fix some issues

mapblockaccessor/logger.go

@@ -1,11 +0,0 @@
-package mapblockaccessor
-
-import (
-	"github.com/sirupsen/logrus"
-)
-
-var log *logrus.Entry
-
-func init() {
-	log = logrus.WithFields(logrus.Fields{"prefix": "mapblockaccessor"})
-}

mapblockrenderer/renderer.go

@@ -75,11 +75,11 @@ func addColorComponent(c *color.RGBA, value int) *color.RGBA {
 
 func (r *MapBlockRenderer) Render(pos1, pos2 *coords.MapBlockCoords) (*image.NRGBA, error) {
 	if pos1.X != pos2.X {
-		return nil, errors.New("X does not line up")
+		return nil, errors.New("x does not line up")
 	}
 
 	if pos1.Z != pos2.Z {
-		return nil, errors.New("Z does not line up")
+		return nil, errors.New("z does not line up")
 	}
 
 	renderedMapblocks.Inc()

mapblockrenderer/renderer_test.go

@@ -21,7 +21,7 @@ func TestSimpleRender(t *testing.T) {
 	logrus.SetLevel(logrus.InfoLevel)
 
 	layers := []*layer.Layer{
-		&layer.Layer{
+		{
 			Id:   0,
 			Name: "Base",
 			From: -16,

tilerenderer/renderer_benchmark_test.go

@@ -54,7 +54,7 @@ func BenchmarkTileRender(b *testing.B) {
 	tdb, _ := tiledb.New(tiletmpdir)
 
 	layers := []*layer.Layer{
-		&layer.Layer{
+		{
 			Id:   0,
 			Name: "Base",
 			From: -16,

tilerenderer/renderer_test.go

@@ -54,7 +54,7 @@ func TestTileRender(t *testing.T) {
 	tdb, _ := tiledb.New(tiletmpdir)
 
 	layers := []*layer.Layer{
-		&layer.Layer{
+		{
 			Id:   0,
 			Name: "Base",
 			From: -16,