From: Lukas Krickl <lukas@krickl.dev>
Date: Fri, 6 Mar 2026 07:45:41 +0000 (+0100)
Subject: camera: Added zoom vector. Fixed camera visible call.
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=4e4adfa02911399da1f1b1b9ded2408d0405d56c;p=lrts%2F.git

camera: Added zoom vector. Fixed camera visible call.
---

diff --git a/src/t_camera.c b/src/t_camera.c
index d8f9522..94dac55 100644
--- a/src/t_camera.c
+++ b/src/t_camera.c
@@ -10,7 +10,7 @@ struct t_camera t_camera_init(i32 viewport_x, i32 viewport_y) {
 	c.viewport_x = viewport_x;
 	c.viewport_y = viewport_y;
 
-	c.zoom = 2;
+	c.zoom = 1;
 
 	return c;
 }
@@ -26,7 +26,7 @@ void t_camera_scroll(struct t_camera *c, i32 by_x, i32 by_y) {
 lrts_bool t_camera_is_visible_screen(struct t_camera *c, i32 x, i32 y) {
 	lrts_assert(c);
 	lrts_assert(c->zoom);
-	return u_point_in_rect(x, y, c->x, c->y, c->viewport_x / c->zoom, c->viewport_y / c->zoom);
+	return u_point_in_rect(x, y, c->x, c->y, c->viewport_x, c->viewport_y);
 }
 
 
@@ -54,6 +54,13 @@ i32 t_camera_zoom(struct t_camera *c, i32 n) {
 	return n * t_camera_zoom_factor(c);
 }
 
+struct u_vec2 t_camera_zoom_vec2(struct t_camera *c, struct u_vec2 v) {
+	struct u_vec2 r;
+	r.x = t_camera_zoom(c, v.x);
+	r.y = t_camera_zoom(c, v.y);
+	return r;
+}
+
 i32 t_camera_zoom_factor(struct t_camera *c) {
 	lrts_assert(c);
 	lrts_assert(c->zoom);
diff --git a/src/t_camera.h b/src/t_camera.h
index 71e79da..71f457e 100644
--- a/src/t_camera.h
+++ b/src/t_camera.h
@@ -2,6 +2,7 @@
 #define T_CAMERA_H__
 
 #include "u_defs.h"
+#include "u_math.h"
 
 struct t_camera {
 	i32 x;
@@ -36,6 +37,8 @@ lrts_bool t_camera_is_visible_screen(struct t_camera *c, i32 x, i32 y);
 /* multiplies by zoom factor */
 i32 t_camera_zoom(struct t_camera *c, i32 n);
 
+struct u_vec2 t_camera_zoom_vec2(struct t_camera *c, struct u_vec2 v);
+
 i32 t_camera_zoom_factor(struct t_camera *c);