block tick event

src/logic/BlocksController.cpp

@@ -118,6 +118,37 @@ void BlocksController::onBlocksTick(int tickid, int parts) {
             scripting::on_blocks_tick(def, tickRate / interval);
         }
     }
+    static int gtick = 0;
+    if (tickid == 0) {
+        gtick++;
+    }
+    const int w = chunks->w;
+    const int d = chunks->d;
+    for (uint z = padding; z < d-padding; z++){
+        for (uint x = padding; x < w-padding; x++){
+            int index = z * w + x;
+            if ((index + tickid) % parts != 0)
+                continue;
+            auto& chunk = chunks->chunks[index];
+            if (chunk == nullptr || !chunk->flags.lighted)
+                continue;
+            auto updatingBlocks = chunk->updatingBlocks;
+            for (uint block_index : updatingBlocks) {
+                auto def = indices->getBlockDef(chunk->voxels[block_index].id);
+                if (((gtick + tickid) / parts) % def->tickInterval != 0)
+                    continue;
+                int lx = block_index % CHUNK_W;
+                int lz = (block_index/CHUNK_W) % CHUNK_D;
+                int ly = block_index/CHUNK_W/CHUNK_D;
+                scripting::on_block_tick(
+                    def, 
+                    lx + chunk->x * CHUNK_W, 
+                    ly, 
+                    lz + chunk->z * CHUNK_D
+                );
+            }
+        }
+    }
 }
 
 void BlocksController::randomTick(int tickid, int parts) {

src/logic/scripting/scripting.cpp

@@ -158,6 +158,14 @@ void scripting::on_blocks_tick(const Block* block, int tps) {
     });
 }
 
+void scripting::on_block_tick(const Block* block, int x, int y, int z) {
+    std::string name = block->name + ".blocktick";
+    state->emit_event(name, [x, y, z] (lua::LuaState* state) {
+        state->pushivec3(x, y, z);
+        return 3; 
+    });
+}
+
 void scripting::update_block(const Block* block, int x, int y, int z) {
     std::string name = block->name + ".update";
     state->emit_event(name, [x, y, z] (lua::LuaState* state) {
@@ -290,6 +298,7 @@ void scripting::load_block_script(scriptenv senv, std::string prefix, fs::path f
     funcsset.onbroken = register_event(env, "on_broken", prefix+".broken");
     funcsset.onplaced = register_event(env, "on_placed", prefix+".placed");
     funcsset.oninteract = register_event(env, "on_interact", prefix+".interact");
+    funcsset.onblocktick = register_event(env, "on_block_tick", prefix+".blocktick");
     funcsset.onblockstick = register_event(env, "on_blocks_tick", prefix+".blockstick");
 }
 

src/logic/scripting/scripting.hpp

@@ -54,6 +54,7 @@ namespace scripting {
     void on_world_save();
     void on_world_quit();
     void on_blocks_tick(const Block* block, int tps);
+    void on_block_tick(const Block* block, int x, int y, int z);
     void update_block(const Block* block, int x, int y, int z);
     void random_update_block(const Block* block, int x, int y, int z);
     void on_block_placed(Player* player, const Block* block, int x, int y, int z);

src/voxels/Block.hpp

@@ -31,6 +31,7 @@ struct block_funcs_set {
     bool onbroken: 1;
     bool oninteract: 1;
     bool randupdate: 1;
+    bool onblocktick: 1;
     bool onblockstick: 1;
 };
 

src/voxels/Chunk.cpp

@@ -1,6 +1,7 @@
 #include "Chunk.hpp"
 
 #include "voxel.hpp"
+#include "Block.hpp"
 
 #include "../items/Inventory.hpp"
 #include "../content/ContentLUT.hpp"
@@ -117,6 +118,16 @@ bool Chunk::decode(const ubyte* data) {
     return true;
 }
 
