diff --git a/mods/controllable_pixel_test.js b/mods/controllable_pixel_test.js
index 574ebc57..a89d9765 100644
--- a/mods/controllable_pixel_test.js
+++ b/mods/controllable_pixel_test.js
@@ -1,164 +1,161 @@
-sussyKey = null;
-isShift = false;
-isAlt = false;
+var modName = "mods/controllable_pixel_test.js";
+var libraryMod = "mods/code_library.js";
 
-document.addEventListener("keydown", function(modifierDownListener) {
-    // User presses shift
-    if (modifierDownListener.keyCode == 16) {
-        isShift = true;
-    }
-    // User presses alt
-    if (modifierDownListener.keyCode == 18) {
-        isAlt = true;
-    }
-});
+if(enabledMods.includes(explodeAtPlusMod) && enabledMods.includes(libraryMod)) {
+	sussyKey = null;
+	isShift = false;
+	isAlt = false;
 
-document.addEventListener("keyup", function(modifierUpListener) {
-    // User releases shift
-    if (modifierUpListener.keyCode == 16) {
-        isShift = false;
-    }
-    // User releases alt
-    if (modifierUpListener.keyCode == 18) {
-        isAlt = false;
-    }
-});
+	document.addEventListener("keydown", function(modifierDownListener) {
+		// User presses shift
+		if (modifierDownListener.keyCode == 16) {
+			isShift = true;
+		}
+		// User presses alt
+		if (modifierDownListener.keyCode == 18) {
+			isAlt = true;
+		}
+	});
 
-document.addEventListener("keyup", function(sussyListener) {
-    switch (sussyListener.keyCode) {
-        case 87:
-            sussyKey = "W";
-            break;
-        case 65:
-            sussyKey = "A";
-            break;
-        case 83:
-            sussyKey = "S";
-            break;
-        case 68:
-            sussyKey = "D";
-            break;
-        case 81:
-            sussyKey = "Q";
-            break;
-        case 88:
-            sussyKey = "X";
-            break;
-        case 90:
-            sussyKey = "Z";
-            break;
-        case 72:
-            sussyKey = "H";
-            break;
-    };
-});
+	document.addEventListener("keyup", function(modifierUpListener) {
+		// User releases shift
+		if (modifierUpListener.keyCode == 16) {
+			isShift = false;
+		}
+		// User releases alt
+		if (modifierUpListener.keyCode == 18) {
+			isAlt = false;
+		}
+	});
 
-function tryCreatePixel(_element,_x,_y) {
-    if(!elements[_element]) {
-        throw new Error("Element " + _element + " doesn't exist!");
-    };
-    if(isEmpty(_x,_y)) {
-        createPixel(_element,_x,_y);
-        return true;
-    } else {
-        return false;
-    }
-}
+	document.addEventListener("keyup", function(sussyListener) {
+		switch (sussyListener.keyCode) {
+			case 87:
+				sussyKey = "W";
+				break;
+			case 65:
+				sussyKey = "A";
+				break;
+			case 83:
+				sussyKey = "S";
+				break;
+			case 68:
+				sussyKey = "D";
+				break;
+			case 81:
+				sussyKey = "Q";
+				break;
+			case 88:
+				sussyKey = "X";
+				break;
+			case 90:
+				sussyKey = "Z";
+				break;
+			case 72:
+				sussyKey = "H";
+				break;
+		};
+	});
 
-function controllablePixelTryCreatePixelNullCheck(_element,_x,_y) {
-    if(!elements[_element]) { //catch the null
-        return false;
-    };
-    if(isEmpty(_x,_y)) {
-        tryCreatePixel(_element,_x,_y);
-        return true;
-    } else {
-        return false;
-    }
-}
+	function controllablePixelTryCreatePixelNullCheck(element,x,y) {
+		if(!elements[element]) { //catch the null
+			return false;
+		};
+		if(isEmpty(x,y)) {
+			tryCreatePixel(element,x,y);
+			return true;
+		} else {
+			return false;
+		}
+	}
 
