2020-03-08 13:34:52 +01:00

87 lines
2.7 KiB
Java

package com.hbm.render.loader;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.util.Vec3;
import net.minecraftforge.client.model.obj.TextureCoordinate;
import net.minecraftforge.client.model.obj.Vertex;
@SideOnly(Side.CLIENT)
public class S_Face {
public int[] verticesID;
public Vertex[] vertices;
public Vertex[] vertexNormals;
public Vertex faceNormal;
public TextureCoordinate[] textureCoordinates;
/*public S_Face copy() {
S_Face f = new S_Face();
return f;
}*/
public void addFaceForRender(Tessellator tessellator) {
addFaceForRender(tessellator, 0.0F);
}
public void addFaceForRender(Tessellator tessellator, float textureOffset) {
if (this.faceNormal == null) {
this.faceNormal = calculateFaceNormal();
}
tessellator.setNormal(this.faceNormal.x, this.faceNormal.y, this.faceNormal.z);
float averageU = 0.0F;
float averageV = 0.0F;
if ((this.textureCoordinates != null) && (this.textureCoordinates.length > 0)) {
for (int i = 0; i < this.textureCoordinates.length; i++) {
averageU += this.textureCoordinates[i].u;
averageV += this.textureCoordinates[i].v;
}
averageU /= this.textureCoordinates.length;
averageV /= this.textureCoordinates.length;
}
for (int i = 0; i < this.vertices.length; i++) {
if ((this.textureCoordinates != null) && (this.textureCoordinates.length > 0)) {
float offsetU = textureOffset;
float offsetV = textureOffset;
if (this.textureCoordinates[i].u > averageU) {
offsetU = -offsetU;
}
if (this.textureCoordinates[i].v > averageV) {
offsetV = -offsetV;
}
if ((this.vertexNormals != null) && (i < this.vertexNormals.length)) {
tessellator.setNormal(this.vertexNormals[i].x, this.vertexNormals[i].y, this.vertexNormals[i].z);
}
tessellator.addVertexWithUV(this.vertices[i].x, this.vertices[i].y, this.vertices[i].z, this.textureCoordinates[i].u + offsetU, this.textureCoordinates[i].v + offsetV);
} else {
tessellator.addVertex(this.vertices[i].x, this.vertices[i].y, this.vertices[i].z);
}
}
}
public Vertex calculateFaceNormal() {
Vec3 v1 = Vec3.createVectorHelper(this.vertices[1].x - this.vertices[0].x, this.vertices[1].y - this.vertices[0].y, this.vertices[1].z - this.vertices[0].z);
Vec3 v2 = Vec3.createVectorHelper(this.vertices[2].x - this.vertices[0].x, this.vertices[2].y - this.vertices[0].y, this.vertices[2].z - this.vertices[0].z);
Vec3 normalVector = null;
normalVector = v1.crossProduct(v2).normalize();
return new Vertex((float) normalVector.xCoord, (float) normalVector.yCoord, (float) normalVector.zCoord);
}
}