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Add comment, remove unused var #3

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Add comment, remove unused var #3

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10 changes: 8 additions & 2 deletions examples/glfw3/bouncing_balls/bouncing_balls.go
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Original file line number Diff line number Diff line change
@@ -1,3 +1,10 @@
/*
bouncing_balls is a simple non-interactive program showing use of the chipmunk package.

The code is based on pymunk's bouncing_balls.py example.

Needs glew and gflw2 headers to build.
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gflw2 -> glfw3

*/
package main

import (
Expand All @@ -19,10 +26,9 @@ var (
space *chipmunk.Space
balls []*chipmunk.Shape
staticLines []*chipmunk.Shape
deg2rad = math.Pi / 180
)

// drawCircle draws a circle for the specified radius, rotation angle, and the specified number of sides
// drawCircle draws a circle for the specified radius and number of sides
func drawCircle(radius float64, sides int) {
gl.Begin(gl.LINE_LOOP)
for a := 0.0; a < 2*math.Pi; a += (2 * math.Pi / float64(sides)) {
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