/*
* Can first format be used where second is expected
*/
public static boolean moreSpecific(VertexFormat first, VertexFormat second) {
int size = first.getNextOffset();
if (size != second.getNextOffset()) return false;
int padding = 0;
int j = 0;
for (VertexFormatElement firstAttr : (List<VertexFormatElement>) first.getElements()) {
while (j < second.getElementCount() && second.getElement(j).getUsage() == EnumUsage.PADDING) {
padding += second.getElement(j++).getSize();
}
if (j >= second.getElementCount() && padding == 0) {
// if no padding is left, but there are still elements in first (we're processing one) - it
// doesn't fit
return false;
}
if (padding == 0) {
// no padding - attributes have to match
VertexFormatElement secondAttr = second.getElement(j++);
if (firstAttr.getIndex() != secondAttr.getIndex()
|| firstAttr.getElementCount() != secondAttr.getElementCount()
|| firstAttr.getType() != secondAttr.getType()
|| firstAttr.getUsage() != secondAttr.getUsage()) {
return false;
}
} else {
// padding - attribute should fit in it
padding -= firstAttr.getSize();
if (padding < 0) return false;
}
}
if (padding != 0 || j != second.getElementCount()) return false;
return true;
}
private float[] getFor(VertexFormatElement element) {
EnumUsage usage = element.getUsage();
if (usage == EnumUsage.POSITION) {
return position;
} else if (usage == EnumUsage.NORMAL) {
return normal;
} else if (usage == EnumUsage.COLOR) {
return colour;
} else if (usage == EnumUsage.UV) {
if (element.getIndex() == 0) {
return uv;
} else if (element.getIndex() == 1) {
return light;
}
}
// Otherwise... thats not good.
String s = element.toString();
if (!failedStrings.contains(s)) {
failedStrings.add(s);
TrainCraft.trainCraftLog.warn("Element failed: " + s);
}
return new float[element.getElementCount()];
}
public void putIntoBakedQuadBuilder(
UnpackedBakedQuad.Builder builder, TextureAtlasSprite sprite) {
Vertex transformed = getTransformedVertex();
Tuple4f positionBuffer = new Vector4f();
transformed.getPosition(positionBuffer);
Tuple3f normalBuffer = new Vector3f();
transformed.getNormal(normalBuffer);
Tuple2f uvBuffer = new Vector2f();
transformed.getUV(uvBuffer);
VertexFormat vertexFormat = builder.getVertexFormat();
int elementCount = vertexFormat.getElementCount();
for (int e = 0; e < elementCount; e++) {
VertexFormatElement element = vertexFormat.getElement(e);
switch (element.getUsage()) {
case POSITION:
builder.put(e, positionBuffer.x, positionBuffer.z, -positionBuffer.y, positionBuffer.w);
break;
case NORMAL:
builder.put(e, normalBuffer.x, normalBuffer.z, -normalBuffer.y, 0);
break;
case UV:
if (element.getIndex() != 0) break;
builder.put(
e,
sprite.getInterpolatedU(uvBuffer.x * 16),
sprite.getInterpolatedV(uvBuffer.y * 16),
0,
1);
break;
case COLOR:
builder.put(e, 1, 1, 1, 1);
break;
default:
builder.put(e);
}
}
}
