raylib-go/examples/textures/image_text/main.go
2025-06-22 17:48:18 -04:00

61 lines
1.7 KiB
Go

package main
import (
rl "git.terah.dev/UnrealXR/raylib-go/raylib"
)
func main() {
screenWidth := int32(800)
screenHeight := int32(450)
rl.InitWindow(screenWidth, screenHeight, "raylib [textures] example - image text drawing")
// TTF Font loading with custom generation parameters
font := rl.LoadFontEx("fonts/KAISG.ttf", 64, nil)
parrots := rl.LoadImage("parrots.png") // Load image in CPU memory (RAM)
// Draw over image using custom font
rl.ImageDrawTextEx(parrots, rl.NewVector2(20, 20), font, "[Parrots font drawing]", float32(font.BaseSize), 0, rl.White)
texture := rl.LoadTextureFromImage(parrots) // Image converted to texture, uploaded to GPU memory (VRAM)
rl.UnloadImage(parrots) // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
position := rl.NewVector2(float32(screenWidth)/2-float32(texture.Width)/2, float32(screenHeight)/2-float32(texture.Height)/2-20)
showFont := false
rl.SetTargetFPS(60)
for !rl.WindowShouldClose() {
if rl.IsKeyDown(rl.KeySpace) {
showFont = true
} else {
showFont = false
}
rl.BeginDrawing()
rl.ClearBackground(rl.RayWhite)
if !showFont {
// Draw texture with text already drawn inside
rl.DrawTextureV(texture, position, rl.White)
// Draw text directly using sprite font
rl.DrawTextEx(font, "[Parrots font drawing]", rl.NewVector2(position.X+20, position.Y+20+280), float32(font.BaseSize), 0, rl.White)
} else {
rl.DrawTexture(font.Texture, screenWidth/2-font.Texture.Width/2, 50, rl.Black)
}
rl.DrawText("PRESS SPACE to SEE USED SPRITEFONT ", 290, 420, 10, rl.DarkGray)
rl.EndDrawing()
}
rl.UnloadTexture(texture)
rl.UnloadFont(font)
rl.CloseWindow()
}