94 lines
2.7 KiB
Go
94 lines
2.7 KiB
Go
package main
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import (
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"github.com/gen2brain/raylib-go/raylib"
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)
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const numTextures = 7
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func main() {
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screenWidth := 800
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screenHeight := 450
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rl.InitWindow(int32(screenWidth), int32(screenHeight), "raylib [textures] example - procedural images generation")
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verticalGradient := rl.GenImageGradientV(screenWidth, screenHeight, rl.Red, rl.Blue)
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horizontalGradient := rl.GenImageGradientH(screenWidth, screenHeight, rl.Red, rl.Blue)
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radialGradient := rl.GenImageGradientRadial(screenWidth, screenHeight, 0, rl.White, rl.Black)
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checked := rl.GenImageChecked(screenWidth, screenHeight, 32, 32, rl.Red, rl.Blue)
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whiteNoise := rl.GenImageWhiteNoise(screenWidth, screenHeight, 0.5)
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perlinNoise := rl.GenImagePerlinNoise(screenWidth, screenHeight, 50, 50, 4.0)
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cellular := rl.GenImageCellular(screenWidth, screenHeight, 32)
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textures := make([]rl.Texture2D, numTextures)
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textures[0] = rl.LoadTextureFromImage(verticalGradient)
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textures[1] = rl.LoadTextureFromImage(horizontalGradient)
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textures[2] = rl.LoadTextureFromImage(radialGradient)
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textures[3] = rl.LoadTextureFromImage(checked)
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textures[4] = rl.LoadTextureFromImage(whiteNoise)
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textures[5] = rl.LoadTextureFromImage(perlinNoise)
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textures[6] = rl.LoadTextureFromImage(cellular)
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// Unload image data (CPU RAM)
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rl.UnloadImage(verticalGradient)
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rl.UnloadImage(horizontalGradient)
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rl.UnloadImage(radialGradient)
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rl.UnloadImage(checked)
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rl.UnloadImage(whiteNoise)
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rl.UnloadImage(perlinNoise)
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rl.UnloadImage(cellular)
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currentTexture := 0
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rl.SetTargetFPS(60)
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for !rl.WindowShouldClose() {
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if rl.IsMouseButtonPressed(rl.MouseLeftButton) {
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currentTexture = (currentTexture + 1) % numTextures // Cycle between the textures
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}
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rl.BeginDrawing()
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rl.ClearBackground(rl.RayWhite)
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rl.DrawTexture(textures[currentTexture], 0, 0, rl.White)
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rl.DrawRectangle(30, 400, 325, 30, rl.Fade(rl.SkyBlue, 0.5))
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rl.DrawRectangleLines(30, 400, 325, 30, rl.Fade(rl.White, 0.5))
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rl.DrawText("MOUSE LEFT BUTTON to CYCLE PROCEDURAL TEXTURES", 40, 410, 10, rl.White)
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switch currentTexture {
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case 0:
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rl.DrawText("VERTICAL GRADIENT", 560, 10, 20, rl.RayWhite)
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break
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case 1:
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rl.DrawText("HORIZONTAL GRADIENT", 540, 10, 20, rl.RayWhite)
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break
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case 2:
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rl.DrawText("RADIAL GRADIENT", 580, 10, 20, rl.LightGray)
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break
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case 3:
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rl.DrawText("CHECKED", 680, 10, 20, rl.RayWhite)
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break
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case 4:
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rl.DrawText("WHITE NOISE", 640, 10, 20, rl.Red)
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break
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case 5:
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rl.DrawText("PERLIN NOISE", 630, 10, 20, rl.RayWhite)
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break
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case 6:
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rl.DrawText("CELLULAR", 670, 10, 20, rl.RayWhite)
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break
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default:
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break
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}
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rl.EndDrawing()
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}
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for _, t := range textures {
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rl.UnloadTexture(t)
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}
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rl.CloseWindow()
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}
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