From 167c8a3ce3767cfaf34e387d1abf2ae4a5593e15 Mon Sep 17 00:00:00 2001
From: samstalhandske <samstalhandske@hotmail.com>
Date: Tue, 16 Dec 2025 12:43:23 +0100
Subject: [PATCH] Change snake's tint based on player-id.

---
 src/game/presentation/states/state_ingame.c | 27 ++++++++++++++++++++-
 src/game/shared/entity.h                    |  2 +-
 src/game/shared/game_world.c                |  3 ++-
 3 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/src/game/presentation/states/state_ingame.c b/src/game/presentation/states/state_ingame.c
index 7f0f1df..5cf669b 100644
--- a/src/game/presentation/states/state_ingame.c
+++ b/src/game/presentation/states/state_ingame.c
@@ -99,6 +99,17 @@ uint32_t floor_texture_variant(uint32_t x, uint32_t y, uint32_t seed, uint32_t n
     return (wang_hash(x * 73856093u ^ y * 19349663u ^ seed)) % num_variants;
 }
 
+Color get_tint_for_player_id(uint16_t player_id) {
+    switch(player_id) {
+        case 0: {
+            return (Color) { 255, 135, 102, 255 };
+        }
+        default: {
+            return (Color) { 82, 33, 110, 255 };
+        }
+    }
+}
+
 #define SHADOW_ALPHA 64
 
 static void state_render(Presentation_State *state) {
@@ -151,7 +162,21 @@ static void state_render(Presentation_State *state) {
 
                 switch(entity->type) {
                     case Entity_Type_Snake_Head: {
-                        Color tint = (Color) { 255, 135, 102, 255 }; // TODO: SS - Get tint based on player ID.
+
+                        Color tint = (Color) { 255, 255, 255, 255 };
+                        // Set the snake's tint based on player-index.
+                        for(uint16_t i = 0; i < sim_world->max_players; i++) {
+                            Simulation_Player *player = &sim_world->players[i];
+                            if(!player->active) {
+                                continue;
+                            }
+
+                            if(player->entity_id == entity->id) {
+                                tint = get_tint_for_player_id(i); // NOTE: SS - It's more like player-index. This needs to change if they're not sorted (but they are at the moment and I don't really plan on switching that up.)
+                                break;
+                            }
+                        }
+
                         Vector2 origin = (Vector2) { GRID_CELL_SIZE/2, GRID_CELL_SIZE/2 };
 
                         Entity *e = entity;
diff --git a/src/game/shared/entity.h b/src/game/shared/entity.h
index 95014c5..2d505d3 100644
--- a/src/game/shared/entity.h
+++ b/src/game/shared/entity.h
@@ -25,7 +25,7 @@ typedef enum {
 typedef struct {
     bool active;
 
-    // TODO: SS - Maybe add an ID here.
+    Entity_ID id;
 
     Entity_Type type;
     
diff --git a/src/game/shared/game_world.c b/src/game/shared/game_world.c
index 9a93126..12ede47 100644
--- a/src/game/shared/game_world.c
+++ b/src/game/shared/game_world.c
@@ -78,6 +78,7 @@ bool game_world_create_entity(Game_World *world, Entity_Type type, uint16_t x, u
     
     world->entities[id] = (Entity) {
         .active = true,
+        .id = id,
         .type = type,
         .child = INVALID_ENTITY_ID
     };
@@ -98,7 +99,7 @@ void game_world_destroy_entity(Game_World *world, Entity_ID entity_id) {
         entity_id
     );
     assert(entity != NULL);
-    entity->active = false;
+    memset(&entity, 0, sizeof(Entity));
 
     Grid_Cell *cell = grid_get_cell(&world->grid, entity->x, entity->y);
     assert(cell != NULL);