KEY TERMS:

Player - The person who plays the game and controls the game piece (example: In Tetris, the person who presses a button to drop the blocks into place.)

Goal - A task that a player must perform to win (or progress in) a game (example: The player must collect all the gems before progressing to the next level.)

Mechanic - The rules that govern how a player interacts with a game and how the game interacts with a player (example: In platform games, the player presses a button that makes the hero jump.)

Spawnable - An object in a game that a student can add to their game using the spawn command. (example: scenery, characters, and gems)

Property - A characteristic of an object. (example: The x-position of the gem that is being spawned.)

Summary:

These levels provide students with the tools they need to add spawnable objects to their game and goals to the levels they design. Students will learn about basic game mechanics and designing levels with clear goals.

Learning Objectives:

• Use correct syntax when writing code.

• Use proper sequencing when writing code.

• Use arguments to input information into a method.

• Use suitable methods for spawning objects and defining game goals.

• Define basic vocabulary: spawnable, mechanic, and goal.

Over the Garden WallSolution

// Use game.spawnXY() to build a fence around the farm!

game.spawnXY("fence", 39, 16);

// Spawn 2 more fences 4 meters apart...

// Spawn a "fence" at y 20

game.spawnXY("fence", 39, 20);

// Spawn a "fence" at y 24

game.spawnXY("fence", 39, 24);

game.spawnXY("fence", 39, 28);

game.spawnXY("fence", 39, 32);

// Spawn 2 more fences 4 meters apart...

// Spawn a "fence" at y 36

game.spawnXY("fence", 39, 36);

// Spawn a "fence" at y 40

game.spawnXY("fence", 39, 40);

game.spawnXY("fence", 39, 44);

Click Gait Solution

// Don't change any code. Just click PLAY button!

// Move to all the red X marks to win.

game.spawnPlayerXY("knight", 5, 8);

game.addMoveGoalXY(10, 18);

game.addMoveGoalXY(10, 38);

game.addMoveGoalXY(48, 41);

Every game needs a goal for the player.

One type of goal is a move goal - somewhere the player needs to get to.

Hero's Journey Solution

// Each game must have a player and a goal.

// Use game.spawnPlayerXY("captain", x, y)

// to add a player to your game:

game.spawnPlayerXY("captain", 9, 9);

// Use game.addMoveGoalXY(x, y)

// to add a movement goal to your game:

// it should be 10m away from the player.

game.addMoveGoalXY(53, 45);

// If you want to, use spawnXY("fence", x, y)

// to make a maze with fences...

// Then, click "Test Level" to try your first playable game!

A-maze-ing Solution

// Alejandro likes a challenge!

// Add more "forest" objects to the level to create a long maze.

// Set up the game's goal.

game.addCollectGoal();

// Spawn a hero and chest to collect.

game.spawnPlayerXY("duelist", 9, 59);

game.spawnXY("chest", 8, 14);

game.spawnXY("forest", 26, 51);

// Add 2 more "forest" objects. Make sure not to block the gems completely!

game.spawnXY("forest", 34, 22);

game.spawnXY("forest", 50, 22);

Gemtacular Solution

// Anya is searching for gems!

// Add gems to the level for the player to find.

// You must be able to beat your level to continue.

game.spawnPlayerXY("captain", 9, 18);

// Add a goal to collect the gems using game.addCollectGoal()

game.addCollectGoal();

game.spawnXY("gem", 28, 28);

// Spawn 3 gems across the level for the player to collect:

game.spawnXY("gem", 69, 10);

game.spawnXY("gem", 9, 36);

game.spawnXY("gem", 45, 44);

Summary

These levels provide students with practice modifying goals and spawning different types of objects needed in order to meet those goals.

Learning Objectives

• Use correct syntax when writing code.

• Use proper sequencing when writing code.

• Use arguments to input information into a method.

• Differentiate between different kinds of goals and spawnable objects.

Vorpal MouseSolution

// When playing, click an ogre to attack!

// No need to type any code for this level, just click Test Level!

