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Better snow fall, finite liquid transform, leveled nodes api

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proller committed Jul 28, 2013
1 parent 3aedfac commit 037e84d377e91f37026cb5814145bdceac135534
Showing with 88 additions and 29 deletions.
  1. +10 −1 builtin/falling.lua
  2. +2 −0 doc/lua_api.txt
  3. +6 −9 src/content_abm.cpp
  4. +15 −8 src/map.cpp
  5. +29 −9 src/mapnode.cpp
  6. +3 −1 src/mapnode.h
  7. +19 −1 src/script/lua_api/l_env.cpp
  8. +4 −0 src/script/lua_api/l_env.h
@@ -59,7 +59,14 @@ minetest.register_entity("__builtin:falling_node", {
minetest.registered_nodes[bcn.name].walkable or
(minetest.get_node_group(self.node.name, "float") ~= 0 and minetest.registered_nodes[bcn.name].liquidtype ~= "none")
then
if minetest.registered_nodes[bcn.name].buildable_to and (minetest.get_node_group(self.node.name, "float") == 0 or minetest.registered_nodes[bcn.name].liquidtype == "none") then
if minetest.registered_nodes[bcn.name].leveled and bcn.name == self.node.name then
local addlevel = self.node.level
if addlevel == nil or addlevel <= 0 then addlevel = minetest.registered_nodes[bcn.name].leveled end
if minetest.env:add_node_level(bcp, addlevel) == 0 then
self.object:remove()
return
end
elseif minetest.registered_nodes[bcn.name].buildable_to and (minetest.get_node_group(self.node.name, "float") == 0 or minetest.registered_nodes[bcn.name].liquidtype == "none") then
minetest.remove_node(bcp)
return
end
@@ -152,11 +159,13 @@ function nodeupdate_single(p, delay)
-- Note: walkable is in the node definition, not in item groups
if minetest.registered_nodes[n_bottom.name] and
(minetest.get_node_group(n.name, "float") == 0 or minetest.registered_nodes[n_bottom.name].liquidtype == "none") and
(n.name ~= n_bottom.name or (minetest.registered_nodes[n_bottom.name].leveled and minetest.env:get_node_level(p_bottom) < minetest.env:get_node_max_level(p_bottom))) and
(not minetest.registered_nodes[n_bottom.name].walkable or
minetest.registered_nodes[n_bottom.name].buildable_to) then
if delay then
minetest.after(0.1, nodeupdate_single, {x=p.x, y=p.y, z=p.z}, false)
else
n.level = minetest.env:get_node_level(p)
minetest.remove_node(p)
spawn_falling_node(p, n)
nodeupdate(p)
@@ -1268,6 +1268,8 @@ minetest.get_node_max_level(pos)
^ get max available level for leveled node
minetest.get_node_level(pos)
^ get level of leveled node (water, snow)
minetest.set_node_level(pos, level)
^ set level of leveled node, default level = 1, if totallevel > maxlevel returns rest (total-max).
minetest.add_node_level(pos, level)
^ increase level of leveled node by level, default level = 1, if totallevel > maxlevel returns rest (total-max). can be negative for decreasing
minetest.get_heat(pos)
@@ -285,7 +285,7 @@ class LiquidFreeze : public ActiveBlockModifier {
}
}
if (allow) {
n.setContent(ndef->getId(ndef->get(n).freezemelt));
n.freezeMelt(ndef);
map->addNodeWithEvent(p, n);
}
}
@@ -316,9 +316,7 @@ class LiquidMeltWeather : public ActiveBlockModifier {

float heat = map->getHeat(env, p);
if (heat >= 1 && (heat >= 40 || ((myrand_range(heat, 40)) >= 20))) {
n.setContent(ndef->getId(ndef->get(n).freezemelt));
if (!n.getLevel(ndef))
n.addLevel(ndef);
n.freezeMelt(ndef);
map->addNodeWithEvent(p, n);
env->getScriptIface()->node_falling_update(p);
}
@@ -346,14 +344,13 @@ class LiquidMeltHot : public ActiveBlockModifier {
virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
ServerMap *map = &env->getServerMap();
INodeDefManager *ndef = env->getGameDef()->ndef();
n.setContent(ndef->getId(ndef->get(n).freezemelt));
if (!n.getLevel(ndef))
n.addLevel(ndef);
n.freezeMelt(ndef);
map->addNodeWithEvent(p, n);
env->getScriptIface()->node_falling_update(p);
}
};

/* too buggy, later via liquid flow code
class LiquidMeltAround : public LiquidMeltHot {
public:
LiquidMeltAround(ServerEnvironment *env, INodeDefManager *nodemgr)
@@ -368,7 +365,7 @@ class LiquidMeltAround : public LiquidMeltHot {
virtual u32 getTriggerChance()
{ return 60; }
};

