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virtualx-engine/scene/2d/tile_map.cpp
Juan Linietsky b324ff7ea5 A bit of everything: 
-IMA-ADPCM support for samples, this means that sound effects can be compressed and use 4 timess less RAM.
-New 3D import workflow based on Wavefront OBJ. Import single objects as mesh resources instead of full scenes. Many people prefers to work this way. Just like the rest of the imported resources, these are updated in realtime if modified externally.
-Mesh resources now support naming surfaces. This helps reimporting to identify which user-created materials must be kept.
-Several fixes and improvements to SurfaceTool.
-Anti Aliasing added to WorldEnvironment effects (using FXAA)
-2D Physics bodies (RigidBody, KinematicBody, etc), Raycasts, Tilemap, etc support collision layers. This makes easy to group which objects collide against which.
-2D Trigger shapes can now also trigger collision reporting in other 2D bodies (it used to be in Area2D before)
-Viewport render target textures can now be filtered.
-Few fixes in GDscript make it easier to work with static functions and class members.
-Several and many bugfixes.
2014-05-14 01:22:15 -03:00

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/*************************************************************************/
/* tile_map.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "tile_map.h"
#include "io/marshalls.h"
#include "servers/physics_2d_server.h"
void TileMap::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_SCENE: {
pending_update=true;
_update_dirty_quadrants();
RID space = get_world_2d()->get_space();
_update_quadrant_transform();
_update_quadrant_space(space);
} break;
case NOTIFICATION_EXIT_SCENE: {
_update_quadrant_space(RID());
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
//move stuff
_update_quadrant_transform();
} break;
}
}
void TileMap::_update_quadrant_space(const RID& p_space) {
for (Map<PosKey,Quadrant>::Element *E=quadrant_map.front();E;E=E->next()) {
Quadrant &q=E->get();
Physics2DServer::get_singleton()->body_set_space(q.static_body,p_space);
}
}
void TileMap::_update_quadrant_transform() {
if (!is_inside_scene())
return;
Matrix32 global_transform = get_global_transform();
for (Map<PosKey,Quadrant>::Element *E=quadrant_map.front();E;E=E->next()) {
Quadrant &q=E->get();
Matrix32 xform;
xform.set_origin( q.pos );
xform = global_transform * xform;
Physics2DServer::get_singleton()->body_set_state(q.static_body,Physics2DServer::BODY_STATE_TRANSFORM,xform);
}
}
void TileMap::set_tileset(const Ref<TileSet>& p_tileset) {
if (tile_set.is_valid())
tile_set->disconnect("changed",this,"_recreate_quadrants");
_clear_quadrants();
tile_set=p_tileset;
if (tile_set.is_valid())
tile_set->connect("changed",this,"_recreate_quadrants");
else
clear();
_recreate_quadrants();
emit_signal("settings_changed");
}
Ref<TileSet> TileMap::get_tileset() const {
return tile_set;
}
void TileMap::set_cell_size(int p_size) {
ERR_FAIL_COND(p_size<1);
_clear_quadrants();
cell_size=p_size;
_recreate_quadrants();
emit_signal("settings_changed");
}
int TileMap::get_cell_size() const {
return cell_size;
}
void TileMap::set_quadrant_size(int p_size) {
ERR_FAIL_COND(p_size<1);
_clear_quadrants();
quadrant_size=p_size;
_recreate_quadrants();
emit_signal("settings_changed");
}
int TileMap::get_quadrant_size() const {
return quadrant_size;
}
void TileMap::set_center_x(bool p_enable) {
center_x=p_enable;
_recreate_quadrants();
emit_signal("settings_changed");
}
bool TileMap::get_center_x() const {
return center_x;
}
void TileMap::set_center_y(bool p_enable) {
center_y=p_enable;
_recreate_quadrants();
emit_signal("settings_changed");
}
bool TileMap::get_center_y() const {
return center_y;
}
void TileMap::_update_dirty_quadrants() {
if (!pending_update)
return;
if (!is_inside_scene())
return;
if (!tile_set.is_valid())
return;
VisualServer *vs = VisualServer::get_singleton();
Physics2DServer *ps = Physics2DServer::get_singleton();
while (dirty_quadrant_list.first()) {
Quadrant &q = *dirty_quadrant_list.first()->self();
vs->canvas_item_clear(q.canvas_item);
ps->body_clear_shapes(q.static_body);
for(int i=0;i<q.cells.size();i++) {
Map<PosKey,Cell>::Element *E=tile_map.find( q.cells[i] );
Cell &c=E->get();
//moment of truth
if (!tile_set->has_tile(c.id))
continue;
