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examples/tetris: non-shouting consts

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This commit is contained in:
Alexander Medvednikov 2019-05-06 22:50:35 +02:00
parent c291336d61
commit 1e5da93ba8
1 changed files with 37 additions and 39 deletions
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76
examples/tetris/tetris.v
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@ -7,18 +7,18 @@ import glfw
import math
const (
BLOCK_SIZE = 20 // pixels
FIELD_HEIGHT = 20 // # of blocks
FIELD_WIDTH = 10
TETRO_SIZE = 4
WIN_WIDTH = BLOCK_SIZE * FIELD_WIDTH
WIN_HEIGHT = BLOCK_SIZE * FIELD_HEIGHT
TIMER_PERIOD = 250 // ms
BlockSize = 20 // pixels
FieldHeight = 20 // # of blocks
FieldWidth = 10
TetroSize = 4
WinWidth = BlockSize * FieldWidth
WinHeight = BlockSize * FieldHeight
TimerPeriod = 250 // ms
)
const (
// Tetros and their 4 possible states are encoded in binaries
B_TETROS = [
BTetros = [
// 0000 0
// 0000 0
// 0110 6
@ -54,7 +54,7 @@ const (
[1111, 9, 1111, 9],
]
// Each tetro has its unique color
COLORS = [
Colors = [
gx.rgb(0, 0, 0),
gx.rgb(253, 32, 47),
gx.rgb(0, 110, 194),
@ -67,7 +67,7 @@ const (
]
)
// TODO: type Tetro [TETRO_SIZE]struct{ x, y int }
// TODO: type Tetro [TetroSize]struct{ x, y int }
struct Block {
x int
y int
@ -103,8 +103,8 @@ fn main() {
game.init_game()
glfw.init()
mut window := glfw.create_window(glfw.WinCfg {
width: WIN_WIDTH
height: WIN_HEIGHT
width: WinWidth
height: WinHeight
title: 'V Tetris'
ptr: game // glfw user pointer
})
@ -112,8 +112,8 @@ fn main() {
window.onkeydown(key_down)
gg.init()
game.gg = gg.new_context(gg.Cfg {
width: WIN_WIDTH
height: WIN_HEIGHT
width: WinWidth
height: WinHeight
use_ortho: true // This is needed for 2D drawing
})
go game.run() // Run the game loop in a new thread
@ -133,22 +133,22 @@ fn (g mut Game) init_game() {
g.generate_tetro()
g.field = []array_int // TODO: g.field = [][]int
// Generate the field, fill it with 0's, add -1's on each edge
for i := 0; i < FIELD_HEIGHT + 2; i++ {
mut row := [0; FIELD_WIDTH + 2]
for i := 0; i < FieldHeight + 2; i++ {
mut row := [0; FieldWidth + 2]
row[0] = - 1
row[FIELD_WIDTH + 1] = - 1
row[FieldWidth + 1] = - 1
g.field << row
}
mut first_row := g.field[0]
mut last_row := g.field[FIELD_HEIGHT + 1]
for j := 0; j < FIELD_WIDTH + 2; j++ {
mut last_row := g.field[FieldHeight + 1]
for j := 0; j < FieldWidth + 2; j++ {
first_row[j] = - 1
last_row[j] = - 1
}
}
fn (g mut Game) parse_tetros() {
for i, b_tetros in B_TETROS {
for b_tetros in BTetros {
for b_tetro in b_tetros {
for t in parse_binary_tetro(b_tetro) {
g.tetros_cache << t
@ -162,14 +162,12 @@ fn (g mut Game) run() {
g.move_tetro()
g.delete_completed_lines()
glfw.post_empty_event() // force window redraw
time.sleep_ms(TIMER_PERIOD)
time.sleep_ms(TimerPeriod)
}
}
fn (g mut Game) move_tetro() {
// Check each block in current tetro
//for i := 0; i < TETRO_SIZE; i++ {
//tetro := g.tetro[i]
for block in g.tetro {
y := block.y + g.pos_y + 1
x := block.x + g.pos_x
@ -193,7 +191,7 @@ fn (g mut Game) move_tetro() {
fn (g mut Game) move_right(dx int) {
// Reached left/right edge or another tetro?
