GameMaker Game Programming with GML -- Table of Contents -- GameMaker Game Programming with GML -- Credits -- About the Author -- About the Reviewers -- www.PacktPub.com -- Support files, eBooks, discount offers and more -- Why Subscribe? -- Free Access for Packt account holders -- Preface -- What this book covers -- What you need for this book -- Who this book is for -- Conventions -- Reader feedback -- Customer support -- Downloading the example code -- Downloading the color images of this book -- Errata -- Piracy -- Questions -- 1. Getting Started - An Introduction to GML -- Creating GML scripts -- Creating GML scripts within an event -- Creating scripts as resources -- Scripting a room's creation code -- Understanding parts of GML scripts -- Programs -- snake_case -- Variables -- Variable prefixes -- Variable scope -- Built-in variables -- Creating custom constants -- Functions and accessing script resources -- Arguments -- Expressions -- Expression symbols -- Conditional statements -- If, else, and switch -- repeat, while, do, and for -- break, continue, and return -- Arrays -- Two-dimensional arrays -- Commenting -- Errors -- Pushing your buttons -- Creating the project -- Gathering resources -- Sprites - spr_button -- Objects - obj_button -- Room - rm_main -- The events of obj_button -- The Create event -- The Left Button event -- The Left Pressed event -- The Mouse Enter event -- The Mouse Leave event -- The Global left release event -- The Draw GUI event -- Scripts - scr_create_button -- scr_random_position -- Creating buttons using scripts -- Scripting room creation code -- Creating scr_random_position -- Exporting and importing the button -- Summary -- 2. Random Organization - Creating a Puzzle Game -- Understanding sprite variables and functions -- Positioning and origin -- Layering with depth -- Rotating -- Scaling.

Working with frames and color -- Setting up the puzzle game -- Sprites - spr_grid -- spr_pieces -- Objects - obj_grid_manager -- obj_grid_block and obj_puzzle_piece -- Room - rm_gameplay -- Scripts -- Aligning the pieces of the puzzle game to a grid -- The Create event of obj_grid_manager -- scr_create_in_grid -- Understanding and utilizing randomization -- Random functions -- Randomizing the board -- Checking pieces -- scr_get_puzzle_piece -- scr_check_adjacent -- scr_check_board -- Running it all together -- Summary -- 3. So How Do I Play? - Adding Player Interaction -- Designing player interaction -- Reading input with the mouse -- Understanding mouse variables and functions -- Working with touch devices -- Creating resources to integrate mouse input into the puzzle game -- Adding new events to obj_grid_manager -- The Create event -- Updating spr_grid and obj_grid_block -- Adding new frames to spr_grid -- Implementing the Mouse events for obj_grid_block -- Entering the grid with the mouse -- Pressing the left mouse button -- Releasing the left mouse button globally -- The Mouse Leave event -- Swapping pieces -- obj_puzzle_piece -- scr_swap_pieces -- Updating scr_check_board -- Updating organization with scr_reorganize_board -- Integrating keyboard input -- Introducing keyboard functions, variables, and events -- Integrating the Keyboard event updates -- Utilizing the press event -- Implementing the release event -- Summary -- 4. Juicy Feedback - Aural and Visual Effects -- Introducing alarms -- Arming the puzzle game's alarms -- Setting up the first alarm -- Are pieces shifting? -- Applying is_shifting_pieces -- Determining where pieces should move -- Setting the Alarm 0 event of obj_puzzle_piece -- Making pieces fall with Alarm 1 in obj_puzzle_piece -- Setting the alarms -- Updating scr_swap_pieces -- Updating scr_check_board.

Updating scr_reorganize_board -- Hiding the pin drop - adding audio -- Creating sound resources -- Gathering audio resources -- Introducing audio functions -- Playing puzzling sounds -- Swapping sounds in scr_swap_pieces -- Playing the pop sound in scr_reorganize_board -- Fading in the music with obj_grid_manager -- Visualizing effects with particles -- Managing a particle system -- Emitting particles -- Shaping and distributing within emitters -- Creating different particle types -- Shaping particle types -- Particle-specific functions -- Integrating particles -- obj_particle_manager -- The Create event -- The Destroy event -- Placing obj_particle_manager -- Creating bursts within scr_reorganize_board -- Summary -- 5. Solving the Puzzle - Finishing Touches to the Puzzle Game -- Drawing and graphical user interface -- Understanding draw functions -- Drawing rectangles -- Setting color and alpha -- Drawing circles and ellipses -- Setting a circle's precision -- Drawing points, lines, and arrows -- Drawing text -- Setting font and text alignment -- Drawing sprites -- Tiling sprites -- Establishing the drawing order -- Gathering resources for creating the main menu -- Creating obj_main_menu -- Building a new room - rm_main_menu -- Creating fonts - fnt_title and fnt_main -- Creating the fonts -- Scripting obj_main_menu -- The Create event -- Utilizing div and mod -- Drawing the menu -- The Global Left Button event -- The press event -- The Global Left Release event -- The release event -- event_perform -- scr_on_menu_button_pressed -- Changing obj_grid_manager -- Integrating score and time -- Scoring and combos -- The Create event of obj_grid_manager -- Earning points in scr_reorganize_board -- Drawing UI in obj_grid_manager -- Timing and game over -- Adding new variables to the Create event of obj_grid_manager.

