Merge branch 'master' into py-package

overviewer_core/chunk.py

@@ -114,10 +114,10 @@ def get_tileentity_data(level):
     return data
 
 # This set holds blocks ids that can be seen through, for occlusion calculations
-transparent_blocks = set([ 0,  6,  8,  9, 18, 20, 26, 27, 28, 30, 37, 38, 39, 40,
+transparent_blocks = set([ 0,  6,  8,  9, 18, 20, 26, 27, 28, 30, 31, 32, 37, 38,
-                          44, 50, 51, 52, 53, 55, 59, 63, 64, 65, 66, 67, 68, 69,
+                          39, 40, 44, 50, 51, 52, 53, 55, 59, 63, 64, 65, 66, 67,
-                          70, 71, 72, 74, 75, 76, 77, 78, 79, 81, 83, 85, 90, 92,
+                          68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 81, 83, 85, 
-                          93, 94])
+                          90, 92, 93, 94, 96])
 
 # This set holds block ids that are solid blocks
 solid_blocks = set([1, 2, 3, 4, 5, 7, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,

overviewer_core/src/iterate.c

@@ -160,13 +160,17 @@ generate_pseudo_data(RenderState *state, unsigned char ancilData) {
         return ancilData;
     } else if (state->block == 9) { /* water */
         /* an aditional bit for top is added to the 4 bits of check_adjacent_blocks */
-        if ((ancilData == 0) || (ancilData >= 10)) { /* static water, only top, and unkown ancildata values */
+        if (ancilData == 0) { /* static water */
+            if ((z != 127) && (getArrayByte3D(state->blocks, x, y, z+1) == 9)) {
+                data = 0;
+            } else { 
                 data = 16;
+            }
             return data; /* = 0b10000 */
         } else if ((ancilData > 0) && (ancilData < 8)) { /* flowing water */
             data = (check_adjacent_blocks(state, x, y, z, state->block) ^ 0x0f) | 0x10;
             return data;
-        } else if ((ancilData == 8) || (ancilData == 9)) { /* falling water */
+        } else if (ancilData >= 8) { /* falling water */
             data = (check_adjacent_blocks(state, x, y, z, state->block) ^ 0x0f);
             return data;
         }
@@ -289,7 +293,6 @@ PyObject*
 chunk_render(PyObject *self, PyObject *args) {
     RenderState state;
 
-    PyObject *blockdata_expanded; 
     int xoff, yoff;
     
     PyObject *imgsize, *imgsize0_py, *imgsize1_py;
@@ -307,7 +310,7 @@ chunk_render(PyObject *self, PyObject *args) {
                 
     PyObject *t = NULL;
     
-    if (!PyArg_ParseTuple(args, "OOiiO",  &state.self, &state.img, &xoff, &yoff, &blockdata_expanded))
+    if (!PyArg_ParseTuple(args, "OOiiO",  &state.self, &state.img, &xoff, &yoff, &state.blockdata_expanded))
         return NULL;
     
     /* fill in important modules */
@@ -398,7 +401,7 @@ chunk_render(PyObject *self, PyObject *args) {
                 } else {
                     PyObject *tmp;
                     
-                    unsigned char ancilData = getArrayByte3D(blockdata_expanded, state.x, state.y, state.z);
+                    unsigned char ancilData = getArrayByte3D(state.blockdata_expanded, state.x, state.y, state.z);
                     if ((state.block == 85) || (state.block == 9) || (state.block == 55) || (state.block == 54) || (state.block == 2) || (state.block == 90)) {
                         ancilData = generate_pseudo_data(&state, ancilData);
                     }
@@ -417,14 +420,15 @@ chunk_render(PyObject *self, PyObject *args) {
                 /* if we found a proper texture, render it! */
                 if (t != NULL && t != Py_None)
                 {
-                    PyObject *src, *mask;
+                    PyObject *src, *mask, *mask_light;
                     src = PyTuple_GetItem(t, 0);
                     mask = PyTuple_GetItem(t, 1);
+                    mask_light = PyTuple_GetItem(t, 2);
 
                     if (mask == Py_None)
                         mask = src;
                     
-                    rendermode->draw(rm_data, &state, src, mask);
+                    rendermode->draw(rm_data, &state, src, mask, mask_light);
                 }               
             }
             

overviewer_core/src/overviewer.h

@@ -26,7 +26,7 @@
 
 // increment this value if you've made a change to the c extesion
 // and want to force users to rebuild
-#define OVERVIEWER_EXTENSION_VERSION 6
+#define OVERVIEWER_EXTENSION_VERSION 7
 
 /* Python PIL, and numpy headers */
 #include <Python.h>
@@ -70,6 +70,7 @@ typedef struct {
     /* the block position and type, and the block array */
     int x, y, z;
     unsigned char block;
+    PyObject *blockdata_expanded;
     PyObject *blocks;
     PyObject *up_left_blocks;
     PyObject *up_right_blocks;

overviewer_core/src/rendermode-cave.c

@@ -202,7 +202,7 @@ rendermode_cave_finish(void *data, RenderState *state) {
 }
 
 static void
-rendermode_cave_draw(void *data, RenderState *state, PyObject *src, PyObject *mask) {
+rendermode_cave_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
     RenderModeCave* self;
     int z, r, g, b;
     self = (RenderModeCave *)data;
@@ -211,7 +211,7 @@ rendermode_cave_draw(void *data, RenderState *state, PyObject *src, PyObject *ma
     r = 0, g = 0, b = 0;
 