-elements.controllable_pixel = {
-    color: "#FFFFFF",
-    colorOn: "#FFFF00",
-    behavior: behaviors.WALL,
-    state: "solid",
-    density: 2000,
-    maxSize: 1,
-    conduct: 1,
-    hardness: 1,
-    tick: function(pixel) {
-        var xx = pixel.x;
-        var yy = pixel.y;
-        userElement = currentElement;
-        if(userElement === pixel.element) {
-            userElement = null;
-        };
-        if(isShift && !isAlt) {
-            sussyKey === "Z" ? pixel.color = "rgb(255,191,127)" : pixel.color = "rgb(255,127,127)";
-        }
-        if(isAlt && !isShift) {
-            sussyKey === "Z" ? pixel.color = "rgb(191,255,127)" : pixel.color = "rgb(127,255,127)";
-        }
-        if(isAlt && isShift) {
-            sussyKey === "Z" ? pixel.color = "rgb(255,255,0)" : pixel.color = "rgb(255,255,127)";
-        }
-        if(!isAlt && !isShift) {
-            sussyKey === "Z" ? pixel.color = "rgb(255,255,191)" : pixel.color = "rgb(255,255,255)";
-        }
-        if(sussyKey !== null) {
-            switch (sussyKey) {
-                case "W":
-                    isAlt ? controllablePixelTryCreatePixelNullCheck(userElement,xx,yy-1) : tryMove(pixel,xx,yy-1);
-                    if(!isShift) {
-                        sussyKey = null;
-                    }
-                    break;
-                case "A":
-                    isAlt ? controllablePixelTryCreatePixelNullCheck(userElement,xx-1,yy) : tryMove(pixel,xx-1,yy);
-                    if(!isShift) {
-                        sussyKey = null;
-                    }
-                    break;
-                case "S":
-                    isAlt ? controllablePixelTryCreatePixelNullCheck(userElement,xx,yy+1) : tryMove(pixel,xx,yy+1);
-                    if(!isShift) {
-                        sussyKey = null;
-                    }
-                    break;
-                case "D":
-                    tryMove(pixel,xx+1,yy);
-                    if(!isShift) {
-                        sussyKey = null;
-                    }
-                    break;
-                case "H": //Alt+D is something else in some browsers.
-                    if(isAlt) {
-                        controllablePixelTryCreatePixelNullCheck(userElement,xx+1,yy);
-                    };
-                    if(!isShift) {
-                        sussyKey = null;
-                    }
-                    break;
-                case "X":
-                    explodeAt(xx,yy,5)
-                    if(!isShift) {
-                        sussyKey = null;
-                    }
-                    break;
-                case "Z":
-                    if (!pixel.charge && !pixel.chargeCD && !isEmpty(pixel.x,pixel.y,true)) {
-                        pixel.charge = 1;
-                    }
-                    if(!isShift === 0) {
-                        sussyKey = null;
-                    }
-                    break;
-                case "Q": //Use if a key gets stuck
-                    sussyKey = null;
-                    isShift = null;
-                    isAlt = null;
-                    break;
-            }
-        }
-    },
-}
+	elements.controllable_pixel = {
+		color: "#FFFFFF",
+		colorOn: "#FFFF00",
+		behavior: behaviors.WALL,
+		state: "solid",
+		density: 2000,
+		maxSize: 1,
+		conduct: 1,
+		hardness: 1,
+		tick: function(pixel) {
+			var xx = pixel.x;
+			var yy = pixel.y;
+			userElement = currentElement;
+			if(userElement === pixel.element) {
+				userElement = null;
+			};
+			if(isShift && !isAlt) {
+				sussyKey === "Z" ? pixel.color = "rgb(255,191,127)" : pixel.color = "rgb(255,127,127)";
+			}
+			if(isAlt && !isShift) {
+				sussyKey === "Z" ? pixel.color = "rgb(191,255,127)" : pixel.color = "rgb(127,255,127)";
+			}
+			if(isAlt && isShift) {
+				sussyKey === "Z" ? pixel.color = "rgb(255,255,0)" : pixel.color = "rgb(255,255,127)";
+			}
+			if(!isAlt && !isShift) {
+				sussyKey === "Z" ? pixel.color = "rgb(255,255,191)" : pixel.color = "rgb(255,255,255)";
+			}
+			if(sussyKey !== null) {
+				switch (sussyKey) {
+					case "W":
+						isAlt ? controllablePixelTryCreatePixelNullCheck(userElement,xx,yy-1) : tryMove(pixel,xx,yy-1);
+						if(!isShift) {
+							sussyKey = null;
+						}
+						break;
+					case "A":
+						isAlt ? controllablePixelTryCreatePixelNullCheck(userElement,xx-1,yy) : tryMove(pixel,xx-1,yy);
+						if(!isShift) {
+							sussyKey = null;
+						}
+						break;
+					case "S":
+						isAlt ? controllablePixelTryCreatePixelNullCheck(userElement,xx,yy+1) : tryMove(pixel,xx,yy+1);
+						if(!isShift) {
+							sussyKey = null;
+						}
+						break;
+					case "D":
+						tryMove(pixel,xx+1,yy);
+						if(!isShift) {
+							sussyKey = null;
+						}
+						break;
+					case "H": //Alt+D is something else in some browsers.
+						if(isAlt) {
+							controllablePixelTryCreatePixelNullCheck(userElement,xx+1,yy);
+						};
+						if(!isShift) {
+							sussyKey = null;
+						}
+						break;
+					case "X":
+						explodeAt(xx,yy,5)
+						if(!isShift) {
+							sussyKey = null;
+						}
+						break;
+					case "Z":
+						if (!pixel.charge && !pixel.chargeCD && !isEmpty(pixel.x,pixel.y,true)) {
+							pixel.charge = 1;
+						}
+						if(!isShift === 0) {
+							sussyKey = null;
+						}
+						break;
+					case "Q": //Use if a key gets stuck
+						sussyKey = null;
+						isShift = null;
+						isAlt = null;
+						break;
+				}
+			}
+		},
+	}
+} else {
+	alert(`The ${libraryMod} mod is required and has been automatically inserted (reload for this to take effect).`)
+	enabledMods.splice(enabledMods.indexOf(modName),0,libraryMod)
+	localStorage.setItem("enabledMods", JSON.stringify(enabledMods));
+};