Add ability to place and select things in the map editor

KP3Dii/src/KP3D_Map.cpp

@@ -561,15 +561,11 @@ void Map::Init()
 	sectors.clear();
 	m_mesh.Reset();
 	sectors.reserve(10000);
+	things.reserve(100000);
 
 	BuildSkybox(res::texture_cache["skyboxes/skybox_14.jpg"].get());
 	BuildGrid();
 
-	//static Texture tex, tex2, tex3, tex4;
-	//tex.Load("GRASS2.png", true);
-	//tex2.Load("floor0.png", true);
-	//tex3.Load("FLAT5_7.png", true);
-	//tex4.Load("block.png", true);
 	m_dot.Load("dot.png");
 
 	static Material* tex;
@@ -582,8 +578,6 @@ void Map::Init()
 	tex3 = res::material_cache["FLAT5_7.png"].get();
 	tex4 = res::material_cache["block.png"].get();
 
-
-
 	// Build a stupid little test map
 	// ------------------------------
 	// Main sector
@@ -793,7 +787,9 @@ void Map::Rebuild(NormalGenType gen_normals)
 
 void Map::Update()
 {
-	// ...
+	// Things
+	for (Thing& thing: things)
+		thing.Update();
 }
 
 void Map::Render()
@@ -807,6 +803,10 @@ void Map::Render()
 	kp3d::Renderer3D::DrawMesh(m_mesh, m_transform, true, ShouldHighlight);
 	kp3d::Renderer3D::PopShader();
 
+	// Things
+	for (Thing& thing: things)
+		thing.Render();
+
 	// Debug dots
 	for (Vec3 v: m_dots)
 		kp3d::Renderer3D::DrawBillboard(m_dot, {v.x, v.y, -v.z}, {0.1f, 0.1f}, true);

KP3Dii/src/KP3D_Map.h

@@ -8,6 +8,7 @@
 #include "KP3D_Transform.h"
 #include "KP3D_Shader.h"
 #include "KP3D_Material.h"
+#include "KP3D_Thing.h"
 
 namespace kp3d {
 
@@ -173,6 +174,7 @@ public:
 public:
 	bool join_disabled = false;
 	std::vector<std::shared_ptr<Sector>> sectors;
+	std::vector<Thing> things;
 	bool render_wireframe = false;
 	float texture_scale = 128.0f;
 	Vec3 grid_box[6];

KP3Dii/src/KP3D_Renderer3D.cpp

@@ -308,7 +308,7 @@ void Renderer3D::DrawBillboard(const Texture& texture, const Vec3& position, Vec
 }
 
 void Renderer3D::DrawBillboardSprites(
-	const Texture** textures,
+	const Texture* textures[8],
 	float degrees,
 	const Vec3& position,
 	Vec2 size,

KP3Dii/src/KP3D_Renderer3D.h

@@ -25,7 +25,7 @@ public:
 	static void DrawMesh(StaticMesh& mesh, Transform& m, bool bind_shader = true, uint (*func_highlight)(const RenderBatch3D&) = nullptr);
 	static void DrawBillboard(const Texture& texture, const Vec3& position, Vec2 size, bool both_axes = false, float yaw = 90.0f);
 	static void DrawBillboardSprites(
-		const Texture** textures,
+		const Texture* textures[8],
 		float degrees,
 		const Vec3& position,
 		Vec2 size,

KP3Dii/src/KP3D_Thing.cpp

@@ -3,6 +3,7 @@
 #include <memory>
 
 #include "KP3D_Renderer3D.h"
+#include "KP3D_Renderer2D.h"
 
 namespace {
 
@@ -20,10 +21,13 @@ void LoadDefaultSprite()
 
 namespace kp3d {
 
-Thing::Thing():
+Thing::Thing(Vec3 position):
 	display{Display::NONE}
 {
 	LoadDefaultSprite();
+
+	transform.translation = position;
+	transform.scale = {0.5f, 0.5f, 0.5f};
 }
 
