made camera moving. init multiple boxes.

PracticeDx/Box.cpp

@@ -128,11 +128,19 @@ void Box::Update(float dt) noexcept
 	theta += dtheta * dt;
 	phi += dphi * dt;
 	chi += dchi * dt;*/
-	dx = dt;
-	dy = dt;
-	dz = dt;
+	//dx = dt;
+	//dy = dt;
+	//dz = dt * 10.0f;
 }
 
+void Box::UpdateCamera(float sin, float cos) noexcept
+{
+	using namespace DirectX;
+	upDirection = XMVectorSet(0.0f, 1.0f, 0.0f, 1.0f);
+	focusPosition = XMVectorZero();
+	eyePosition = XMVectorSet(20.0f * sin, 10.0f, -20.0f * cos, 1.0f);
+};
+
 DirectX::XMMATRIX Box::GetTransformXM() const noexcept
 {
 	/*return DirectX::XMMatrixRotationRollPitchYaw(pitch, yaw, roll) *
@@ -140,14 +148,6 @@ DirectX::XMMATRIX Box::GetTransformXM() const noexcept
 		DirectX::XMMatrixRotationRollPitchYaw(theta, phi, chi) *
 		DirectX::XMMatrixTranslation(0.0f, 0.0f, 20.0f);*/
 
-	using namespace DirectX;
-	XMVECTOR upDirection, eyePosition, focusPosition;
-
-	// Setup the vector that points upwards.
-	upDirection = XMVectorSet(0.0f, 1.0f, 0.0f, 1.0f);
-	focusPosition = XMVectorZero();
-	eyePosition = XMVectorSet(5.0f, 5.0f, -5.0f, 1.0f);
-
 	return
 		DirectX::XMMatrixTranslation(dx, dy, dz)
 		* DirectX::XMMatrixLookAtLH(eyePosition, focusPosition, upDirection);

PracticeDx/Box.h

@@ -7,6 +7,7 @@ class Box : public Drawable
 public:
 	Box(Graphics& gfx, float position[][3], float color[][3], Logger& logger);
 	void Update(float dt) noexcept override;
+	void UpdateCamera(float sin, float cos) noexcept;
 	DirectX::XMMATRIX GetTransformXM() const noexcept override;
 private:
 	// positional
@@ -17,4 +18,8 @@ private:
 	float dx = 0.0f;
 	float dy = 0.0f;
 	float dz = 0.0f;
+	// for camera
+	DirectX::XMVECTOR upDirection;
+	DirectX::XMVECTOR eyePosition;
+	DirectX::XMVECTOR focusPosition;
 };
\ No newline at end of file

PracticeDx/WinMain.cpp

@@ -703,36 +703,43 @@ int WINAPI WinMain(HINSTANCE hInstance,
     };
     Triangle tri(gfx, triPos, triCol, logger);
 
-    float boxPos[8][3] =
+    std::vector<std::unique_ptr<Box>> boxes;
+    for (int i = -5; i < 6; i++)
     {
-        // left bottom back
-        { -1.0f, -1.0f, -1.0f },
-        // right bottom back
-        { 1.0f, -1.0f, -1.0f },
-        // left top back
-        { -1.0f, 1.0f, -1.0f },
-        // right top back
-        { 1.0f, 1.0f, -1.0f },
-
-        // left bottom front
-        { -1.0f, -1.0f, 1.0f },
-        // right bottom front
-        { 1.0f, -1.0f, 1.0f },
-        // left top front
-        { -1.0f, 1.0f, 1.0f },
-        // right top front
-        { 1.0f, 1.0f, 1.0f },
-    };
-    float boxCol[6][3] =
-    {
-        { 0.0f, 1.0f, 0.0f }, // Green
-        { 1.0f, 1.0f, 0.0f }, // Yellow
-        { 1.0f, 0.0f, 0.0f }, // Red
-        { 0.0f, 0.0f, 1.0f }, // Blue
-        { 0.0f, 1.0f, 1.0f }, // Cyan
-        { 1.0f, 0.0f, 1.0f }, // Magenta
-    };
-    Box box(gfx, boxPos, boxCol, logger);
+        for (int j = -5; j < 6; j++)
+        {
+            float boxPos[8][3] =
+            {
+                // left bottom back
+                { -1.0f + i, -1.0f, -1.0f + j },
+                // right bottom back
+                { 1.0f + i, -1.0f, -1.0f + j },
+                // left top back
+                { -1.0f + i, 1.0f, -1.0f + j },
+                // right top back
+                { 1.0f + i, 1.0f, -1.0f + j },
+
+                // left bottom front
+                { -1.0f + i, -1.0f, 1.0f + j },
+                // right bottom front
+                { 1.0f + i, -1.0f, 1.0f + j },
+                // left top front
+                { -1.0f + i, 1.0f, 1.0f + j },
+                // right top front
+                { 1.0f + i, 1.0f, 1.0f + j },
+            };
+            float boxCol[6][3] =
+            {
+                { 0.0f, 1.0f, 0.0f }, // Green
+                { 1.0f, 1.0f, 0.0f }, // Yellow
+                { 1.0f, 0.0f, 0.0f }, // Red
+                { 0.0f, 0.0f, 1.0f }, // Blue
+                { 0.0f, 1.0f, 1.0f }, // Cyan
+                { 1.0f, 0.0f, 1.0f }, // Magenta
+            };
+            boxes.push_back(std::make_unique<Box>(gfx, boxPos, boxCol, logger));
+        }
+    }
 
     double seed = 0;
     seed = int(seed) % 10000;
@@ -765,13 +772,20 @@ int WINAPI WinMain(HINSTANCE hInstance,
             gfx.RendorFrame();
 
             seed++;
-            auto dt = sin(seed / 2000);
+            auto dt = sin(seed / 5000);
             logger.PutLog("seed", std::to_string(seed));
             logger.PutLog("dt", std::to_string(dt));
 
-            box.Update(dt);
-            box.ExecuteBind(gfx, logger);
-            box.Draw(gfx, logger);
+            auto sinValue = sin(seed / 5000);
+            auto cosValue = cos(seed / 5000);
+
+            for (auto& box : boxes)
+            {
+                box->Update(dt);
+                box->UpdateCamera(sinValue, cosValue);
+                box->ExecuteBind(gfx, logger);
+                box->Draw(gfx, logger);
+            }
 
             //tri.Update(dt);
             //tri.ExecuteBind(gfx, logger);