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tetris: more accurate fps counters on -d showfps

pull/5204/head
Delyan Angelov 2020-06-03 19:52:44 +03:00
parent d286f67220
commit e91642e615
1 changed files with 7 additions and 7 deletions
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14
examples/tetris/tetris.v
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@ -9,7 +9,6 @@ import time
import gx import gx
import gg2 as gg import gg2 as gg
import sokol.sapp import sokol.sapp
import sokol.sfons
const ( const (
block_size = 20 // pixels block_size = 20 // pixels
@ -130,6 +129,7 @@ struct Game {
//ft &freetype.FreeType //ft &freetype.FreeType
//ft &ft.FT //ft &ft.FT
font_loaded bool font_loaded bool
// frame/time counters:
frame int frame int
frame_old int frame_old int
frame_sw time.StopWatch = time.new_stopwatch({}) frame_sw time.StopWatch = time.new_stopwatch({})
@ -139,11 +139,11 @@ struct Game {
[if showfps] [if showfps]
fn (game &Game) showfps() { fn (game &Game) showfps() {
game.frame++ game.frame++
if 0 == game.frame % 60 { last_frame_ms := f64(game.frame_sw.elapsed().microseconds())/1000.0
elapsed_time_ms := game.second_sw.elapsed().milliseconds() ticks := f64(game.second_sw.elapsed().microseconds())/1000.0
last_frame_ms := game.frame_sw.elapsed().milliseconds() if ticks > 999.0 {
fps := (game.frame-game.frame_old)*(1000/elapsed_time_ms) fps := f64(game.frame - game.frame_old)*ticks/1000.0
eprintln('fps: ${fps:3} | last frame took: ${last_frame_ms:2}ms | frame: ${game.frame:6} ') eprintln('fps: ${fps:5.1f} | last frame took: ${last_frame_ms:6.3f}ms | frame: ${game.frame:6} ')
game.second_sw.restart() game.second_sw.restart()
game.frame_old = game.frame game.frame_old = game.frame
} }
@ -154,8 +154,8 @@ fn frame(game &Game) {
//C.sfons_flush(game.ft.fons) //C.sfons_flush(game.ft.fons)
game.gg.begin() game.gg.begin()
game.draw_scene() game.draw_scene()
game.gg.end()
game.showfps() game.showfps()
game.gg.end()
} }
fn main() { fn main() {