689 lines
15 KiB
V
689 lines
15 KiB
V
import gg
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import gx
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import os
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import rand
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import sokol.sapp
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import time
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struct App {
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mut:
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gg &gg.Context = 0
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touch TouchInfo
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ui Ui
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theme &Theme = themes[0]
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theme_idx int
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board Board
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undo []Board
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atickers [4][4]int
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state GameState = .play
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tile_format TileFormat = .normal
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moves int
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perf &Perf = 0
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}
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struct Ui {
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mut:
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tile_size int
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border_size int
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padding_size int
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header_size int
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font_size int
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window_width int
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window_height int
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x_padding int
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y_padding int
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}
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struct Theme {
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bg_color gx.Color
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padding_color gx.Color
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text_color gx.Color
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game_over_color gx.Color
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victory_color gx.Color
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tile_colors []gx.Color
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}
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const (
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themes = [
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&Theme {
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bg_color: gx.rgb(250, 248, 239)
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padding_color: gx.rgb(143, 130, 119)
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victory_color: gx.rgb(100, 160, 100)
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game_over_color: gx.rgb(190, 50, 50)
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text_color: gx.black
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tile_colors: [
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gx.rgb(205, 193, 180) // Empty / 0 tile
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gx.rgb(238, 228, 218) // 2
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gx.rgb(237, 224, 200) // 4
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gx.rgb(242, 177, 121) // 8
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gx.rgb(245, 149, 99) // 16
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gx.rgb(246, 124, 95) // 32
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gx.rgb(246, 94, 59) // 64
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gx.rgb(237, 207, 114) // 128
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gx.rgb(237, 204, 97) // 256
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gx.rgb(237, 200, 80) // 512
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gx.rgb(237, 197, 63) // 1024
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gx.rgb(237, 194, 46) // 2048
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]
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},
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&Theme {
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bg_color: gx.rgb(55, 55, 55)
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padding_color: gx.rgb(68, 60, 59)
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victory_color: gx.rgb(100, 160, 100)
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game_over_color: gx.rgb(190, 50, 50)
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text_color: gx.white
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tile_colors: [
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gx.rgb(123, 115, 108)
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gx.rgb(142, 136, 130)
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gx.rgb(142, 134, 120)
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gx.rgb(145, 106, 72)
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gx.rgb(147, 89, 59)
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gx.rgb(147, 74, 57)
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gx.rgb(147, 56, 35)
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gx.rgb(142, 124, 68)
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gx.rgb(142, 122, 58)
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gx.rgb(142, 120, 48)
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gx.rgb(142, 118, 37)
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gx.rgb(142, 116, 27)
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]
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},
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&Theme {
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bg_color: gx.rgb(38, 38, 66)
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padding_color: gx.rgb(58, 50, 74)
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victory_color: gx.rgb(100, 160, 100)
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game_over_color: gx.rgb(190, 50, 50)
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text_color: gx.white
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tile_colors: [
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gx.rgb(92, 86, 140)
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gx.rgb(106, 99, 169)
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gx.rgb(106, 97, 156)
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gx.rgb(108, 79, 93)
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gx.rgb(110, 66, 76)
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gx.rgb(110, 55, 74)
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gx.rgb(110, 42, 45)
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gx.rgb(106, 93, 88)
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gx.rgb(106, 91, 75)
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gx.rgb(106, 90, 62)
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gx.rgb(106, 88, 48)
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gx.rgb(106, 87, 35)
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]
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},
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]
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window_title = 'V 2048'
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default_window_width = 544
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default_window_height = 560
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animation_length = 10 // frames
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)
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// Used for performance monitoring when `-d showfps` is passed, unused / optimized out otherwise
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struct Perf {
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mut:
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frame int
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frame_old int
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frame_sw time.StopWatch = time.new_stopwatch({})
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second_sw time.StopWatch = time.new_stopwatch({})
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}
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struct Pos {
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x int = -1
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y int = -1
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}
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struct Board {
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mut:
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field [4][4]int
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points int
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shifts int
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}
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struct TileLine {
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ypos int
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mut:
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field [5]int
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points int
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shifts int
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}
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struct TouchInfo {
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mut:
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start_pos Pos
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}