     /* draw the normal block */
-    rendermode_normal.draw(data, state, src, mask);
+    rendermode_normal.draw(data, state, src, mask, mask_light);
 
     /* get the colors and tint and tint */
     /* TODO TODO   for a nether mode there isn't tinting! */

overviewer_core/src/rendermode-lighting.c

@@ -91,7 +91,7 @@ get_lighting_coefficient(RenderModeLighting *self, RenderState *state,
     
     /* only do special half-step handling if no authoratative pointer was
        passed in, which is a sign that we're recursing */
-    if (block == 44 && authoratative == NULL) {
+    if ((block == 44 || block == 53 || block == 67) && authoratative == NULL) {
         float average_gather = 0.0f;
         unsigned int average_count = 0;
         int auth;
@@ -206,19 +206,19 @@ rendermode_lighting_occluded(void *data, RenderState *state) {
 }
 
 static void
-rendermode_lighting_draw(void *data, RenderState *state, PyObject *src, PyObject *mask) {
+rendermode_lighting_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
     RenderModeLighting* self;
     int x, y, z;
 
     /* first, chain up */
-    rendermode_normal.draw(data, state, src, mask);
+    rendermode_normal.draw(data, state, src, mask, mask_light);
     
     self = (RenderModeLighting *)data;
     x = state->x, y = state->y, z = state->z;
     
     if (is_transparent(state->block)) {
         /* transparent: do shading on whole block */
-        do_shading_with_mask(self, state, x, y, z, mask);
+        do_shading_with_mask(self, state, x, y, z, mask_light);
     } else {
         /* opaque: do per-face shading */
         do_shading_with_mask(self, state, x, y, z+1, self->facemasks[0]);

overviewer_core/src/rendermode-night.c

@@ -54,9 +54,9 @@ rendermode_night_occluded(void *data, RenderState *state) {
 }
 
 static void
-rendermode_night_draw(void *data, RenderState *state, PyObject *src, PyObject *mask) {
+rendermode_night_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
     /* nothing special to do */
-    rendermode_lighting.draw(data, state, src, mask);
+    rendermode_lighting.draw(data, state, src, mask, mask_light);
 }
 
 RenderModeInterface rendermode_night = {

overviewer_core/src/rendermode-normal.c

@@ -56,6 +56,7 @@ rendermode_normal_start(void *data, RenderState *state) {
 
             self->leaf_texture = NULL;
             self->grass_texture = NULL;
+            self->tall_grass_texture = NULL;
             self->facemask_top = NULL;
         } else {
 
@@ -64,6 +65,8 @@ rendermode_normal_start(void *data, RenderState *state) {
 
             self->leaf_texture = PyObject_GetAttrString(state->textures, "biome_leaf_texture");
             self->grass_texture = PyObject_GetAttrString(state->textures, "biome_grass_texture");
+            self->tall_grass_texture = PyObject_GetAttrString(state->textures, "biome_tall_grass_texture");
+            self->tall_fern_texture = PyObject_GetAttrString(state->textures, "biome_tall_fern_texture");
 
             facemasks_py = PyObject_GetAttrString(state->chunk, "facemasks");
             /* borrowed reference, needs to be incref'd if we keep it */
@@ -78,6 +81,8 @@ rendermode_normal_start(void *data, RenderState *state) {
         
         self->leaf_texture = NULL;
         self->grass_texture = NULL;
+        self->tall_grass_texture = NULL;
+        self->tall_fern_texture = NULL;
         self->facemask_top = NULL;
     }
     
@@ -98,6 +103,8 @@ rendermode_normal_finish(void *data, RenderState *state) {
     Py_XDECREF(self->grasscolor);
     Py_XDECREF(self->leaf_texture);
     Py_XDECREF(self->grass_texture);
+    Py_XDECREF(self->tall_grass_texture);
+    Py_XDECREF(self->tall_fern_texture);
     Py_XDECREF(self->facemask_top);
 }
 
@@ -116,12 +123,21 @@ rendermode_normal_occluded(void *data, RenderState *state) {
 }
 
 static void
-rendermode_normal_draw(void *data, RenderState *state, PyObject *src, PyObject *mask) {
+rendermode_normal_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
     RenderModeNormal *self = (RenderModeNormal *)data;
     
     /* first, check to see if we should use biome-compatible src, mask */
-    if (self->biome_data && state->block == 18) {
+    if (self->biome_data) {
+        if (state->block == 18) {
             src = mask = self->leaf_texture;
+        } else if (state->block == 31) {
+            unsigned char data = getArrayByte3D(state->blockdata_expanded, state->x, state->y, state->z);
+            if (data == 1) {
+                src = mask = self->tall_grass_texture;
+            } else if (data == 2) {
+                src = mask = self->tall_fern_texture;
+            }
+        }
     }
     
