func init_() {
pos := []float32{5.0, 5.0, 10.0, 0.0}
red := []float32{0.8, 0.1, 0.0, 1.0}
green := []float32{0.0, 0.8, 0.2, 1.0}
blue := []float32{0.2, 0.2, 1.0, 1.0}
gl.Lightfv(gl.LIGHT0, gl.POSITION, pos)
gl.Enable(gl.CULL_FACE)
gl.Enable(gl.LIGHTING)
gl.Enable(gl.LIGHT0)
gl.Enable(gl.DEPTH_TEST)
/* make the gears */
gear1 = gl.GenLists(1)
gl.NewList(gear1, gl.COMPILE)
gl.Materialfv(gl.FRONT, gl.AMBIENT_AND_DIFFUSE, red)
gear(1.0, 4.0, 1.0, 20, 0.7)
gl.EndList()
gear2 = gl.GenLists(1)
gl.NewList(gear2, gl.COMPILE)
gl.Materialfv(gl.FRONT, gl.AMBIENT_AND_DIFFUSE, green)
gear(0.5, 2.0, 2.0, 10, 0.7)
gl.EndList()
gear3 = gl.GenLists(1)
gl.NewList(gear3, gl.COMPILE)
gl.Materialfv(gl.FRONT, gl.AMBIENT_AND_DIFFUSE, blue)
gear(1.3, 2.0, 0.5, 10, 0.7)
gl.EndList()
gl.Enable(gl.NORMALIZE)
if *printInfo {
print("GL_RENDERER = ", gl.GetString(gl.RENDERER), "\n")
print("GL_VERSION = ", gl.GetString(gl.VERSION), "\n")
print("GL_VENDOR = ", gl.GetString(gl.VENDOR), "\n")
print("GL_EXTENSIONS = ", gl.GetString(gl.EXTENSIONS), "\n")
}
}
func cube(color []float32) {
gl.Materialfv(gl.FRONT, gl.AMBIENT_AND_DIFFUSE, whiteColor)
gl.Color4f(color[0], color[1], color[2], color[3])
// TOP
gl.Begin(gl.TRIANGLE_FAN)
gl.Vertex3f(cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, cubeWidth, cubeWidth)
gl.End()
// Bottom
gl.Begin(gl.TRIANGLE_FAN)
gl.Vertex3f(cubeWidth, -cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, -cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, -cubeWidth)
gl.End()
// Front
gl.Begin(gl.TRIANGLE_FAN)
gl.Vertex3f(cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, cubeWidth)
gl.End()
// Back
gl.Begin(gl.TRIANGLE_FAN)
gl.Vertex3f(cubeWidth, -cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(cubeWidth, cubeWidth, -cubeWidth)
gl.End()
// Left
gl.Begin(gl.TRIANGLE_FAN)
gl.Vertex3f(-cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, cubeWidth)
gl.End()
// Right
gl.Begin(gl.TRIANGLE_FAN)
gl.Vertex3f(cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, -cubeWidth)
gl.End()
//*
gl.Color4f(color[0]/1.2, color[1]/1.2, color[2]/1.2, 1.0)
gl.Begin(gl.LINE_STRIP) // Start Drawing Our Player Using Lines
// TOP
gl.Vertex3f(cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, cubeWidth, cubeWidth)
// Front
gl.Vertex3f(-cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, cubeWidth)
// Bottom
gl.Vertex3f(-cubeWidth, -cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, -cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, -cubeWidth)
// Back
gl.Vertex3f(-cubeWidth, -cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(cubeWidth, cubeWidth, -cubeWidth)
// Right
gl.Vertex3f(cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, cubeWidth)
gl.Vertex3f(cubeWidth, -cubeWidth, -cubeWidth)
// Left
gl.Vertex3f(-cubeWidth, cubeWidth, cubeWidth)
gl.Vertex3f(-cubeWidth, cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, -cubeWidth)
gl.Vertex3f(-cubeWidth, -cubeWidth, cubeWidth)
gl.End()
//*/
}