131 lines
5.0 KiB
Lua
131 lines
5.0 KiB
Lua
-------------------------------------------------------------------------------------------
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--
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-- raylib [audio] example - Module playing (streaming)
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--
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-- This example has been created using raylib 1.6 (www.raylib.com)
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-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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--
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-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
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--
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-------------------------------------------------------------------------------------------
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MAX_CIRCLES = 64
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typedef struct { -- TODO: Find a Lua alternative: TABLES?
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Vector2 position
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float radius
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float alpha
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float speed
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Color color
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} CircleWave
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-- Initialization
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-------------------------------------------------------------------------------------------
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local screenWidth = 800
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local screenHeight = 450
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InitWindow(screenWidth, screenHeight, "raylib [audio] example - module playing (streaming)")
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InitAudioDevice() -- Initialize audio device
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local colors = { ORANGE, RED, GOLD, LIME, BLUE, VIOLET, BROWN, LIGHTGRAY, PINK,
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YELLOW, GREEN, SKYBLUE, PURPLE, BEIGE }
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-- Creates ome circles for visual effect
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local circles = {}
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for i = MAX_CIRCLES, 1, -1 do
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circles[i].alpha = 0.0
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circles[i].radius = GetRandomValue(10, 40)
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circles[i].position.x = GetRandomValue(circles[i].radius, screenWidth - circles[i].radius)
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circles[i].position.y = GetRandomValue(circles[i].radius, screenHeight - circles[i].radius)
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circles[i].speed = (float)GetRandomValue(1, 100)/20000.0
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circles[i].color = colors[GetRandomValue(1, 14)]
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end
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-- Load postprocessing bloom shader
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local shader = LoadShader("resources/shaders/glsl330/base.vs",
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"resources/shaders/glsl330/bloom.fs")
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-- Create a RenderTexture2D to be used for render to texture
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local target = LoadRenderTexture(screenWidth, screenHeight)
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local xm = LoadMusicStream("resources/audio/mini1111.xm")
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PlayMusicStream(xm)
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local timePlayed = 0.0
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SetTargetFPS(60) -- Set our game to run at 60 frames-per-second
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-------------------------------------------------------------------------------------------
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-- Main game loop
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while not WindowShouldClose() do -- Detect window close button or ESC key
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-- Update
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---------------------------------------------------------------------------------------
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for i = MAX_CIRCLES, 1, -1 do
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circles[i].alpha += circles[i].speed
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circles[i].radius += circles[i].speed*10.0
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if (circles[i].alpha > 1.0) then circles[i].speed = circles[i].speed*-1 end
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if (circles[i].alpha <= 0.0) then
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circles[i].alpha = 0.0
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circles[i].radius = GetRandomValue(10, 40)
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circles[i].position.x = GetRandomValue(circles[i].radius, screenWidth - circles[i].radius)
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circles[i].position.y = GetRandomValue(circles[i].radius, screenHeight - circles[i].radius)
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circles[i].color = colors[GetRandomValue(0, 13)]
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circles[i].speed = (float)GetRandomValue(1, 100)/20000.0
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end
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end
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-- Get timePlayed scaled to bar dimensions
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timePlayed = (GetMusicTimePlayed(xm)/GetMusicTimeLength(xm)*(screenWidth - 40))*2
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UpdateMusicStream(xm) -- Update music buffer with new stream data
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---------------------------------------------------------------------------------------
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-- Draw
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---------------------------------------------------------------------------------------
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BeginDrawing()
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ClearBackground(BLACK)
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BeginTextureMode(target) -- Enable drawing to texture
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for i = MAX_CIRCLES, 1, -1 do
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DrawCircleV(circles[i].position, circles[i].radius, Fade(circles[i].color, circles[i].alpha))
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end
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EndTextureMode() -- End drawing to texture (now we have a texture available for next passes)
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BeginShaderMode(shader)
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-- NOTE: Render texture must be y-flipped due to default OpenGL coordinates (left-bottom)
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DrawTextureRec(target.texture, Rectangle(0, 0, target.texture.width, -target.texture.height), Vector2(0, 0), WHITE)
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EndShaderMode()
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-- Draw time bar
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DrawRectangle(20, screenHeight - 20 - 12, screenWidth - 40, 12, LIGHTGRAY)
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DrawRectangle(20, screenHeight - 20 - 12, (int)timePlayed, 12, MAROON)
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DrawRectangleLines(20, screenHeight - 20 - 12, screenWidth - 40, 12, WHITE)
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EndDrawing()
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---------------------------------------------------------------------------------------
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end
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-- De-Initialization
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-------------------------------------------------------------------------------------------
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UnloadShader(shader) -- Unload shader
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UnloadRenderTexture(target) -- Unload render texture
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UnloadMusicStream(xm) -- Unload music stream buffers from RAM
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CloseAudioDevice() -- Close audio device (music streaming is automatically stopped)
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CloseWindow() -- Close window and OpenGL context
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-------------------------------------------------------------------------------------------
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return 0
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} |