Render sprites from sprite sheets (no animation yet)

component_spritesheet_renderer.go

@@ -0,0 +1,56 @@
+package GoRetro
+
+/*
+ * --------------------
+ * spriteSheetRenderer
+ * --------------------
+ */
+
+import (
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+type spriteSheetRenderer struct {
+	container     *Element
+	tex           *sdl.Texture
+	size          VectorInt32
+	sheetposition VectorInt32
+}
+
+func NewSpriteSheetRenderer(container *Element, renderer *sdl.Renderer, filename string, x int32, y int32, width int32, height int32) *spriteSheetRenderer {
+	sr := &spriteSheetRenderer{}
+	var err error
+
+	filename = Config.DataDir + filename
+	sr.tex, err = loadTextureFromBMP(filename, renderer)
+	if err != nil {
+		panic(err)
+	}
+
+	sr.size.X = width
+	sr.size.Y = height
+	sr.sheetposition.X = x
+	sr.sheetposition.Y = y
+
+	sr.container = container
+
+	return sr
+}
+
+func (sr *spriteSheetRenderer) onUpdate() error {
+	return nil
+}
+
+func (sr *spriteSheetRenderer) onDraw() error {
+	return drawTexture(
+		sr.tex,
+		sr.size,
+		sr.sheetposition,
+		sr.container.Position,
+		sr.container.Rotation,
+		sr.container.Renderer)
+}
+
+func (sr *spriteSheetRenderer) onCollision(other *Element) error {
+	return nil
+}