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enum TileFormat {
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normal
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log
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exponent
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shifts
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none_
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end_ // To know when to wrap around
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}
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enum GameState {
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play
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over
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victory
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}
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enum LabelKind {
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points
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moves
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tile
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victory
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game_over
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}
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enum Direction {
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up
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down
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left
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right
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}
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// Utility functions, to avoid importing `math`
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[inline]
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fn min(a, b int) int {
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if a < b { return a } else { return b }
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}
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[inline]
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fn max(a, b int) int {
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if a > b { return a } else { return b }
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}
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[inline]
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fn abs(a int) int {
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if a < 0 { return -a } else { return a }
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}
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fn (b Board) transpose() Board {
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mut res := b
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for y in 0..4 {
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for x in 0..4 {
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res.field[y][x] = b.field[x][y]
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}
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}
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return res
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}
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fn (b Board) hmirror() Board {
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mut res := b
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for y in 0..4 {
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for x in 0..4 {
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res.field[y][x] = b.field[y][3 - x]
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}
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}
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return res
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}
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// GCC optimization bug; inlining fails when compiled with -prod
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[no_inline]
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fn (t TileLine) to_left() TileLine {
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right_border_idx := 5
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mut res := t
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mut zeros := 0
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mut nonzeros := 0
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// gather meta info about the line:
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for x in res.field {
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if x == 0 { zeros++ } else { nonzeros++ }
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}
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if nonzeros == 0 {
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// when all the tiles are empty, there is nothing left to do
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return res
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}
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if zeros > 0 {
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// we have some 0s, do shifts to compact them:
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mut remaining_zeros := zeros
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for x := 0; x < right_border_idx - 1; x++ {
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for res.field[x] == 0 && remaining_zeros > 0 {
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res.shifts++
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for k := x; k < right_border_idx; k++ {
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res.field[k] = res.field[k + 1]
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}
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remaining_zeros--
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}
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}
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}
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// At this point, the non 0 tiles are all on the left, with no empty spaces
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// between them. we can safely merge them, when they have the same value:
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for x := 0; x < right_border_idx - 1; x++ {
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if res.field[x] == 0 {
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break
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}
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if res.field[x] == res.field[x + 1] {
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for k := x; k < right_border_idx; k++ {
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res.field[k] = res.field[k + 1]
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}
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res.shifts++
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res.field[x]++
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res.points += 1 << res.field[x]
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}
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}
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return res
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}
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fn (b Board) to_left() Board {
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mut res := b
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for y in 0..4 {
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mut hline := TileLine{ypos: y}
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for x in 0..4 {
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hline.field[x] = b.field[y][x]
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}
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reshline := hline.to_left()
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res.shifts += reshline.shifts
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res.points += reshline.points
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for x in 0..4 {
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res.field[y][x] = reshline.field[x]
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}
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}
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return res
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}
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fn (mut app App) update_tickers() {
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for y in 0..4 {
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for x in 0..4 {
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mut old := app.atickers[y][x]
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if old > 0 {
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old--
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app.atickers[y][x] = old
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}
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}
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}
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}
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fn (mut app App) new_game() {
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app.board = Board{}
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for y in 0..4 {
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for x in 0..4 {
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app.board.field[y][x] = 0
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app.atickers[y][x] = 0
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}
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}
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app.state = .play
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app.undo = []
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app.moves = 0
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app.new_random_tile()
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app.new_random_tile()
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}