     /* draw the block! */
@@ -150,6 +166,15 @@ rendermode_normal_draw(void *data, RenderState *state, PyObject *src, PyObject *
             color = PySequence_GetItem(self->foliagecolor, index);
             facemask = mask;
             break;
+        case 31:
+            /* tall grass */
+            if ( getArrayByte3D(state->blockdata_expanded, state->x, state->y, state->z) != 0 )
+            { /* do not tint dead shrubs */
+                color = PySequence_GetItem(self->grasscolor, index);
+                facemask = mask;
+                break;
+            }
+            break;
         default:
             break;
         };

overviewer_core/src/rendermode-overlay.c

@@ -71,7 +71,7 @@ rendermode_overlay_occluded(void *data, RenderState *state) {
 }
 
 static void
-rendermode_overlay_draw(void *data, RenderState *state, PyObject *src, PyObject *mask) {
+rendermode_overlay_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
     RenderModeOverlay *self = (RenderModeOverlay *)data;
     unsigned char r, g, b, a;
     PyObject *top_block_py, *block_py;

overviewer_core/src/rendermode-spawn.c

@@ -102,9 +102,9 @@ rendermode_spawn_occluded(void *data, RenderState *state) {
 }
 
 static void
-rendermode_spawn_draw(void *data, RenderState *state, PyObject *src, PyObject *mask) {
+rendermode_spawn_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
     /* draw normally */
-    rendermode_overlay.draw(data, state, src, mask);
+    rendermode_overlay.draw(data, state, src, mask, mask_light);
 }
 
 RenderModeInterface rendermode_spawn = {

overviewer_core/src/rendermodes.h

@@ -56,7 +56,7 @@ struct _RenderModeInterface {
     /* returns non-zero to skip rendering this block */
     int (*occluded)(void *, RenderState *);
     /* last two arguments are img and mask, from texture lookup */
-    void (*draw)(void *, RenderState *, PyObject *, PyObject *);
+    void (*draw)(void *, RenderState *, PyObject *, PyObject *, PyObject *);
 };
 
 /* figures out the render mode to use from the given ChunkRenderer */
@@ -79,7 +79,7 @@ typedef struct {
     /* grasscolor and foliagecolor lookup tables */
     PyObject *grasscolor, *foliagecolor;
     /* biome-compatible grass/leaf textures */
-    PyObject *grass_texture, *leaf_texture;
+    PyObject *grass_texture, *leaf_texture, *tall_grass_texture, *tall_fern_texture;
     /* top facemask for grass biome tinting */
     PyObject *facemask_top;
 } RenderModeNormal;

overviewer_core/textures.py

@@ -263,7 +263,7 @@ def _build_block(top, side, blockID=None):
     otherside.putalpha(othersidealpha)
 
     ## special case for non-block things
-    if blockID in (37,38,6,39,40,83,30): ## flowers, sapling, mushrooms, reeds, web
+    if blockID in (31,32,37,38,6,39,40,83,30): ## tall grass, dead shrubs, flowers, sapling, mushrooms, reeds, web
         #
         # instead of pasting these blocks at the cube edges, place them in the middle:
         # and omit the top
@@ -416,7 +416,7 @@ def _build_blockimages():
        #       16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
                34, -1, 52, 48, 49,160,144, -1,176, 74, -1, -1, -1, -1, 11, -1,
        #       32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
-               -1, -1, -1, -1, -1, 13, 12, 29, 28, 23, 22, -1, -1,  7,  9,  4, 
+               55, -1, -1, -1, -1, 13, 12, 29, 28, 23, 22, -1, -1,  7,  9,  4, 
        #       48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
                36, 37, -1, -1, 65, -1, -1, -1, 50, 24, -1, -1, 86, -1, -1, -1,
        #       64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79
@@ -433,7 +433,7 @@ def _build_blockimages():
        #        16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
                 34, -1, 52, 48, 49,160,144, -1,192, 74, -1, -1,- 1, -1, 11, -1,
        #        32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
-                -1, -1, -1, -1, -1, 13, 12, 29, 28, 23, 22, -1, -1,  7,  8, 35,
+                55, -1, -1, -1, -1, 13, 12, 29, 28, 23, 22, -1, -1,  7,  8, 35,
        #        48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
                 36, 37, -1, -1, 65, -1, -1,101, 50, 24, -1, -1, 86, -1, -1, -1,
        #        64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79
@@ -459,7 +459,7 @@ def _build_blockimages():
         ## of the block or the texture ID
         img = _build_block(toptexture, sidetexture, blockID)
 
-        allimages.append((img.convert("RGB"), img.split()[3]))
+        allimages.append(generate_texture_tuple(img, blockID))
 
     # Future block types:
     while len(allimages) < 256:
@@ -478,15 +478,34 @@ def load_water():
 
     watertexture = _load_image("water.png")
     w1 = _build_block(watertexture, None)
-    blockmap[9] = w1.convert("RGB"), w1
+    blockmap[9] = generate_texture_tuple(w1,9)
     w2 = _build_block(watertexture, watertexture)
-    blockmap[8] = w2.convert("RGB"), w2
+    blockmap[8] = generate_texture_tuple(w2,8)
 
     lavatexture = _load_image("lava.png")
     lavablock = _build_block(lavatexture, lavatexture)
-    blockmap[10] = lavablock.convert("RGB"), lavablock
+    blockmap[10] = generate_texture_tuple(lavablock,10)
     blockmap[11] = blockmap[10]
 