Ref<Texture> tex = tile_set->tile_get_texture(c.id);
Vector2 tile_ofs = tile_set->tile_get_texture_offset(c.id);
Vector2 offset = Point2( E->key().x, E->key().y )*cell_size - q.pos;
if (!tex.is_valid())
continue;
Rect2 r = tile_set->tile_get_region(c.id);
Size2 s = tex->get_size();
if (r==Rect2())
s = tex->get_size();
else {
s = r.size;
r.pos.x+=fp_adjust;
r.pos.y+=fp_adjust;
r.size.x-=fp_adjust*2.0;
r.size.y-=fp_adjust*2.0;
}
Rect2 rect;
rect.pos=offset.floor();
rect.size=s;
rect.size.x+=fp_adjust;
rect.size.y+=fp_adjust;
if (c.flip_h)
rect.size.x=-rect.size.x;
if (c.flip_v)
rect.size.y=-rect.size.y;
rect.pos+=tile_ofs;
if (r==Rect2()) {
tex->draw_rect(q.canvas_item,rect);
} else {
tex->draw_rect_region(q.canvas_item,rect,r);
}
Vector< Ref<Shape2D> > shapes = tile_set->tile_get_shapes(c.id);
for(int i=0;i<shapes.size();i++) {
Ref<Shape2D> shape = shapes[i];
if (shape.is_valid()) {
Vector2 shape_ofs = tile_set->tile_get_shape_offset(c.id);
Matrix32 xform;
xform.set_origin(offset.floor());
if (c.flip_h) {
xform.elements[0]=-xform.elements[0];
xform.elements[2].x+=s.x-shape_ofs.x;
} else {
xform.elements[2].x+=shape_ofs.x;
}
if (c.flip_v) {
xform.elements[1]=-xform.elements[1];
xform.elements[2].y+=s.y-shape_ofs.y;
} else {
xform.elements[2].y+=shape_ofs.y;
}
ps->body_add_shape(q.static_body,shape->get_rid(),xform);
}
}
}
dirty_quadrant_list.remove( dirty_quadrant_list.first() );
}
pending_update=false;
_recompute_rect_cache();
}
void TileMap::_recompute_rect_cache() {
#ifdef DEBUG_ENABLED
if (!rect_cache_dirty)
return;
Rect2 r_total;
for (Map<PosKey,Quadrant>::Element *E=quadrant_map.front();E;E=E->next()) {
Rect2 r( Point2(E->key().x, E->key().y)*cell_size*quadrant_size, Size2(1,1)*cell_size*quadrant_size );
if (E==quadrant_map.front())
r_total=r;
else
r_total=r_total.merge(r);
}
if (r_total==Rect2()) {
rect_cache=Rect2(-10,-10,20,20);
} else {
rect_cache=r_total;
}
item_rect_changed();
rect_cache_dirty=false;
#endif
}
Map<TileMap::PosKey,TileMap::Quadrant>::Element *TileMap::_create_quadrant(const PosKey& p_qk) {
Matrix32 xform;
xform.set_origin(Point2(p_qk.x,p_qk.y)*quadrant_size*cell_size);
Quadrant q;
q.canvas_item = VisualServer::get_singleton()->canvas_item_create();
VisualServer::get_singleton()->canvas_item_set_parent( q.canvas_item, get_canvas_item() );
VisualServer::get_singleton()->canvas_item_set_transform( q.canvas_item, xform );
q.static_body=Physics2DServer::get_singleton()->body_create(Physics2DServer::BODY_MODE_STATIC);
Physics2DServer::get_singleton()->body_set_layer_mask(q.static_body,collision_layer);
if (is_inside_scene()) {
xform = get_global_transform() * xform;
RID space = get_world_2d()->get_space();
Physics2DServer::get_singleton()->body_set_space(q.static_body,space);
}
Physics2DServer::get_singleton()->body_set_state(q.static_body,Physics2DServer::BODY_STATE_TRANSFORM,xform);
q.pos=Vector2(p_qk.x,p_qk.y)*quadrant_size*cell_size;
rect_cache_dirty=true;
return quadrant_map.insert(p_qk,q);
}
void TileMap::_erase_quadrant(Map<PosKey,Quadrant>::Element *Q) {
Quadrant &q=Q->get();
Physics2DServer::get_singleton()->free(q.static_body);
VisualServer::get_singleton()->free(q.canvas_item);
if (q.dirty_list.in_list())
dirty_quadrant_list.remove(&q.dirty_list);
quadrant_map.erase(Q);
rect_cache_dirty=true;
}
void TileMap::_make_quadrant_dirty(Map<PosKey,Quadrant>::Element *Q) {
Quadrant &q=Q->get();
if (!q.dirty_list.in_list())
dirty_quadrant_list.add(&q.dirty_list);
if (pending_update)
return;
pending_update=true;
if (!is_inside_scene())
return;
call_deferred("_update_dirty_quadrants");
}
void TileMap::set_cell(int p_x,int p_y,int p_tile,bool p_flip_x,bool p_flip_y) {
PosKey pk(p_x,p_y);
Map<PosKey,Cell>::Element *E=tile_map.find(pk);
if (!E && p_tile==INVALID_CELL)
return; //nothing to do
PosKey qk(p_x/quadrant_size,p_y/quadrant_size);
if (p_tile==INVALID_CELL) {
//erase existing
tile_map.erase(pk);
Map<PosKey,Quadrant>::Element *Q = quadrant_map.find(qk);
ERR_FAIL_COND(!Q);
Quadrant &q=Q->get();
q.cells.erase(pk);
if (q.cells.size()==0)
_erase_quadrant(Q);
else
_make_quadrant_dirty(Q);
return;
}
Map<PosKey,Quadrant>::Element *Q = quadrant_map.find(qk);
if (!E) {
E=tile_map.insert(pk,Cell());
if (!Q)
Q=_create_quadrant(qk);
Quadrant &q=Q->get();
q.cells.insert(pk);
} else {
ERR_FAIL_COND(!Q); // quadrant should exist...
