Better render backend naming

render_backend_chooser.odin

@@ -1,28 +1,35 @@
 package karl2d
 
+CONFIG_RENDER_BACKEND_NAME :: #config(KARL2D_RENDER_BACKEND, "")
+
 when ODIN_OS == .Windows {
-	DEFAULT_RENDER_BACKEND :: RENDER_BACKEND_INTERFACE_D3D11
+	DEFAULT_RENDER_BACKEND_NAME :: "d3d11"
+	AVAILABLE_RENDER_BACKENDS :: "d3d11, gl"
 } else when ODIN_OS == .Linux || ODIN_OS == .Darwin {
-	DEFAULT_RENDER_BACKEND :: RENDER_BACKEND_INTERFACE_GL
+	DEFAULT_RENDER_BACKEND_NAME :: "gl"
+	AVAILABLE_RENDER_BACKENDS :: "gl"
 } else when ODIN_OS == .JS {
-	DEFAULT_RENDER_BACKEND :: RENDER_BACKEND_INTERFACE_WEBGL
-} else when ODIN_OS == .Freestanding {
-	DEFAULT_RENDER_BACKEND :: RENDER_BACKEND_NIL
+	DEFAULT_RENDER_BACKEND_NAME :: "webgl"
+	AVAILABLE_RENDER_BACKENDS :: "webgl"
+} else {
+	DEFAULT_RENDER_BACKEND_NAME :: "nil"
+	AVAILABLE_RENDER_BACKENDS :: "nil"
 }
 
-CUSTOM_RENDER_BACKEND_STR :: #config(KARL2D_RENDER_BACKEND, "")
+when CONFIG_RENDER_BACKEND_NAME == "" {
+	RENDER_BACKEND_NAME :: DEFAULT_RENDER_BACKEND_NAME
+} else {
+	RENDER_BACKEND_NAME :: CONFIG_RENDER_BACKEND_NAME
+}
 
-when CUSTOM_RENDER_BACKEND_STR != "" {
-	when CUSTOM_RENDER_BACKEND_STR == "gl" {
-		RENDER_BACKEND :: RENDER_BACKEND_INTERFACE_GL
-	} else when CUSTOM_RENDER_BACKEND_STR == "d3d11" {
-		RENDER_BACKEND :: RENDER_BACKEND_INTERFACE_D3D11
-	} else when CUSTOM_RENDER_BACKEND_STR == "nil" {
-		RENDER_BACKEND :: RENDER_BACKEND_NIL
-	} else {
-		#panic(CUSTOM_RENDER_BACKEND_STR + " is not a valid value for KARL2D_RENDER_BACKEND. Available backends are: gl, d3d11")
-		//RENDER_BACKEND :: DEFAULT_RENDER_BACKEND
-	}
+when RENDER_BACKEND_NAME == "gl" {
+	RENDER_BACKEND :: RENDER_BACKEND_GL
+} else when RENDER_BACKEND_NAME == "d3d11" {
+	RENDER_BACKEND :: RENDER_BACKEND_D3D11
+} else when RENDER_BACKEND_NAME == "webgl" {
+	RENDER_BACKEND :: RENDER_BACKEND_WEBGL
+} else when RENDER_BACKEND_NAME == "nil" {
+	RENDER_BACKEND :: RENDER_BACKEND_NIL
 } else {
-	RENDER_BACKEND :: DEFAULT_RENDER_BACKEND
-}
+	#panic("'" + RENDER_BACKEND_NAME + "' is not a valid value for 'KARL2D_RENDER_BACKEND' on Operating System " + ODIN_OS_STRING + ". Available backends are: " + AVAILABLE_RENDER_BACKENDS)
+}

render_backend_d3d11.odin

@@ -5,7 +5,7 @@
 package karl2d
 
 @(private="package")
-RENDER_BACKEND_INTERFACE_D3D11 :: Render_Backend_Interface {
+RENDER_BACKEND_D3D11 :: Render_Backend_Interface {
 	state_size = d3d11_state_size,
 	init = d3d11_init,
 	shutdown = d3d11_shutdown,

render_backend_gl.odin

@@ -4,7 +4,7 @@
 package karl2d
 
 @(private="package")
-RENDER_BACKEND_INTERFACE_GL :: Render_Backend_Interface {
+RENDER_BACKEND_GL :: Render_Backend_Interface {
 	state_size = gl_state_size,
 	init = gl_init,
 	shutdown = gl_shutdown,

render_backend_webgl.odin

@@ -4,7 +4,7 @@
 package karl2d
 
 @(private="package")
-RENDER_BACKEND_INTERFACE_WEBGL :: Render_Backend_Interface {
+RENDER_BACKEND_WEBGL :: Render_Backend_Interface {
 	state_size = webgl_state_size,
 	init = webgl_init,
 	shutdown = webgl_shutdown,