- Treballant en la ordenació de actors

2023-03-01 18:57:45 +01:00
parent f54e5ebef5
commit 195fb39210
9 changed files with 194 additions and 7 deletions
--- a/source/actor.cpp
+++ b/source/actor.cpp
@@ -0,0 +1,90 @@
+#include "actor.h"
+#include "jdraw.h"
+
+namespace actor
+{
+    actor_t *first = nullptr;
+    actor_t *dirty = nullptr;
+
+    actor_t *getFirst()
+    {
+        return first;
+    }
+
+    actor_t *create(pos_t p, size_t s, SDL_Rect r, SDL_Point o)
+    {
+        actor_t *act = (actor_t*)malloc(sizeof(actor_t));
+        act->pos = p;
+        act->size = s;
+        act->bmp_rect = r;
+        act->bmp_offset = o;
+        act->prev = act->next = nullptr;
+        return act;
+    }
+
+    void setDirty(actor_t *act)
+    {
+        if (act->prev) act->prev->next = act->next;
+        if (act->next) act->next->prev = act->prev;
+        if (act == first) first = act->next;
+
+        act->next = dirty;
+        dirty = act;
+    }
+
+    void reorder()
+    {
+        while (dirty)
+        {
+            const int z_index = dirty->pos.x + dirty->pos.y + dirty->pos.z;
+            if (first)
+            {
+                actor_t *current = first;
+                while (true)
+                {
+                    const int z_index2 = current->pos.x + current->pos.y + current->pos.z;
+                    if (z_index > z_index2)
+                    {
+                        if (current->next)
+                        {
+                            current = current->next;
+                        }
+                        else
+                        {
+                            current->next = dirty;
+                            dirty = dirty->next;
+                            current->next->prev = current;
+                            current->next->next = nullptr;
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        dirty->prev = current->prev;
+                        current->prev = dirty;
+                        if (dirty->prev) dirty->prev->next = dirty;
+                        dirty = dirty->next;
+                        current->prev->next = current;
+                        break;
+                    }
+                }
+            }
+            else
+            {
+                first = dirty;
+                dirty = dirty->next;
+                first->prev=first->next=nullptr;
+            }
+        }
+    }
+
+    void draw(actor_t *act, const bool draw_all)
+    {
+        if (!act) return;
+        const int x = 148-act->bmp_offset.x + act->pos.x*2 - act->pos.y*2;
+        const int y = 91-act->bmp_offset.y + act->pos.x + act->pos.y;
+        draw::draw(x, y, act->bmp_rect.w, act->bmp_rect.h, act->bmp_rect.x, act->bmp_rect.y);
+        if (draw_all && act->next) draw(act->next);
+    }
+
+}