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Gravity update to bird.js #45

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merged 3 commits into from
Apr 9, 2018
Merged

Gravity update to bird.js #45

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ce857ea
Update bird.js
buensons Apr 1, 2018
acef9ab
make delay a boolean
buensons Apr 2, 2018
58d149f
Update bird.js
buensons Apr 3, 2018
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11 changes: 8 additions & 3 deletions bird.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ class Bird {
this.x = 64;

this.gravity = 0.6;
this.lift = -15;
this.delay = 0;
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Would a boolean flag variable make more sense here?

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@buensons buensons Apr 2, 2018 •
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Yes, you are right. A boolean variable would work, and it's going ot be easier to read. Is it better now?

this.velocity = 0;

this.icon = birdSprite;
Expand All @@ -26,12 +26,17 @@ class Bird {
}

up() {
this.velocity += this.lift;
if (this.delay > 0)
this.delay--;

if (this.delay <= 0) {
this.velocity = -7;
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Creating a global variable for the -7 would be a good thing to do. It's easier to modify static values when they are global.

this.delay = 1;
}
}

update() {
this.velocity += this.gravity;
this.velocity *= 0.9;
this.y += this.velocity;

if (this.y >= height - this.height / 2) {
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