import javax.microedition.m3g.Appearance;
import javax.microedition.m3g.Fog;
import javax.microedition.m3g.IndexBuffer;
import javax.microedition.m3g.Material;
import javax.microedition.m3g.Transform;
import javax.microedition.m3g.TriangleStripArray;
import javax.microedition.m3g.VertexArray;
import javax.microedition.m3g.VertexBuffer;
/*
 *   Snake 3D by Krisna
 */
public class Snakecube3D {
    short[] vert={
        0,0,0, 0,5,0,  -5,0,0,  -5,5,0,
        
        0,0,-5, 0,5,-5,  0,0,0,  0,5,0 ,
        
        0,5,0, 0,5,-5,  -5,5,0,  -5,5,-5 ,
        
        -5,0,0, -5,5,0,  -5,0,-5,  -5,5,-5 ,
        
        -5,0,-5, -5,5,-5,  0,0,-5,  0,5,-5 ,
        
    };
    byte[] norm = {
        0, 0, 127,    0, 0, 127,    0, 0, 127,    0, 0, 127,
        0, 127, 0,    0, 127, 0,    0, 127, 0,    0, 127, 0,
        0, 127, 0,    0, 127, 0,    0, 127, 0,    0, 127, 0,
        -127, 0, 0,   -127, 0, 0,   -127, 0, 0,   -127, 0, 0,
        0, 0,-127,    0, 0,-127,    0, 0,-127,    0, 0,-127,
    };
    private   int [] stripLen={4,4,4,4,4};
    private Appearance iAppearancecube;
  
    private VertexBuffer iVbcube;
  
    private VertexArray verticeArray;
  
    private IndexBuffer iIbcube;
  
    private VertexArray normArray;
  
    private Material  iMaterial;
  
    private Transform transform;
  
    private  Fog fm;
  
    private int color=0xFF0000;
  
    public Snakecube3D() {
        init();
    }
    public Snakecube3D(short index,int color) {
        for(short i=0;i<vert.length;i+=3) {
            vert[i]=(short)(vert[i]+  5*index);
            //    norm[i]=(byte)(norm[i]+  5*index);
        }
        
        this.color=color;
        init();
    }
    public void  init() {
        transform = new Transform();
        transform.postTranslate(0.0f,0.0f,0.0f);
        verticeArray=new VertexArray(vert.length/3,3,2);
        verticeArray.set(0,vert.length/3,vert);
        normArray = new VertexArray(norm.length / 3, 3, 1);
        normArray.set(0, norm.length/3, norm);
        iVbcube=new VertexBuffer();
        iVbcube.setPositions(verticeArray,1.0f,null);
        iVbcube.setNormals(normArray);
        iIbcube=new TriangleStripArray(0,stripLen);
        iAppearancecube= new Appearance();
        iMaterial=new Material();
        iMaterial.setColor(Material.DIFFUSE,color);
    //    iMaterial.setColor(Material.SPECULAR,color);
        iMaterial.setShininess(10.0f);
        
     /*   fm=new Fog();
        fm.setColor(0xffffff);//white
        fm.setMode(Fog.LINEAR);// type of equation
        fm.setLinear(1,100);// nearest and farest objects to be seen
        fm.setDensity(0.5f);// how much fog*/
        
        iAppearancecube.setMaterial(iMaterial);
        //iAppearancecube.setFog(fm);
    }
    
    
    public void increaseX() {
        
        for(short i=0;i<vert.length;i+=3) {
            vert[i]=(short)(vert[i]+5);
        }
        newVertexarr();
    }
    public void decreaseX() {
        
        for(short i=0;i<vert.length;i+=3) {
            vert[i]=(short)(vert[i]-5);
        }
        newVertexarr();
    }
    public void increaseZ() {
        
        for(short i=2;i<vert.length;i+=3) {
            vert[i]=(short)(vert[i]+5);
        }
        newVertexarr();
    }
    public void decreaseZ() {
        
        for(short i=2;i<vert.length;i+=3) {
            vert[i]=(short)(vert[i]-5);
        }
        newVertexarr();
    }
    
    public void newVertexarr() {
        
        verticeArray=new VertexArray(vert.length/3,3,2);
        verticeArray.set(0,vert.length/3,vert);
        iVbcube=new VertexBuffer();
        iVbcube.setPositions(verticeArray,1.0f,null);
        iVbcube.setNormals(normArray);
        
    }
    public boolean getCheckBound(short dir) {
        
        switch(dir) {
            case 1:    return  vert[35]<=-50;
            case 2: return vert[26]>=50;
            case 3:return vert[33]>=50;
            case 4:return vert[24]<=-50;
        }
        
        return false;
    }
    public short getVertat(short index) {
        return vert[index];
    }
    public boolean getCheckEat(short dir,short x,short  z) {
        
        switch(dir) {
            case 1:
            case 3: return vert[33]==x&&vert[35]==z;
            case 2: return vert[27]==x&&vert[29]==z;
            case 4:return vert[24]==x&&vert[26]==z;
        }
        
        return false;
    }
    public void setVertix(short[] newver) {
        
        for(int i=0;i<vert.length;i++) {
            vert[i]=newver[i];
        }
        newVertexarr();
        
    }
    public boolean getCheckBodyCollision(short dir,Snakecube3D bodypart,int i) {
        
        
        
        switch(dir) {
            case 1:
            case 4: return (vert[33]==bodypart.getVertat((short)33)&&vert[35]==bodypart.getVertat((short)35));
            case 2:
            case 3:return (vert[24]==bodypart.getVertat((short)24)&&vert[26]==bodypart.getVertat((short)26));
        }
        
        return false;
        
    }
    
    public void setIVbcube(VertexBuffer iVbcube) {
        this.iVbcube = iVbcube;
    }
    
    public void setIIbcube(IndexBuffer iIbcube) {
        this.iIbcube = iIbcube;
    }
    
    
    public short[] getVert() {
        return vert;
    }
    
    public VertexBuffer getIVbcube() {
        return iVbcube;
    }
    
    public Appearance getIAppearancecube() {
        return iAppearancecube;
    }
    
    public Transform getTransform() {
        return transform;
    }
    
    public IndexBuffer getIIbcube() {
        return iIbcube;
    }
    
}