From cd67b9d0d64e1fc48baf4159ed4cb7b7bc7bd974 Mon Sep 17 00:00:00 2001
From: madbad <madbad@30fe4595-0a0c-4342-8851-515496e4dcbd>
Date: Sun, 12 Dec 2021 17:51:29 +0000
Subject: [PATCH] OSGHUD: first implementation of tires temps widget

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@7812 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: 82c6bd8480021356ef978ade45e9a94424e2c9e9
Former-commit-id: 20000a55cd0ccf5e87538d0fcbb3e1298bbc7b0c
---
 .../graphic/osggraph/Viewer/OsgHUD.cpp        | 106 ++++++++++++++++++
 1 file changed, 106 insertions(+)

diff --git a/src/modules/graphic/osggraph/Viewer/OsgHUD.cpp b/src/modules/graphic/osggraph/Viewer/OsgHUD.cpp
index 6491e5729..27acaf9af 100644
--- a/src/modules/graphic/osggraph/Viewer/OsgHUD.cpp
+++ b/src/modules/graphic/osggraph/Viewer/OsgHUD.cpp
@@ -661,6 +661,19 @@ void changeImageSize(osg::Geometry *geom,
         geom->setTexCoordArray(0,texcoords);
     }
 }
+
+void changeImageAlpha(osg::Geometry *geom,
+                        float newAlpha/*where 1.0 fully visible and 0.0 completely hidden*/
+)
+{
+	// assign colors
+	osg::Vec4Array* colors = new osg::Vec4Array(1);
+	(*colors)[0].set(1.0f,1.0f,1.0f,newAlpha);
+	geom->setColorArray(colors);
+	geom->setColorBinding(osg::Geometry::BIND_OVERALL);
+
+}
+
 // TODO[END]: move this to utils? /src/modules/graphic/osggraph/Utils
 
 SDHUD::SDHUD()
@@ -1206,11 +1219,104 @@ void SDHUD::Refresh(tSituation *s, const SDFrameInfo* frameInfo,
 
     prevSteerAngle = angle;
     
+// tires
+
+
+	for (int i = 0; i < 4; i++) { //for each tires
+		
+		std::ostringstream tireName;
+		switch(i) {
+			case 0:
+				tireName << "fr-";
+			break;
+			case 1:
+				tireName << "fl-";
+			break;
+			case 2:
+				tireName << "rr-";
+			break;
+			case 3:
+				tireName <<  "rl-";
+			break;
+			default:
+				tireName << "";
+		}
+		
+		for (int h = 0; h < 3; h++) { //for each part of the tire (in-mid-out)
+			float currentTemp = 0;
+			std::string tirePartName = "";
+			switch(h) {
+				case 0:
+					tirePartName = "in";
+					currentTemp = currCar->_tyreT_in(i);
+				break;
+				case 1:
+					tirePartName = "mid";
+					currentTemp = currCar->_tyreT_mid(i);
+				break;
+				case 2:
+					tirePartName = "out";
+					currentTemp = currCar->_tyreT_out(i);
+				break;
+				default:
+					tirePartName = "";
+			}
+			
+			std::ostringstream tireNameCold;
+			std::ostringstream tireNameOptimal;
+			std::ostringstream tireNameHot;
+			
+			tireNameCold << "tire-" << tireName.str().c_str() << tirePartName.c_str() << "-cold";
+			tireNameOptimal << "tire-" << tireName.str().c_str() << tirePartName.c_str() << "-optimal";
+			tireNameHot << "tire-" << tireName.str().c_str() << tirePartName.c_str() << "-hot";
+
+			float optimalAlpha = 0.0f;
+			float hotAlpha = 0.0f;
+
+			float tempOptimal = currCar->_tyreT_opt(i);
+			float tempMaxCold = tempOptimal - ( tempOptimal * 10 / 100 ); //temp at witch we will conside the tire maximun cold
+			float tempMaxHot = tempOptimal + ( tempOptimal * 10 / 100 ); //temp at witch we will conside the tire maximun hot
+
+
+			changeImageAlpha(this->hudImgElements[tireNameCold.str().c_str()], 1.0f);
+			optimalAlpha = (currentTemp-tempMaxCold) / (tempOptimal-tempMaxCold);
+			if (optimalAlpha > 1.0f){
+				optimalAlpha = 1.0f;
+			}
+			if (optimalAlpha < 0.0f){
+				optimalAlpha = 0.0f;
+			}
+			changeImageAlpha(this->hudImgElements[tireNameOptimal.str().c_str()], optimalAlpha);
+			
+			
+			hotAlpha = (tempMaxHot-currentTemp) / (tempMaxHot-tempOptimal);
+			if (hotAlpha > 1.0f){
+				hotAlpha = 1.0f;
+			}
+			if (hotAlpha < 0.0f){
+				hotAlpha = 0.0f;
+			}
+
+			changeImageAlpha(this->hudImgElements[tireNameHot.str().c_str()], 1.0-hotAlpha);
+		}
+		//temps string only do this for middle temps?
+		temp.str("");
+		temp << currCar->_tyreT_mid(i);
+
+		std::ostringstream tireNameText;
+		tireNameText << "tire-" << tireName.str().c_str()  << "temps";
+		hudTextElements[tireNameText.str().c_str()]->setText(temp.str());
+	
+	}
+
+
+
 // debug info
     temp.str("");
     temp << "FPS: " << frameInfo->fAvgFps << " (Inst: " << frameInfo->fInstFps << ")";
     hudTextElements["debug-info"]->setText(temp.str());
 
+
 }
 
 void SDHUD::ToggleHUD()