49 lines
1.3 KiB
Lua
49 lines
1.3 KiB
Lua
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local traxx = require "traxx"
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require "utils"
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require "string"
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require "math"
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function start_blasting(track)
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local blast = table.shallow_copy(traxx[track])
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blast.channel = "blast"
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ctx.udata.blast = blast
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ctx.udata.last_beat = ctx.udata.time + 60 / blast.bpm
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audio_play(ctx.udata.blast)
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end
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function game_tick()
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if ctx.initialization_needed then
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ctx.udata = {
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time = 0,
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beat = 0
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}
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start_blasting("mod22")
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end
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local state = ctx.udata
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draw_rectangle {
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rect = { w = 960, h = 540 },
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color = { r = 125, a = 255 }
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}
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state.time = state.time + ctx.frame_duration
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if state.time - state.last_beat > 60 / state.blast.bpm then
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state.last_beat = state.last_beat + 60 / state.blast.bpm
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state.beat = state.beat + 1
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-- draw_rectangle {
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-- rect = { w = 64, h = 64 },
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-- color = { r = 255, a = 255 }
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-- }
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end
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local wobble = sinease(12, state.time - state.beat * (60 / state.blast.bpm) , (60 / state.blast.bpm) / 1.5, 0)
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for i = 0,10 do
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draw_sprite {
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texture = "art/creatures/meathead/" .. string.format("dance-%s.png", pingpong(state.beat, 3)),
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rect = { w = 64, h = 64 + wobble, x = 300 + i * 32, y = 300 - wobble }
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}
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end
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end
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