Handle clicking through transparent blocks.

src/sig/Panel.java

@@ -80,6 +80,7 @@ public class Panel extends JPanel implements Runnable {
         SigRenderer.depthBuffer = new float[width*height];
         SigRenderer.depthBuffer_tri = new Triangle[width*height];
         SigRenderer.translucencyBuffer = new boolean[width*height];
+        SigRenderer.depthBuffer_noTransparency = new float[width*height];
     }
     /**
     * Do your draws in here !!
@@ -101,6 +102,7 @@ public class Panel extends JPanel implements Runnable {
                 SigRenderer.depthBuffer[x+y*width]=0;
                 SigRenderer.depthBuffer_tri[x+y*width]=null;
                 SigRenderer.translucencyBuffer[x+y*width]=false;
+                SigRenderer.depthBuffer_noTransparency[x+y*width]=0;
             }
         }   
 
@@ -223,6 +225,7 @@ public class Panel extends JPanel implements Runnable {
                     } else {
                         tt.unmodifiedTri.nextRenderTime2=System.currentTimeMillis()+200;
                     }
+                    SigRenderer.temp_request=SigRenderer.request;
                     DrawUtils.TexturedTriangle(p, 
                         (int)tt.A.x,(int)tt.A.y,tt.T.u,tt.T.v,tt.T.w,
                         (int)tt.B.x,(int)tt.B.y,tt.U.u,tt.U.v,tt.U.w,

src/sig/SigRenderer.java

@@ -51,6 +51,7 @@ public class SigRenderer implements KeyListener,MouseListener,MouseMotionListene
 
     public static float[] depthBuffer;
     public static Triangle[] depthBuffer_tri;
+    public static float[] depthBuffer_noTransparency;
     public static boolean[] translucencyBuffer;
 
     public static HashMap<TextureType,Texture> blockTextures = new HashMap<TextureType,Texture>();
@@ -59,6 +60,7 @@ public class SigRenderer implements KeyListener,MouseListener,MouseMotionListene
     aHeld=false,sHeld=false,dHeld=false,wHeld=false;
 
     public static MouseEvent request;
+    public static MouseEvent temp_request;
     public static MouseHandler answer;
     public static MouseHandler tempAnswer = null;
 

src/sig/utils/DrawUtils.java

@@ -92,10 +92,15 @@ public class DrawUtils {
                     tex_u=(1.0f-t)*tex_su+t*tex_eu;
                     tex_v=(1.0f-t)*tex_sv+t*tex_ev;
                     tex_w=(1.0f-t)*tex_sw+t*tex_ew;
-                    if (tex_w>SigRenderer.depthBuffer[i*SigRenderer.SCREEN_WIDTH+j]) {
-                        if (SigRenderer.request!=null&&j==SigRenderer.request.getX()&&i==SigRenderer.request.getY()) {
-                            SigRenderer.tempAnswer=new MouseHandler(SigRenderer.request,ref.b);
+                    if (SigRenderer.temp_request!=null) {
+                        if (tex_w>SigRenderer.depthBuffer_noTransparency[i*SigRenderer.SCREEN_WIDTH+j]) {
+                            SigRenderer.depthBuffer_noTransparency[i*SigRenderer.SCREEN_WIDTH+j]=tex_w;
+                            if (j==SigRenderer.temp_request.getX()&&i==SigRenderer.temp_request.getY()) {
+                                SigRenderer.tempAnswer=new MouseHandler(SigRenderer.temp_request,ref.b);
+                            }
                         }
+                    }
+                    if (tex_w>SigRenderer.depthBuffer[i*SigRenderer.SCREEN_WIDTH+j]) {
                         int col = texture.getColor(tex_u/tex_w,tex_v/tex_w,colorMult/255f);
                         if (((col&0xFF000000)>>>24)!=0) {
                             if (((col&0xFF000000)>>>24)!=255) {
@@ -163,10 +168,15 @@ public class DrawUtils {
                     tex_u=(1.0f-t)*tex_su+t*tex_eu;
                     tex_v=(1.0f-t)*tex_sv+t*tex_ev;
                     tex_w=(1.0f-t)*tex_sw+t*tex_ew;
-                    if (tex_w>SigRenderer.depthBuffer[i*SigRenderer.SCREEN_WIDTH+j]) {
-                        if (SigRenderer.request!=null&&j==SigRenderer.request.getX()&&i==SigRenderer.request.getY()) {
-                            SigRenderer.tempAnswer=new MouseHandler(SigRenderer.request,ref.b);
+                    if (SigRenderer.temp_request!=null) {
+                        if (tex_w>SigRenderer.depthBuffer_noTransparency[i*SigRenderer.SCREEN_WIDTH+j]) {
+                            SigRenderer.depthBuffer_noTransparency[i*SigRenderer.SCREEN_WIDTH+j]=tex_w;
+                            if (j==SigRenderer.temp_request.getX()&&i==SigRenderer.temp_request.getY()) {
+                                SigRenderer.tempAnswer=new MouseHandler(SigRenderer.temp_request,ref.b);
+                            }
                         }
+                    }
+                    if (tex_w>SigRenderer.depthBuffer[i*SigRenderer.SCREEN_WIDTH+j]) {
                         int col = texture.getColor(tex_u/tex_w,tex_v/tex_w,colorMult/255f);
                         if (((col&0xFF000000)>>>24)!=0) {
                             if (((col&0xFF000000)>>>24)!=255) {