add material base:metal + new sounds and materials update

res/content/base/block_materials/glass.json

@@ -1,5 +1,5 @@
 {
-    "steps-sound": "steps/wood",
-    "place-sound": "blocks/wood_place",
+    "steps-sound": "steps/glass",
+    "place-sound": "blocks/glass_place",
     "break-sound": "blocks/glass_break"
 }

res/content/base/block_materials/metal.json

@@ -0,0 +1,5 @@
+{
+    "steps-sound": "steps/metal",
+    "place-sound": "blocks/metal_place",
+    "break-sound": "blocks/metal_break"
+}

res/content/base/blocks/blue_lamp.json

@@ -1,4 +1,5 @@
 {
     "texture": "blue_lamp",
-    "emission": [0, 0, 15]
-}
+    "emission": [0, 0, 15],
+    "material": "base:glass"
+}

res/content/base/blocks/green_lamp.json

@@ -1,4 +1,5 @@
 {
     "texture": "green_lamp",
-    "emission": [0, 15, 0]
-}
+    "emission": [0, 15, 0],
+    "material": "base:glass"
+}

res/content/base/blocks/lightbulb.json

@@ -6,5 +6,6 @@
     "hitbox": [0.25, 0.0, 0.25, 0.5, 0.5, 0.5],
     "rotation": "pipe",
     "light-passing": true,
-    "sky-light-passing": true
+    "sky-light-passing": true,
+    "material": "base:glass"
 }

res/content/base/blocks/metal.json

@@ -1,3 +1,4 @@
 {
-    "texture": "metal"
-}
+    "texture": "metal",
+    "material": "base:metal"
+}

res/content/base/blocks/pipe.json

@@ -10,5 +10,6 @@
     "model": "aabb",
     "hitbox": [0.25, 0.0, 0.25, 0.5, 1.0, 0.5],
     "light-passing": true,
-    "rotation": "pipe"
+    "rotation": "pipe",
+    "material": "base:metal"
 }

res/content/base/blocks/red_lamp.json

@@ -1,4 +1,5 @@
 {
     "texture": "red_lamp",
-    "emission": [15, 0, 0]
-}
+    "emission": [15, 0, 0],
+    "material": "base:glass"
+}

res/content/base/blocks/rust.json

@@ -1,3 +1,4 @@
 {
-    "texture": "rust"
-}
+    "texture": "rust",
+    "material": "base:metal"
+}