+def generate_opaque_mask(img):
+    """ Takes the alpha channel of the image and generates a mask
+    (used for lighting the block) that deprecates values of alpha
+    smallers than 50, and sets every other value to 255. """
+    
+    alpha = img.split()[3]
+    pixel = alpha.load()
+    for x in range(img.size[0]):
+        for y in range(img.size[1]):
+            if pixel[x,y] > 25:
+                pixel[x,y] = 255
+    
+    return alpha
+
+def generate_texture_tuple(img, blockid):
+    """ This takes an image and returns the needed tuple for the
+    blockmap list and specialblockmap dictionary."""
+    return (img.convert("RGB"), img.split()[3], generate_opaque_mask(img))
+
 def generate_special_texture(blockID, data):
     """Generates a special texture, such as a correctly facing minecraft track"""
     #print "%s has ancillary data: %X" %(blockID, data)
@@ -502,7 +521,7 @@ def generate_special_texture(blockID, data):
         if not data & 0x10:
             colored = tintTexture(biome_grass_texture, (115, 175, 71))
             composite.alpha_over(img, colored, (0, 0), colored)
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 6: # saplings
@@ -526,7 +545,7 @@ def generate_special_texture(blockID, data):
             sidetexture = terrain_images[15]
 
         img = _build_block(toptexture, sidetexture, blockID)
-        return (img.convert("RGB"),img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 9: # spring water, flowing water and waterfall water
@@ -554,9 +573,9 @@ def generate_special_texture(blockID, data):
             side4 = watertexture    # bottom right
         else: side4 = None
         
-        img = _build_full_block(top,side1,side2,side3,side4)
+        img = _build_full_block(top,None,None,side3,side4)
         
-        return (img.convert("RGB"),img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 17: # wood: normal, birch and pines
@@ -564,21 +583,20 @@ def generate_special_texture(blockID, data):
         if data == 0:
             side = terrain_images[20]
             img = _build_block(top, side, 17)
-            return (img.convert("RGB"), img.split()[3])
         if data == 1:
             side = terrain_images[116]
             img = _build_block(top, side, 17)
-            return (img.convert("RGB"), img.split()[3])
         if data == 2:
             side = terrain_images[117]
             img = _build_block(top, side, 17)
-            return (img.convert("RGB"), img.split()[3])
+        
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 18: # leaves
         t = tintTexture(terrain_images[52], (37, 118, 25))
         img = _build_block(t, t, 18)
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 26: # bed
@@ -624,74 +642,58 @@ def generate_special_texture(blockID, data):
         top = (top, increment)
         img = _build_full_block(top, None, None, left_face, right_face)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
+
+    if blockID == 31: # tall grass
+        if data == 0: # dead shrub
+            texture = terrain_images[55]
+        elif data == 1: # tall grass
+            texture = terrain_images[39].copy()
+            texture = tintTexture(texture, (115, 175, 71))
+        elif data == 2: # fern
+            texture = terrain_images[56].copy()
+            texture = tintTexture(texture, (115, 175, 71))
+        
+        img = _build_block(texture, texture, blockID)
+        return generate_texture_tuple(img,31)
         
