Added latest version of Alarantalara's mine cart tracks.

data/core/terrain-graphics.cfg

@@ -20,7 +20,7 @@
 {BRIDGE               *^Bw\ *^Bw| *^Bw/  (W*^,Ss^,Ai^) (C*,K*,*^F*)                bridge/wood}
 
 # Mine rail tracks
-{BRIDGE               *^Br\ *^Br| *^Br/  (!,*^Br*) (C*,K*)  cave/rails}
+{RAILWAY              *^Br\ *^Br| *^Br/  cave/rails}
 
 # Forests
 # SIMPLE_FOREST_TERRAIN defined in forests.cfg

data/core/terrain-graphics/rails.cfg

@@ -0,0 +1,96 @@
+#
+# Mine rail graphics
+#
+
+# this macro adds switches at track intersections
+#define RAIL_SWITCH IMAGESTEM BRIDGETYPE_NAME BRIDGETYPE_JOIN_NAME SWITCHSIDE_AFFIX MAINRAIL_AFFIX SWITCH_REVERSE_AFFIX X Y
+    [terrain_graphics]
+        [tile]
+            x=1
+            y=1
+            type={BRIDGETYPE_NAME}
+            set_flag=angle_{SWITCH_REVERSE_AFFIX}
+        [/tile]
+        [tile]
+            x={X}
+            y={Y}
+            type={BRIDGETYPE_JOIN_NAME}
+            no_flag=angleaway_{SWITCHSIDE_AFFIX}, angle_{SWITCHSIDE_AFFIX}, angle_{SWITCH_REVERSE_AFFIX}
+            set_flag=angleaway_{SWITCHSIDE_AFFIX}
+            {IMAGE_L_N -80 ({IMAGESTEM}-switch-{SWITCHSIDE_AFFIX}-{MAINRAIL_AFFIX})}
+        [/tile]
+    [/terrain_graphics]
+#enddef
+
+# this macro adds ends wherever rails don't join with another track
+#define RAIL_END IMAGESTEM BRIDGETYPE_NAME TRACKSIDE_AFFIX X Y
+    [terrain_graphics]
+        [tile]
+            x=1
+            y=1
+            type={BRIDGETYPE_NAME}
+        [/tile]
+        [tile]
+            x={X}
+            y={Y}
+            no_flag=angleaway_{TRACKSIDE_AFFIX}, angle_{TRACKSIDE_AFFIX}
+            {IMAGE_L_N -80 {IMAGESTEM}-{TRACKSIDE_AFFIX}-end}
+        [/tile]
+    [/terrain_graphics]
+#enddef
+#define RAILWAY SE_NW_VALUE N_S_VALUE NE_SW_VALUE IMAGESTEM
+
+    # find Y intersections
+    {BRIDGE_Y {N_S_VALUE} {SE_NW_VALUE} {NE_SW_VALUE} {IMAGESTEM}-joint-ne-s-nw n ne se s sw nw 2 4 3 . . .}
+    {BRIDGE_Y {NE_SW_VALUE} {N_S_VALUE} {SE_NW_VALUE} {IMAGESTEM}-joint-n-se-sw ne se s sw nw n . 2 4 3 . .}
+    {BRIDGE_Y {SE_NW_VALUE} {NE_SW_VALUE} {N_S_VALUE} {IMAGESTEM}-joint-ne-s-nw se s sw nw n ne . . 2 4 3 .}
+    {BRIDGE_Y {N_S_VALUE} {SE_NW_VALUE} {NE_SW_VALUE} {IMAGESTEM}-joint-n-se-sw s sw nw n ne se . . . 2 4 3}
+    {BRIDGE_Y {NE_SW_VALUE} {N_S_VALUE} {SE_NW_VALUE} {IMAGESTEM}-joint-ne-s-nw sw nw n ne se s 3 . . . 2 4}
+    {BRIDGE_Y {SE_NW_VALUE} {NE_SW_VALUE} {N_S_VALUE} {IMAGESTEM}-joint-n-se-sw nw n ne se s sw 4 3 . . . 2}
+
+    # make sure that colinear adjacent bridges stay connected
+    {BRIDGECONNECT {N_S_VALUE}   n ne se s sw nw 1 0}
+    {BRIDGECONNECT {NE_SW_VALUE} ne se s sw nw n 2 1}
