Plane ray cast sample

planeRayCastSample.cpp

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+#include "root.h"
+#include "assetManager.h"
+#include "quad.h"
+#include "box.h"
+#include "node.h"
+#include "material.h"
+#include "rayCaster.h"
+
+using namespace std;
+using namespace vb01;
+
+int main(){
+	const string PATH = "../", TEX_PATH = PATH + "samples/textures/", MODEL_PATH = PATH + "samples/models/";
+	const int numTextures = 6;
+	string skyboxTextures[numTextures] = {
+		TEX_PATH + "top.jpg",
+		TEX_PATH + "bottom.jpg",
+		TEX_PATH + "left.jpg",
+		TEX_PATH + "right.jpg",
+		TEX_PATH + "front.jpg",
+		TEX_PATH + "back.jpg"
+	};
+
+	for(int i = 0; i < numTextures; i++)
+		AssetManager::getSingleton()->load(skyboxTextures[i]);
+
+	Root *root = Root::getSingleton();
+	root->start(800, 600, PATH, "Plane ray cast sample");
+	root->createSkybox(skyboxTextures);
+
+	Camera *cam = root->getCamera();
+	cam->setFov(70);
+	cam->setFarPlane(500);
+	cam->setPosition(70 * Vector3::VEC_IJK);
+	cam->lookAt(-Vector3::VEC_IJK, Vector3(-1, 1, -1).norm());
+
+	Material *mat = new Material(PATH + "texture");
+	mat->addBoolUniform("lightingEnabled", false);
+	mat->addBoolUniform("texturingEnabled", false);
+	mat->addVec4Uniform("diffuseColor", Vector4(0, 0, 1, 1));
+
+	Vector3 size = Vector3(100, 100, 0);
+	int numVertDivs = 20, numHorDivs = 20;
+	Quad *quad = new Quad(size, true, numVertDivs, numHorDivs);
+	quad->setMaterial(mat);
+
+	Node *plane = new Node();
+	plane->attachMesh(quad);
+
+	Node *rootNode = root->getRootNode();
+	rootNode->attachChild(plane);
+
+	float stepX = (numHorDivs > 0 ? size.x / numHorDivs : size.x);
+	float stepZ = (numVertDivs > 0 ? size.y / numVertDivs : size.y);
+	Vector3 startPos = -.5 * (Vector3(size.x, 0, size.y) - Vector3(stepX, 0, stepZ));
+
+	for(int i = 0; i < numVertDivs; i++){
+		for(int j = 0; j < numHorDivs; j++){
+			Vector3 rayPos = startPos + Vector3(stepX * j, 0, stepZ * i);
+			vector<RayCaster::CollisionResult> results = RayCaster::cast(rayPos + Vector3(0, 100, 0), -Vector3::VEC_J, plane);
+
+			Material *mat = new Material(PATH + "texture");
+			mat->addBoolUniform("lightingEnabled", false);
+			mat->addBoolUniform("texturingEnabled", false);
+			mat->addVec4Uniform("diffuseColor", (results.empty() ? Vector4(1, 0, 0, 1) : Vector4(0, 1, 0, 1)));
+
+			Box *box = new Box(Vector3::VEC_IJK);
+			box->setMaterial(mat);
+
+			Node *node = new Node(rayPos);
+			node->attachMesh(box);
+
+			rootNode->attachChild(node);
+		}
+	}
+
+	while(true){
+		root->update();
+	}
+
+	return 0;
+}