             
     if blockID == 35: # wool
         if data == 0: # white
             top = side = terrain_images[64]
-            img = _build_block(top, side, 35)
+        elif data == 1: # orange
-            return (img.convert("RGB"), img.split()[3])
-        if data == 1: # orange
             top = side = terrain_images[210]
-            img = _build_block(top, side, 35)
+        elif data == 2: # magenta
-            return (img.convert("RGB"), img.split()[3])
-        if data == 2: # magenta
             top = side = terrain_images[194]
-            img = _build_block(top, side, 35)
+        elif data == 3: # light blue
-            return (img.convert("RGB"), img.split()[3])
-        if data == 3: # light blue
             top = side = terrain_images[178]
-            img = _build_block(top, side, 35)
+        elif data == 4: # yellow
-            return (img.convert("RGB"), img.split()[3])
-        if data == 4: # yellow
             top = side = terrain_images[162]
-            img = _build_block(top, side, 35)
+        elif data == 5: # light green
-            return (img.convert("RGB"), img.split()[3])
-        if data == 5: # light green
             top = side = terrain_images[146]
-            img = _build_block(top, side, 35)
+        elif data == 6: # pink
-            return (img.convert("RGB"), img.split()[3])
-        if data == 6: # pink
             top = side = terrain_images[130]
-            img = _build_block(top, side, 35)
+        elif data == 7: # grey
-            return (img.convert("RGB"), img.split()[3])
-        if data == 7: # grey
             top = side = terrain_images[114]
-            img = _build_block(top, side, 35)
+        elif data == 8: # light grey
-            return (img.convert("RGB"), img.split()[3])
-        if data == 8: # light grey
             top = side = terrain_images[225]
-            img = _build_block(top, side, 35)
+        elif data == 9: # cyan
-            return (img.convert("RGB"), img.split()[3])
-        if data == 9: # cyan
             top = side = terrain_images[209]
-            img = _build_block(top, side, 35)
+        elif data == 10: # purple
-            return (img.convert("RGB"), img.split()[3])
-        if data == 10: # purple
             top = side = terrain_images[193]
-            img = _build_block(top, side, 35)
+        elif data == 11: # blue
-            return (img.convert("RGB"), img.split()[3])
-        if data == 11: # blue
             top = side = terrain_images[177]
-            img = _build_block(top, side, 35)
+        elif data == 12: # brown
-            return (img.convert("RGB"), img.split()[3])
-        if data == 12: # brown
             top = side = terrain_images[161]
-            img = _build_block(top, side, 35)
+        elif data == 13: # dark green
-            return (img.convert("RGB"), img.split()[3])
-        if data == 13: # dark green
             top = side = terrain_images[145]
-            img = _build_block(top, side, 35)
+        elif data == 14: # red
-            return (img.convert("RGB"), img.split()[3])
-        if data == 14: # red
             top = side = terrain_images[129]
-            img = _build_block(top, side, 35)
+        elif data == 15: # black
-            return (img.convert("RGB"), img.split()[3])
-        if data == 15: # black
             top = side = terrain_images[113]
+
         img = _build_block(top, side, 35)
-            return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID in (43,44): # slab and double-slab
@@ -699,24 +701,16 @@ def generate_special_texture(blockID, data):
         if data == 0: # stone slab
             top = terrain_images[6]
             side = terrain_images[5]
-            img = _build_block(top, side, blockID)
-            return (img.convert("RGB"), img.split()[3])
-            
         if data == 1: # stone slab
             top = terrain_images[176]
             side = terrain_images[192]
-            img = _build_block(top, side, blockID)
-            return (img.convert("RGB"), img.split()[3])
-            
         if data == 2: # wooden slab
             top = side = terrain_images[4]
-            img = _build_block(top, side, blockID)
-            return (img.convert("RGB"), img.split()[3])
-            
         if data == 3: # cobblestone slab
             top = side = terrain_images[16]
+
         img = _build_block(top, side, blockID)
-            return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID in (50,75,76): # torch, off redstone torch, on redstone torch
@@ -769,7 +763,7 @@ def generate_special_texture(blockID, data):
             composite.alpha_over(img, small_crop, (6,5))
             composite.alpha_over(img, slice, (6,6))
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 51: # fire
@@ -785,7 +779,7 @@ def generate_special_texture(blockID, data):
         composite.alpha_over(img, side1, (0,6), side1)
         composite.alpha_over(img, side2, (12,6), side2)
         
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID in (53,67): # wooden and cobblestone stairs.
@@ -854,7 +848,7 @@ def generate_special_texture(blockID, data):
             # touch up a (horrible) pixel
             img.putpixel((18,3),(0,0,0,0))
             
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
     if blockID == 54: # chests
         # First to bits of the pseudo data store if it's a single chest
@@ -896,7 +890,7 @@ def generate_special_texture(blockID, data):
         else:
             img = _build_full_block(top, None, None, back, side)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 55: # redstone wire
@@ -974,7 +968,7 @@ def generate_special_texture(blockID, data):
             
         img = _build_full_block(None,side1,side2,None,None,bottom)
 
-        return (img.convert("RGB"),img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 58: # crafting table
@@ -983,7 +977,7 @@ def generate_special_texture(blockID, data):
         side4 = terrain_images[43+16+1]
         
         img = _build_full_block(top, None, None, side3, side4, None, 58)
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 59: # crops
@@ -996,7 +990,7 @@ def generate_special_texture(blockID, data):
         composite.alpha_over(img, crop1, (0,12), crop1)
         composite.alpha_over(img, crop2, (6,3), crop2)
         composite.alpha_over(img, crop3, (6,3), crop3)
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID in (61, 62, 23): #furnace and burning furnace
@@ -1021,7 +1015,7 @@ def generate_special_texture(blockID, data):
         else: # in any other direction the front can't be seen
             img = _build_full_block(top, None, None, side, side)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 63: # singposts
@@ -1064,7 +1058,7 @@ def generate_special_texture(blockID, data):
         composite.alpha_over(img, post2,(incrementx, -3),post2)
         composite.alpha_over(img, post, (0,-2), post)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID in (64,71): #wooden door, or iron door
@@ -1116,10 +1110,11 @@ def generate_special_texture(blockID, data):
                 tex = transform_image_side(raw_door.transpose(Image.FLIP_LEFT_RIGHT))
                 composite.alpha_over(img, tex, (0,6), tex)
         