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fn (mut app App) check_for_victory() {
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for y in 0..4 {
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for x in 0..4 {
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fidx := app.board.field[y][x]
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if fidx == 11 {
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app.victory()
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return
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}
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}
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}
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}
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fn (mut app App) check_for_game_over() {
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mut zeros := 0
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mut remaining_merges := 0
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for y in 0..4 {
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for x in 0..4 {
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fidx := app.board.field[y][x]
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if fidx == 0 {
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zeros++
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continue
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}
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if (x > 0 && fidx == app.board.field[y][x - 1])
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|| (x < 4 - 1 && fidx == app.board.field[y][x + 1])
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|| (y > 0 && fidx == app.board.field[y - 1][x])
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|| (y < 4 - 1 && fidx == app.board.field[y + 1][x]) {
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remaining_merges++
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}
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}
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}
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if remaining_merges == 0 && zeros == 0 {
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app.game_over()
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}
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}
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fn (mut app App) new_random_tile() {
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mut etiles := [16]Pos{}
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mut empty_tiles_max := 0
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for y in 0..4 {
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for x in 0..4 {
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fidx := app.board.field[y][x]
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if fidx == 0 {
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etiles[empty_tiles_max] = Pos{x, y}
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app.atickers[y][x] = 0
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empty_tiles_max++
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}
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}
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}
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if empty_tiles_max > 0 {
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new_random_tile_index := rand.intn(empty_tiles_max)
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empty_pos := etiles[new_random_tile_index]
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// 1/8 chance of creating a `4` tile
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random_value := if rand.intn(8) == 0 { 2 } else { 1 }
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app.board.field[empty_pos.y][empty_pos.x] = random_value
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app.atickers[empty_pos.y][empty_pos.x] = animation_length
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}
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app.check_for_victory()
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app.check_for_game_over()
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}
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fn (mut app App) victory() {
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app.state = .victory
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}
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fn (mut app App) game_over() {
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app.state = .over
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}
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fn (mut app App) move(d Direction) {
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old := app.board
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new := match d {
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.left { old.to_left() }
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.right { old.hmirror().to_left().hmirror() }
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.up { old.transpose().to_left().transpose() }
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.down { old.transpose().hmirror().to_left().hmirror().transpose() }
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}
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if old.shifts != new.shifts {
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app.moves++
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app.board = new
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app.undo << old
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app.new_random_tile()
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}
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}
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fn (app &App) label_format(kind LabelKind) gx.TextCfg {
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match kind {
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.points {
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return {
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color: app.theme.text_color
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align: .left
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size: app.ui.font_size / 2
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}
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} .moves {
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return {
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color: app.theme.text_color
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align: .right
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size: app.ui.font_size / 2
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}
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} .tile {
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return {
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color: app.theme.text_color
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align: .center
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vertical_align: .middle
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size: app.ui.font_size
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}
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} .victory {
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return {
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color: app.theme.victory_color
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align: .center
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vertical_align: .middle
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size: app.ui.font_size * 2
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}
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} .game_over {
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return {
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color: app.theme.game_over_color
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align: .center
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vertical_align: .middle
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size: app.ui.font_size * 2
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}
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}
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}
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}
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fn (mut app App) set_theme(idx int) {
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theme := themes[idx]
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app.theme_idx = idx
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app.theme = theme
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app.gg.set_bg_color(theme.bg_color)
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}
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fn (mut app App) resize() {
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mut s := sapp.dpi_scale() || 1
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w := int(sapp.width() / s)
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h := int(sapp.height() / s)
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m := f32(min(w, h))
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app.ui.window_width = w
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app.ui.window_height = h
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app.ui.padding_size = int(m / 38)
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app.ui.header_size = app.ui.padding_size
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app.ui.border_size = app.ui.padding_size * 2
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app.ui.tile_size = int((m - app.ui.padding_size * 5 - app.ui.border_size * 2) / 4)
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app.ui.font_size = int(m / 10)
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// If the window's height is greater than its width, center the board vertically.
