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@@ -60,6 +60,7 @@ struct Holloknight: public Container
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dynamicBody->CreateFixture(&boxFixtureDef);
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}
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+ //remove
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void updateMetrics(b2World &world)
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{
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auto pos = dynamicBody->GetPosition();
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@@ -78,7 +79,9 @@ struct Holloknight: public Container
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Block floor;
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Block blocks[10];
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+ b2Body *currentBodySelected = 0;
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+ glm::vec2 draggedStart = {};
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bool create(RequestedContainerInfo &requestedInfo, pika::StaticString<256> commandLineArgument)
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{
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@@ -105,8 +108,15 @@ struct Holloknight: public Container
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bool update(pika::Input input, pika::WindowState windowState,
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RequestedContainerInfo &requestedInfo)
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{
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+ #pragma region clear stuff
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glClear(GL_COLOR_BUFFER_BIT);
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renderer.updateWindowMetrics(windowState.windowW, windowState.windowH);
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+ #pragma endregion
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+
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+ #pragma region input
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+ ::pika::gl2d::cameraController(renderer.currentCamera, input, 200);
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+ #pragma endregion
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+
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int32 velocityIterations = 6;
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int32 positionIterations = 2;
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world.Step(input.deltaTime, velocityIterations, positionIterations);
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@@ -118,7 +128,6 @@ struct Holloknight: public Container
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blocks[i].updateMetrics(world);
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}
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-
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floor.render(renderer, Colors_White);
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for (int i = 0; i < 10; i++)
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@@ -126,6 +135,105 @@ struct Holloknight: public Container
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blocks[i].render(renderer, Colors_Orange);
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}
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+ glm::vec2 mouseWorldpos(input.mouseX, input.mouseY);
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+ {
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+ auto viewRect = renderer.getViewRect();
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+
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+ glm::vec2 mousePosNormalized = mouseWorldpos / glm::vec2(windowState.frameBufferW, windowState.frameBufferH);
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+
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+ mouseWorldpos = glm::vec2(viewRect) + mousePosNormalized * glm::vec2(viewRect.z, viewRect.w);
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+ }
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+
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+ #pragma region body render
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+
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+ for (b2Body *b = world.GetBodyList(); b; b = b->GetNext())
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+ {
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+
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+ glm::vec4 color = Colors_Red;
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+ float thickness = 1;
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+
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+ if (currentBodySelected == b)
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+ {
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+ color = Colors_Blue;
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+ thickness = 2;
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+ }
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+
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+ auto centerOfMass = b->GetWorldCenter();
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+ auto angleDegrees = glm::degrees(b->GetAngle());
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+ auto shapePos = b->GetTransform();
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+
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+ renderer.renderRectangle({centerOfMass.x - thickness,centerOfMass.y - thickness,2* thickness,2* thickness},
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+ color, {}, angleDegrees);
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+
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+ for (b2Fixture *f = b->GetFixtureList(); f; f = f->GetNext())
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+ {
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+ auto shape = f->GetShape();
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+
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+ if (shape->TestPoint(shapePos, {mouseWorldpos.x,mouseWorldpos.y}) && input.lMouse.held())
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+ {
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+ currentBodySelected = b;
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+ }
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+
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+ //the shape doesn't know anything about position so we have to move it from 0 0
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+ if (shape->GetType() == b2Shape::Type::e_polygon)
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+ {
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+ b2PolygonShape *poligon = dynamic_cast<b2PolygonShape*>(shape);
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+
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+ if (poligon)
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+ {
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+ for (int i = 0; i < poligon->m_count; i++)
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+ {
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+ int j = (i + 1) % poligon->m_count;
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+
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+ glm::vec2 p1 = {poligon->m_vertices[i].x,poligon->m_vertices[i].y};
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+ glm::vec2 p2 = {poligon->m_vertices[j].x,poligon->m_vertices[j].y};
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+
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+ p1 += glm::vec2{centerOfMass.x, centerOfMass.y};
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+ p2 += glm::vec2{centerOfMass.x, centerOfMass.y};
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+
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+ p1 = gl2d::rotateAroundPoint(p1, {centerOfMass.x,-centerOfMass.y}, angleDegrees);
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+ p2 = gl2d::rotateAroundPoint(p2, {centerOfMass.x,-centerOfMass.y}, angleDegrees);
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+
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+ renderer.renderLine(p1, p2, color, thickness*2);
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+ }
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+
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+ }
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+
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+ }
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+
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+ }
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+
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+
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+ }
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+
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+ #pragma endregion
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+
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+ #pragma region drag
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+
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+ {
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+
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+ if (input.rMouse.pressed())
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+ {
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+ draggedStart = glm::vec2(input.mouseX, input.mouseY);
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+ }
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+
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+ if (input.rMouse.released())
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+ {
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+ glm::vec2 dragEnd(input.mouseX, input.mouseY);
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+
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+ glm::vec2 movement = dragEnd - draggedStart;
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+
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+ if (currentBodySelected)
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+ {
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+ currentBodySelected->SetLinearVelocity({movement.x,movement.y});
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+ }
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+ }
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+
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+ }
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+
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+
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+ #pragma endregion
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+
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renderer.flush();
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meemknight