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 65: # ladder
+        img = Image.new("RGBA", (24,24), (38,92,255,0))
         raw_texture = terrain_images[83]
         #print "ladder is facing: %d" % data
         if data == 5:
@@ -1127,27 +1122,24 @@ def generate_special_texture(blockID, data):
             # but since ladders can apparently be placed on transparent blocks, we 
             # have to render this thing anyway.  same for data == 2
             tex = transform_image_side(raw_texture)
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             composite.alpha_over(img, tex, (0,6), tex)
-            return (img.convert("RGB"), img.split()[3])
+            return generate_texture_tuple(img, blockID)
         if data == 2:
             tex = transform_image_side(raw_texture).transpose(Image.FLIP_LEFT_RIGHT)
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             composite.alpha_over(img, tex, (12,6), tex)
-            return (img.convert("RGB"), img.split()[3])
+            return generate_texture_tuple(img, blockID)
         if data == 3:
             tex = transform_image_side(raw_texture).transpose(Image.FLIP_LEFT_RIGHT)
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             composite.alpha_over(img, tex, (0,0), tex)
-            return (img.convert("RGB"), img.split()[3])
+            return generate_texture_tuple(img, blockID)
         if data == 4:
             tex = transform_image_side(raw_texture)
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             composite.alpha_over(img, tex, (12,0), tex)
-            return (img.convert("RGB"), img.split()[3])
+            return generate_texture_tuple(img, blockID)
 
 
     if blockID in (27, 28, 66): # minetrack:
+        img = Image.new("RGBA", (24,24), (38,92,255,0))
         
         if blockID == 27: # powered rail
             if data & 0x8 == 0: # unpowered
@@ -1171,58 +1163,48 @@ def generate_special_texture(blockID, data):
         ## use transform_image to scale and shear
         if data == 0:
             track = transform_image(raw_straight, blockID)
+            composite.alpha_over(img, track, (0,12), track)
         elif data == 6:
             track = transform_image(raw_corner, blockID)
+            composite.alpha_over(img, track, (0,12), track)
         elif data == 7:
             track = transform_image(raw_corner.rotate(270), blockID)
+            composite.alpha_over(img, track, (0,12), track)
         elif data == 8:
             # flip
             track = transform_image(raw_corner.transpose(Image.FLIP_TOP_BOTTOM).rotate(90), 
                     blockID)
+            composite.alpha_over(img, track, (0,12), track)
         elif data == 9:
             track = transform_image(raw_corner.transpose(Image.FLIP_TOP_BOTTOM), 
                     blockID)
+            composite.alpha_over(img, track, (0,12), track)
         elif data == 1:
             track = transform_image(raw_straight.rotate(90), blockID)
+            composite.alpha_over(img, track, (0,12), track)
             
         #slopes
         elif data == 2: # slope going up in +x direction
             track = transform_image_slope(raw_straight,blockID)
             track = track.transpose(Image.FLIP_LEFT_RIGHT)
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             composite.alpha_over(img, track, (2,0), track)
             # the 2 pixels move is needed to fit with the adjacent tracks
-            return (img.convert("RGB"), img.split()[3])
 
         elif data == 3: # slope going up in -x direction
             # tracks are sprites, in this case we are seeing the "side" of 
             # the sprite, so draw a line to make it beautiful.
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             ImageDraw.Draw(img).line([(11,11),(23,17)],fill=(164,164,164))
             # grey from track texture (exterior grey).
             # the track doesn't start from image corners, be carefull drawing the line!
-            return (img.convert("RGB"), img.split()[3])
-            
         elif data == 4: # slope going up in -y direction
             track = transform_image_slope(raw_straight,blockID)
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             composite.alpha_over(img, track, (0,0), track)
-            return (img.convert("RGB"), img.split()[3])
 
         elif data == 5: # slope going up in +y direction
             # same as "data == 3"
-            img = Image.new("RGBA", (24,24), (38,92,255,0))
             ImageDraw.Draw(img).line([(1,17),(12,11)],fill=(164,164,164))
-            return (img.convert("RGB"), img.split()[3])
 
-
+        return generate_texture_tuple(img, blockID)
-        else: # just in case
-            track = transform_image(raw_straight, blockID)
-
-        img = Image.new("RGBA", (24,24), (38,92,255,0))
-        composite.alpha_over(img, track, (0,12), track)
-
-        return (img.convert("RGB"), img.split()[3])
 
 
     if blockID == 68: # wall sign
@@ -1260,28 +1242,28 @@ def generate_special_texture(blockID, data):
         composite.alpha_over(img, sign2,(incrementx, 2),sign2)
         composite.alpha_over(img, sign, (0,3), sign)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
     if blockID == 85: # fences
         # create needed images for Big stick fence
-        raw_texture = terrain_images[4]
-        raw_fence_top = Image.new("RGBA", (16,16), (38,92,255,0))
-        raw_fence_side = Image.new("RGBA", (16,16), (38,92,255,0))
-        fence_top_mask = Image.new("RGBA", (16,16), (38,92,255,0))
-        fence_side_mask = Image.new("RGBA", (16,16), (38,92,255,0))
 
-        # generate the masks images for textures of the fence
+        fence_top = terrain_images[4].copy()
-        ImageDraw.Draw(fence_top_mask).rectangle((6,6,9,9),outline=(0,0,0),fill=(0,0,0))
+        fence_side = terrain_images[4].copy()
-        ImageDraw.Draw(fence_side_mask).rectangle((6,1,9,15),outline=(0,0,0),fill=(0,0,0))
         
