move block set logic to the blocks_agent

src/voxels/blocks_agent.cpp

@@ -0,0 +1,95 @@
+#include "blocks_agent.hpp"
+
+using namespace blocks_agent;
+
+template <class Storage>
+static inline void set_block(
+    Storage& chunks,
+    int32_t x,
+    int32_t y,
+    int32_t z,
+    uint32_t id,
+    blockstate state
+) {
+    if (y < 0 || y >= CHUNK_H) {
+        return;
+    }
+    const auto& indices = chunks.getContentIndices();
+    int cx = floordiv<CHUNK_W>(x);
+    int cz = floordiv<CHUNK_D>(z);
+    Chunk* chunk = get_chunk(chunks, cx, cz);
+    if (chunk == nullptr) {
+        return;
+    }
+    int lx = x - cx * CHUNK_W;
+    int lz = z - cz * CHUNK_D;
+    size_t index = vox_index(lx, y, lz);
+
+    // block finalization
+    voxel& vox = chunk->voxels[(y * CHUNK_D + lz) * CHUNK_W + lx];
+    const auto& prevdef = indices.blocks.require(vox.id);
+    if (prevdef.inventorySize != 0) {
+        chunk->removeBlockInventory(lx, y, lz);
+    }
+    if (prevdef.rt.extended && !vox.state.segment) {
+        erase_segments(chunks, prevdef, vox.state, x, y, z);
+    }
+    if (prevdef.dataStruct) {
+        if (auto found = chunk->blocksMetadata.find(index)) {
+            chunk->blocksMetadata.free(found);
+            chunk->flags.unsaved = true;
+            chunk->flags.blocksData = true;
+        }
+    }
+
+    // block initialization
+    const auto& newdef = indices.blocks.require(id);
+    vox.id = id;
+    vox.state = state;
+    chunk->setModifiedAndUnsaved();
+    if (!state.segment && newdef.rt.extended) {
+        repair_segments(chunks, newdef, state, x, y, z);
+    }
+
+    if (y < chunk->bottom)
+        chunk->bottom = y;
+    else if (y + 1 > chunk->top)
+        chunk->top = y + 1;
+    else if (id == 0)
+        chunk->updateHeights();
+
+    if (lx == 0 && (chunk = get_chunk(chunks, cx - 1, cz))) {
+        chunk->flags.modified = true;
+    }
+    if (lz == 0 && (chunk = get_chunk(chunks, cx, cz - 1))) {
+        chunk->flags.modified = true;
+    }
+    if (lx == CHUNK_W - 1 && (chunk = get_chunk(chunks, cx + 1, cz))) {
+        chunk->flags.modified = true;
+    }
+    if (lz == CHUNK_D - 1 && (chunk = get_chunk(chunks, cx, cz + 1))) {
+        chunk->flags.modified = true;
+    }
+}
+
+void blocks_agent::set(
+    Chunks& chunks,
+    int32_t x,
+    int32_t y,
+    int32_t z,
+    uint32_t id,
+    blockstate state
+) {
+    set_block(chunks, x, y, z, id, state);
+}
+
+void blocks_agent::set(
+    GlobalChunks& chunks,
+    int32_t x,
+    int32_t y,
+    int32_t z,
+    uint32_t id,
+    blockstate state
+) {
+    set_block(chunks, x, y, z, id, state);
+}