 Thing::~Thing()
@@ -39,15 +43,94 @@ void Thing::Render()
 	switch (display.type)
 	{
 	case Display::NONE:
+		// Debug:
 		Renderer3D::DrawBillboard(*default_sprite.get(), transform.translation, {1.0f, 1.0f});
 		break;
 	case Display::MESH:
 		Renderer3D::DrawModel(*display.data.mesh.model, transform);
 		break;
 	case Display::SPRITES:
-		Renderer3D::DrawBillboardSprites(display.data.sprites.textures, transform.rotation.y, transform.translation, {1.0f, 1.0f});
+		Renderer3D::DrawBillboardSprites(display.data.sprites.textures[display.data.sprites.current_sprite], transform.rotation.y, transform.translation, {1.0f, 1.0f});
 		break;
 	}
 }
 
+// For debugging, use by the map editor, etc.
+void Thing::RenderBox(Vec3 color)
+{
+	static StaticMesh box_mesh;
+	if (box_mesh.GetBatchesRef().empty())
+	{
+		std::vector<Vertex3D> box_vertex_data = GetBox();
+		box_mesh.AddBatch(&Renderer2D::GetDefaultTexture(), box_vertex_data);
+		box_mesh.Finalize();
+	}
+
+	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+	Renderer3D::PushShader(Renderer3D::GetWireframeShader());
+	Renderer3D::GetShader().Bind();
+	Renderer3D::GetShader().SetUniform("u_wireframe_color", color);
+	Renderer3D::GetShader().SetUniform("u_wireframe_alpha", 1.0f);
+	Renderer3D::DrawMesh(box_mesh, transform);
+	Renderer3D::PopShader();
+	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+}
+
+std::vector<Vertex3D> Thing::GetBox(bool apply_transform)
+{
+	std::vector<Vertex3D> box_vertex_data;
+	box_vertex_data = {
+		Vertex3D(Vec3(-1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f, -1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3(-1.0f,  1.0f,  1.0f), Vec2(0.0f, 0.0f)),
+		Vertex3D(Vec3( 1.0f, -1.0f,  1.0f), Vec2(0.0f, 0.0f))
+	};
+
+	if (apply_transform)
+	{
+		for (Vertex3D& v: box_vertex_data)
+		{
+			Mat4 scale = Mat4().InitScale(transform.scale);
+			Mat4 rot = Mat4().InitRotation(transform.rotation);
+			Mat4 trans = Mat4().InitTranslation(v.position * 0.5f + transform.translation);
+			Mat4 mat = trans * rot * scale;
+			v.position = {mat.mat[12], mat.mat[13], mat.mat[14]};
+		}
+	}
+
+	return box_vertex_data;
+}
+
 } // namespace kp3d

KP3Dii/src/KP3D_Thing.h

@@ -14,6 +14,7 @@
 namespace kp3d {
 
 inline static constexpr size_t NUM_SPRITES_PER_DISPLAY = 8;
+inline static constexpr size_t NUM_SPRITES = 4;
 
 struct Display
 {
@@ -25,17 +26,6 @@ struct Display
 		OTHER
 	} type;
 
-	enum Flags: byte
-	{
-		NO_FLAGS,
-		FLAG_FACE_CAMERA = 1 << 0,
-		FLAG_GROUNDED = 1 << 1,
-		FLAG_VISIBLE = 1 << 2,
-		FLAG_DELETE = 1 << 3,
-		FLAG_COLLISIONS = 1 << 4,
-		FLAG_RELATIVE_HR = 1 << 5
-	};
-
 	union Data
 	{
 		struct Mesh
@@ -48,7 +38,9 @@ struct Display
 
 		struct Sprites
 		{
-			Texture* textures[NUM_SPRITES_PER_DISPLAY];
+			const Texture* textures[NUM_SPRITES][NUM_SPRITES_PER_DISPLAY];
+			size_t num_sprites;
+			size_t current_sprite;
 		} sprites;
 	} data;
 };
@@ -56,16 +48,29 @@ struct Display
 class Thing
 {
 public:
-	Thing();
+	Thing(Vec3 position = {});
 	virtual ~Thing();
 	
 	void Update();
 	void Render();
+	void RenderBox(Vec3 color = {0.33f, 0.33f, 1.0f});
+	std::vector<Vertex3D> GetBox(bool apply_transform = false);
 
 public:
 	Display display;
 	Transform transform;
 
