Polycode demo

gistfile1.cpp

#include <Polycode.h>
#include <Polycode2DPhysics.h>
#include "Polyspace.h"
#include "PolycodeView.h"

#include "stdafx.h"

using namespace Polycode;

POLYCODE_CORE* core;
PhysicsScene2D* PhyScene;
Entity* LastEnt;

bool Update() {
	if ((KeyDown(PolyKEY::KEY_LALT) && KeyDown(PolyKEY::KEY_F4)) || KeyDown(PolyKEY::KEY_ESCAPE))
		core->Shutdown();

	if (KeyDown(PolyKEY::KEY_F1))
		core->captureMouse(true);
	else if (KeyDown(PolyKEY::KEY_F2))
		core->captureMouse(false);

	if (MouseDown(CoreInput::MOUSE_BUTTON1)) {
		Ray MouseRay = PhyScene->projectRayFromCameraAndViewportCoordinate(PhyScene->getDefaultCamera(),
			CoreService->getInput()->getMousePosition());

		if (LastEnt == NULL) {
			Entity* Ent = PhyScene->getEntityAtPosition(MouseRay.origin.x, MouseRay.origin.y);
			if (Ent != NULL) {
				String EntName = Ent->getTagAtIndex(0);
				if (EntName.length() > 0) {
					printf("Grabbed entity %s\n", EntName.c_str());
					LastEnt = Ent;
					Ent->setColor(1, 1, 1, 1);
					PhyScene->getPhysicsByEntity(Ent)->setLinearDamping(2);
				}
			}
		} else {
			PhysicsScene2DEntity* PhysEnt = PhyScene->getPhysicsByEntity(LastEnt);

			Vector2 MousePos = Vector2(MouseRay.origin.x, MouseRay.origin.y);
			Vector2 EntPos = LastEnt->getPosition2D();

			Number Angle = Vector2(0, 0).angle(EntPos - MousePos) + PI;
			Number PullPower = pow(EntPos.distance(MousePos) + 4, 2);

			//printf("Angle: %f Ent(%f, %f) Mouse(%f, %f)\n", Angle * TODEGREES, EntPos.x, EntPos.y, MousePos.x, MousePos.y);
			PhysEnt->applyForce(Vector2(cos(Angle) * PullPower, sin(Angle) * PullPower));
		}
	} else if (LastEnt != NULL) {
		LastEnt->setColor(0.5, 0.5, 0.5, 1);
		PhyScene->getPhysicsByEntity(LastEnt)->setLinearDamping(0);
		LastEnt = NULL;
	}

	return core->updateAndRender();
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
	PolycodeView* View = new PolycodeView(hInstance, nCmdShow, L"Polyspace", false, true);
	core = new Win32Core(View, 800, 600, false, true, 4, 4, 60);
	log("Focusing window", CenterAndFocus(View->hwnd));

	log("Creating physics scene", {
		PhyScene = new PhysicsScene2D(0.1, 60);	
		PhyScene->clearColor = Color(42, 42, 42, 255);
		PhyScene->useClearColor = true;
	});

	ScenePrimitive* Shape;
	log("Creating floor", {
		Shape = new ScenePrimitive(ScenePrimitive::TYPE_VPLANE, 1.0, 0.05);
		Shape->setColor(0.0, 0.0, 0.1, 1.0);
		Shape->setPosition(0, -0.4);
		PhyScene->addPhysicsChild(Shape, PhysicsScene2DEntity::ENTITY_RECT, true);	
	});

	log("Creating physics boxes", {
		for(int i = 0; i < 20; i++) {
			Shape = new ScenePrimitive(ScenePrimitive::TYPE_VPLANE, 0.05, 0.05);
			Shape->setRoll(rand() % 360);
			Shape->setColor(0.5, 0.5, 0.5, 1);
			Shape->setPosition(-0.3 + (RANDOM_NUMBER * 0.6), RANDOM_NUMBER);
			Shape->addTag(String("Entity_") + String(String::IntToString(i)));
			PhyScene->addPhysicsChild(Shape, PhysicsScene2DEntity::ENTITY_RECT, false, 0.9);
		}
	});

	MSG Msg;
	do {
		while (PeekMessage(&Msg, NULL, 0, 0, PM_REMOVE)) {
			TranslateMessage(&Msg);
			DispatchMessage(&Msg);
		}

		core->Render();
	} while (Update());

	log("Shutting down core", core->Shutdown());
	return Msg.wParam;
}