Method setupGeometry

samples/FallingGears/src/SceneObjects.cpp:153–225

}

void Island::setupGeometry()
{
	CI_ASSERT( mOuterVerts.size() == 6 && mInnerVerts.size() == 5 );

	// create the body of the island
	{
		Path2d path;
		path.moveTo( mOuterVerts[0] );
		for( int i = 1; i < mOuterVerts.size(); ++i )
			path.lineTo( mOuterVerts[i] );

		mBatchBody = gl::Batch::create( Triangulator( path ).calcMesh(), gl::getStockShader( gl::ShaderDef().color() ) );
	}

	mBumpers.clear();

	const float padding = 4;
	const float crookedPaddingPercent = 0.036f;

	// left base
	{
		Path2d bumper;
		bumper.moveTo( mOuterVerts[0] );
		bumper.lineTo( mOuterVerts[1].x, mOuterVerts[1].y + padding );
		bumper.lineTo( mInnerVerts[1].x, mInnerVerts[1].y + padding );
		bumper.lineTo( mInnerVerts[0] );
		bumper.close();

		addBumper( bumper );
	}

	// left top
	{
		vec2 offsetOuter = ( mOuterVerts[2] - mOuterVerts[1] ) * crookedPaddingPercent;
		vec2 offsetInner = ( vec2( mOuterVerts[2].x, mInnerVerts[2].y ) - mInnerVerts[1] ) * crookedPaddingPercent;

		Path2d bumper;
		bumper.moveTo( mOuterVerts[1] + offsetOuter );
		bumper.lineTo( mOuterVerts[2] );
		bumper.lineTo( mOuterVerts[2].x, mInnerVerts[2].y );
		bumper.lineTo( mInnerVerts[1] + offsetInner );
		bumper.close();

		addBumper( bumper );
	}

	// right top
	{
		vec2 offsetOuter = ( mOuterVerts[3] - mOuterVerts[4] ) * crookedPaddingPercent;
		vec2 offsetInner = ( vec2( mOuterVerts[3].x, mInnerVerts[2].y ) - mInnerVerts[3] ) * crookedPaddingPercent;

		Path2d bumper;
		bumper.moveTo( mOuterVerts[3] );
		bumper.lineTo( mOuterVerts[4] + offsetOuter );
		bumper.lineTo( mInnerVerts[3] + offsetInner );
		bumper.lineTo( mOuterVerts[3].x, mInnerVerts[2].y );
		bumper.close();