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examples: add more control keys to tunnel.v

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Delyan Angelov 2025-02-12 00:28:47 +02:00
parent fa4e61cee0
commit 126f5c24e4
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GPG Key ID: 66886C0F12D595ED
1 changed files with 46 additions and 10 deletions
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56
examples/hot_reload/tunnel.v
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@ -11,12 +11,7 @@ fn main() {
width: 1024
height: 768
frame_fn: unsafe { state.draw }
event_fn: fn (event &gg.Event, ctx voidptr) {
if event.typ == .char && event.char_code == `f` {
gg.toggle_fullscreen()
return
}
}
event_fn: unsafe { state.on_event }
)
}
@ -35,6 +30,7 @@ struct State {
mut:
t f32
real_t f32
drt f32 = 0.1
tparams gg.DrawTextParams
rects []BigRect
}
@ -45,7 +41,9 @@ const colors = []gg.Color{len: 1024, init: gg.Color{u8(100 +
fn init_state() State {
mut state := State{
real_t: 1300
t: 0
real_t: 120
drt: 0.1
tparams: gg.DrawTextParams{
x: 40
size: 20
@ -69,6 +67,41 @@ fn init_state() State {
return state
}
fn (mut state State) on_event(e &gg.Event, ctx voidptr) {
if e.typ == .char {
if e.char_code == `f` {
gg.toggle_fullscreen()
return
}
if e.char_code == `1` {
state.real_t -= 100
}
if e.char_code == `2` {
state.real_t += 100
}
if e.char_code == `3` {
state.t -= 100
}
if e.char_code == `4` {
state.t += 100
}
if e.char_code == `5` {
state.rects[0].w += 10
}
if e.char_code == `6` {
state.rects[0].w -= 10
}
if e.char_code == `r` {
state.real_t = 120
state.t = 0
state.rects[0].w = 30
}
if e.char_code == ` ` {
state.drt = if state.drt > 0.0001 { f32(0.0) } else { 0.1 }
}
}
}
fn (mut state State) draw(ctx &gg.Context) {
update(mut state)
ctx.begin()
@ -80,7 +113,7 @@ fn (mut state State) draw(ctx &gg.Context) {
ctx.draw_text2(gg.DrawTextParams{
...state.tparams
y: 0
text: 'real_t: ${state.real_t:7.3f}, r: ${state.t:7.3f}, r0.x: ${r0.x:7.3f}, r0.y: ${r0.y:7.3f}'
text: 'rt[1,2]: ${state.real_t:08.3f}, t[3,4]: ${state.t:08.3f}, r0.x: ${r0.x:07.3f}, r0.y: ${r0.y:07.3f}, r0.w[5,6]: ${r0.w:4.1f}, [f]-toggle fs, [r]-reset, [ ]-pause'
})
draw_center_point(ctx, r0, state.t)
ctx.show_fps()
@ -89,8 +122,11 @@ fn (mut state State) draw(ctx &gg.Context) {
@[live]
fn update(mut state State) {
state.real_t += 0.1
state.t += 0.5 * math.sinf(state.real_t / 7000)
if state.drt <= 0.0001 {
return
}
state.real_t += state.drt
state.t += 0.5 * math.sinf(state.real_t / 1000)
mut r0 := &state.rects[0]
r0.t = state.t
r0.x = 550 + 450 * math.sinf(state.t / 10) * math.sinf(state.t / 50)