Slide 1
Slide 1 text
@giginet
Slide 2
Slide 2 text
No content
Slide 3
Slide 3 text
ྩ࣌ͷ
ήʔϜϘʔΠ։ൃ
Slide 4
Slide 4 text
Game boy
• 1989ൃച
• Z80ϕʔεͷCPUʢශऑʣ
Z80(CPU) https://ja.wikipedia.org/wiki/Z80
Slide 5
Slide 5 text
update_game::
ld HL, READ_INPUT
ld A, [HL]
cp $00
jr nz, .continue_update_1
call read_joypad
.continue_update_1:
call pipes_update
call player_update
call player_set_position
call pipes_set_position
ld HL, FADE_IN_ACTIVE
ld A, [HL]
cp $00
jr z, .call_fade_in
cp $02
jr z, .call_fade_out
jr .call_parallax
.call_fade_in:
call fade_in
jr .call_parallax
.call_fade_out:
Slide 6
Slide 6 text
update_game::
ld HL, READ_INPUT
ld A, [HL]
cp $00
jr nz, .continue_update_1
call read_joypad
.continue_update_1:
call pipes_update
call player_update
call player_set_position
call pipes_set_position
ld HL, FADE_IN_ACTIVE
ld A, [HL]
cp $00
jr z, .call_fade_in
cp $02
jr z, .call_fade_out
jr .call_parallax
.call_fade_in:
call fade_in
jr .call_parallax
.call_fade_out:
Slide 7
Slide 7 text
GBDK
• GBDK(Game boy Development Kit)
• http://gbdk.sourceforge.net/
• ήʔϜϘʔΠͷήʔϜΛCݴޠͰྑ͍ײ͡ʹ࡞Ε
Δͭ
• macOSͰಈ͘Α͏ʹforkͨͭ͠
giginet/GBDK
Slide 8
Slide 8 text
#include
#include
unsigned char pixels[] = {255, 255, 195, 189, 189, 195, 189,
195, 189, 195, 189, 195, 195, 189, 255, 255};
int main() {
int x = 100, y = 100;
SPRITES_8x8;
set_sprite_data(0, 8, pixels);
set_sprite_tile(0, 0);
move_sprite(0, x, y);
SHOW_SPRITES;
while(1) {
if(joypad() & J_RIGHT) move_sprite(0, ++x, y);
if(joypad() & J_LEFT) move_sprite(0, --x, y);
if(joypad() & J_UP) move_sprite(0, x, --y);
if(joypad() & J_DOWN) move_sprite(0, x, ++y);
delay(10);
}
return 0;
}
ඳը
ϝΠϯϧʔϓ
ը૾σʔλ
Slide 9
Slide 9 text
GBDK
$ lcc -o rom game.gb
Slide 10
Slide 10 text
No content
Slide 11
Slide 11 text
No content
Slide 12
Slide 12 text
giginet/docker-gbdk
$ docker pull giginet/gbdk
$ docker run -it --rm -v `pwd`:/gbdk
giginet/gbdk /opt/gbdk/bin/lcc -o /
gbdk/rom.gb /gbdk/game.c
$ open rom.gb
Slide 13
Slide 13 text
No content
Slide 14
Slide 14 text
0x00
0x01
0x10
0x11
Slide 15
Slide 15 text
0x00
0x01
0x10
0x11
8px
8px
Slide 16
Slide 16 text
0x00
0x01
0x10
0x11
00 11 11 01 11 01 11 01
0b01111111 0x7f
0x6a
0b01101010
0 1 1 1 1 1 1 1
0 1 1 0 1 0 1 0
Slide 17
Slide 17 text
8px
8px
Slide 18
Slide 18 text
unsigned char giginyan[] = {255, 255,
254, 254, 252, 253, 252, 253, 254,
253, 254, 253, 254, 253, 255, 254...
Slide 19
Slide 19 text
use image::RgbaImage;
use std::vec;
use crate::sprite::{Sprite, Pixel};
use crate::chopper::Chopper;
fn load_sprite(image: &RgbaImage) -> Sprite {
let width = image.width();
let height = image.height();
let pixels = (0..width).map( |x| {
return (0..height).map( |y| {
let raw_pixel = image.get_pixel(x, y);
return Pixel::from_raw(raw_pixel.data);
})
.collect::>();
})
.collect::>>();
return Sprite { pixels: pixels };
}
fn squash(chunk: &Vec<&Pixel>) -> [u8; 2] {
fn clamp(i: u8) -> u8 {
if i > 0 {
return 1;
}
return 0;
giginet/gb-sprite-generator
Slide 20
Slide 20 text
giginet/gb-sprite-generator
$ cargo run ./assets >1 pixels.h
Slide 21
Slide 21 text
giginet/gb-sprite-generator
unsigned char player[] = {255,
255, 254, 254, 252, 253, 252,
253, 254, 253, 254, 253, 254,
253, 255, 254...
unsigned char bullet[] = {255,
255, 195, 189, 189, 195, 189,
195, 189, 195, 189, 195, 195,
189, 255, 255};
Slide 22
Slide 22 text
SPRITES_8x8;
// ϐΫηϧσʔλΛఆٛ
set_sprite_data(0, 8, giginyan);
set_sprite_tile(0, 0);
// ը૾Λඳը
move_sprite(0, 100, 100);
SHOW_SPRITES;
Slide 23
Slide 23 text
No content
Slide 24
Slide 24 text
No content
Slide 25
Slide 25 text
No content
Slide 26
Slide 26 text
No content
Slide 27
Slide 27 text
No content
Slide 28
Slide 28 text
No content
Slide 29
Slide 29 text
No content
Slide 30
Slide 30 text
mikeryan/ems-flasher
$ ems-flasher --write rom.gb
Slide 31
Slide 31 text
No content
Slide 32
Slide 32 text
❌ ❌
Slide 33
Slide 33 text
giginet/modern-gb
Slide 34
Slide 34 text
͝ਗ਼ௌ
͋Γ͕ͱ͏͍͟͝·ͨ͠