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Add missing Wikipedia references to technical topics #2

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Copilot Nov 13, 2025
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Add missing Wikipedia references to key topics
Copilot Nov 13, 2025
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11 changes: 10 additions & 1 deletion README.md
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Expand Up @@ -330,6 +330,7 @@ These are the topics we are going to cover in class each day. Links to [example
- `rotate` rotates items. See [API for rotate](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/rotate)
- We must clear changes we make so that they don't propagate to other draw calls
- We clear changes by calling `save` and `restore`. See [API for save](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/save) and [API for restore](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/restore)
- 🔗Additional information at https://en.wikipedia.org/wiki/Rotation_(mathematics)


## 🧭Ideas to explore on your own
Expand Down Expand Up @@ -358,6 +359,7 @@ These are the topics we are going to cover in class each day. Links to [example
- Previously we implemented the separate axis theorem
- Update the game engine so it checks for collisions as part of the game loop
- When there is an overlap, call `onCollisionEnter` for both game objects
- 🔗Additional information at https://en.wikipedia.org/wiki/Collision_detection

## 👩‍💻Activity: Add Collision Detection to our Space Shooter
- Add `onCollisionEnter` to our enemy ships
Expand All @@ -367,12 +369,14 @@ These are the topics we are going to cover in class each day. Links to [example
- Newton's three laws of motion can be added to our game engine with:
- A RigidBody component (laws 1 and 2: inertia and forces)
- Collision Resolution (law 3: equal and opposite reaction)
- 🔗Additional information at https://en.wikipedia.org/wiki/Newton%27s_laws_of_motion

## 💡New Idea: RigidBody
- The RigidBody component is a special component that tracks a game object's velocity and acceleration
- We use this component to also track gravity
- Every update, acceleration updates velocity
- Every update, velocity updates position
- 🔗Additional information at https://en.wikipedia.org/wiki/Rigid_body_dynamics

## 👩‍💻Activity: Code a falling game object with gravity
- Add a RigidBody component to a game object
Expand Down Expand Up @@ -415,7 +419,8 @@ These are the topics we are going to cover in class each day. Links to [example
- Two vectors are orthogonal if their dot product is 0.
- This is the same as having a 90 degree angle between them
- In 2D, the vector (x,y) is orthogonal to (-y, x) and (y, -x)
-
- 🔗Additional information at https://en.wikipedia.org/wiki/Orthogonality

## 💡New Idea: Collider Components
- We use collider components to identify which game objects need to have collision detection done
- In this course the collider component is empty
Expand All @@ -433,6 +438,7 @@ These are the topics we are going to cover in class each day. Links to [example
- We only need to check a finite number of lines:
- The lines who tangents are orthogonal to each pair of points in the polygons
- This algorithm does not work for concave polygons
- 🔗Additional information at https://en.wikipedia.org/wiki/Hyperplane_separation_theorem

## 👩‍💻Activity: Code the Separate Axis Theorem

Expand Down Expand Up @@ -473,6 +479,7 @@ These are the topics we are going to cover in class each day. Links to [example

## 💡New Idea: Defining Polygons with Points
- We don't want to have to create a new component each time we want a polygon of a different shape. If we add a `points` variable to our `Polygon` component, we can loop over those points when we draw. We can also update the points in the `Polygon` in the constructor of a game object, customizing it for each game object.
- 🔗Additional information at https://en.wikipedia.org/wiki/Polygon

## 👩‍💻Activity: Using `Polygon` for different shapes
- Take our space shooter game and change the shape of the objects while using the same `Polygon` component.
Expand Down Expand Up @@ -730,6 +737,7 @@ flowchart LR

## 💡New Idea: Updating our game (Interactive)
- MVC (Architecture)
- 🔗Additional information at https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller
- gameLoop formalization (Architecture)
- 🔗Additional information at https://m-abdullah-ramees0916.medium.com/the-game-loop-f6f5cb68c00,

Expand Down Expand Up @@ -828,6 +836,7 @@ flowchart LR
- Rectangles
- Arcs
- Introduction to radians
- 🔗Additional information at https://en.wikipedia.org/wiki/Radian
- Text
- See slides: Fonts
- 🔗Additional information at https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Drawing_text, https://www.w3schools.com/graphics/canvas_text.asp
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