+    {BRIDGECONNECT {SE_NW_VALUE} se s sw nw n ne 2 2}
+
+    # normal corners
+    {CORNER {IMAGESTEM}-joint-s-nw  {N_S_VALUE}   {SE_NW_VALUE} s  nw se n  sw ne 2 3 . . . .}
+    {CORNER {IMAGESTEM}-joint-ne-s  {N_S_VALUE}   {NE_SW_VALUE} s  ne sw n  se nw . 3 2 . . .}
+    {CORNER {IMAGESTEM}-joint-n-sw  {NE_SW_VALUE} {N_S_VALUE}   sw n  s  ne nw se . 2 3 . . .}
+    {CORNER {IMAGESTEM}-joint-se-sw {NE_SW_VALUE} {SE_NW_VALUE} sw se nw ne s  n  . . 3 2 . .}
+    {CORNER {IMAGESTEM}-joint-ne-nw {SE_NW_VALUE} {NE_SW_VALUE} nw ne sw se n  s  . . 2 3 . .}
+    {CORNER {IMAGESTEM}-joint-s-nw  {SE_NW_VALUE} {N_S_VALUE}   nw s  n  se sw ne . . . 3 2 .}
+    {CORNER {IMAGESTEM}-joint-n-se  {N_S_VALUE}   {SE_NW_VALUE} n  se nw s  ne sw . . . 2 3 .}
+    {CORNER {IMAGESTEM}-joint-n-sw  {N_S_VALUE}   {NE_SW_VALUE} n  sw ne s  nw se . . . . 3 2}
+    {CORNER {IMAGESTEM}-joint-ne-s  {NE_SW_VALUE} {N_S_VALUE}   ne s  n  sw se nw . . . . 2 3}
+    {CORNER {IMAGESTEM}-joint-ne-nw {NE_SW_VALUE} {SE_NW_VALUE} ne nw se sw n  s  2 . . . . 3}
+    {CORNER {IMAGESTEM}-joint-se-sw {SE_NW_VALUE} {NE_SW_VALUE} se sw ne nw s  n  3 . . . . 2}
+    {CORNER {IMAGESTEM}-joint-n-se  {SE_NW_VALUE} {N_S_VALUE}   se n  s  nw ne sw 3 2 . . . .}
+
+    # these 3 macros define the default straight bridges
+    {TERRAIN_BASE_OV {N_S_VALUE}   {IMAGESTEM}-n-s}
+    {TERRAIN_BASE_OV {NE_SW_VALUE} {IMAGESTEM}-ne-sw}
+    {TERRAIN_BASE_OV {SE_NW_VALUE} {IMAGESTEM}-se-nw}
+
+    # add switches that are not Ys
+    {RAIL_SWITCH {IMAGESTEM} {N_S_VALUE}   {NE_SW_VALUE} s  ne n  1 0}
+    {RAIL_SWITCH {IMAGESTEM} {N_S_VALUE}   {SE_NW_VALUE} s  nw n  1 0}
+    {RAIL_SWITCH {IMAGESTEM} {NE_SW_VALUE} {N_S_VALUE}   sw n  ne 2 1}
+    {RAIL_SWITCH {IMAGESTEM} {NE_SW_VALUE} {SE_NW_VALUE} sw se sw 2 1}
+    {RAIL_SWITCH {IMAGESTEM} {SE_NW_VALUE} {N_S_VALUE}   nw s  se 2 2}
+    {RAIL_SWITCH {IMAGESTEM} {SE_NW_VALUE} {NE_SW_VALUE} nw ne nw 2 2}
+    {RAIL_SWITCH {IMAGESTEM} {N_S_VALUE}   {NE_SW_VALUE} n  sw s  1 2}
+    {RAIL_SWITCH {IMAGESTEM} {N_S_VALUE}   {SE_NW_VALUE} n  se s  1 2}
+    {RAIL_SWITCH {IMAGESTEM} {NE_SW_VALUE} {N_S_VALUE}   ne s  sw 0 2}
+    {RAIL_SWITCH {IMAGESTEM} {NE_SW_VALUE} {SE_NW_VALUE} ne nw ne 0 2}
+    {RAIL_SWITCH {IMAGESTEM} {SE_NW_VALUE} {N_S_VALUE}   se n  nw 0 1}
+    {RAIL_SWITCH {IMAGESTEM} {SE_NW_VALUE} {NE_SW_VALUE} se sw se 0 1}
+
+    # add basic end to anything left
+    {RAIL_END {IMAGESTEM} {N_S_VALUE}   s  1 0}
+    {RAIL_END {IMAGESTEM} {NE_SW_VALUE} sw 2 1}
+    {RAIL_END {IMAGESTEM} {SE_NW_VALUE} nw 2 2}
+    {RAIL_END {IMAGESTEM} {N_S_VALUE}   n  1 2}
+    {RAIL_END {IMAGESTEM} {NE_SW_VALUE} ne 0 2}
+    {RAIL_END {IMAGESTEM} {SE_NW_VALUE} se 0 1}
+#enddef