Building a Crafting Game, with GameMaker

This lecture guides building a player in game maker, creating a sprite and object, setting up a room, and implementing arrow-key (and wasd) movement with speed-based x and y axes.

Learn to implement pixel-perfect collisions in GameMaker by designing a collision mask for the player, creating a collision object, and scripting axis-specific checks to stop movement.

Master depth ordering in game maker by using the end step to set each instance's depth to minus its bounding box bottom, making lower y render in front.

Learn to make the player face the mouse by comparing x positions, flipping the sprite, and adjusting animation when moving backward, then prepare for breakable objects.

Create a breakable category and assign bushes, trees, and rocks as children of an all breakable parent to enable unified interaction and collisions.

Set up collectible resources (apple, orange, sword) with a global items array and an init function that runs before the first room, enabling drops when breaking bushes and trees.

Develop the item drop animation by applying gravity on the z axis, drawing items with a z-based position, and initializing z from object height so items fall to the ground.

Add resources stone and iron, update item data and sprites, duplicate trees to create breakable stone and iron ore, and fix health bar overflow by adjusting masks for the inventory.

learn to implement inventory limiting in game maker by creating a macro iron size of 12 and updating the add script to return true when added and false when full.

Create title buttons in GameMaker by duplicating the UI font, displaying the title text in a centered, overridden draw method, and using scripts to generate and manage them.

Implement vertical scrolling for the crafting menu in GameMaker by tracking scroll with a scroll variable, adjusting button positions, handling mouse wheel input, and enforcing limits.

Learn to define and display item recipes in a crafting game using a recipe array of ingredients and counts, and render the recipe UI with item sprites.

Learn manual item dropping by scripting removal from inventory on right-click. Spawn dropped items at calculated positions and update the inventory arrays.

Develop a hearts-based hp hud in GameMaker, displaying full and half hearts from the top-left, looping for each hp unit and updating hp with left/right arrows until zero.

Learn to implement item usage in a crafting game by wiring left-click to use items from the inventory, right-click to drop them, and handle effects with a switch.

Create a blessing block in a GameMaker crafting game by crafting from five wood, placing it, and enabling breakable behavior within a breakable parent hierarchy.

Learn to enforce placeable collisions by checking for collisions with the environment, the player, and enemies before placing items in empty spaces, using a collision function and red visual feedback.

Learn to implement juicy feedback by scaling objects in GameMaker with scripts, using x/y scale, scale target, and drawing logic to animate breakables and items.

Develop a chest system to store items and a new desk interface, enabling moving items between the inventory and desks, opened with the e key.