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area of interest(AOI), Navigation-Mesh
I guess I found some bugs
Something goes wrong while divide > 3.
see the code:
Is there anything wrong with myself?
local laoi = require "laoi"
for divide = 1, 10 do
local map = laoi.new_map({512, 512}, divide)
local unitA = laoi.new_unit(1, {56, 29})
map:unit_add(unitA)
local unitB = laoi.new_unit(2, {72, 31})
map:unit_add(unitB)
table.foreach(map:unit_search(unitA, 30), function(unitId, unit)
print(string.format("divide=%d,unitId=%d", divide, unitId))
end)
end
a nice lib!
but it can't be compatible with c89(and only on Mac?)
I made some changes, and add a lib for lua-wrap(so far so good) test.lua
It can be run on Mac/Linux(see Makefile) /Windows(msvc_build.bat)
see changes
considering cross-platform, use c89 style please.
maybe you need this args for gcc or clang compiling
-Werror=declaration-after-statement -std=c89
/* 搜集树上的所有单元 */
void imapcollectunit
....
unit = node->units;
for (;unit;unit=unit->next) {
这个 units链表中节点的next自己指向了自己,导致死循环。
(gdb) p unit
$8 = (iunit *) 0x7fffee67a618
(gdb) p unit->next
$9 = (struct iunit *) 0x7fffee67a618
(gdb) p unit->pre
$10 = (struct iunit *) 0x7fffee67a618
(gdb) p unit->node->units
$16 = (struct iunit *) 0x7fffee67a618
(gdb) p unit->next->next
$17 = (struct iunit *) 0x7fffee67a618
(gdb) p unit->next->next->next
$18 = (struct iunit *) 0x7fffee67a618
以上的问题是偶现的,由于逻辑有点复杂,暂时还没定位到问题,初步估计是 节点重复list_add_front(node->units, unit)导致的。
in laoi.c
see line 4,5
#include </usr/local/include/lua.h>
#include </usr/local/include/lauxlib.h>
please use
#include <lua.h>
#include <lauxlib.h>
`
/* 获取可能存在数据的节点 */
for (i=0; i<4; ++i) {
tpos.x = offsets[2*i];
tpos.y = offsets[2*i+1];
/* 跟刚刚一样的节点 */
if (tnode && tpos.x >= tnode->code.pos.x
&& (tnode->code.pos.x + map->nodesizes[tnode->level].w > tpos.x)
&& tpos.y >= tnode->code.pos.y
&& (tnode->code.pos.y + map->nodesizes[tnode->level].h > tpos.y)) {
continue;
}
`
这里tnode一直是null,没有赋值,那if tnode的判断是多余了,还是有bug?
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