-        # create textures top and side for fence big stick
+        # generate the textures of the fence
-        composite.alpha_over(raw_fence_top,raw_texture,(0,0),fence_top_mask)
+        ImageDraw.Draw(fence_top).rectangle((0,0,5,15),outline=(0,0,0,0),fill=(0,0,0,0))
-        composite.alpha_over(raw_fence_side,raw_texture,(0,0),fence_side_mask)
+        ImageDraw.Draw(fence_top).rectangle((10,0,15,15),outline=(0,0,0,0),fill=(0,0,0,0))
+        ImageDraw.Draw(fence_top).rectangle((0,0,15,5),outline=(0,0,0,0),fill=(0,0,0,0))
+        ImageDraw.Draw(fence_top).rectangle((0,10,15,15),outline=(0,0,0,0),fill=(0,0,0,0))
+
+        ImageDraw.Draw(fence_side).rectangle((0,0,15,0),outline=(0,0,0,0),fill=(0,0,0,0))
+        ImageDraw.Draw(fence_side).rectangle((0,0,5,15),outline=(0,0,0,0),fill=(0,0,0,0))
+        ImageDraw.Draw(fence_side).rectangle((10,0,15,15),outline=(0,0,0,0),fill=(0,0,0,0))
 
         # Create the sides and the top of the big stick
-        fence_side = transform_image_side(raw_fence_side,85)
+        fence_side = transform_image_side(fence_side,85)
         fence_other_side = fence_side.transpose(Image.FLIP_LEFT_RIGHT)
-        fence_top = transform_image(raw_fence_top,85)
+        fence_top = transform_image(fence_top,85)
 
         # Darken the sides slightly. These methods also affect the alpha layer,
         # so save them first (we don't want to "darken" the alpha layer making
@@ -1301,18 +1283,17 @@ def generate_special_texture(blockID, data):
         
         # Now render the small sticks.
         # Create needed images
-        raw_fence_small_side = Image.new("RGBA", (16,16), (38,92,255,0))
+        fence_small_side = terrain_images[4].copy()
-        fence_small_side_mask = Image.new("RGBA", (16,16), (38,92,255,0))
         
         # Generate mask
-        ImageDraw.Draw(fence_small_side_mask).rectangle((10,1,15,3),outline=(0,0,0),fill=(0,0,0))
+        ImageDraw.Draw(fence_small_side).rectangle((0,0,15,0),outline=(0,0,0,0),fill=(0,0,0,0))
-        ImageDraw.Draw(fence_small_side_mask).rectangle((10,7,15,9),outline=(0,0,0),fill=(0,0,0))
+        ImageDraw.Draw(fence_small_side).rectangle((0,4,15,6),outline=(0,0,0,0),fill=(0,0,0,0))
-        
+        ImageDraw.Draw(fence_small_side).rectangle((0,10,15,16),outline=(0,0,0,0),fill=(0,0,0,0))
-         # create the texture for the side of small sticks fence
+        ImageDraw.Draw(fence_small_side).rectangle((0,0,4,15),outline=(0,0,0,0),fill=(0,0,0,0))
-        composite.alpha_over(raw_fence_small_side,raw_texture,(0,0),fence_small_side_mask)
+        ImageDraw.Draw(fence_small_side).rectangle((11,0,15,15),outline=(0,0,0,0),fill=(0,0,0,0))
 
         # Create the sides and the top of the small sticks
-        fence_small_side = transform_image_side(raw_fence_small_side,85)
+        fence_small_side = transform_image_side(fence_small_side,85)
         fence_small_other_side = fence_small_side.transpose(Image.FLIP_LEFT_RIGHT)
         
         # Darken the sides slightly. These methods also affect the alpha layer,
@@ -1325,18 +1306,16 @@ def generate_special_texture(blockID, data):
         fence_small_side = ImageEnhance.Brightness(fence_small_side).enhance(0.9)
         fence_small_side.putalpha(sidealpha)
 
-
        # Create img to compose the fence
-
         img = Image.new("RGBA", (24,24), (38,92,255,0))
 
         # Position of fence small sticks in img.
         # These postitions are strange because the small sticks of the 
         # fence are at the very left and at the very right of the 16x16 images
-        pos_top_left = (-2,0)
+        pos_top_left = (2,3)
-        pos_top_right = (14,0)
+        pos_top_right = (10,3)
-        pos_bottom_right = (6,4)
+        pos_bottom_right = (10,7)
-        pos_bottom_left = (6,4)
+        pos_bottom_left = (2,7)
         
         # +x axis points top right direction
         # +y axis points bottom right direction
@@ -1355,7 +1334,7 @@ def generate_special_texture(blockID, data):
         if (data & 0b0100) == 4:
             composite.alpha_over(img,fence_small_side, pos_bottom_right,fence_small_side)                  # bottom right
             
-        return (img.convert("RGB"),img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID in (86,91): # pumpkins, jack-o-lantern
@@ -1373,7 +1352,7 @@ def generate_special_texture(blockID, data):
         else: # in any other direction the front can't be seen
             img = _build_full_block(top, None, None, side, side)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 90: # portal
@@ -1389,7 +1368,7 @@ def generate_special_texture(blockID, data):
         if data in (2,8):
             composite.alpha_over(img, otherside, (5,4), otherside)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID == 92: # cake! (without bites, at the moment)
@@ -1414,7 +1393,7 @@ def generate_special_texture(blockID, data):
         composite.alpha_over(img, otherside, (12,12), otherside)
         composite.alpha_over(img, top, (0,6), top)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
 
 
     if blockID in (93, 94): # redstone repeaters, ON and OFF
@@ -1532,7 +1511,25 @@ def generate_special_texture(blockID, data):
         composite.alpha_over(img, torch, static_torch, torch) 
         composite.alpha_over(img, torch, moving_torch, torch)
 