+	enum Flags: byte
+	{
+		NO_FLAGS,
+		FLAG_FACE_CAMERA = 1 << 0,
+		FLAG_GROUNDED = 1 << 1,
+		FLAG_VISIBLE = 1 << 2,
+		FLAG_DELETE = 1 << 3,
+		FLAG_COLLISIONS = 1 << 4,
+		FLAG_RELATIVE_HR = 1 << 5
+	} flags;
+
 };
 
 } // namespace kp3d

Sandbox/src/Editor.cpp

@@ -240,6 +240,7 @@ void Editor::Update()
 
 	KEY_SHORTCUT(SPACE, m_mode = MODE_NORMAL);
 	KEY_SHORTCUT(V, m_mode = MODE_BUILD);
+	KEY_SHORTCUT(T, m_mode = MODE_THINGS);
 	KEY_SHORTCUT(Z, {
 		if (sandbox->IsKeyDown(kp3d::KEY_LCTRL))
 			Undo();
@@ -256,6 +257,7 @@ void Editor::Update()
 	{
 	case MODE_BUILD: UpdateModeBuild(); break;
 	case MODE_NORMAL: UpdateModeNormal(); break;
+	case MODE_THINGS: UpdateModeThings(); break;
 	}
 }
 
@@ -268,6 +270,7 @@ void Editor::RenderMap()
 	{
 	case MODE_BUILD: RenderModeBuild(); break;
 	case MODE_NORMAL: RenderModeNormal(); break;
+	case MODE_THINGS: RenderModeThings(); break;
 	}
 }
 
@@ -510,7 +513,7 @@ void Editor::UpdateModeNormal()
 	}
 	if (!targets.empty())
 	{
-		std::sort(targets.begin(), targets.end(), [&](const Target& a, const Target& b) { return a.distance > b.distance; });
+		std::sort(targets.begin(), targets.end(), [](const Target& a, const Target& b) { return a.distance > b.distance; });
 		const Target& target = targets.back();
 		ray_pos = target.position;
 	}
@@ -858,6 +861,108 @@ void Editor::RenderModeNormal()
 	}
 }
 
