COZY COZY WORLD

I am an ordinary Japanese salaryman in his 50's.
The posts are mostly about my attempts at programming which I have taken up recently to maintain logical thinking.
And a bit about my travels around the country.

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Understanding 2D Physics Engines with Phaser 3, Part 5: Circle vs Line Collisions

cedarcantab

Feb 28, 20226 min read

Understanding 2D Physics Engines with Phaser 3, Part 5: Circle vs Line Collisions

Handling collisions between Circle and Line We covered the topic of colliding circles against axis aligned lines. In this post we cover...

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Understanding 2D Physics Engines with Phaser 3, Part 4: Circle Collision Response with Mass

cedarcantab

Feb 22, 20225 min read

Understanding 2D Physics Engines with Phaser 3, Part 4: Circle Collision Response with Mass

Collision Response in Circle2Circle with mass In the previous post I developed the crudest form of collision response; that of two...

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Physics Simulation in Javascript: Circle to Circle Collision Resolution

cedarcantab

Feb 9, 20224 min read

Physics Simulation in Javascript: Circle to Circle Collision Resolution

Resolution of collisions between two circles In the previous post we discussed how to assess whether two circles are colliding, or...

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Physics Simulation in Javascript: Circle to Circle Collision Detection

cedarcantab

Feb 7, 20223 min read

Physics Simulation in Javascript: Circle to Circle Collision Detection

Collision Detection and Collision Resolution between 2 Circles One of the core functions of a physics engine is of course to detect when...

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Phaser Coding Tips 7 Revisited: Creating a Shoot-em-up Tutorial

cedarcantab

Feb 4, 20227 min read

Phaser Coding Tips 7 Revisited: Creating a Shoot-em-up Tutorial

For those new to the art of creating shoot-em-up games using Javascript/Phaser framework like me, there is a fantastic tutorial here by...

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Understanding 2D Physics Engines with Phaser 3, Part 1.6: Affine Transformation Matrix

cedarcantab

Feb 1, 20224 min read

Understanding 2D Physics Engines with Phaser 3, Part 1.6: Affine Transformation Matrix

Phaser 3 TransformMatrix In the previous post we looked at how a point can be rotated about the origin through multiplying the position...

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Understanding 2D Physics Engines with Phaser 3, Part 1.5: Rotation Matrix

cedarcantab

Jan 31, 20224 min read

Understanding 2D Physics Engines with Phaser 3, Part 1.5: Rotation Matrix

There is one special type of matrix that will come up time and time again, particularly we start to deal with rotating bodies; that is...

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Understanding 2D Physics Engine with Phaser 3, Part 1.3: The Cross Product

cedarcantab

Jan 29, 20223 min read

Understanding 2D Physics Engine with Phaser 3, Part 1.3: The Cross Product

The Cross Product Some mathematicians will tell you that the vector cross product does not exist in 2D. If you search for a wiki page on...

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cedarcantab

Jan 27, 20223 min read

Physics Simulation: Vector object

2D Vectors in Javascript Before I start actually trying to code the laws of physics, it's useful to remind ourselves about vectors and...

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Physics Simulations in Javascript: Introduction

cedarcantab

Jan 26, 20224 min read

Physics Simulations in Javascript: Introduction

(Let's code a Physics Engine from scratch) When you code any game involve stuff moving about and colliding with each other using some...

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Space Invaders in Phaser 3 (Part 15): Beginning Game Sequence & Flashing Text

cedarcantab

Jan 21, 20224 min read

Space Invaders in Phaser 3 (Part 15): Beginning Game Sequence & Flashing Text

In this post I look at the beginning of game sequence. Prompt Player Screen In the original game, when the game starts, the screen is...

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Space Invaders in Phaser 3 (Part 14): Typewriting Text and the End of Game

cedarcantab

Jan 21, 20223 min read

Space Invaders in Phaser 3 (Part 14): Typewriting Text and the End of Game

Game Over Sequence When the player is hit, and last life is lost it is game over. As soon as the player is hit, the aliens stop moving,...