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// If not, center it horizontally
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if w > h {
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app.ui.y_padding = 0
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app.ui.x_padding = (app.ui.window_width - app.ui.window_height) / 2
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} else {
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app.ui.y_padding = (app.ui.window_height - app.ui.window_width - app.ui.header_size) / 2
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app.ui.x_padding = 0
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}
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}
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fn (app &App) draw() {
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ww := app.ui.window_width
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wh := app.ui.window_height
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labelx := app.ui.x_padding + app.ui.border_size
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labely := app.ui.y_padding + app.ui.border_size / 2
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app.draw_tiles()
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app.gg.draw_text(labelx, labely, 'Points: $app.board.points', app.label_format(.points))
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app.gg.draw_text(ww - labelx, labely, 'Moves: $app.moves', app.label_format(.moves))
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// TODO: Make transparency work in `gg`
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if app.state == .over {
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app.gg.draw_rect(0, 0, ww, wh, gx.rgba(15, 0, 0, 44))
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app.gg.draw_text(ww / 2, wh / 2, 'Game Over', app.label_format(.game_over))
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}
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if app.state == .victory {
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app.gg.draw_rect(0, 0, ww, wh, gx.rgba(0, 15, 0, 44))
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app.gg.draw_text(ww / 2, wh / 2, 'Victory!', app.label_format(.victory))
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}
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}
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fn (app &App) draw_tiles() {
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xstart := app.ui.x_padding + app.ui.border_size
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ystart := app.ui.y_padding + app.ui.border_size + app.ui.header_size
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toffset := app.ui.tile_size + app.ui.padding_size
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tiles_size := min(app.ui.window_width, app.ui.window_height) - app.ui.border_size * 2
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// Draw the padding around the tiles
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app.gg.draw_rect(xstart, ystart, tiles_size, tiles_size, app.theme.padding_color)
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// Draw the actual tiles
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for y in 0..4 {
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for x in 0..4 {
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tidx := app.board.field[y][x]
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tile_color := if tidx < app.theme.tile_colors.len {
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app.theme.tile_colors[tidx]
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} else {
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// If there isn't a specific color for this tile, reuse the last color available
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app.theme.tile_colors.last()
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}
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anim_size := animation_length - app.atickers[y][x]
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tw := int(f64(app.ui.tile_size) / animation_length * anim_size)
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th := tw // square tiles, w == h
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xoffset := xstart + app.ui.padding_size + x * toffset + (app.ui.tile_size - tw) / 2
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yoffset := ystart + app.ui.padding_size + y * toffset + (app.ui.tile_size - th) / 2
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app.gg.draw_rect(xoffset, yoffset, tw, th, tile_color)
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if tidx != 0 { // 0 == blank spot
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xpos := xoffset + tw / 2
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ypos := yoffset + th / 2
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mut fmt := app.label_format(.tile)
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fmt = { fmt | size: int(f32(fmt.size - 1) / animation_length * anim_size) }
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match app.tile_format {
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.normal {