*/

void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef) {
env->addActiveBlockModifier(new GrowGrassABM());
@@ -378,7 +375,7 @@ void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef) {
env->addActiveBlockModifier(new LiquidFlowABM(env, nodedef));
env->addActiveBlockModifier(new LiquidDropABM(env, nodedef));
env->addActiveBlockModifier(new LiquidMeltHot(env, nodedef));
env->addActiveBlockModifier(new LiquidMeltAround(env, nodedef));
//env->addActiveBlockModifier(new LiquidMeltAround(env, nodedef));
if (g_settings->getBool("weather")) {
env->addActiveBlockModifier(new LiquidFreeze(env, nodedef));
env->addActiveBlockModifier(new LiquidMeltWeather(env, nodedef));
@@ -1717,7 +1717,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
if (liquid_kind == CONTENT_IGNORE)
liquid_kind = nb.n.getContent();
if (nb.n.getContent() == liquid_kind) {
liquid_levels[i] = LIQUID_LEVEL_SOURCE;
liquid_levels[i] = nb.n.getLevel(nodemgr); //LIQUID_LEVEL_SOURCE;
nb.l = 1;
nb.i = (nb.n.param2 & LIQUID_INFINITY_MASK);
}
@@ -1731,7 +1731,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
liquid_kind = nodemgr->getId(
nodemgr->get(nb.n).liquid_alternative_source);
if (nb.n.getContent() == liquid_kind_flowing) {
liquid_levels[i] = (nb.n.param2 & LIQUID_LEVEL_MASK);
liquid_levels[i] = nb.n.getLevel(nodemgr); //(nb.n.param2 & LIQUID_LEVEL_MASK);
nb.l = 1;
}
break;
@@ -1849,7 +1849,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
<< (int)liquid_levels_want[D_BOTTOM]<<std::endl;
*/

u8 changed = 0;
//u8 changed = 0;
for (u16 i = 0; i < 7; i++) {
if (liquid_levels_want[i] < 0 || !neighbors[i].l)
continue;
@@ -1881,7 +1881,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
new_node_content = liquid_kind_flowing;
else
new_node_content = CONTENT_AIR;

// last level must flow down on stairs
if (liquid_levels_want[i] != liquid_levels[i] &&
liquid_levels[D_TOP] <= 0 && !neighbors[D_BOTTOM].l &&
@@ -1896,10 +1896,11 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
check if anything has changed.
if not, just continue with the next node.
*/
/*
if (
new_node_content == n0.getContent()
&& (nodemgr->get(n0.getContent()).liquid_type != LIQUID_FLOWING ||
((n0.param2 & LIQUID_LEVEL_MASK) == (u8)new_node_level
(n0.getLevel(nodemgr) == (u8)new_node_level
//&& ((n0.param2 & LIQUID_FLOW_DOWN_MASK) ==
//LIQUID_FLOW_DOWN_MASK) == flowing_down
))
@@ -1908,28 +1909,34 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
(((n0.param2 & LIQUID_INFINITY_MASK) ==
LIQUID_INFINITY_MASK) == neighbors[i].i
))
) {
)*/
if (liquid_levels[i] == new_node_level)
{
continue;
}
++changed;

//++changed;

/*
update the current node
*/
/*
if (nodemgr->get(new_node_content).liquid_type == LIQUID_FLOWING) {
// set level to last 3 bits, flowing down bit to 4th bit
n0.param2 = (new_node_level & LIQUID_LEVEL_MASK);
} else if (nodemgr->get(new_node_content).liquid_type == LIQUID_SOURCE) {
//n0.param2 = ~(LIQUID_LEVEL_MASK | LIQUID_FLOW_DOWN_MASK);
n0.param2 = (neighbors[i].i ? LIQUID_INFINITY_MASK : 0x00);
}
*/
/*
infostream << "set node i=" <<(int)i<<" "<< PP(p0)<< " nc="
<<new_node_content<< " p2="<<(int)n0.param2<< " nl="
<<(int)new_node_level<<std::endl;
*/

n0.setContent(new_node_content);
n0.setContent(liquid_kind_flowing);
n0.setLevel(nodemgr, new_node_level);
// Find out whether there is a suspect for this action
std::string suspect;
if(m_gamedef->rollback()){
@@ -364,9 +364,7 @@ u8 MapNode::getMaxLevel(INodeDefManager *nodemgr) const
{
const ContentFeatures &f = nodemgr->get(*this);
// todo: after update in all games leave only if (f.param_type_2 ==
if( f.liquid_type == LIQUID_SOURCE
|| f.liquid_type == LIQUID_FLOWING
|| f.param_type_2 == CPT2_FLOWINGLIQUID)
if( f.liquid_type == LIQUID_FLOWING || f.param_type_2 == CPT2_FLOWINGLIQUID)
return LIQUID_LEVEL_MAX;
if(f.leveled || f.param_type_2 == CPT2_LEVELED)
return LEVELED_MAX;
@@ -392,12 +390,9 @@ u8 MapNode::getLevel(INodeDefManager *nodemgr) const
return 0;
}