// The following code spawns a playable hero:

game.spawnPlayerXY("guardian", 40, 40);

// These add goals to the level:

game.addDefeatGoal();

game.addSurviveGoal();

// This spawns some enemies to fight:

game.spawnXY("munchkin", 40, 25);

game.spawnXY("munchkin", 15, 15);

game.spawnXY("munchkin", 65, 15);

// This spawns a maze for the player:

game.spawnXY("forest", 30, 54);

game.spawnXY("forest", 50, 54);

game.spawnXY("forest", 30, 48);

game.spawnXY("forest", 50, 48);

game.spawnXY("forest", 30, 40);

game.spawnXY("forest", 50, 40);

game.spawnXY("forest", 30, 32);

game.spawnXY("forest", 50, 32);

game.spawnXY("forest", 30, 26);

game.spawnXY("forest", 50, 26);

game.spawnXY("forest", 30, 10);

game.spawnXY("forest", 50, 10);

game.spawnXY("forest", 22, 26);

game.spawnXY("forest", 58, 26);

game.spawnXY("forest", 14, 26);

game.spawnXY("forest", 66, 26);

Crushing It Solution

// If you forget any commands, look to the left of the code window!

// Spawn a hero using game.spawnPlayerXY(type, x, y).

game.spawnPlayerXY("champion", 20, 20);

game.addSurviveGoal();

// Add a goal to defeat ogres with game.addDefeatGoal()

game.addDefeatGoal();

game.spawnXY("munchkin", 40, 10);

// Spawn at least 3 more munchkins.

game.spawnXY("munchkin", 34, 49);

game.spawnXY("munchkin", 51, 40);

game.spawnXY("munchkin", 64, 21);

Give and Take Solution

// Move to all the X-marks.

// Those fire-traps hurt!

game.spawnPlayerXY("samurai", 40, 50);

game.addSurviveGoal();

game.addMoveGoalXY(25,40);

game.spawnXY("fire-trap", 25, 40);

game.addMoveGoalXY(55,40);

game.spawnXY("fire-trap", 55, 40);

game.addMoveGoalXY(40,20);

game.spawnXY("fire-trap", 40, 20);

// Spawn some "potion-small" objects to heal the player!

game.spawnXY("potion-small", 30, 39);

game.spawnXY("potion-small", 40, 25);

Army Training Solution

// Spawn a hero and add a goal.

game.spawnPlayerXY("champion", 40, 15);

game.addDefeatGoal();

// Spawn at least 2 "munchkin"s.

game.spawnXY("munchkin",32,32);

game.spawnXY("munchkin",29,43);

// Spawn at least 2 "thrower"s.

game.spawnXY("thrower",21,34);

game.spawnXY("thrower",23,46);

// Spawn at least 2 "soldier"s.

game.spawnXY("soldier",52,31);

game.spawnXY("soldier",51,41);

// Spawn at least 2 "archer"s.

game.spawnXY("archer",62,35);

game.spawnXY("archer",59,42);

Ranger Danger Solution

// Archers are powerful ranged units!

// While soldiers have health, archers provide damage.

// Too many soldiers, not enough archers!

game.spawnXY("soldier", 20, 40);

game.spawnXY("archer", 10, 30);

// Add 2 more archers:

game.spawnXY("archer", 20, 30);

game.spawnXY("archer", 20, 20);

Hedge Magic Solution

// Spawn a maze. Change the number for a different maze!

game.spawnMaze("forest", 1234567890);

// Spawn a hero with spawnPlayerXY(type, x, y)

game.spawnPlayerXY("duelist", 12, 13);

// Add at least one goal!

game.addMoveGoalXY(60, 59);

Summary:

These levels allow students to apply their knowledge of objects from Introduction to Computer Science in the context of game development. They also introduce students to the concept of properties.

Learning Objectives:

• Apply knowledge of object properties to game development.

• Change properties in order to modify game behavior for desired goal.

Forest Incursion Solution

// Okar needs to stomp out these annoying little munchkins!

// Unfortunately he is slow, and his attacks do little damage.

// Fortunately, as a game developer, you have full control over the world!

// Set Okar's properties to buff him up for ogre slaying!