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app.gg.draw_text(xpos, ypos, '${1 << tidx}', fmt)
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} .log {
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app.gg.draw_text(xpos, ypos, '$tidx', fmt)
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} .exponent {
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app.gg.draw_text(xpos, ypos, '2', fmt)
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fs2 := int(f32(fmt.size) * 0.67)
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app.gg.draw_text(xpos + app.ui.tile_size / 10, ypos - app.ui.tile_size / 8,
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'$tidx', { fmt | size: fs2, align: gx.HorizontalAlign.left })
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} .shifts {
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fs2 := int(f32(fmt.size) * 0.6)
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app.gg.draw_text(xpos, ypos, '2<<${tidx - 1}', { fmt | size: fs2 })
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} .none_ {} // Don't draw any text here, colors only
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|
.end_ {} // Should never get here
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut app App) handle_swipe(start, end Pos) {
|
|
min_swipe_distance := min(app.ui.window_width, app.ui.window_height) / 10
|
|
dx := end.x - start.x
|
|
dy := end.y - start.y
|
|
adx := abs(dx)
|
|
ady := abs(dy)
|
|
dmax := max(adx, ady)
|
|
dmin := min(adx, ady)
|
|
|
|
if dmax < min_swipe_distance { return } // Swipe was too short
|
|
if dmax / dmin < 2 { return } // Swiped diagonally
|
|
|
|
if adx > ady {
|
|
if dx < 0 { app.move(.left) } else { app.move(.right) }
|
|
} else {
|
|
if dy < 0 { app.move(.up) } else { app.move(.down) }
|
|
}
|
|
}
|
|
|
|
fn (mut app App) on_key_down(key sapp.KeyCode) {
|
|
// these keys are independent from the game state:
|
|
match key {
|
|
.escape {
|
|
exit(0)
|
|
} .n {
|
|
app.new_game()
|
|
} .backspace {
|
|
if app.undo.len > 0 {
|
|
app.state = .play
|
|
app.board = app.undo.pop()
|
|
app.moves--
|
|
return
|
|
}
|
|
} .enter {
|
|
app.tile_format = int(app.tile_format) + 1
|
|
if app.tile_format == .end_ {
|
|
app.tile_format = .normal
|
|
}
|
|
} .j {
|
|
app.game_over()
|
|
} .t {
|
|
app.set_theme(if app.theme_idx == themes.len - 1 { 0 } else { app.theme_idx + 1 })
|
|
} else {}
|
|
}
|
|
|
|
if app.state == .play {
|
|
match key {
|
|
.w, .up { app.move(.up) }
|
|
.a, .left { app.move(.left) }
|
|
.s, .down { app.move(.down) }
|
|
.d, .right { app.move(.right) }
|
|
else {}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn on_event(e &sapp.Event, mut app App) {
|
|
match e.typ {
|
|
.key_down {
|
|
app.on_key_down(e.key_code)
|
|
} .resized, .restored, .resumed {
|
|
app.resize()
|
|
} .touches_began {
|
|
if e.num_touches > 0 {
|
|
t := e.touches[0]
|
|
app.touch.start_pos = { x: int(t.pos_x), y: int(t.pos_y) }
|
|
}
|
|
} .touches_ended {
|
|
if e.num_touches > 0 {
|
|
t := e.touches[0]
|
|
end_pos := Pos{ x: int(t.pos_x), y: int(t.pos_y) }
|
|
app.handle_swipe(app.touch.start_pos, end_pos)
|
|
}
|
|
} else {}
|
|
}
|
|
}
|
|
|
|
|
|
fn frame(mut app App) {
|
|
$if showfps? { app.perf.frame_sw.restart() }
|
|
app.gg.begin()
|
|
app.update_tickers()
|
|
app.draw()
|
|
app.gg.end()
|
|
$if showfps? { app.showfps() }
|
|
}
|
|
|
|
fn init(mut app App) {
|
|
app.resize()
|
|
$if showfps? {
|
|
app.perf.frame_sw.restart()
|
|
app.perf.second_sw.restart()
|
|
}
|
|
}
|
|
|
|
fn (mut app App) showfps() {
|
|
println(app.perf.frame_sw.elapsed().microseconds())
|
|
app.perf.frame++
|
|
f := app.perf.frame
|
|
if (f & 127) == 0 {
|
|
last_frame_us := app.perf.frame_sw.elapsed().microseconds()
|
|
ticks := f64(app.perf.second_sw.elapsed().milliseconds())
|
|
fps := f64(app.perf.frame - app.perf.frame_old) * ticks / 1000 / 4.5
|
|
last_fps := 128_000.0 / ticks
|
|
eprintln('frame ${f:-5} | avg. fps: ${fps:-5.1f} | avg. last 128 fps: ${last_fps:-5.1f} | last frame time: ${last_frame_us:-4}µs')
|
|
app.perf.second_sw.restart()
|
|
app.perf.frame_old = f
|
|
}
|
|
}
|
|
|
|
// TODO: Move this somewhere else (vlib?) once Android support is merged
|
|
$if android {
|
|
#include <android/log.h>
|
|
#define LOG_TAG "v_logcat_test"
|
|
#define printf(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
|
|
#define fprintf(a, ...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
|
|
}
|
|
|
|
fn main() {
|
|
mut app := &App{}
|
|
app.new_game()
|
|
|
|
mut font_path := os.resource_abs_path(os.join_path('../assets/fonts/', 'RobotoMono-Regular.ttf'))
|
|
$if android {
|
|
font_path = 'assets/RobotoMono-Regular.ttf'
|
|
}
|
|
|
|
mut window_title := 'V 2048'
|
|
// TODO: Make emcc a real platform ifdef
|
|
$if emscripten? {
|
|
// in emscripten, sokol uses `window_title` as the selector to the canvas it'll render to,
|
|
// and since `document.querySelector('V 2048')` isn't valid JS, we use `canvas` instead
|
|
window_title = 'canvas'
|
|
}
|
|
|
|
$if showfps? {
|
|
app.perf = &Perf{}
|
|
}
|
|
|
|
app.gg = gg.new_context({
|
|
bg_color: app.theme.bg_color
|
|
width: default_window_width
|
|
height: default_window_height
|
|
create_window: true
|
|
window_title: window_title
|
|
frame_fn: frame
|
|
event_fn: on_event
|
|
init_fn: init
|
|
user_data: app
|
|
font_path: font_path
|
|
})
|
|
app.gg.run()
|
|
} |