Add zooming for debug purposes (is fun tho might keep)

Author: HeliumAnt

Source/Managers/FrameMan.cpp

@@ -832,7 +832,7 @@ void FrameMan::Draw() {
 		rlSetBlendMode(RL_BLEND_ALPHA);
 		rlEnableDepthTest();
 
-		m_PlayerScreen->Begin(true);
+		m_PlayerScreen->Begin(true, m_Zoom);
 		backgroundShader.Begin();
 		backgroundShader.Enable();
 		rlSetUniformSampler(backgroundShader.GetUniformLocation("rtePalette"), g_PostProcessMan.GetPaletteTexture());

Source/Managers/FrameMan.h

@@ -251,6 +251,9 @@ namespace RTE {
 		/// @param screenId The screen to set for.
 		void SetHudDisabled(bool value, int screenId = 0) { m_HUDDisabled[screenId] = value; }
 
+		float GetZoom() {return m_Zoom;}
+		void SetZoom(float zoom) {m_Zoom = zoom;}
+
 #pragma region Network Handling
 		/// Returns true if this manager is in multiplayer mode, storing the 8bpp backbuffer for network transmission.
 		/// @return True if in multiplayer mode.
@@ -441,6 +444,7 @@ namespace RTE {
 		std::unique_ptr<BITMAP, BitmapDeleter> m_NetworkBackBufferFinalGUI8[2][c_MaxScreenCount]; //!< Per-player allocated frame buffer to copy Intermediate before sending. Used to draw UI only.
 
 		std::shared_ptr<RenderTarget> m_BackBuffer; //!< Main render backbuffer.
+		float m_Zoom{1.0f};
 
 		Vector m_TargetPos[2][c_MaxScreenCount]; //!< Frame target position for network players.
 

Source/Managers/PostProcessMan.cpp

@@ -363,6 +363,8 @@ void PostProcessMan::PostProcess() {
 	rlEnableColorBlend();
 	rlSetBlendFactorsSeparate(GL_ONE, GL_ONE_MINUS_SRC_COLOR, GL_ONE, GL_ONE_MINUS_SRC_ALPHA, GL_FUNC_ADD, GL_FUNC_ADD);
 	rlSetBlendMode(RL_BLEND_CUSTOM_SEPARATE);
+	m_PostProcessFramebuffer->End();
+	m_PostProcessFramebuffer->Begin(false, g_FrameMan.GetZoom());
 
 	m_PostProcessShader->Begin();
 

Source/Managers/UInputMan.cpp

@@ -914,6 +914,12 @@ void UInputMan::HandleSpecialInput() {
 			if (KeyPressed(SDLK_p)) {
 				g_PerformanceMan.ShowAdvancedPerformanceStats(!g_PerformanceMan.AdvancedPerformanceStatsEnabled());
 			}
+		} else if (KeyPressed(SDLK_PLUS)) {
+			g_FrameMan.SetZoom(g_FrameMan.GetZoom() + 0.1f);
+		} else if (KeyPressed(SDLK_MINUS)) {
+			g_FrameMan.SetZoom(g_FrameMan.GetZoom() - 0.1f);
+		} else if (KeyPressed(SDLK_EQUALS)) {
+			g_FrameMan.SetZoom(1.0f);
 		}
 	} else {
 		if (KeyPressed(SDLK_F1)) {