-        return (img.convert("RGB"), img.split()[3])
+        return generate_texture_tuple(img, blockID)
+        
+        
+    if blockID == 96: # trapdoor
+        texture = terrain_images[84]
+        if data & 0x4 == 0x4: # opened trapdoor
+            if data & 0x3 == 0: # west
+                img = _build_full_block(None, None, None, None, texture)
+            if data & 0x3 == 1: # east
+                img = _build_full_block(None, texture, None, None, None)
+            if data & 0x3 == 2: # south
+                img = _build_full_block(None, None, texture, None, None)
+            if data & 0x3 == 3: # north
+                img = _build_full_block(None, None, None, texture, None)
+            
+        elif data & 0x4 == 0: # closed trapdoor
+            img = _build_full_block((texture, 9), None, None, texture, texture)
+        
+        return generate_texture_tuple(img, blockID)
 
 
     return None
@@ -1607,9 +1604,9 @@ def getBiomeData(worlddir, chunkX, chunkY):
 # (when adding new blocks here and in generate_special_textures,
 # please, if possible, keep the ascending order of blockid value)
 
-special_blocks = set([ 2,  6,  9, 17, 18, 26, 23, 27, 28, 35, 43, 44, 50,
+special_blocks = set([ 2,  6,  9, 17, 18, 26, 23, 27, 28, 31, 35, 43, 44,
-                      51, 53, 54, 55, 58, 59, 61, 62, 63, 64, 65, 66, 67,
+                      50, 51, 53, 54, 55, 58, 59, 61, 62, 63, 64, 65, 66,
-                      68, 71, 75, 76, 85, 86, 90, 91, 92, 93, 94])
+                      67, 68, 71, 75, 76, 85, 86, 90, 91, 92, 93, 94, 96])
 
 # this is a map of special blockIDs to a list of all 
 # possible values for ancillary data that it might have.
@@ -1618,7 +1615,7 @@ special_map = {}
 
 special_map[6] = range(16)  # saplings: usual, spruce, birch and future ones (rendered as usual saplings)
 special_map[9] = range(32)  # water: spring,flowing, waterfall, and others (unknown) ancildata values, uses pseudo data
-special_map[17] = range(4)  # wood: normal, birch and pine
+special_map[17] = range(3)  # wood: normal, birch and pine
 special_map[26] = range(12) # bed, orientation
 special_map[23] = range(6)  # dispensers, orientation
 special_map[27] = range(14) # powered rail, orientation/slope and powered/unpowered
@@ -1651,6 +1648,7 @@ special_map[91] = range(5)  # jack-o-lantern, orientation
 special_map[92] = range(6) # cake!
 special_map[93] = range(16) # OFF redstone repeater, orientation and delay (delay not implemented)
 special_map[94] = range(16) # ON redstone repeater, orientation and delay (delay not implemented)
+special_map[96] = range(8)  # trapdoor, open, closed, orientation
 
 # grass and leaves are graysacle in terrain.png
 # we treat them as special so we can manually tint them
@@ -1661,11 +1659,14 @@ special_map[2] = range(11) + [0x10,]  # grass, grass has not ancildata but is
                                       # small fix shows the map as expected,
                                       # and is harmless for normal maps
 special_map[18] = range(16) # leaves, birch, normal or pine leaves (not implemented)
+special_map[31] = range(3) # tall grass, dead shrub, fern and tall grass itself
 
 # placeholders that are generated in generate()
 terrain_images = None
 blockmap = None
 biome_grass_texture = None
+biome_tall_grass_texture = None
+biome_tall_fern_texture = None
 biome_leaf_texture = None
 specialblockmap = None
 
@@ -1683,9 +1684,11 @@ def generate(path=None):
     load_water()
     
     # generate biome (still grayscale) leaf, grass textures
-    global biome_grass_texture, biome_leaf_texture
+    global biome_grass_texture, biome_leaf_texture, biome_tall_grass_texture, biome_tall_fern_texture
     biome_grass_texture = _build_block(terrain_images[0], terrain_images[38], 2)
     biome_leaf_texture = _build_block(terrain_images[52], terrain_images[52], 18)
+    biome_tall_grass_texture = _build_block(terrain_images[39], terrain_images[39], 31)
+    biome_tall_fern_texture = _build_block(terrain_images[56], terrain_images[56], 31)
     
     # generate the special blocks
     global specialblockmap, special_blocks

overviewer_core/world.py

@@ -100,9 +100,6 @@ class World(object):
             logging.error("Sorry, This version of Minecraft-Overviewer only works with the new McRegion chunk format")
             sys.exit(1)
 
-        if self.useBiomeData:
-            textures.prepareBiomeData(worlddir)
-
         #  stores Points Of Interest to be mapped with markers
         #  a list of dictionaries, see below for an example
         self.POI = []