diff --git a/Input/inputHandler.c b/Input/inputHandler.c
index 579ceb3..a2317ca 100644
--- a/Input/inputHandler.c
+++ b/Input/inputHandler.c
@@ -58,7 +58,13 @@ void mouseInput(InputHandler *inputHandler, List *sprites, Texture2D *texture, C
     inputHandler->cursorPos.x = GetMousePosition().x;
     inputHandler->cursorPos.y = GetMousePosition().y;
 
+    // resetting last selected Tile to grass texture
+    IsometricMapChangeTextureIdOfTile(map, (int) inputHandler->selectedTile.x, (int) inputHandler->selectedTile.y, 0);
+    // updating selected tile
     IsometricMapProject(map, camera, inputHandler->cursorPos.x, inputHandler->cursorPos.y, &inputHandler->selectedTile);
+    // setting currently selected tile to tower 
+    IsometricMapChangeTextureIdOfTile(map, (int) inputHandler->selectedTile.x, (int) inputHandler->selectedTile.y, 1);
+
 
     if(IsMouseButtonPressed(MOUSE_BUTTON_LEFT)){
         if(inputHandler->pressed == 0){
@@ -80,7 +86,6 @@ void mouseInput(InputHandler *inputHandler, List *sprites, Texture2D *texture, C
 
         // Add Sprite
         if(width + height <= 1){
-            //SpriteAdd(sprites, spriteAmount, texture, inputHandler->cursorPos.x + (*camera).target.x - (texture->width)/2, inputHandler->cursorPos.y + (*camera).target.y - (texture->height)/2);
             ListInsertBack(sprites, SpriteCreate(texture, inputHandler->cursorPos.x + (*camera).target.x - (texture->width)/2, inputHandler->cursorPos.y + (*camera).target.y - (texture->height)/2));
         }
 
@@ -126,7 +131,6 @@ void mouseInput(InputHandler *inputHandler, List *sprites, Texture2D *texture, C
     }
 }
 
-
 void keyboardInput(InputHandler *inputHandler, Camera2D *camera){
     if(IsKeyDown(KEY_W)){
         (*camera).target.y -= 1000.0f * GetFrameTime();
diff --git a/Input/inputHandler.h b/Input/inputHandler.h
index 8c989bd..9a08585 100644
--- a/Input/inputHandler.h
+++ b/Input/inputHandler.h
@@ -10,6 +10,7 @@ typedef struct InputHandler{
     Vector2 rectStart;
     Vector2 cursorPos;
     Vector2 selectedTile;
+    int selectedLayer;
 } InputHandler;
 
 void mouseInput(InputHandler *inputHandler, List *sprites, Texture2D *texture, Camera2D *camera, IsometricMap *map);
@@ -18,4 +19,7 @@ void keyboardInput(InputHandler *inputHandler, Camera2D *camera);
 
 void DrawRect(Vector2 rectStart, Vector2 *mousePosition);
 
+void ChangeIdOfSelectedTile(InputHandler *inputHandler, IsometricMap *map, int id);
+
+
 #endif
\ No newline at end of file
diff --git a/IsometricMap/isometricMap.c b/IsometricMap/isometricMap.c
index 1b2069f..a9d4469 100644
--- a/IsometricMap/isometricMap.c
+++ b/IsometricMap/isometricMap.c
@@ -103,6 +103,13 @@ void IsometricMapAddTile(IsometricMap *isometricMap, int x, int y, int textureId
 
 }
 
+void IsometricMapChangeTextureIdOfTile(IsometricMap *map, int x, int y, int id){
+    if( x < map->sizeX && y < map->sizeY &&
+        x > map->originX && y > map->originY ){
+        (map->tiles[x][y])->textureId = id;
+   }
+}
+
 
 
 
diff --git a/IsometricMap/isometricMap.h b/IsometricMap/isometricMap.h
index 7d31680..638ec85 100644
--- a/IsometricMap/isometricMap.h
+++ b/IsometricMap/isometricMap.h
@@ -27,5 +27,7 @@ Tile * IsometricMapGetTileFromArrayPosition(IsometricMap *isometricMap, int x, i
 void IsometricMapProject(IsometricMap *isometricMap, Camera2D *camera, int x, int y, Vector2 *tmp);
 
 void IsometricMapAddTile(IsometricMap *isometricMap, int x, int y, int textureId);
+void IsometricMapChangeTextureIdOfTile(IsometricMap *map, int x, int y, int id);
+
 
 #endif
\ No newline at end of file
diff --git a/IsometricMap/isometricRenderer.c b/IsometricMap/isometricRenderer.c
index c961894..abf9343 100644
--- a/IsometricMap/isometricRenderer.c
+++ b/IsometricMap/isometricRenderer.c
@@ -46,14 +46,8 @@ void IsometricRendererRenderIsometricMap(IsometricMap *map, InputHandler *input)
             float x = map->originX + offset->x;
             float y = map->originY + offset->y;
 
-            // TODO -> results in Segmentation fault
             int textureId = map->tiles[i][j]->textureId;
             
-            //int textureId = 0;
-            //if(i == input->selectedTile.x && j == input->selectedTile.y){
-            //    textureId = 1;
-            //}
-            
             DrawTexture(map->tileTextures[textureId], x, y, WHITE);
         }
     }
diff --git a/README.md b/README.md
index 25277de..72a77fa 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,5 @@ Fantasy Welt oder Realistisch?
 
 + Sprites in LinkedList speichern
 + LinkedList erweitern
++ IsometricMap Array erstellen für die verschiedenen Layer
++ Auswählen von Tiles auf höheren Layern
\ No newline at end of file
diff --git a/main.c b/main.c
index d7f102b..052b2a5 100644
--- a/main.c
+++ b/main.c
@@ -22,6 +22,14 @@ int main(){
     Sprite cursorSprite = {&texture, 450, 225};
 
     InputHandler inputHandler;
+    inputHandler.pressed = 0;
+    inputHandler.rectStart.x = 0;
+    inputHandler.rectStart.y = 0;
+    inputHandler.cursorPos.x = 0;
+    inputHandler.cursorPos.y = 0;
+    inputHandler.selectedTile.x = 0;
+    inputHandler.selectedTile.y = 0;
+    inputHandler.selectedLayer = 0;
 
     Camera2D camera = { 0 };
     camera.target = (Vector2){0, 0};