+void Chunk::onLoad(const Content* content) {
+    auto contentIds = content->getIndices();
+    for (uint i = 0; i < CHUNK_VOL; i++) {
+        auto def = contentIds->getBlockDef(voxels[i].id);
+        if (def->rt.funcsset.onblocktick) {
+            updatingBlocks.push_front(i);
+        }
+    }
+}
+
 void Chunk::convert(ubyte* data, const ContentLUT* lut) {
     for (uint i = 0; i < CHUNK_VOL; i++) {
         // see encode method to understand what the hell is going on here

src/voxels/Chunk.hpp

@@ -3,6 +3,7 @@
 
 #include <memory>
 #include <stdlib.h>
+#include <forward_list>
 #include <unordered_map>
 
 #include "../constants.hpp"
@@ -14,6 +15,7 @@ inline constexpr int CHUNK_DATA_LEN = CHUNK_VOL*4;
 class Lightmap;
 class ContentLUT;
 class Inventory;
+class Content;
 
 using chunk_inventories_map = std::unordered_map<uint, std::shared_ptr<Inventory>>;
 
@@ -31,9 +33,10 @@ public:
         bool unsaved: 1;
         bool loadedLights: 1;
     } flags {};
-
-    /* Block inventories map where key is index of block in voxels array */
+    /// @brief Block inventories map where key is index of block in voxels array
     chunk_inventories_map inventories;
+    /// @brief Interval-updating blocks list
+    std::forward_list<uint> updatingBlocks;
 
     Chunk(int x, int z);
 
@@ -44,14 +47,14 @@ public:
     // unused
     std::unique_ptr<Chunk> clone() const;
 
-    /* Creates new block inventory given size
-       @return inventory id or 0 if block does not exists */
+    /// @brief Creates new block inventory given size
+    /// @return inventory id or 0 if block does not exists
     void addBlockInventory(std::shared_ptr<Inventory> inventory, 
                            uint x, uint y, uint z);
     void removeBlockInventory(uint x, uint y, uint z);
     void setBlockInventories(chunk_inventories_map map);
 
-    /* @return inventory bound to the given block or nullptr */
+    /// @return inventory bound to the given block or nullptr
     std::shared_ptr<Inventory> getBlockInventory(uint x, uint y, uint z) const;
 
     inline void setModifiedAndUnsaved() {
@@ -61,12 +64,12 @@ public:
 
     std::unique_ptr<ubyte[]> encode() const;
 
-    /**
-     * @return true if all is fine
-     **/
+    /// @return true if all is fine
     bool decode(const ubyte* data);
 
+    void onLoad(const Content* content);
+
     static void convert(ubyte* data, const ContentLUT* lut);
 };
 
-#endif /* VOXELS_CHUNK_HPP_ */
+#endif // VOXELS_CHUNK_HPP_

src/voxels/Chunks.cpp

@@ -119,25 +119,6 @@ ubyte Chunks::getLight(int32_t x, int32_t y, int32_t z, int channel){
     return chunk->lightmap.get(lx, ly, lz, channel);
 }
 
-light_t Chunks::getLight(int32_t x, int32_t y, int32_t z){
-    x -= ox * CHUNK_W;
-    z -= oz * CHUNK_D;
-    int cx = floordiv(x, CHUNK_W);
-    int cy = floordiv(y, CHUNK_H);
-    int cz = floordiv(z, CHUNK_D);
-    if (cx < 0 || cy < 0 || cz < 0 || cx >= int(w) || cy >= 1 || cz >= int(d)) {
-        return 0;
-    }
-    const auto& chunk = chunks[(cy * d + cz) * w + cx];
-    if (chunk == nullptr) {
-        return 0;
-    }
-    int lx = x - cx * CHUNK_W;
-    int ly = y - cy * CHUNK_H;
-    int lz = z - cz * CHUNK_D;
-    return chunk->lightmap.get(lx,ly,lz);
-}
-
 Chunk* Chunks::getChunkByVoxel(int32_t x, int32_t y, int32_t z) {
     if (y < 0 || y >= CHUNK_H)
         return nullptr;
@@ -159,28 +140,45 @@ Chunk* Chunks::getChunk(int x, int z){
 }
 
