From 48215d06a6cc0753a839e58c3403d34f69c250d4 Mon Sep 17 00:00:00 2001
From: ewy <ewy0@protonmail.com>
Date: Fri, 14 Aug 2026 12:32:05 +0200
Subject: add components in addition to gameobject interfaces

---
 objs/cursor.go | 23 ++++++++++++++++-------
 objs/root.go   |  4 ++--
 2 files changed, 18 insertions(+), 9 deletions(-)

(limited to 'objs')

diff --git a/objs/cursor.go b/objs/cursor.go
index 2a676fe..bf4d624 100644
--- a/objs/cursor.go
+++ b/objs/cursor.go
@@ -9,6 +9,12 @@ import (
 type Cursor struct {
 	*ecs.GameObject
 	MaxX, MaxY float32
+	Trail      []sdl.FPoint
+	Pressed    bool
+}
+
+func (c *Cursor) ProcessMousePress(ev events.MousePress) {
+	c.Pressed = ev.IsPressed
 }
 
 func (c *Cursor) ProcessWindowChange(ev events.WindowChange) {
@@ -17,7 +23,12 @@ func (c *Cursor) ProcessWindowChange(ev events.WindowChange) {
 }
 
 func (c *Cursor) Render(renderer *sdl.Renderer) {
-	renderer.SetDrawColor(255, 0, 0, 255)
+	if c.Pressed {
+		c.Trail = append(c.Trail, c.Position)
+	} else {
+		c.Trail = nil
+	}
+	c.Safe(renderer.SetDrawColor(255, 0, 0, 255))
 	size := float32(13)
 	r := &sdl.FRect{
 		X: c.Position.X - size/2,
@@ -25,7 +36,10 @@ func (c *Cursor) Render(renderer *sdl.Renderer) {
 		W: size,
 		H: size,
 	}
-	renderer.RenderRect(r)
+	c.Safe(renderer.RenderRect(r))
+	if c.Trail != nil {
+		c.Safe(renderer.RenderLines(c.Trail))
+	}
 }
 
 func (c *Cursor) ProcessMouseMotion(ev events.MouseMotion) {
@@ -44,11 +58,6 @@ func (c *Cursor) ProcessMouseMotion(ev events.MouseMotion) {
 		c.Position.Y = c.MaxY
 	}
 }
-
-func (c *Cursor) GO() *ecs.GameObject {
-	return c.GameObject
-}
-
 func NewCursor() ecs.IsGameObject {
 	return &Cursor{
 		GameObject: &ecs.GameObject{},
diff --git a/objs/root.go b/objs/root.go
index 44309ac..92f3804 100644
--- a/objs/root.go
+++ b/objs/root.go
@@ -11,8 +11,8 @@ type Root struct {
 }
 
 func (root *Root) Render(r *sdl.Renderer) {
-	r.SetDrawColor(0, 0, 0, 255)
-	r.Clear()
+	root.Safe(r.SetDrawColor(0, 0, 0, 255))
+	root.Safe(r.Clear())
 }
 
 func NewRoot(window *sdl.Window, children ...ecs.IsGameObject) ecs.IsGameObject {
-- 
cgit v1.3.1