for i := 0; i < TETRO_SIZE; i++ {
for i := 0; i < TetroSize; i++ {
tetro := g.tetro[i]
y := tetro.y + g.pos_y
x := tetro.x + g.pos_x + dx
@ -207,13 +205,13 @@ fn (g mut Game) move_right(dx int) {
}
fn (g mut Game) delete_completed_lines() {
for y := FIELD_HEIGHT; y >= 1; y-- {
for y := FieldHeight; y >= 1; y-- {
g.delete_completed_line(y)
}
}
fn (g mut Game) delete_completed_line(y int) {
for x := 1; x <= FIELD_WIDTH; x++ {
for x := 1; x <= FieldWidth; x++ {
f := g.field[y]
if f[x] == 0 {
return
@ -221,7 +219,7 @@ fn (g mut Game) delete_completed_line(y int) {
}
// Move everything down by 1 position
for yy := y - 1; yy >= 1; yy-- {
for x := 1; x <= FIELD_WIDTH; x++ {
for x := 1; x <= FieldWidth; x++ {
mut a := g.field[yy + 1]
mut b := g.field[yy]
a[x] = b[x]
@ -232,20 +230,20 @@ fn (g mut Game) delete_completed_line(y int) {
// Place a new tetro on top
fn (g mut Game) generate_tetro() {
g.pos_y = 0
g.pos_x = FIELD_WIDTH / 2 - TETRO_SIZE / 2
g.tetro_idx = rand.next(B_TETROS.len)
g.pos_x = FieldWidth / 2 - TetroSize / 2
g.tetro_idx = rand.next(BTetros.len)
g.rotation_idx = 0
g.get_tetro()
}
// Get the right tetro from cache
fn (g mut Game) get_tetro() {
idx := g.tetro_idx * TETRO_SIZE * TETRO_SIZE + g.rotation_idx * TETRO_SIZE
g.tetro = g.tetros_cache.slice(idx, idx + TETRO_SIZE)
idx := g.tetro_idx * TetroSize * TetroSize + g.rotation_idx * TetroSize
g.tetro = g.tetros_cache.slice(idx, idx + TetroSize)
}
fn (g mut Game) drop_tetro() {
for i := 0; i < TETRO_SIZE; i++ {
for i := 0; i < TetroSize; i++ {
tetro := g.tetro[i]
x := tetro.x + g.pos_x
y := tetro.y + g.pos_y
@ -257,20 +255,20 @@ fn (g mut Game) drop_tetro() {
}
fn (g &Game) draw_tetro() {
for i := 0; i < TETRO_SIZE; i++ {
for i := 0; i < TetroSize; i++ {
tetro := g.tetro[i]
g.draw_block(g.pos_y + tetro.y, g.pos_x + tetro.x, g.tetro_idx + 1)
}
}
fn (g &Game) draw_block(i, j int, color_idx int) {
g.gg.draw_rect((j - 1) * BLOCK_SIZE, (i - 1) * BLOCK_SIZE,
BLOCK_SIZE - 1, BLOCK_SIZE - 1, COLORS[color_idx])
g.gg.draw_rect((j - 1) * BlockSize, (i - 1) * BlockSize,
BlockSize - 1, BlockSize - 1, Colors[color_idx])
}
fn (g &Game) draw_field() {
for i := 1; i < FIELD_HEIGHT + 1; i++ {
for j := 1; j < FIELD_WIDTH + 1; j++ {
for i := 1; i < FieldHeight + 1; i++ {
for j := 1; j < FieldWidth + 1; j++ {
f := g.field[i]
if f[j] > 0 {
g.draw_block(i, j, f[j])
@ -297,7 +295,7 @@ fn parse_binary_tetro(t int) []Block {
for j := 3; j >= 0; j-- {
bin := digit % 2
digit /= 2
if bin == 1 || (horizontal && i == TETRO_SIZE - 1) {
if bin == 1 || (horizontal && i == TetroSize - 1) {
// TODO: res[cnt].x = j
// res[cnt].y = i
mut point := &res[cnt]
@ -321,7 +319,7 @@ fn key_down(wnd voidptr, key int, code int, action, mods int) {
case GLFW_KEY_UP:
// Rotate the tetro
game.rotation_idx++
if game.rotation_idx == TETRO_SIZE {
if game.rotation_idx == TetroSize {
game.rotation_idx = 0
}
game.get_tetro()