+void Editor::UpdateModeThings()
+{
+	using namespace kp3d;
+
+	struct Target
+	{
+		Vec3 position;
+		float distance;
+		union Data { RenderBatch3D* b; Thing* t; } object;
+		enum { BATCH, THING } object_type;
+	};
+	std::vector<Target> targets;
+	for (Thing& thing: sandbox->map.things)
+	{
+		std::vector<Vertex3D> vertex_data = thing.GetBox(true);
+		for (size_t i = 0; i < vertex_data.size(); i += 3)
+		{
+			Vec3 pos;
+			Triangle tri = {vertex_data[i].position, vertex_data[i + 1].position, vertex_data[i + 2].position};
+			auto ray = GetRayFromCamera(sandbox->camera);
+			bool raycast = RayIntersectsTriangle(ray[0], ray[1], &tri, pos);
+			if (raycast)
+			{
+				Target target;
+				target.position = pos;
+				target.distance = sqrtf(
+					pow(pos.x - sandbox->camera.position.x, 2) +
+					pow(pos.y - sandbox->camera.position.y, 2) +
+					pow(pos.z - sandbox->camera.position.z, 2)
+				);
+				target.object.b = nullptr;
+				target.object.t = &thing;
+				target.object_type = Target::THING;
+				targets.push_back(target);
+			}
+		}
+	}
+	for (RenderBatch3D& b: sandbox->map.GetMeshRef().GetBatchesRef())
+	{
+		for (size_t i = 0; i < b.vertex_data.size(); i += 3)
+		{
+			Vec3 pos;
+			Triangle tri = {b.vertex_data[i].position, b.vertex_data[i + 1].position, b.vertex_data[i + 2].position};
+			auto ray = GetRayFromCamera(sandbox->camera);
+			bool raycast = RayIntersectsTriangle(ray[0], ray[1], &tri, pos);
+			if (raycast)
+			{
+				Target target;
+				target.position = pos;
+				target.distance = sqrtf(
+					pow(pos.x - sandbox->camera.position.x, 2) +
+					pow(pos.y - sandbox->camera.position.y, 2) +
+					pow(pos.z - sandbox->camera.position.z, 2)
+				);
+				target.object.b = &b;
+				target.object.t = nullptr;
+				target.object_type = Target::BATCH;
+				targets.push_back(target);
+			}
+		}
+	}
+	if (!targets.empty())
+	{
+		std::sort(targets.begin(), targets.end(), [](const Target& a, const Target& b) { return a.distance > b.distance; });
+		const Target& target = targets.back();
+		if (target.object_type == Target::BATCH)
+		{
+			ray_pos = target.position;
+			if (sandbox->IsMouseButtonDown(MOUSE_BUTTON_LEFT))
+			{
+				KP3D_LOG_INFO("Placed thing at {}", ray_pos);
+				PushAction();
+				sandbox->map.things.push_back(Thing(ray_pos));
+				sandbox->MouseButtonReset(MOUSE_BUTTON_LEFT);
+			}
+			m_hovered_thing = nullptr;
+		}
+		else
+		{
+			m_hovered_thing = target.object.t;
+			if (sandbox->IsMouseButtonDown(MOUSE_BUTTON_LEFT))
+			{
+				m_selected_thing = m_hovered_thing;
+				sandbox->MouseButtonReset(MOUSE_BUTTON_LEFT);
+			}
+		}
+	}
+	else
+	{
+		m_hovered_thing = nullptr;
+	}
+}
+
+void Editor::RenderModeThings()
+{
+	for (kp3d::Thing& thing: sandbox->map.things)
+		thing.RenderBox(
+			 &thing == m_selected_thing ? kp3d::Vec3{0.33f, 0.33f, 1.0f} :
+			(&thing == m_hovered_thing  ? kp3d::Vec3{1.0f, 1.0f, 1.0f} : kp3d::Vec3{0.5f, 0.5f, 0.5f})
+		);
+}
+
 void Editor::RenderUI()
 {
 	// Menu bar
@@ -881,8 +986,9 @@ void Editor::RenderUI()
 	}
 	if (ImGui::BeginMenu("Mode"))
 	{
-		if (ImGui::MenuItem("Normal Mode", "Space")) m_mode = MODE_NORMAL;
+		if (ImGui::MenuItem("Normal Mode", "Space", m_mode == MODE_NORMAL)) m_mode = MODE_NORMAL;
-		if (ImGui::MenuItem("Build Mode", "V")) m_mode = MODE_BUILD;
+		if (ImGui::MenuItem("Build Mode", "V", m_mode == MODE_BUILD)) m_mode = MODE_BUILD;
+		if (ImGui::MenuItem("Things Mode", "T", m_mode == MODE_THINGS)) m_mode = MODE_THINGS;
 		ImGui::EndMenu();
 	}
 	if (ImGui::BeginMenu("View"))
@@ -1006,6 +1112,7 @@ void Editor::RenderUIInfo()
 		{
 		case MODE_NORMAL: mode_str = "Normal"; break;
 		case MODE_BUILD: mode_str = "Build"; break;
+		case MODE_THINGS: mode_str = "Things"; break;
 		}
 		ImGui::Text("Mode: %s\n", mode_str.c_str());
 		if (m_mode == MODE_BUILD)
@@ -1022,8 +1129,11 @@ void Editor::RenderUIInfo()
 				ImGui::EndPopup();
 			}
 		}
+		if (m_build_time > 0)
+		{
 			ImGui::Separator();
 			ImGui::Text("Map built in %fms\n", m_build_time);
+		}
 		ImGui::End();
 	}
 }

Sandbox/src/Editor.h

@@ -9,11 +9,13 @@
 #include "KP3D_IOEvents.h"
 #include "KP3D_Material.h"
 #include "KP3D_Map.h"
+#include "KP3D_Thing.h"
 
 enum EditMode
 {
 	MODE_NORMAL,
 	MODE_BUILD,
+	MODE_THINGS
 };
 
 enum WallPoint
@@ -45,6 +47,8 @@ public:
 	void RenderModeBuild();
 	void UpdateModeNormal();
 	void RenderModeNormal();
+	void UpdateModeThings();
+	void RenderModeThings();
 
 	void RenderUI();
 	void RenderUIInfo();
@@ -96,6 +100,7 @@ private:
 	char m_tex_filter_buf[512];
 	std::vector<const kp3d::Material**> m_materials_to_update;
 	std::vector<const kp3d::Texture**> m_textures_to_update;
+	kp3d::Thing* m_hovered_thing = nullptr,* m_selected_thing = nullptr;
 
 	WallUpdate wall_update;
 	bool can_wall_update = false;