this.bottom) {
if (bird.x > this.x && bird.x < this.x + this.w) {
this.highlight = true;
return true;
}
}
this.highlight = false;
return false;
}
this.show = function() {
fill(255);
if (this.highlight) {
fill(255, 0, 0);
}
rect(this.x, 0, this.w, this.top);
rect(this.x, height-this.bottom, this.w, this.bottom);
}
this.update = function() {
this.x -= this.speed;
}
this.offscreen = function() {
if (this.x < -this.w) {
return true;
} else {
return false;
}
}
} function Pipe() {
this.spacing = 175;
this.top = random(height / 6, 3 / 4 * height);
this.bottom = height - (this.top + this.spacing);
this.x = width;
this.w = 80;
this.speed = 4 ;
this.highlight = false;
this.hits = function(bird) {
if (bird.y < this.top || bird.y > height - this.bottom) {
if (bird.x > this.x && bird.x < this.x + this.w) {
this.highlight = true;
return true;
}
}
this.highlight = false;
return false;
}
this.show = function() {
fill(255);
if (this.highlight) {
fill(255, 0, 0);
}
rect(this.x, 0, this.w, this.top);
rect(this.x, height-this.bottom, this.w, this.bottom);
}
this.update = function() {
this.x -= this.speed;
}
this.offscreen = function() {
if (this.x < -this.w) {
return true;
} else {
return false;
}
}
}javascript function
javascript function
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
asked Nov 12 at 20:21
Samu Kallio
1
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
asked Nov 12 at 20:21
Samu Kallio
1
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
edited Nov 12 at 20:25
ODYN-Kon
2,0841625
2,0841625
asked Nov 12 at 20:21
Samu Kallio
1
asked Nov 12 at 20:21
Samu Kallio
1
asked Nov 12 at 20:21
Samu Kallio
1
1
1
The snippet is incomplete, so it's rather hard to say. If you tried to run that you'd get an error.
– Jared Smith
Nov 12 at 20:27
add a comment |
1
The snippet is incomplete, so it's rather hard to say. If you tried to run that you'd get an error.
– Jared Smith
Nov 12 at 20:27
1
1
The snippet is incomplete, so it's rather hard to say. If you tried to run that you'd get an error.
– Jared Smith
Nov 12 at 20:27
The snippet is incomplete, so it's rather hard to say. If you tried to run that you'd get an error.
– Jared Smith
Nov 12 at 20:27
add a comment |
1 Answer
1
active
oldest
votes
4
In this case, width is referencing a variable that must have been defined outside of Pipe() function. Same goes for height.
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
add a comment |
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1 Answer
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4
In this case, width is referencing a variable that must have been defined outside of Pipe() function. Same goes for height.
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
add a comment |
4
In this case, width is referencing a variable that must have been defined outside of Pipe() function. Same goes for height.
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
add a comment |
4
4
4
In this case, width is referencing a variable that must have been defined outside of Pipe() function. Same goes for height.
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
In this case, width is referencing a variable that must have been defined outside of Pipe() function. Same goes for height.
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
answered Nov 12 at 20:24
ODYN-Kon
2,0841625
2,0841625
add a comment |
add a comment |
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The snippet is incomplete, so it's rather hard to say. If you tried to run that you'd get an error.
– Jared Smith
Nov 12 at 20:27