add core:obstacle block & move cameras from base to core & add new generator

res/content/base/generators/demo.lua

@@ -0,0 +1,86 @@
+sea_level = 64
+
+-- 1 - temperature
+-- 2 - humidity
+biome_parameters = 2
+
+biomes = json.parse(file.read("base:generators/demo/biomes.json"))
+
+function place_structures(x, z, w, d, seed, hmap)
+    local placements = {}
+    for i=1,10 do
+        local sx = math.random() * w
+        local sz = math.random() * d
+        local sy = math.random() * 128
+        if sy < hmap:at(sx, sz) * 256 - 6 then
+            table.insert(placements, {"coal_ore0", {sx, sy, sz}, math.random()*4})
+        end
+    end
+    return placements
+end
+
+local function _generate_heightmap(x, y, w, h, seed, s)
+    local umap = Heightmap(w, h)
+    local vmap = Heightmap(w, h)
+    umap.noiseSeed = seed
+    vmap.noiseSeed = seed
+    vmap:noise({x+521, y+70}, 0.1*s, 3, 25.8)
+    vmap:noise({x+95, y+246}, 0.15*s, 3, 25.8)
+
+    local map = Heightmap(w, h)
+    map.noiseSeed = seed
+    map:noise({x, y}, 0.8*s, 4, 0.02)
+    map:cellnoise({x, y}, 0.1*s, 3, 0.3, umap, vmap)
+    map:add(0.4)
+
+    local rivermap = Heightmap(w, h)
+    rivermap.noiseSeed = seed
+    rivermap:noise({x+21, y+12}, 0.1*s, 4)
+    rivermap:abs()
+    rivermap:mul(2.0)
+    rivermap:pow(0.15)
+    rivermap:max(0.3)
+    map:add(0.3)
+    map:mul(rivermap)
+    return map
+end
+
+function generate_heightmap(x, y, w, h, seed)
+    -- blocks per dot
+    -- 8 - linear interpolation is visible, but not so much
+    -- 4 - high quality, but slower
+    -- 2 - you really don't need it
+    -- 1 - please have mercy on your CPU
+    local bpd = 4
+    local map = _generate_heightmap(
+        math.floor(x/bpd), math.floor(y/bpd), 
+        math.floor(w/bpd)+1, math.floor(h/bpd)+1, seed, bpd)
+    map:resize(w+bpd, h+bpd, 'linear')
+    map:crop(0, 0, w, h)
+    return map
+end
+
+local function _generate_biome_parameters(x, y, w, h, seed, s)
+    local tempmap = Heightmap(w, h)
+    tempmap.noiseSeed = seed + 5324
+    tempmap:noise({x, y}, 0.04*s, 6)
+    local hummap = Heightmap(w, h)
+    hummap.noiseSeed = seed + 953
+    hummap:noise({x, y}, 0.04*s, 6)
+    tempmap:pow(3)
+    hummap:pow(3)
+    return tempmap, hummap
+end
+
+function generate_biome_parameters(x, y, w, h, seed)
+    local bpd = 8
+    local tmap, hmap = _generate_biome_parameters(
+        math.floor(x/bpd), math.floor(y/bpd), 
+        math.floor(w/bpd)+1, math.floor(h/bpd)+1, seed, bpd) 
+    tmap:resize(w+bpd, h+bpd, 'linear')
+    tmap:crop(0, 0, w, h)
+
+    hmap:resize(w+bpd, h+bpd, 'linear')
+    hmap:crop(0, 0, w, h)
+    return tmap, hmap
+end

res/content/base/generators/demo/biomes.json

@@ -0,0 +1,68 @@
+{
+    "forest": {
+        "parameters": [
+            {"weight": 1, "value": 1},
+            {"weight": 0.5, "value": 0.2}
+        ],
+        "layers": [
+            {"below_sea_level": false, "height": 1, "block": "base:grass_block"},
+            {"below_sea_level": false, "height": 7, "block": "base:dirt"},
+            {"height": -1, "block": "base:stone"},
+            {"height": 1, "block": "base:bazalt"}
+        ],
+        "sea_layers": [
+            {"height": -1, "block": "base:water"}
+        ],
+        "plant_chance": 0.4,
+        "plants": [
+            {"weight": 1, "block": "base:grass"},
+            {"weight": 0.03, "block": "base:flower"}
+        ],
+        "structure_chance": 0.032,
+        "structures": [
+            {"name": "tree0", "weight": 1},
+            {"name": "tree1", "weight": 1},
+            {"name": "tree2", "weight": 1},
+            {"name": "tower", "weight": 0.002}
+        ]
+    },
+    "desert": {
+        "parameters": [
+            {"weight": 0.1, "value": 0},
+            {"weight": 0.1, "value": 0}
+        ],
+        "layers": [
+            {"height": 6, "block": "base:sand"},
+            {"height": -1, "block": "base:stone"},
+            {"height": 1, "block": "base:bazalt"}
+        ],
+        "sea_layers": [
+            {"height": -1, "block": "base:water"}
+        ]
+    },
+    "plains": {
+        "parameters": [
+            {"weight": 0.6, "value": 0.5},
+            {"weight": 0.6, "value": 0.5}
+        ],
+        "layers": [
+            {"below_sea_level": false, "height": 1, "block": "base:grass_block"},
+            {"below_sea_level": false, "height": 5, "block": "base:dirt"},
+            {"height": -1, "block": "base:stone"},
+            {"height": 1, "block": "base:bazalt"}
+        ],
+        "sea_layers": [
+            {"height": -1, "block": "base:water"}
+        ],
+        "plant_chance": 0.3,
+        "plants": [
+            {"weight": 1, "block": "base:grass"},
+            {"weight": 0.03, "block": "base:flower"}
+        ],
+        "structure_chance": 0.0001,
+        "structures": [
+            {"name": "tree0", "weight": 1},
+            {"name": "tree1", "weight": 1}
+        ]
+    }
+}

res/content/base/generators/demo/structures.json

@@ -0,0 +1,7 @@
+{
+    "tree0": {},
+    "tree1": {},
+    "tree2": {},
+    "tower": {},
+    "coal_ore0": {}
+}

res/content/base/preload.json

@@ -7,13 +7,6 @@
     "models": [
         "drop-item"
     ],
-    "shaders": [
-        "ui3d",
-        "entity",
-        "screen",
-        "background",
-        "skybox_gen"
-    ],
     "textures": [
         "misc/moon",
         "misc/sun",

res/content/base/resources.json

@@ -1,8 +0,0 @@
-{
-    "camera": [
-        "first-person",
-        "third-person-front",
-        "third-person-back",
-        "cinematic"
-    ]
-}