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Space Invaders in Phaser 3 (Part 9): Drawing the Shields

cedarcantab

Jan 15, 20229 min read

Space Invaders in Phaser 3 (Part 9): Drawing the Shields

I am sure you would be familiar with hte 4 shields in the game. The distinguishing feature is the way the shields get damaged gradually...

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Space Invaders in Phaser 3 (Part 7): Heads Up Display

cedarcantab

Jan 12, 20226 min read

Space Invaders in Phaser 3 (Part 7): Heads Up Display

Further to the previous blog, this is another simple and short one, where I document the way I created the "heads-up-display" (HUD)....

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Space Invaders in Phaser 3 (Part 5): Drawing and Moving the Invaders

cedarcantab

Jan 10, 202214 min read

Space Invaders in Phaser 3 (Part 5): Drawing and Moving the Invaders

Now we start getting into the guts of the game. Drawing and moving the aliens. For those who have played the actual game, the behaviour...

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Space Invaders in Phaser 3 (part 4): The Splash Screen (or at least a part of it)

cedarcantab

Jan 10, 202211 min read

Space Invaders in Phaser 3 (part 4): The Splash Screen (or at least a part of it)

The order is a bit backwards, but before I go onto documenting the guts of the game, here's a post about how I created the splash screen....

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Space Invaders in Phaser 3 (Part 3): Making the Player shoot

cedarcantab

Jan 10, 20229 min read

Space Invaders in Phaser 3 (Part 3): Making the Player shoot

In the previous post I documented how I created the Space Invader' player which can move left and right by pressing the cursor keys. In...

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Space Invaders in Phaser 3 (Part 1): Structuring the Game Code

cedarcantab

Jan 9, 20224 min read

Space Invaders in Phaser 3 (Part 1): Structuring the Game Code

Having played the game in the arcades in my teenage years a lot, I needed to understand the game logic. There are numerous tutorials on...

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Danmaku using Phaser 3 (lesson 40 part 6): Angle Offset as Arrays

cedarcantab

Dec 4, 20212 min read

Danmaku using Phaser 3 (lesson 40 part 6): Angle Offset as Arrays

We continue our series of accepting arrays as parameters - in this post, it is the angle offset paramter. Changing the angle of the...

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Danmaku using Phaser 3 (lesson 40 part 4): Curve, Gravity, Acceleration, Rotation as Arrays

cedarcantab

Nov 28, 20213 min read

Danmaku using Phaser 3 (lesson 40 part 4): Curve, Gravity, Acceleration, Rotation as Arrays

I continue to expand the scope of parameters which can be passed as arrays. With parameters that are passed "as-they-are" to the...

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COZY COZY WORLD

Understanding 2D Physics Engines with Phaser 3, Part 5: Circle vs Line Collisions

Understanding 2D Physics Engines with Phaser 3, Part 4: Circle Collision Response with Mass

Physics Simulation in Javascript: Circle to Circle Collision Resolution

Physics Simulation in Javascript: Circle to Circle Collision Detection

Phaser Coding Tips 7 Revisited: Creating a Shoot-em-up Tutorial

Understanding 2D Physics Engines with Phaser 3, Part 1.6: Affine Transformation Matrix

Understanding 2D Physics Engines with Phaser 3, Part 1.5: Rotation Matrix

Understanding 2D Physics Engine with Phaser 3, Part 1.3: The Cross Product

Physics Simulation: Vector object

Physics Simulations in Javascript: Introduction

Space Invaders in Phaser 3 (Part 15): Beginning Game Sequence & Flashing Text

Space Invaders in Phaser 3 (Part 14): Typewriting Text and the End of Game

Space Invaders in Phaser 3 (Part 9): Drawing the Shields

Space Invaders in Phaser 3 (Part 7): Heads Up Display

Space Invaders in Phaser 3 (Part 5): Drawing and Moving the Invaders

Space Invaders in Phaser 3 (part 4): The Splash Screen (or at least a part of it)

Space Invaders in Phaser 3 (Part 3): Making the Player shoot

Space Invaders in Phaser 3 (Part 1): Structuring the Game Code

Danmaku using Phaser 3 (lesson 40 part 6): Angle Offset as Arrays

Danmaku using Phaser 3 (lesson 40 part 4): Curve, Gravity, Acceleration, Rotation as Arrays

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