update branches description

(cherry picked from commit 4e03aada20)

build.ts

@@ -29,7 +29,7 @@ const reservedSpacePath = 'src/reserved_space.asm';
 
 const instructionLength = 4; // in bytes
 const mapWidth = 15;
-const spriteWidth = 17;
+const spriteWidth = 5;
 
 const mapMatchingStrings = {
   0x00_00_00: '0', // Empty

readme.md

@@ -9,7 +9,14 @@ It thus should be able to run on the architecture and ISA the players have built
 The `main` branch contains a minimal implementation of the game.
 
 The following branches contains variations, allowing comparisons of performances, visuals, gameplay, ...
-- `res-2`: 256x192 screen resolution, 17x17 tile
+- `res-2`:
+  - `256x192` screen resolution
+  - `17x17` tile resolution
+- `res-2-prerendered`:
+  - `256x192` screen resolution
+  - `17x17` tile resolution
+  - initial screen prerendered
+  - no sprite rotation
 
 ## Build script
 

src/consts/map.asm

@@ -1,3 +1,4 @@
+; map size 16x12 (or 15x11 with margins)
 pub const map.width = 15
 pub const map.height = 11
 pub const map.size = 165 ; 11*15

src/consts/scene.asm

@@ -1,9 +1,8 @@
 ; given:
-; -> 256x192 pixels screen
-; -> 15x11   tiles map
-; => 17x17   pixels tile
+; - 16x12 tiles map
+; - 5x5   pixels tile
 
 pub const scene.margin_top = 2
 pub const scene.margin_bottom = 3
-pub const scene.margin_left = 0
-pub const scene.margin_right = 1
+pub const scene.margin_left = 2
+pub const scene.margin_right = 3

src/consts/screen.asm

@@ -20,7 +20,7 @@ pub const screen.mode_index = 0
 pub const screen.mode_value = 2
 pub const screen.offset_index = 1
 pub const screen.resolution_index = 2
-pub const screen.resolution_value = 2
+pub const screen.resolution_value = 0
 
-pub const screen.width = 256
-pub const screen.height = 192
+pub const screen.width = 80
+pub const screen.height = 60

src/consts/sprites.asm

@@ -1,6 +1,6 @@
-pub const sprites.width = 17
-pub const sprites.height = 17 ; unused as sprite are all square
-pub const sprites.size = 289 ; height x width
+pub const sprites.width = 5
+pub const sprites.height = 5 ; unused as sprite are all square
+pub const sprites.size = 25 ; height x width
 
 pub const sprites.rotation_0 = 0
 pub const sprites.rotation_90 = 1

visuals.md

@@ -23,4 +23,4 @@ Resolution ID | Tile size (in pixels) | Comment
 -- | -- | --
 `0` | `5x5` | with a reminder of 5 pixels en width and 5 pixels in height.
 `1` | `10x10` | with a reminder of 10w and 10h
-`2` | `17x17` | with a reminder of 1w and 5h 
+`2` | `17x17` | no reminder