diff --git a/maps/world1.map b/maps/world1.map
index c5a0c4e..acab898 100644
Binary files a/maps/world1.map and b/maps/world1.map differ
diff --git a/src/sig/map/Map.java b/src/sig/map/Map.java
index 10388cd..492d63e 100644
--- a/src/sig/map/Map.java
+++ b/src/sig/map/Map.java
@@ -114,14 +114,18 @@ public class Map {
 
     public void ModifyTile(int x,int y,Tile t) {
         Tile prevTile = Tile.values()[tiles[y*Map.MAP_WIDTH+x]];
-        boolean prevIsCollisionTile=prevTile.getCollision()==CollisionType.SOLID;
-        boolean newIsCollisionTile=t.getCollision()==CollisionType.SOLID;
-        if (prevIsCollisionTile!=newIsCollisionTile) {
+        if (prevTile!=t) {
+            byte[] tilesheet = Sprite.TILE_SHEET.getBi_array();
+            boolean setSolid = t.getCollision()==CollisionType.SOLID;
             for (int yy=0;yy<Tile.TILE_HEIGHT;yy++) {
                 for (int xx=0;xx<Tile.TILE_WIDTH;xx++) {
-                    RabiClone.COLLISION[(y*Tile.TILE_HEIGHT+yy)*(Map.MAP_WIDTH*Tile.TILE_WIDTH)+(x*Tile.TILE_WIDTH+xx)]=newIsCollisionTile;
+                    if (tilesheet[(t.getSpriteSheetY()*Tile.TILE_HEIGHT+yy)*Sprite.TILE_SHEET.getCanvasWidth()+t.getSpriteSheetX()*Tile.TILE_WIDTH+xx]!=(byte)32) {
+                        RabiClone.COLLISION[(y*Tile.TILE_HEIGHT+yy)*(Map.MAP_WIDTH*Tile.TILE_WIDTH)+(x*Tile.TILE_WIDTH+xx)]=setSolid;
+                    } else {
+                        RabiClone.COLLISION[(y*Tile.TILE_HEIGHT+yy)*(Map.MAP_WIDTH*Tile.TILE_WIDTH)+(x*Tile.TILE_WIDTH+xx)]=false;
+                    }
                 }
-            }
+            } 
         }
         tiles[y*Map.MAP_WIDTH+x]=(char)(t.ordinal());
         //System.out.println("Tile "+(y*MAP_WIDTH+x)+" is now "+tiles[y*MAP_WIDTH+x]+".");
diff --git a/src/sig/objects/Player.java b/src/sig/objects/Player.java
index 572a65c..d929f6e 100644
--- a/src/sig/objects/Player.java
+++ b/src/sig/objects/Player.java
@@ -369,13 +369,25 @@ public class Player extends AnimatedObject implements CollisionEntity {
                     continue;
                 }
                 if (checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()))||
-                checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()))) {
-                    x_acceleration = 0;
-                    x_velocity = 0.000001;
-                    sideCollision=true;
-                    setX(x-0.1);
-                    break;
-                }       
+                checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY()))) {
+                    if (!(checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()-1))&&
+                    checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY()-1)))) {
+                        setY(getY()-1);
+                    } else {
+                        x_acceleration = 0;
+                        x_velocity = 0.000001;
+                        sideCollision=true;
+                        setX(x-0.1);
+                        break;
+                    }
+                } else {
+                    if (!checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+1))&&
+                    checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2))) {
+                        //System.out.println("Performs check."+System.currentTimeMillis());
+                        setY(getY()+1);
+                        //x_velocity = ;
+                    }
+                } 
             }
         } else 
         if (displacement_x<-0.00001) {
@@ -385,17 +397,29 @@ public class Player extends AnimatedObject implements CollisionEntity {
                 }
                 if (checkCollision((x+getCollisionBox().getX()-getSprite().getWidth()/2),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2())||
                 checkCollision((x+getCollisionBox().getX()-getSprite().getWidth()/2),getY()-getSprite().getHeight()/2+getCollisionBounds().getY())) {
-                    x_acceleration = 0;
-                    x_velocity = -0.000001;
-                    sideCollision=true;
-                    setX(x+0.1);
-                    break;
-                }       
+                    if (!(checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()-1))&&
+                    checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY()-1)))) {
+                        setY(getY()-1);
+                    } else {
+                        x_acceleration = 0;
+                        x_velocity = -0.000001;
+                        sideCollision=true;
+                        setX(x+0.1);
+                        break;
+                    }
+                } else {
+                    if (!checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+1))&&
+                    checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2))) {
+                        //System.out.println("Performs check."+System.currentTimeMillis());
+                        setY(getY()+1);
+                        //x_velocity = ;
+                    }
+                } 
             }
         }
         if (y_velocity==0) {
-            if (!(checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX2(),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+1)||
-            checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX(),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+1))) {
+            if (!(checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX2(),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2)||
+            checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX(),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2))) {
                 groundCollision=false;
             } else {
                 groundCollision=true;