Using Alarm 1 and Alarm 2 in obj_grid_manager -- Alarm 1 -- Alarm 2 -- Drawing the timer -- Summary -- 6. Finite State Machines - Starting the 2D Platformer -- Introducing finite state machines -- Gathering resources for the platformer -- Establishing Lil' Vlad's sprites -- The standing sprite - spr_vlad_idle -- The walking sprite - spr_vlad_walk -- The jumping sprite - spr_vlad_jump -- Jumping with sound - snd_jump -- Creating a new object resource - obj_vlad -- Utilizing the User defined events -- Placing Vlad in a room - rm_level1 -- Defining Vlad's state constants -- Starting Vlad's events and scripts - walking -- The Create event -- The Step event -- Standing still - the User Defined 0 event -- Walk this way - the User Defined 1 event -- Adding new variables for jumping -- Using up to jump - the Step event update -- Falling state - the User Defined 2 event -- Looping the jump - the Animation End event -- Summary -- 7. It's in the Name - Platforms and Collisions -- Collision - a crash course -- Creating masks for collision -- Working with placement and movement functions -- Testing placement -- Movement functions -- Gathering resources to build platforms -- Sprites - spr_basic_platform and spr_solid_platform -- Objects - obj_basic_platform and obj_solid_platform -- Solidifying objects -- Populating the room -- Working with Collision events -- Updating the Create event of obj_vlad -- The Collision events of obj_vlad -- Creating the script resource scr_test_collision -- Updating the Step event -- Moving platforms with paths -- Creating path resources -- Utilizing the path_start function -- Gathering resources for the path creation -- The spr_moving_platform sprite -- obj_moving_platform -- pth_horizontal and pth_vertical_ellipse -- Integrating the moving platforms -- Creating instances of obj_moving_platform -- Interacting with obj_moving_platform.

Creating a new variable - current_platform -- Updating to the User Defined 2 event -- scr_test_collision and current_platform -- Using the Step End event -- Drawing a path -- Preventing Vlad from leaving -- Defining global.room_left and global.room_right -- Updating the End Step event -- Knowing the design ahead of time (when possible) -- Summary -- 8. Setting the Stage - Views, Backgrounds, and Tiles -- Expanding the room - views -- Setting the view -- Adjusting view parameters -- Preparing the game for obj_camera -- The Create event -- The End Step event -- Adding the camera with Creation Code -- Setting the environment - backgrounds -- Introducing background variables -- Creating background resources -- Preparing the game for background resources -- Building an atmosphere with bg_main -- Utilizing the background -- Setting a background index with bg_index -- Scripting scr_inverse_lerp -- Moving the background in the End Step event of obj_camera -- Introducing tiles -- Creating tiles -- Building resources for tiles -- Tiling with bg_tiles_main -- Applying tiles -- Utilizing tile_add and other tile functions -- Placing tiles with scripts - scr_define_tiles -- Using scr_define_tiles -- Drawing tiles in obj_moving_platform -- Summary -- 9. Breaking Vlad - Pickups, Hazards, and Enemies -- Tracking health with Draw and Draw GUI -- Displaying UI with the Draw and Draw GUI events -- Creating a new font - fnt_score_text -- Setting up the Draw GUI event -- Displaying health with the Draw event -- Updating the Create event -- Arming the Alarm 0 event in obj_vlad -- Working with pickups -- Gathering resources to create pickups -- Initializing sprite resources for pickups -- Pickup object resources -- Script resource - scr_collect_pickup -- Colliding with obj_vlad -- Dying from hazards -- Establishing a death state.

Setting up two new events - User Defined 3 and Alarm 1.