CMakeLists.txt

@@ -27,6 +27,22 @@ else ()
 			ImGui-SFML::ImGui-SFML)
 endif()
 
+if(TRACE_FRAMES)
+	message("Building with Tracy")
+	add_compile_definitions(TRACE_FRAMES)
+
+	include(FetchContent)
+	FetchContent_Declare(
+			Tracy
+			GIT_REPOSITORY https://github.com/wolfpld/tracy.git
+			GIT_TAG d46ffb4e9f132fc95bdd7d04207d8d669a9d4100
+	)
+	FetchContent_MakeAvailable(Tracy)
+
+	set(LIBS ${LIBS}
+			TracyClient)
+endif()
+
 add_compile_options(-Wall -Wextra)
 
 add_executable(raycasting

FrameTracing.h

@@ -0,0 +1,24 @@
+//
+// Created by trotfunky on 05/02/24.
+//
+
+#ifndef RAYCASTING_FRAMETRACING_H
+#define RAYCASTING_FRAMETRACING_H
+
+/*
+ * Basic wrapper to allow enabling and disabling frame tracing using
+ * Tracy.
+ * https://github.com/wolfpld/tracy
+ */
+#ifdef TRACE_FRAMES
+	#include "tracy/Tracy.hpp"
+	#define FTrace_FrameMark FrameMark
+	#define FTrace_Scope ZoneScoped
+	#define FTrace_NamedScope(name) ZoneScopedN(name)
+#else
+	#define FTrace_FrameMark
+	#define FTrace_Scope
+	#define FTrace_NamedScope(name)
+#endif /* TRACE_FRAMES */
+
+#endif //RAYCASTING_FRAMETRACING_H

World.cpp

@@ -9,6 +9,7 @@
 #include <imgui.h>
 #include <imgui-SFML.h>
 #endif
+#include "FrameTracing.h"
 
 World::World(int w, int h, sf::Color groundColor, sf::Color ceilingColor, std::vector<BlockType> worldMap) :
 	player(0,0,0), w(w), h(h), map(std::move(worldMap)),
@@ -117,6 +118,7 @@ RaycastResult World::castRay(float originX, float originY, float orientation) co
 	 *    built around left-handed axes (x→,y↓), so the rendered world is
 	 *    mirrored. This also explains some weird signs for rotations.
 	 */
+	FTrace_Scope;
 	/* Offsets to get back on the grid from the ray's origin. */
 	float hOffsetX;
 	float hOffsetY;
@@ -177,10 +179,12 @@ RaycastResult World::castRay(float originX, float originY, float orientation) co
 	int i = 0;
 	float hCheckX = originX + hOffsetX;
 	float hCheckY = hOffsetY;
+	BlockType hHitBlock = BlockType::AIR;
 	/* Bounds + sanity check. */
 	while (hCheckX >= 0 && hCheckX <= static_cast<float>(w) &&
 		   hCheckY >= 0 && hCheckY <= static_cast<float>(h) && i < h) {
-		if (getBlock(floorf(hCheckX), floorf(hCheckY) + hRound) == BlockType::WALL) {
+		hHitBlock = getBlock(floorf(hCheckX), floorf(hCheckY) + hRound);
+		if (hHitBlock == BlockType::WALL) {
 			break;
 		}
 
@@ -192,11 +196,12 @@ RaycastResult World::castRay(float originX, float originY, float orientation) co
 	i = 0;
 	float vCheckX = vOffsetX;
 	float vCheckY = originY + vOffsetY;
-
+	BlockType vHitBlock = BlockType::AIR;
 	/* Bounds + sanity check. */
 	while (vCheckX >= 0 && vCheckX < static_cast<float>(w) &&
 		   vCheckY >= 0 && vCheckY < static_cast<float>(h) && i < w) {
-		if (getBlock(floorf(vCheckX) + vRound, floorf(vCheckY)) == BlockType::WALL) {
+		vHitBlock = getBlock(floorf(vCheckX) + vRound, floorf(vCheckY));
+		if (vHitBlock == BlockType::WALL) {
 			break;
 		}
 
@@ -220,13 +225,13 @@ RaycastResult World::castRay(float originX, float originY, float orientation) co
 		result.distance = vDist;
 		result.hitX = vCheckX;
 		result.hitY = vCheckY;
+		result.hitBlock = vHitBlock;
 	} else {
 		result.distance = hDist;
 		result.hitX = hCheckX;
 		result.hitY = hCheckY;
+		result.hitBlock = hHitBlock;
 	}
-	result.hitBlock = getBlock(floorf(result.hitX) + vRound,
-							   floorf(result.hitY));
 
 	return result;
 }
@@ -234,6 +239,7 @@ RaycastResult World::castRay(float originX, float originY, float orientation) co
 void World::fillColumn(sf::RenderWindow& window, unsigned int column,
 					   float scale, sf::Color fillColor)
 {
+	FTrace_Scope;
 	float columnHeight = static_cast<float>(window.getSize().y)*scale;
 	sf::RectangleShape& pixelColumn = renderColumns[column];
 	if (pixelColumn.getSize().y != columnHeight) {
@@ -249,6 +255,7 @@ void World::fillColumn(sf::RenderWindow& window, unsigned int column,
 
 void World::render(sf::RenderWindow& window)
 {
+	FTrace_Scope;
 	float windowX = static_cast<float>(window.getSize().x);
 	float windowY = static_cast<float>(window.getSize().y);
 	/*
@@ -291,6 +298,7 @@ void World::render(sf::RenderWindow& window)
 }
 
 void World::step(const float& stepTime) {
+	FTrace_Scope;
 	player.move(player.currentMoveSpeedX*stepTime,
 				player.currentMoveSpeedY*stepTime);
 	/* Undo last move if the player would end up in a wall. */

main.cpp

@@ -5,6 +5,7 @@
 #include <imgui.h>
 #include <imgui-SFML.h>
 #endif
+#include "FrameTracing.h"
 
 #include "World.h"
 
@@ -37,8 +38,11 @@ int main()
 	sf::Clock frameTime;
 	while (window.isOpen())
 	{
+		FTrace_NamedScope("MainLoop");
+
 		while (window.pollEvent(event))
 		{
+			FTrace_NamedScope("EventLoop");
 			if (event.type == sf::Event::Closed) {
 				window.close();
 				continue;
@@ -135,6 +139,7 @@ int main()
 #endif
 
 		window.display();
+		FTrace_FrameMark;
 	}
 
 #ifdef IMGUI