Impl ModelLoader (#150)

* Impl modelloader

1 files changed, 63 insertions, 0 deletions

diff --git a/src/engine/ModelLoader.h b/src/engine/ModelLoader.h
new file mode 100644
index 000000000..e89c7c457
--- /dev/null
+++ b/src/engine/ModelLoader.h
@@ -0,0 +1,63 @@
+#pragma once
+
+#include <libultraship.h>
+#include "engine/courses/Course.h"
+
+extern "C" {
+#include "common_structs.h"
+}
+
+class Course;
+
+/**
+ * 
+ * Lists are deferred until load time so that models that use the same course may all use the same extraction
+ * 
+ * Note ensure that the buffers passed to LoadModelList are big enough for the requested data.
+ * 
+ * This class should only be ran once.
+ * 
+ * 
+ * Usage:
+ * 
+ *     ModelLoader::LoadModelList bowserStatueList = {
+        .course = gBowsersCastle,
+        .gfxBuffer = &gBowserStatueGfx[0],
+        .gfxBufferSize = 162,
+        .gfxStart = (0x2BB8 / 8), // This is 0x2BB8 / sizeof(N64Gfx) not sizeof(Gfx)
+        .vtxBuffer = &gBowserStatueVtx[0],
+        .vtxBufferSize = 717,
+        .vtxStart = 1942,
+    };
+ * 
+ * gModelLoader.Add(bowserStatueList);
+ */
+
+class ModelLoader {
+
+public:
+    struct LoadModelList {
+        Course* course;
+
+        Gfx* gfxBuffer; // buffer for output gfx
+        size_t gfxBufferSize;
+        size_t gfxStart; // The starting point to extract data in NumGfx
+
+        Vtx* vtxBuffer; // buffer for output vtx
+        size_t vtxBufferSize;
+        size_t vtxStart; // The starting point to extract data in NumVtx
+    };
+
+    void Add(LoadModelList list);
+    void Load();
+private:
+    struct CourseMap {
+
+    };
+
+    void Extract(Course* course);
+    void UpdateVtx(LoadModelList list);
+
+    std::vector<LoadModelList> _deferredList;
+    bool _hasRan = false;
+};