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RegionPager's API now takes a pager as an optional first parameter to all methods

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This commit is contained in:
Kayne Ruse
2016-11-27 22:29:49 +11:00
parent 4f9b8695bd
commit d6672e59d0
1 changed files with 60 additions and 72 deletions
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region_pager_api.cpp
+60 -72
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@@ -27,124 +27,124 @@
#include <stdexcept>
//DOCS: These glue functions simply wrap RegionPagerLua's methods
//DOCS: These functions take a pager as an optional first parameter
//NOTE: zero indexing is used here, but not in the region API
static int setTile(lua_State* L) {
//get the global pager
static RegionPagerLua* getPager(lua_State* L) {
RegionPagerLua* pager = nullptr;
//get the pager, either the global pager or the parameter pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
if (lua_isnil(L, -1)) {
pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
}
else {
pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
}
lua_pop(L, 1);
return pager;
}
static int setTile(lua_State* L) {
//get the pager
RegionPagerLua* pager = getPager(L);
//set tile
int ret = pager->SetTile(lua_tointeger(L, 1), lua_tointeger(L, 2), lua_tointeger(L, 3), lua_tointeger(L, 4));
int ret = pager->SetTile(lua_tointeger(L, -4), lua_tointeger(L, -3), lua_tointeger(L, -2), lua_tointeger(L, -1));
lua_pushinteger(L, ret);
return 1;
}
static int getTile(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//get tile
int ret = pager->GetTile(lua_tointeger(L, 1), lua_tointeger(L, 2), lua_tointeger(L, 3));
int ret = pager->GetTile(lua_tointeger(L, -3), lua_tointeger(L, -2), lua_tointeger(L, -1));
lua_pushinteger(L, ret);
return 1;
}
static int setSolid(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//set solid
bool ret = pager->SetSolid(lua_tointeger(L, 1), lua_tointeger(L, 2), lua_toboolean(L, 3));
bool ret = pager->SetSolid(lua_tointeger(L, -3), lua_tointeger(L, -2), lua_toboolean(L, -1));
lua_pushboolean(L, ret);
return 1;
}
static int getSolid(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//get solid
bool ret = pager->GetSolid(lua_tointeger(L, 1), lua_tointeger(L, 2));
bool ret = pager->GetSolid(lua_tointeger(L, -2), lua_tointeger(L, -1));
lua_pushboolean(L, ret);
return 1;
}
static int getRegion(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//get region
Region* region = pager->GetRegion(lua_tointeger(L, 1), lua_tointeger(L, 2));
Region* region = pager->GetRegion(lua_tointeger(L, -2), lua_tointeger(L, -1));
lua_pushlightuserdata(L, region);
return 1;
}
static int loadRegion(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//load region
Region* region = pager->LoadRegion(lua_tointeger(L, 1), lua_tointeger(L, 2));
Region* region = pager->LoadRegion(lua_tointeger(L, -2), lua_tointeger(L, -1));
lua_pushlightuserdata(L, region);
return 1;
}
static int saveRegion(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//save region
Region* region = pager->SaveRegion(lua_tointeger(L, 1), lua_tointeger(L, 2));
Region* region = pager->SaveRegion(lua_tointeger(L, -2), lua_tointeger(L, -1));
lua_pushlightuserdata(L, region);
return 1;
}
static int createRegion(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//create region
Region* region = pager->CreateRegion(lua_tointeger(L, 1), lua_tointeger(L, 2));
Region* region = pager->CreateRegion(lua_tointeger(L, -2), lua_tointeger(L, -1));
lua_pushlightuserdata(L, region);
return 1;
}
static int unloadRegion(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//two argument types: coords & the region itself
switch(lua_type(L, 1)) {
switch(lua_type(L, -1)) {
case LUA_TNUMBER:
//unload using coords
pager->UnloadIf([&](Region const& region) -> bool {
int x = lua_tointeger(L, 1);
int y = lua_tointeger(L, 2);
int x = lua_tointeger(L, -2);
int y = lua_tointeger(L, -1);
return region.GetX() == x && region.GetY() == y;
});
break;
case LUA_TLIGHTUSERDATA:
//unloading using reference
pager->UnloadIf([&](Region const& region) -> bool {
return (&region) == lua_touserdata(L, 1);
return (&region) == lua_touserdata(L, -1);
});
break;
}
@@ -152,10 +152,8 @@ static int unloadRegion(lua_State* L) {
}
static int setOnLoad(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//set on load
luaL_unref(L, LUA_REGISTRYINDEX, pager->GetLoadReference());
@@ -164,10 +162,8 @@ static int setOnLoad(lua_State* L) {
}
static int setOnSave(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//set on save
luaL_unref(L, LUA_REGISTRYINDEX, pager->GetSaveReference());
@@ -176,10 +172,8 @@ static int setOnSave(lua_State* L) {
}
static int setOnCreate(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//set on create
luaL_unref(L, LUA_REGISTRYINDEX, pager->GetCreateReference());
@@ -188,10 +182,8 @@ static int setOnCreate(lua_State* L) {
}
static int setOnUnload(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//set on unload
luaL_unref(L, LUA_REGISTRYINDEX, pager->GetUnloadReference());
@@ -200,14 +192,12 @@ static int setOnUnload(lua_State* L) {
}
static int forEach(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//run the given closure on each region
pager->ForEach([L](Region& r) -> void {
lua_pushvalue(L, 1); //copy the closure passed
lua_pushvalue(L, -1); //copy the closure passed
lua_pushlightuserdata(L, &r); //push this region
//call the function, catching any errors
@@ -221,10 +211,8 @@ static int forEach(lua_State* L) {
//debugging
static int containerSize(lua_State* L) {
//get the global pager
lua_getglobal(L, REGION_PAGER_NAME);
RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, -1));
lua_pop(L, 1);
//get the pager
RegionPagerLua* pager = getPager(L);
//push container size
lua_pushinteger(L, pager->GetContainer()->size());