From 8eb07b489b03b71f37eb8caab2fbf57817c69c40 Mon Sep 17 00:00:00 2001
From: Ulysse Cura <ulysse.cura@google.com>
Date: Sun, 9 Aug 2026 14:11:16 +0200
Subject: [PATCH] Working interaction from player.

---
 SDL3_Core                                   |  2 +-
 src/components/headers/interact_component.h |  1 +
 src/components/interact_component.c         |  2 +
 src/components/player_system.c              | 59 +++++++++++++++++----
 4 files changed, 54 insertions(+), 10 deletions(-)

diff --git a/SDL3_Core b/SDL3_Core
index a8aacc0..2179c7e 160000
--- a/SDL3_Core
+++ b/SDL3_Core
@@ -1 +1 @@
-Subproject commit a8aacc04ef2bff71e9ba340673216ea94454f3ea
+Subproject commit 2179c7eb94e8c563d2a0dbe8b3e9048cf2e27512
diff --git a/src/components/headers/interact_component.h b/src/components/headers/interact_component.h
index 9499dae..d3466f5 100644
--- a/src/components/headers/interact_component.h
+++ b/src/components/headers/interact_component.h
@@ -11,6 +11,7 @@ typedef struct interact_component_data_t {
     fvector2d_t position;
     fvector2d_t scale;
     frect_t bounds;
+    bool activated;
 } interact_component_data_t;
 
 int interact_component_init(component_t *component);
diff --git a/src/components/interact_component.c b/src/components/interact_component.c
index 6ccd3c9..8fe8bc5 100644
--- a/src/components/interact_component.c
+++ b/src/components/interact_component.c
@@ -26,6 +26,8 @@ inline int interact_component_init(component_t *component)
         .y = 1.0f
     };
 
+    component_data->activated = true;
+
     return EXIT_SUCCESS;
 }
 
diff --git a/src/components/player_system.c b/src/components/player_system.c
index 624f7fd..5985797 100644
--- a/src/components/player_system.c
+++ b/src/components/player_system.c
@@ -1,10 +1,12 @@
 #include "player_system.h"
 
 #include "game.h"
-#include "animation_system.h"
 #include "sprite_component.h"
+#include "animation_system.h"
+#include "interact_component.h"
 #include "physics_system.h"
 #include "memory_alloc.h"
+#include "errors.h"
 
 inline int player_system_init(component_t *component)
 {
@@ -44,7 +46,23 @@ inline int player_system_init(component_t *component)
     return EXIT_SUCCESS;
 }
 
-// Only for this file
+static void player_system_get_inputs(player_system_data_t *system_data);
+static void player_system_set_velocity(player_system_data_t *system_data);
+static int player_system_set_animation_and_speed(player_system_data_t *system_data);
+static int player_system_process_interaction(player_system_data_t *system_data);
+
+inline int player_system_update(component_t *component)
+{
+    player_system_data_t *system_data = component->data;
+
+    player_system_get_inputs(system_data);
+    player_system_set_velocity(system_data);
+    if(player_system_set_animation_and_speed(system_data)) return EXIT_FAILURE;
+    if(player_system_process_interaction(system_data)) return EXIT_FAILURE;
+
+    return EXIT_SUCCESS;
+}
+
 static inline void player_system_get_inputs(player_system_data_t *system_data)
 {
     system_data->last_state = system_data->state;
@@ -75,7 +93,6 @@ static inline void player_system_get_inputs(player_system_data_t *system_data)
     }
 }
 
-// Only for this file
 static inline void player_system_set_velocity(player_system_data_t *system_data)
 {
     physics_system_data_t *physics_system_data = system_data->physics_system_data;
@@ -95,7 +112,6 @@ static inline void player_system_set_velocity(player_system_data_t *system_data)
     }
 }
 
-// Only for this file
 static inline int player_system_set_animation_and_speed(player_system_data_t *system_data)
 {
     animation_system_data_t *animation_system_data = system_data->animation_system_data;
@@ -144,13 +160,38 @@ static inline int player_system_set_animation_and_speed(player_system_data_t *sy
     return EXIT_SUCCESS;
 }
 
-inline int player_system_update(component_t *component)
+// Args : player_system_data_t *system_data
+static inline int action_detect_activate_interact(elem_t *elem, va_list args)
 {
-    player_system_data_t *system_data = component->data;
+    const entity_t *target_entity = elem->data;
+    const player_system_data_t *system_data = va_arg(args, player_system_data_t *);
 
-    player_system_get_inputs(system_data);
-    player_system_set_velocity(system_data);
-    if(player_system_set_animation_and_speed(system_data)) return EXIT_FAILURE;
+    const component_t *target_interact_component = entity_get_component(target_entity, INTERACT_COMPONENT);
+    if(!target_interact_component) return EXIT_SUCCESS;
+
+    if(!((interact_component_data_t *)target_interact_component->data)->activated)
+    {
+        return EXIT_SUCCESS;
+    }
+
+    const frect_t *hitbox_bounds = &system_data->physics_system_data->hitbox_component_data->bounds;
+    const frect_t *target_interact_bounds = &((interact_component_data_t *)target_interact_component->data)->bounds;
+
+    if(fhas_intersection(hitbox_bounds, target_interact_bounds))
+    {
+        static size_t i = 0;
+        debug_printf("Interact n*%lu", i++);
+    }
+
+    return EXIT_SUCCESS;
+}
+
+static inline int player_system_process_interaction(player_system_data_t *system_data)
+{
+    if(game.events.keys[KEY_INTERACT])
+    {
+        if(linked_list_for_each(&game.entity_manager.entities, action_detect_activate_interact, system_data)) return EXIT_FAILURE;
+    }
 
     return EXIT_SUCCESS;
 }