finished coordinate system section

src/Engine/main.cpp

@@ -11,8 +11,8 @@
 #include "textures/Texture2D.h"
 #include "util/stb_image.h"
 
-// Continue: https://learnopengl.com/Getting-started/Coordinate-Systems
+// Continue: https://learnopengl.com/Getting-started/Camera
-// Chapter: More Cubes!
+// Chapter: Not started
 //
 // TODO: look at project->properties->VC++ Directories-> change everything to the Environment var
 // For the "real" Nebulix Engine setup everything so it can be compiled/used with VSCode/CLion and not just VS 
@@ -128,6 +128,18 @@ int main()
 		0, 1, 3,
 		1, 2, 3
 	};
+	vec3 cubePositions[] = {
+		vec3(0.0f,  0.0f,  0.0f),
+		vec3(2.0f,  5.0f, -15.0f),
+		vec3(-1.5f, -2.2f, -2.5f),
+		vec3(-3.8f, -2.0f, -12.3f),
+		vec3(2.4f, -0.4f, -3.5f),
+		vec3(-1.7f,  3.0f, -7.5f),
+		vec3(1.3f, -2.0f, -2.5f),
+		vec3(1.5f,  2.0f, -2.5f),
+		vec3(1.5f,  0.2f, -1.5f),
+		vec3(-1.3f,  1.0f, -1.5f)
+	};
 
 	// VBO == all verticies; EBO == connection of vertices (faces) and is optional although it is a bit more efficient than using VBOs; 
 	// VAO == collection of VBOs/EBOs used for rendering
@@ -171,8 +183,6 @@ int main()
 	Texture2D containerImage("images/container.jpg");
 	Texture2D faceImage("images/awesomeface.png", 0, GL_RGBA);
 
-	mat4 modelMatrix = mat4(1.0f);
-	modelMatrix = glm::rotate(modelMatrix, glm::radians(-55.0f), vec3(1.0f, 0, 0));
 	mat4 viewMatrix = mat4(1.0f);
 	viewMatrix = glm::translate(viewMatrix, vec3(0, 0, -3.0f));
 	mat4 projectionMatrix = glm::perspective(glm::radians(45.0f), 800.0f / 600.0f, 0.1f, 100.0f);
@@ -186,23 +196,33 @@ int main()
 
 		ProcessInput(window);
 
-		float time = glfwGetTime();
-
-		modelMatrix = glm::rotate(modelMatrix, time * (time - timeLastFrame) + 0.001f * glm::radians(50.0f), glm::vec3(0.5f, 1.0f, 0.0f));
-
 		shader->Use();
 		shader->SetInt("ourTexture1", 0);
 		shader->SetInt("ourTexture2", 1);
-		shader->SetMatrix("modelMatrix", modelMatrix);
+		shader->SetMatrix("viewMatrix", viewMatrix); // more or less the camera
-		shader->SetMatrix("viewMatrix", viewMatrix);
 		shader->SetMatrix("projectionMatrix", projectionMatrix);
 
 		containerImage.BindTexture();
-		faceImage.BindTexture(GL_TEXTURE0 + 1); // GL_TEXTURE0 + 1 == GL_TEXTURE1, this means looping over multiple units is easily possible
+		faceImage.BindTexture(GL_TEXTURE0 + 1); // GL_TEXTURE0 + 1 == GL_TEXTURE1, this means looping over multiple texture units is easily possible
 		
 		glBindVertexArray(vertexArrayObject);
-		//glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0); // for EBOs
+
-		glDrawArrays(GL_TRIANGLES, 0, 36); // for VAOs
+		float time = glfwGetTime();
+		for (int i = 0; i < 10; i++) // somehow cubePositions->length() does not return the correct number?
+		{
+			std::cout << i << ": " << i % 3;
+			mat4 model = mat4(1.0f);
+			model = glm::translate(model, cubePositions[i]);
+			float angle = (20.0f * i);
+			if (i % 3 == 0)
+				angle = time * 25;
+			model = glm::rotate(model, glm::radians(angle), glm::vec3(1.0f, 0.3f, 0.5f));
+			shader->SetMatrix("modelMatrix", model);
+
+			//glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0); // for EBOs
+			glDrawArrays(GL_TRIANGLES, 0, 36); // for VAOs
+			std::cout << std::endl;
+		}
 
 		glfwSwapBuffers(window);
 		glfwPollEvents();