mirror of
https://github.com/xtreme8000/CavEX.git
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87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*
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Copyright (c) 2022 ByteBit/xtreme8000
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This file is part of CavEX.
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CavEX is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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CavEX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with CavEX. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CHUNK_H
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#define CHUNK_H
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#include <m-lib/m-i-list.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "cglm/cglm.h"
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#include <m-lib/m-i-list.h>
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#include "block/blocks.h"
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#include "chunk_mesher.h"
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#include "platform/displaylist.h"
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#include "world.h"
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#define CHUNK_SIZE_BITS 0xF
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#define CHUNK_SIZE 16
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#define WCOORD_CHUNK_OFFSET(x) \
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((x) < 0 ? (((x) + 1) / CHUNK_SIZE - 1) : (x) / CHUNK_SIZE)
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#define CHUNK_TO_ID(x, y, z) \
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((((int64_t)(z)&0x3FFFFFFF) << 34) | (((int64_t)(x)&0x3FFFFFFF) << 4) \
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| ((int64_t)(y)&0xF))
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#define W2C_COORD(x) ((x)&CHUNK_SIZE_BITS)
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typedef uint32_t c_coord_t;
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struct chunk {
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mat4 model_view;
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w_coord_t x, y, z;
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uint8_t* blocks;
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struct displaylist mesh[13];
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bool has_displist[13];
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bool rebuild_displist;
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struct world* world;
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uint8_t reachable[6];
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size_t reference_count;
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bool has_fog;
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struct chunk_step {
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bool visited;
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enum side from;
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uint8_t used_exit_sides;
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int steps;
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} tmp_data;
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ILIST_INTERFACE(ilist_chunks, struct chunk);
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ILIST_INTERFACE(ilist_chunks2, struct chunk);
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};
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ILIST_DEF(ilist_chunks, struct chunk, M_POD_OPLIST)
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ILIST_DEF(ilist_chunks2, struct chunk, M_POD_OPLIST)
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void chunk_init(struct chunk* c, struct world* world, w_coord_t x, w_coord_t y,
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w_coord_t z);
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void chunk_ref(struct chunk* c);
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void chunk_unref(struct chunk* c);
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struct block_data chunk_get_block(struct chunk* c, c_coord_t x, c_coord_t y,
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c_coord_t z);
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struct block_data chunk_lookup_block(struct chunk* c, w_coord_t x, w_coord_t y,
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w_coord_t z);
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void chunk_set_block(struct chunk* c, c_coord_t x, c_coord_t y, c_coord_t z,
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struct block_data blk);
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bool chunk_check_built(struct chunk* c);
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void chunk_set_light(struct chunk* c, c_coord_t x, c_coord_t y, c_coord_t z,
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uint8_t light);
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void chunk_render(struct chunk* c, bool pass, float x, float y, float z);
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void chunk_pre_render(struct chunk* c, mat4 view, bool has_fog);
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#endif
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