From 8c8fe02000057bcbb659e8a318d6ec35fcd6e574 Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@vlang.io>
Date: Mon, 21 Sep 2020 02:42:28 +0200
Subject: [PATCH] gg: mouse_move, mouse_down

---
 examples/tetris/tetris.v |  4 +++-
 vlib/gg/gg.v             | 20 ++++++++++++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/examples/tetris/tetris.v b/examples/tetris/tetris.v
index 2ac6e07de3..06cc636b7e 100644
--- a/examples/tetris/tetris.v
+++ b/examples/tetris/tetris.v
@@ -143,7 +143,9 @@ fn (mut game Game) showfps() {
 	ticks := f64(game.second_sw.elapsed().microseconds())/1000.0
 	if ticks > 999.0 {
 		fps := f64(game.frame - game.frame_old)*ticks/1000.0
-		eprintln('fps: ${fps:5.1f} | last frame took: ${last_frame_ms:6.3f}ms | frame: ${game.frame:6} ')
+		$if debug {
+			eprintln('fps: ${fps:5.1f} | last frame took: ${last_frame_ms:6.3f}ms | frame: ${game.frame:6} ')
+		}
 		game.second_sw.restart()
 		game.frame_old = game.frame
 	}
diff --git a/vlib/gg/gg.v b/vlib/gg/gg.v
index 12859543de..ba2caac8de 100644
--- a/vlib/gg/gg.v
+++ b/vlib/gg/gg.v
@@ -17,6 +17,8 @@ pub type FNFail = fn (msg string, x voidptr)
 
 pub type FNKeyDown = fn (c sapp.KeyCode, m sapp.Modifier, x voidptr)
 
+pub type FNMove = fn (x, y f32, z voidptr)
+
 pub type FNChar = fn (c u32, x voidptr)
 
 pub struct Config {
@@ -41,6 +43,8 @@ pub:
 	event_fn          FNEvent = voidptr(0)
 	keydown_fn        FNKeyDown = voidptr(0) // special case of event_fn
 	char_fn           FNChar = voidptr(0) // special case of event_fn
+	move_fn           FNMove= voidptr(0) // special case of event_fn
+	click_fn           FNMove= voidptr(0) // special case of event_fn
 	wait_events       bool // set this to true for UIs, to save power
 	fullscreen        bool
 	scale             f32 = 1.0 // vid needs this
@@ -140,8 +144,8 @@ fn gg_frame_fn(user_data voidptr) {
 // where it thinks that &sapp.Event(x) is a function call,
 // instead of a cast, if v has not yet seen &sapp.Event used
 // as a parameter type.
-fn todo_remove_this(e &sapp.Event) {
-}
+//fn todo_remove_this(e &sapp.Event) {
+//}
 
 fn gg_event_fn(ce &C.sapp_event, user_data voidptr) {
 	e := &sapp.Event(ce)
@@ -162,6 +166,18 @@ fn gg_event_fn(ce &C.sapp_event, user_data voidptr) {
 				cfn(e.char_code, g.config.user_data)
 			}
 		}
+		.mouse_move{
+			if g.config.move_fn != voidptr(0) {
+				cfn := g.config.move_fn
+				cfn(e.mouse_x / g.scale, e.mouse_y / g.scale, g.config.user_data)
+			}
+		}
+		.mouse_down{
+			if g.config.click_fn != voidptr(0) {
+				cfn := g.config.click_fn
+				cfn(e.mouse_x / g.scale, e.mouse_y / g.scale, g.config.user_data)
+			}
+		}
 		else {}
 	}
 }