// You can find default values for units on the doc panel.

game.addDefeatGoal();

game.addSurviveGoal();

var player = game.spawnPlayerXY("goliath", 12, 10);

// Increase the player's maxSpeed ( > 4), so he runs faster.

player.maxSpeed = 25;

// Increase the player's maxHealth ( > 500), so he lasts longer.

player.maxHealth = 2000;

// Increase the player's attackDamage ( > 7.68), so he can quickly take down

the ogres.

player.attackDamage = 99;

Throwing Fire Solution

// Game objects can be configured by setting properties

// Don't change this, it sets up the game.

var player = game.spawnPlayerXY("knight", 40, 10);

game.addCollectGoal();

game.addSurviveGoal();

game.spawnXY("gem", 32, 55);

game.spawnXY("gem", 51, 55);

var fs1 = game.spawnXY("fire-spewer", 12, 25);

var fs2 = game.spawnXY("fire-spewer", 70, 30);

var fs3 = game.spawnXY("fire-spewer", 12, 35);

var fs4 = game.spawnXY("fire-spewer", 70, 40);

// Change fs1.direction to "vertical":

fs1.direction = "vertical";

// Now set fs2.direction to "vertical":

fs2.direction = "vertical";

// Do the same for fs3 and fs4:

fs3.direction = "vertical";

fs4.direction = "vertical";

// Now play the game and collect the gems!

Them Bones Solution

// Generators spawn enemies over time.

// Skeletons are afraid of lightstones.

var player = game.spawnPlayerXY("champion", 15, 35);

player.attackDamage = 60;

player.maxSpeed = 8;

game.addSurviveGoal();

game.addDefeatGoal();

// Spawn a "generator"

game.spawnXY("generator", 45, 35);

// Spawn a "lightstone"

game.spawnXY("lightstone", 25, 45);

// Now beat your game!

Behavior Driven Development Solution

// Assign behaviors to units with the behavior property.

var skeleton1 = game.spawnXY("skeleton", 60, 48);

var skeleton2 = game.spawnXY("skeleton", 60, 30);

var skeleton3 = game.spawnXY("skeleton", 60, 12);

skeleton1.behavior = "Scampers";

skeleton2.behavior = "Scampers";

// Assign "Scampers" to skeleton3.behavior

skeleton3.behavior = "Scampers";

var ogre1 = game.spawnXY("ogre", 70, 50);

var ogre2 = game.spawnXY("ogre", 70, 30);

var ogre3 = game.spawnXY("ogre", 70, 10);

ogre1.behavior = "AttacksNearest";

// Assign "AttacksNearest" to ogre2.behavior

ogre2.behavior = "AttacksNearest";

// Assign "AttacksNearest" to ogre3.behavior

ogre3.behavior = "AttacksNearest";

var archer1 = game.spawnXY("archer", 14, 30);

// Assign "Defends" to archer1.behavior

archer1.behavior = "Defends";

// Don't need to change anything below here.

// But feel free to take a look!

var player = game.spawnPlayerXY("raider", 20, 30);

player.attackDamage = 10;

player.maxHealth = 9001;

game.addSurviveGoal();

game.addDefeatGoal();

game.spawnXY("forest", 40, 10);

game.spawnXY("forest", 40, 18);

game.spawnXY("forest", 40, 26);

game.spawnXY("forest", 40, 42);

game.spawnXY("forest", 40, 50);

game.spawnXY("forest", 40, 58);

game.spawnXY("lightstone", 30, 45);

game.spawnXY("lightstone", 30, 20);

game.spawnXY("lightstone", 30, 55);

game.spawnXY("lightstone", 30, 10);

game.spawnXY("potion-medium", 10, 50);

game.spawnXY("potion-medium", 10, 15);

Time To Live Solution

// Pass an argument to addSurviveGoal() to specify a time.

// This means the player must survive for 20 seconds.

game.addSurviveGoal(20);

// Spawn a generator with spawnXY

// Use the variable to configure the generator below.

var generator = game.spawnXY("generator", 60, 40);

// Set the generator's spawnType to "munchkin"

generator.spawnType = "munchkin";

// Use spawnPlayerXY to spawn a hero for the player.

var player = game.spawnPlayerXY("knight", 15, 15);

// Set the player's maxHealth to at least 100

player.maxHealth = 100;

// Set the player's attackDamage to at least 10

player.attackDamage = 10;

// Play the game!

Summary

This level is a blank slate. Encourage students to get creative with all the techniques they've learned throughout the course! The students should each design a game combining the game objects, goals, and mechanics they've learned in creative ways. The game should at least:

1. Spawn a player.

2. Add one or more goals for the player to complete.

3. Use some combination of obstacles, enemies, collectables, and other pieces to create a fun challenge for the player.

Learning Objectives

• Apply the tools and concepts introduced throughout the Game Development 1 Course to a creative game.

• Explain in words the design decisions that led them to their specific program and game.