Working on worlds.

It's currently crashing.

source/world.cpp

@@ -5,4 +5,89 @@
  *  Created by Manoël Trapier
  *  Copyright (c) 2020 986-Studio.
  *
- */
+ */
+#include <world.h>
+#include <light.h>
+#include <shape.h>
+
+#define MIN_ALLOC (2)
+
+World::World() : objectCount(0), lightCount(0)
+{
+    this->allocatedLightCount = MIN_ALLOC;
+    this->lightList = (Light **)calloc(sizeof(Light *), MIN_ALLOC);
+    this->lightCount = 0;
+
+    this->allocatedObjectCount = MIN_ALLOC;
+    this->objectList = (Shape **)calloc(sizeof(Shape *), MIN_ALLOC);
+    this->objectCount = 0;
+};
+
+World::~World()
+{
+    /* We need to do some cleanup... */
+}
+
+void World::addObject(Shape *s)
+{
+    if ((this->objectCount + 1) > this->allocatedObjectCount)
+    {
+        this->allocatedObjectCount *= 2;
+        this->objectList = (Shape **)realloc(this->objectList, sizeof(Shape **) * this->allocatedObjectCount);
+    }
+    this->objectList[this->objectCount++] = s;
+}
+
+void World::addLight(Light *l)
+{
+    if ((this->lightCount + 1) > this->allocatedLightCount)
+    {
+        this->allocatedLightCount *= 2;
+        this->lightList = (Light **)realloc(this->lightList, sizeof(Light **) * this->allocatedLightCount);
+    }
+    this->lightList[this->lightCount++] = l;
+}
+
+bool World::lightIsIn(Light &l)
+{
+    int i;
+    for(i = 0; i < this->lightCount; i++)
+    {
+        if (*this->lightList[i] == l)
+        {
+            return true;
+        }
+    }
+    return false;
+}
+
+bool World::objectIsIn(Shape &s)
+{
+    int i;
+    for(i = 0; i < this->objectCount; i++)
+    {
+        if (*this->objectList[i] == s)
+        {
+            return true;
+        }
+    }
+    return false;
+}
+
+Intersect World::intersect(Ray r)
+{
+    Intersect ret;
+    int i, j;
+
+    for(i = 0; i < this->objectCount; i++)
+    {
+        Intersect xs = this->objectList[i]->intersect(r);
+
+        for(j = 0; xs.count(); j++)
+        {
+            ret.add(xs[i]);
+        }
+    }
+
+    return ret;
+}