clamp mous

5 files changed, 42 insertions, 16 deletions

diff --git a/events/input.go b/events/input.go
new file mode 100644
index 0000000..8fc1591
--- /dev/null
+++ b/events/input.go
@@ -0,0 +1,13 @@
+package events
+
+type MouseMotionHandler interface {
+	ProcessMouseMotion(ev MouseMotion)
+}
+
+type MousePressHandler interface {
+	ProcessMousePress(ev MousePress)
+}
+
+type WindowChangeHandler interface {
+	ProcessWindowChange(ev WindowChange)
+}
diff --git a/events/poll.go b/events/poll.go
index faa4151..c57621e 100644
--- a/events/poll.go
+++ b/events/poll.go
@@ -27,6 +27,13 @@ func Poll(delta uint64) ([]any, error) {
 				Which:     DeviceID(ev.Which),
 				IsPressed: ev.Down,
 			})
+		case sdl.EVENT_WINDOW_SHOWN:
+			win := event.Window()
+			w, h, _ := win.Size()
+			evs = append(evs, WindowChange{
+				Width:  w,
+				Height: h,
+			})
 		case sdl.EVENT_WINDOW_RESIZED:
 			ev := event.WindowEvent()
 			evs = append(evs, WindowChange{
diff --git a/input/input.go b/input/input.go
deleted file mode 100644
index 5a0dea7..0000000
--- a/input/input.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package input
-
-import "ponger/events"
-
-type MouseMotionHandler interface {
-	ProcessMouseMotion(ev events.MouseMotion)
-}
-
-type MousePressHandler interface {
-	ProcessMousePress(ev events.MousePress)
-}
diff --git a/objs/cursor.go b/objs/cursor.go
index 817279b..2a676fe 100644
--- a/objs/cursor.go
+++ b/objs/cursor.go
@@ -8,6 +8,12 @@ import (
 
 type Cursor struct {
 	*ecs.GameObject
+	MaxX, MaxY float32
+}
+
+func (c *Cursor) ProcessWindowChange(ev events.WindowChange) {
+	c.MaxX = float32(ev.Width)
+	c.MaxY = float32(ev.Height)
 }
 
 func (c *Cursor) Render(renderer *sdl.Renderer) {
@@ -31,6 +37,12 @@ func (c *Cursor) ProcessMouseMotion(ev events.MouseMotion) {
 	if c.Position.Y < 0 {
 		c.Position.Y = 0
 	}
+	if c.Position.X > c.MaxX {
+		c.Position.X = c.MaxX
+	}
+	if c.Position.Y > c.MaxY {
+		c.Position.Y = c.MaxY
+	}
 }
 
 func (c *Cursor) GO() *ecs.GameObject {
diff --git a/tree/tree.go b/tree/tree.go
index a48dbc0..d39d296 100644
--- a/tree/tree.go
+++ b/tree/tree.go
@@ -4,7 +4,6 @@ import (
 	"github.com/Zyko0/go-sdl3/sdl"
 	"ponger/ecs"
 	"ponger/events"
-	"ponger/input"
 	"ponger/render"
 )
 
@@ -28,16 +27,22 @@ func ParseRecursive(current ecs.IsGameObject, delta uint64, renderer *sdl.Render
 }
 
 func ParseSingle(obj ecs.IsGameObject, delta uint64, renderer *sdl.Renderer, evs ...any) {
-	switch impl := obj.(type) {
-	case input.MouseMotionHandler:
+	if impl, ok := obj.(events.WindowChangeHandler); ok {
+		for _, e := range events.OfType[events.WindowChange](evs...) {
+			impl.ProcessWindowChange(e)
+		}
+	}
+	if impl, ok := obj.(events.MouseMotionHandler); ok {
 		for _, e := range events.OfType[events.MouseMotion](evs...) {
 			impl.ProcessMouseMotion(e)
 		}
-	case input.MousePressHandler:
+	}
+	if impl, ok := obj.(events.MousePressHandler); ok {
 		for _, e := range events.OfType[events.MousePress](evs...) {
 			impl.ProcessMousePress(e)
 		}
-	case render.Renders:
+	}
+	if impl, ok := obj.(render.Renders); ok {
 		impl.Render(renderer)
 	}
 }