initial commit. now I can start playing with stuff!

1 files changed, 80 insertions, 0 deletions

diff --git a/MapTool/t3d/objreader.cpp b/MapTool/t3d/objreader.cpp
new file mode 100644
index 0000000..3a07323
--- /dev/null
+++ b/MapTool/t3d/objreader.cpp
@@ -0,0 +1,80 @@
+#include "objreader.h"
+
+T3DObjReader::T3DObjReader(T3DModel &model) {
+	m_model = model;
+}
+
+T3DObjReader::parseLine(QString line) {
+	line = line.trimmed();
+	if (line.isEmpty() || line.at(0) == '#')
+		return;
+
+	QStringList params = line.split(' ', QString::SkipEmptyParts);
+	QString cmd = params[0];
+
+	if (cmd == "v") {
+		float x, y, z;
+		x = params[1].toFloat();
+		y = params[2].toFloat();
+		z = params[3].toFloat();
+		known_vertices.append(Vec(x, y, z));
+	}
+
+	if (cmd == "vt") {
+		float x, y;
+		x = params[1].toFloat();
+		y = params[2].toFloat();
+		known_texcoords.append(Vec2(x, y));
+	}
+
+	if (cmd == "vn") {
+		float x, y, z;
+		x = params[1].toFloat();
+		y = params[2].toFloat();
+		z = params[3].toFloat();
+		known_normals.append(Vec(x, y, z));
+	}
+
+	if (cmd == "f") {
+		int vtxCount = params.count() - 1;
+		if (vtxCount < 3 || vtxCount > 4)
+			return;
+
+		int vtxID[4], tcID[4], nrmID[4];
+
+		for (int i = 0; i < vtxCount; i++) {
+			QString face = params[i+1];
+			QStringList ids = face.split('/');
+			vtxID[i] = ids[0].isEmpty() ? 0 : ids[0].toInt();
+			tcID[i] = ids[1].isEmpty() ? 0 : ids[1].toInt();
+			nrmID[i] = ids[2].isEmpty() ? 0 : ids[2].toInt();
+		}
+
+		if (vtxCount == 3) {
+			Triangle tri;
+			for (int i = 0; i < 3; i++) {
+				tri.vertex[i] = known_vertices[vtxID[i]];
+				tri.texcoord[i] = known_texcoords[tcID[i]];
+				tri.normal[i] = known_normals[nrmID[i]];
+			}
+			m_currentMesh->triangles.append(tri);
+		}
+
+		if (vtxCount == 4) {
+			Quad q;
+			for (int i = 0; i < 4; i++) {
+				q.vertex[i] = known_vertices[vtxID[i]];
+				q.texcoord[i] = known_texcoords[tcID[i]];
+				q.normal[i] = known_normals[nrmID[i]];
+			}
+			m_currentMesh->quads.append(q);
+		}
+	}
+
+	if (cmd == "usemtl") {
+		// treat this as "new shape"
+		m_currentMesh = new T3DMesh();
+		m_model->meshes.append(m_currentMesh);
+		m_currentMesh->material = materials[params[1]];
+	}
+}