 void Chunks::set(int32_t x, int32_t y, int32_t z, uint32_t id, blockstate state) {
-    if (y < 0 || y >= CHUNK_H)
+    if (y < 0 || y >= CHUNK_H) {
         return;
+    }
     x -= ox * CHUNK_W;
     z -= oz * CHUNK_D;
     int cx = floordiv(x, CHUNK_W);
     int cz = floordiv(z, CHUNK_D);
-    if (cx < 0 || cz < 0 || cx >= int(w) || cz >= int(d))
+    if (cx < 0 || cz < 0 || cx >= int(w) || cz >= int(d)) {
         return;
+    }
     Chunk* chunk = chunks[cz * w + cx].get();
     if (chunk == nullptr)
         return;
     int lx = x - cx * CHUNK_W;
     int lz = z - cz * CHUNK_D;
+    int index = vox_index(lx, y, lz);
     
-    voxel& vox = chunk->voxels[(y * CHUNK_D + lz) * CHUNK_W + lx]; 
+    voxel& vox = chunk->voxels[index]; 
+    
+    // finalizing previous block
     auto def = contentIds->getBlockDef(vox.id);
-    if (def->inventorySize == 0)
+    if (def->inventorySize == 0) {
         chunk->removeBlockInventory(lx, y, lz);
+    }
+    if (def->rt.funcsset.onblocktick) {
+        chunk->updatingBlocks.remove(index);
+    }
+
+    // initializing new block
     vox.id = id;
     vox.state = state;
     chunk->setModifiedAndUnsaved();
 
+    auto new_def = contentIds->getBlockDef(id);
+    if (new_def->rt.funcsset.onblocktick) {
+        chunk->updatingBlocks.push_front(index);
+    }
+
+    // updating chunks
     if (y < chunk->bottom) chunk->bottom = y;
     else if (y + 1 > chunk->top) chunk->top = y + 1;
     else if (id == 0) chunk->updateHeights();
@@ -475,11 +473,6 @@ void Chunks::resize(uint32_t newW, uint32_t newD) {
     chunksSecond = std::move(newChunksSecond);
 }
 
-void Chunks::_setOffset(int32_t x, int32_t z) {
-    ox = x;
-    oz = z;
-}
-
 bool Chunks::putChunk(std::shared_ptr<Chunk> chunk) {
     int x = chunk->x;
     int z = chunk->z;

src/voxels/Chunks.hpp

@@ -41,7 +41,6 @@ public:
     Chunk* getChunk(int32_t x, int32_t z);
     Chunk* getChunkByVoxel(int32_t x, int32_t y, int32_t z);
     voxel* get(int32_t x, int32_t y, int32_t z);
-    light_t getLight(int32_t x, int32_t y, int32_t z);
     ubyte getLight(int32_t x, int32_t y, int32_t z, int channel);
     void set(int32_t x, int32_t y, int32_t z, uint32_t id, blockstate state);
 
@@ -61,9 +60,6 @@ public:
     bool isReplaceableBlock(int32_t x, int32_t y, int32_t z);
     bool isObstacleBlock(int32_t x, int32_t y, int32_t z);
 
-    // does not move chunks inside
-    void _setOffset(int32_t x, int32_t z);
-
     void setCenter(int32_t x, int32_t z);
     void translate(int32_t x, int32_t z);
     void resize(uint32_t newW, uint32_t newD);

src/voxels/ChunksStorage.cpp

@@ -59,6 +59,7 @@ std::shared_ptr<Chunk> ChunksStorage::create(int x, int z) {
 	auto data = regions.getChunk(chunk->x, chunk->z);
 	if (data) {
 		chunk->decode(data.get());
+        chunk->onLoad(level->content);
 		auto invs = regions.fetchInventories(chunk->x, chunk->z);
 		chunk->setBlockInventories(std::move(invs));
         chunk->flags.loaded = true;