Two leveleditor related bug fixes:

[supertux.git] / src / tilemap.cpp

diff --git a/src/tilemap.cpp b/src/tilemap.cpp
index 42abf7b..2bf445d 100644 (file)
--- a/src/tilemap.cpp
+++ b/src/tilemap.cpp
@@ -24,35 +24,35 @@
 #include <cmath>
 
 #include "tilemap.h"
-#include "screen/drawing_context.h"
+#include "video/drawing_context.h"
 #include "level.h"
 #include "tile.h"
 #include "tile_manager.h"
-#include "globals.h"
-#include "lispreader.h"
-#include "lispwriter.h"
+#include "app/globals.h"
+#include "utils/lispreader.h"
+#include "utils/lispwriter.h"
 
 TileMap::TileMap()
-  : solid(false), speed(1), width(0), height(0), layer(LAYER_TILES)
+  : solid(false), speed(1), width(0), height(0), layer(LAYER_TILES), vertical_flip(false)
 {
   tilemanager = TileManager::instance();
 }
 
 TileMap::TileMap(LispReader& reader)
-  : solid(false), speed(1), width(0), height(0), layer(LAYER_TILES)
+  : solid(false), speed(1), width(0), height(0), layer(LAYER_TILES), vertical_flip(false)
 {
   tilemanager = TileManager::instance();
 
-  std::string layer;
-  if(reader.read_string("layer", layer)) {
-    if(layer == "background")
+  std::string layer_str;
+  if(reader.read_string("layer", layer_str)) {
+    if(layer_str == "background")
       layer = LAYER_BACKGROUNDTILES;
-    else if(layer == "interactive")
+    else if(layer_str == "interactive")
       layer = LAYER_TILES;
-    else if(layer == "foreground")
+    else if(layer_str == "foreground")
       layer = LAYER_FOREGROUNDTILES;
     else
-      std::cerr << "Unknown layer '" << layer << "' in tilemap.\n";
+      std::cerr << "Unknown layer '" << layer_str << "' in tilemap.\n";
   }
 
   reader.read_bool("solid", solid);
@@ -83,6 +83,11 @@ TileMap::TileMap(LispReader& reader)
     throw std::runtime_error("wrong number of tiles in tilemap.");
 }
 
+TileMap::TileMap(int layer_, bool solid_, size_t width_, size_t height_)
+  : solid(solid_), speed(1), width(width_), height(height_), layer(layer_), vertical_flip(false)
+{
+}
+
 TileMap::~TileMap()
 {
 }
@@ -126,9 +131,15 @@ TileMap::action(float )
 
 void
 TileMap::draw(DrawingContext& context)
-{ 
+{
   if (speed == 1.0)
     {
+      if(vertical_flip)  // flip vertically the tiles, in case we are playing this
+        {   // level upside down
+        context.push_transform();
+        context.set_drawing_effect(VERTICAL_FLIP); 
+        }
+
       /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
        * I have no idea why */
       float start_x = roundf(context.get_translation().x);
@@ -144,10 +155,15 @@ TileMap::draw(DrawingContext& context)
       int tx, ty;
       for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
         for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
+          if(tx < 0 || tx > width || ty < 0 || ty > height)
+            continue;  // outside tilemap
           if (!tiles[ty*width + tx].hidden)
             tilemanager->draw_tile(context, tiles[ty*width + tx].id, pos, layer);
         }
       }
+
+      if(vertical_flip)  // disable flipping, if applied
+        context.pop_transform();
     }
   else
     {
@@ -156,6 +172,8 @@ TileMap::draw(DrawingContext& context)
 
       context.push_transform();
       context.set_translation(Vector(trans_x * speed, trans_y * speed));
+      if(vertical_flip)
+        context.set_drawing_effect(VERTICAL_FLIP); 
 
       float start_x = roundf(context.get_translation().x);
       float start_y = roundf(context.get_translation().y);
@@ -170,6 +188,8 @@ TileMap::draw(DrawingContext& context)
       int tx, ty;
       for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
         for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
+          if(tx < 0 || tx > width || ty < 0 || ty > height)
+            continue;  // outside tilemap
           if (!tiles[ty*width + tx].hidden)
             tilemanager->draw_tile(context, tiles[ty*width + tx].id, pos, layer);
         }
@@ -230,13 +250,26 @@ TileMap::resize(int new_width, int new_height)
   width = new_width;
 }
 
+void
+TileMap::do_vertical_flip()
+{
+  // remap tiles vertically flipped
+  for(int y = 0; y < height / 2; ++y) {
+    for(int x = 0; x < width; ++x) {
+      std::swap(tiles[y*width + x], tiles[(((height-1)*width) - (y*width)) + x]);
+      }
+    }
+
+  vertical_flip = true;
+}
+
 Tile*
 TileMap::get_tile(int x, int y) const
 {
   if(x < 0 || x >= width || y < 0 || y >= height)
-    return &tilemanager->get(0);
+    return tilemanager->get(0);
 
-  return &tilemanager->get(tiles[y*width + x].id);
+  return tilemanager->get(tiles[y*width + x].id);
 }
 
 Tile*