/*
* Copyright (C) 2014 Benny Bobaganoosh
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.base.engine.core;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.util.ArrayList;
import com.base.engine.rendering.Vertex;
import org.lwjgl.BufferUtils;
public class Util
{
public static FloatBuffer CreateFloatBuffer(int size)
{
return BufferUtils.createFloatBuffer(size);
}
public static IntBuffer CreateIntBuffer(int size)
{
return BufferUtils.createIntBuffer(size);
}
public static ByteBuffer CreateByteBuffer(int size)
{
return BufferUtils.createByteBuffer(size);
}
public static IntBuffer CreateFlippedBuffer(int... values)
{
IntBuffer buffer = CreateIntBuffer(values.length);
buffer.put(values);
buffer.flip();
return buffer;
}
public static FloatBuffer CreateFlippedBuffer(Vertex[] vertices)
{
FloatBuffer buffer = CreateFloatBuffer(vertices.length * Vertex.SIZE);
for(int i = 0; i < vertices.length; i++)
{
buffer.put(vertices[i].GetPos().GetX());
buffer.put(vertices[i].GetPos().GetY());
buffer.put(vertices[i].GetPos().GetZ());
buffer.put(vertices[i].GetTexCoord().GetX());
buffer.put(vertices[i].GetTexCoord().GetY());
buffer.put(vertices[i].GetNormal().GetX());
buffer.put(vertices[i].GetNormal().GetY());
buffer.put(vertices[i].GetNormal().GetZ());
buffer.put(vertices[i].GetTangent().GetX());
buffer.put(vertices[i].GetTangent().GetY());
buffer.put(vertices[i].GetTangent().GetZ());
}
buffer.flip();
return buffer;
}
public static FloatBuffer CreateFlippedBuffer(Matrix4f value)
{
FloatBuffer buffer = CreateFloatBuffer(4 * 4);
for(int i = 0; i < 4; i++)
for(int j = 0; j < 4; j++)
buffer.put(value.Get(i, j));
buffer.flip();
return buffer;
}
public static String[] RemoveEmptyStrings(String[] data)
{
ArrayList<String> result = new ArrayList<String>();
for(int i = 0; i < data.length; i++)
if(!data[i].equals(""))
result.add(data[i]);
String[] res = new String[result.size()];
result.toArray(res);
return res;
}
public static int[] ToIntArray(Integer[] data)
{
int[] result = new int[data.length];
for(int i = 0; i < data.length; i++)
result[i] = data[i].intValue();
return result;
}
}