u8 MapNode::addLevel(INodeDefManager *nodemgr, s8 add)
u8 MapNode::setLevel(INodeDefManager *nodemgr, s8 level)
{
s8 level = getLevel(nodemgr);
u8 rest = 0;
if (add == 0) level = 1;
level += add;
if (level < 1) {
setContent(CONTENT_AIR);
return 0;
@@ -406,8 +401,8 @@ u8 MapNode::addLevel(INodeDefManager *nodemgr, s8 add)
if ( f.param_type_2 == CPT2_FLOWINGLIQUID
|| f.liquid_type == LIQUID_FLOWING
|| f.liquid_type == LIQUID_SOURCE) {
if (level >= LIQUID_LEVEL_MAX) {
rest = level - LIQUID_LEVEL_MAX;
if (level >= LIQUID_LEVEL_SOURCE) {
rest = level - LIQUID_LEVEL_SOURCE;
setContent(nodemgr->getId(f.liquid_alternative_source));
} else {
setContent(nodemgr->getId(f.liquid_alternative_flowing));
@@ -423,6 +418,31 @@ u8 MapNode::addLevel(INodeDefManager *nodemgr, s8 add)
return rest;
}

u8 MapNode::addLevel(INodeDefManager *nodemgr, s8 add)
{
s8 level = getLevel(nodemgr);
if (add == 0) level = 1;
level += add;
return setLevel(nodemgr, level);
}

void MapNode::freezeMelt(INodeDefManager *ndef) {
u8 level_was_max = this->getMaxLevel(ndef);
u8 level_was = this->getLevel(ndef);
this->setContent(ndef->getId(ndef->get(*this).freezemelt));
u8 level_now_max = this->getMaxLevel(ndef);
if (level_was_max && level_was_max != level_now_max) {
u8 want = (float)level_now_max / level_was_max * level_was;
if (!want)
want = 1;
if (want != level_was)
this->setLevel(ndef, want);
//errorstream<<"was="<<(int)level_was<<"/"<<(int)level_was_max<<" nowm="<<(int)want<<"/"<<(int)level_now_max<< " => "<<(int)this->getLevel(ndef)<< std::endl;
}
if (this->getMaxLevel(ndef) && !this->getLevel(ndef))
this->addLevel(ndef);
}

u32 MapNode::serializedLength(u8 version)
{
if(!ser_ver_supported(version))
@@ -104,7 +104,7 @@ enum Rotation {
#define LIQUID_INFINITY_MASK 0x80 //0b10000000

// mask for param2, now as for liquid
#define LEVELED_MASK 0x07
#define LEVELED_MASK 0x3F
#define LEVELED_MAX LEVELED_MASK

/*
@@ -229,7 +229,9 @@ struct MapNode
/* Liquid helpers */
u8 getMaxLevel(INodeDefManager *nodemgr) const;
u8 getLevel(INodeDefManager *nodemgr) const;
u8 setLevel(INodeDefManager *nodemgr, s8 level = 1);
u8 addLevel(INodeDefManager *nodemgr, s8 add = 1);
void freezeMelt(INodeDefManager *nodemgr);

/*
Serialization functions
@@ -287,9 +287,26 @@ int ModApiEnvMod::l_get_node_level(lua_State *L)
return 1;
}

// minetest.set_node_level(pos, level)
// pos = {x=num, y=num, z=num}
// level: 0..63
int ModApiEnvMod::l_set_node_level(lua_State *L)
{
GET_ENV_PTR;

v3s16 pos = read_v3s16(L, 1);
u8 level = 1;
if(lua_isnumber(L, 2))
level = lua_tonumber(L, 2);
MapNode n = env->getMap().getNodeNoEx(pos);
lua_pushnumber(L, n.setLevel(env->getGameDef()->ndef(), level));
env->setNode(pos, n);
return 1;
}

// minetest.add_node_level(pos, level)
// pos = {x=num, y=num, z=num}
// level: 0..8
// level: 0..63
int ModApiEnvMod::l_add_node_level(lua_State *L)
{
GET_ENV_PTR;
@@ -913,6 +930,7 @@ bool ModApiEnvMod::Initialize(lua_State *L,int top)
retval &= API_FCT(punch_node);
retval &= API_FCT(get_node_max_level);
retval &= API_FCT(get_node_level);
retval &= API_FCT(set_node_level);
retval &= API_FCT(add_node_level);
retval &= API_FCT(add_entity);
retval &= API_FCT(get_meta);
@@ -76,6 +76,10 @@ class ModApiEnvMod
// pos = {x=num, y=num, z=num}
static int l_get_node_level(lua_State *L);

// minetest.set_node_level(pos)
// pos = {x=num, y=num, z=num}
static int l_set_node_level(lua_State *L);

// minetest.add_node_level(pos)
// pos = {x=num, y=num, z=num}
static int l_add_node_level(lua_State *L);

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