if (E->get().id==p_tile && E->get().flip_h==p_flip_x && E->get().flip_v==p_flip_y)
return; //nothing changed
}
Cell &c = E->get();
c.id=p_tile;
c.flip_h=p_flip_x;
c.flip_v=p_flip_y;
_make_quadrant_dirty(Q);
}
int TileMap::get_cell(int p_x,int p_y) const {
PosKey pk(p_x,p_y);
const Map<PosKey,Cell>::Element *E=tile_map.find(pk);
if (!E)
return INVALID_CELL;
return E->get().id;
}
bool TileMap::is_cell_x_flipped(int p_x,int p_y) const {
PosKey pk(p_x,p_y);
const Map<PosKey,Cell>::Element *E=tile_map.find(pk);
if (!E)
return false;
return E->get().flip_h;
}
bool TileMap::is_cell_y_flipped(int p_x,int p_y) const {
PosKey pk(p_x,p_y);
const Map<PosKey,Cell>::Element *E=tile_map.find(pk);
if (!E)
return false;
return E->get().flip_v;
}
void TileMap::_recreate_quadrants() {
_clear_quadrants();
for (Map<PosKey,Cell>::Element *E=tile_map.front();E;E=E->next()) {
PosKey qk(E->key().x/quadrant_size,E->key().y/quadrant_size);
Map<PosKey,Quadrant>::Element *Q=quadrant_map.find(qk);
if (!Q) {
Q=_create_quadrant(qk);
dirty_quadrant_list.add(&Q->get().dirty_list);
}
Q->get().cells.insert(E->key());
}
}
void TileMap::_clear_quadrants() {
while (quadrant_map.size()) {
_erase_quadrant( quadrant_map.front() );
}
}
void TileMap::clear() {
_clear_quadrants();
tile_map.clear();
}
void TileMap::_set_tile_data(const DVector<int>& p_data) {
int c=p_data.size();
DVector<int>::Read r = p_data.read();
for(int i=0;i<c;i+=2) {
const uint8_t *ptr=(const uint8_t*)&r[i];
uint8_t local[8];
for(int j=0;j<8;j++)
local[j]=ptr[j];
#ifdef BIG_ENDIAN_ENABLED
SWAP(local[0],local[3]);
SWAP(local[1],local[2]);
SWAP(local[4],local[7]);
SWAP(local[5],local[6]);
#endif
int16_t x = decode_uint16(&local[0]);
int16_t y = decode_uint16(&local[2]);
uint32_t v = decode_uint32(&local[4]);
bool flip_h = v&(1<<29);
bool flip_v = v&(1<<30);
v&=(1<<29)-1;
// if (x<-20 || y <-20 || x>4000 || y>4000)
// continue;
set_cell(x,y,v,flip_h,flip_v);
}
}
DVector<int> TileMap::_get_tile_data() const {
DVector<int> data;
data.resize(tile_map.size()*2);
DVector<int>::Write w = data.write();
int idx=0;
for(const Map<PosKey,Cell>::Element *E=tile_map.front();E;E=E->next()) {
uint8_t *ptr = (uint8_t*)&w[idx];
encode_uint16(E->key().x,&ptr[0]);
encode_uint16(E->key().y,&ptr[2]);
uint32_t val = E->get().id;
if (E->get().flip_h)
val|=(1<<29);
if (E->get().flip_v)
val|=(1<<30);
encode_uint32(val,&ptr[4]);
idx+=2;
}
w = DVector<int>::Write();
return data;
}
Rect2 TileMap::get_item_rect() const {
const_cast<TileMap*>(this)->_update_dirty_quadrants();
return rect_cache;
}
void TileMap::set_collision_layer_mask(uint32_t p_layer) {
collision_layer=p_layer;
for (Map<PosKey,Quadrant>::Element *E=quadrant_map.front();E;E=E->next()) {
Quadrant &q=E->get();
Physics2DServer::get_singleton()->body_set_layer_mask(q.static_body,collision_layer);
}
}
uint32_t TileMap::get_collision_layer_mask() const {
return collision_layer;
}
void TileMap::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_tileset","tileset:TileSet"),&TileMap::set_tileset);
ObjectTypeDB::bind_method(_MD("get_tileset:TileSet"),&TileMap::get_tileset);
ObjectTypeDB::bind_method(_MD("set_cell_size","size"),&TileMap::set_cell_size);
ObjectTypeDB::bind_method(_MD("get_cell_size"),&TileMap::get_cell_size);
ObjectTypeDB::bind_method(_MD("set_quadrant_size","size"),&TileMap::set_quadrant_size);
ObjectTypeDB::bind_method(_MD("get_quadrant_size"),&TileMap::get_quadrant_size);
ObjectTypeDB::bind_method(_MD("set_center_x","enable"),&TileMap::set_center_x);
ObjectTypeDB::bind_method(_MD("get_center_x"),&TileMap::get_center_x);
ObjectTypeDB::bind_method(_MD("set_center_y","enable"),&TileMap::set_center_y);
ObjectTypeDB::bind_method(_MD("get_center_y"),&TileMap::get_center_y);
ObjectTypeDB::bind_method(_MD("set_collision_layer_mask","mask"),&TileMap::set_collision_layer_mask);
ObjectTypeDB::bind_method(_MD("get_collision_layer_mask"),&TileMap::get_collision_layer_mask);
ObjectTypeDB::bind_method(_MD("set_cell","x","y","tile","flip_x","flip_y"),&TileMap::set_cell,DEFVAL(false),DEFVAL(false));
ObjectTypeDB::bind_method(_MD("get_cell","x","y"),&TileMap::get_cell);
ObjectTypeDB::bind_method(_MD("is_cell_x_flipped","x","y"),&TileMap::is_cell_x_flipped);
ObjectTypeDB::bind_method(_MD("is_cell_y_flipped","x","y"),&TileMap::is_cell_y_flipped);
ObjectTypeDB::bind_method(_MD("clear"),&TileMap::clear);
ObjectTypeDB::bind_method(_MD("_clear_quadrants"),&TileMap::_clear_quadrants);
ObjectTypeDB::bind_method(_MD("_recreate_quadrants"),&TileMap::_recreate_quadrants);
ObjectTypeDB::bind_method(_MD("_update_dirty_quadrants"),&TileMap::_update_dirty_quadrants);
ObjectTypeDB::bind_method(_MD("_set_tile_data"),&TileMap::_set_tile_data);
ObjectTypeDB::bind_method(_MD("_get_tile_data"),&TileMap::_get_tile_data);
ADD_PROPERTY( PropertyInfo(Variant::INT,"cell_size",PROPERTY_HINT_RANGE,"1,8192,1"),_SCS("set_cell_size"),_SCS("get_cell_size"));
ADD_PROPERTY( PropertyInfo(Variant::INT,"quadrant_size",PROPERTY_HINT_RANGE,"1,128,1"),_SCS("set_quadrant_size"),_SCS("get_quadrant_size"));
ADD_PROPERTY( PropertyInfo(Variant::OBJECT,"tile_set",PROPERTY_HINT_RESOURCE_TYPE,"TileSet"),_SCS("set_tileset"),_SCS("get_tileset"));
ADD_PROPERTY( PropertyInfo(Variant::OBJECT,"tile_data",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR),_SCS("_set_tile_data"),_SCS("_get_tile_data"));
ADD_PROPERTY( PropertyInfo(Variant::INT,"collision_layers",PROPERTY_HINT_ALL_FLAGS),_SCS("set_collision_layer_mask"),_SCS("get_collision_layer_mask"));
ADD_SIGNAL(MethodInfo("settings_changed"));
BIND_CONSTANT( INVALID_CELL );
}
TileMap::TileMap() {
rect_cache_dirty=true;
pending_update=false;
quadrant_size=16;
cell_size=64;
center_x=false;
center_y=false;
collision_layer=1;
fp_adjust=0.01;
fp_adjust=0.01;
}
TileMap::~TileMap() {
clear();
}
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