Start backspace functionality and handle all keys displayed

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

main.cpp

@@ -7,11 +7,23 @@ struct Cursor{
 	int pos=0;
 };
 
+struct PrintKey{
+	char normal;
+	char shift;
+};
+
 class IDE : public olc::PixelGameEngine
 {
 public:
 	std::vector<Cursor>cursors={{0,2}};
 	std::vector<std::string>document={{"Test"}};
+	std::map<Key,PrintKey>PRINTABLE={
+		{K0,{')'}},{K1,{'!'}},{K2,{'@'}},{K3,{'#'}},{K4,{'$'}},{K5,{'%'}},{K6,{'^'}},{K7,{'&'}},{K8,{'*'}},{K9,{'('}},
+		{SPACE,{' ',' '}},
+		{NP_MUL,{'*','*'}},{NP_DIV,{'/','/'}},{NP_ADD,{'+','+'}},{NP_SUB,{'-','-'}},{NP_DECIMAL,{'.','.'}},{PERIOD,{'.','>'}},
+		{EQUALS,{'=','+'}},{COMMA,{',','<'}},{MINUS,{'-','_'}},
+		{OEM_1,{';',':'}},{OEM_2,{'/','?'}},{OEM_3,{'`','~'}},{OEM_4,{'[','{'}},{OEM_5,{' '}},{OEM_6,{']','}'}},{OEM_7,{'\'','"'}},{OEM_8,{'\\','|'}}
+	};
 	float lastBlinkTime=0;
 
 	IDE()
@@ -82,7 +94,7 @@ public:
 		int i=0;
 		for (std::string&line:document){
 			DrawStringDecal({0,float(i)*10},line);
-			if(cursors[0].line==i&&lastBlinkTime>0.5f){DrawStringDecal({float(cursors[0].pos)*8-2,float(i)*10+1},"|",GREY,{0.5,0.8});}
+			if(cursors[0].line==i&&lastBlinkTime>=0.5f){DrawStringDecal({float(cursors[0].pos)*8-2,float(i)*10+1},"|",GREY,{0.5,0.8});}
 			i++;
 		}
 		lastBlinkTime+=fElapsedTime;
@@ -97,8 +109,39 @@ public:
 	}
 
 	void GetAnyKeyPress(olc::Key k)override{
+		lastBlinkTime=0.5f;
+		if (k==BACK){
+			if (cursors[0].pos==0){
+				if (cursors[0].line>0){
+					cursors[0].pos=document[cursors[0].line-1].size();
+					document[cursors[0].line-1].append(document[cursors[0].line]);
+					document[cursors[0].line--].clear();
+				}
+			} else {
+
+			}
+		} else
 		if (k>=A&&k<=Z){
-			document[cursors[0].line].insert(cursors[0].pos,std::string(1,Z-k));
+			if (GetKey(SHIFT).bHeld){
+				document[cursors[0].line].insert(cursors[0].pos++,std::string(1,k-1+'A'));
+			} else {
+				document[cursors[0].line].insert(cursors[0].pos++,std::string(1,k-1+'a'));
+			}
+		} else
+		if (k>=K0&&k<=K9){
+			if (GetKey(SHIFT).bHeld){
+				document[cursors[0].line].insert(cursors[0].pos++,std::string(1,PRINTABLE[k].normal));
+			} else {
+				document[cursors[0].line].insert(cursors[0].pos++,std::string(1,k-K0+'0'));
+			}
+		} else {
+			if (PRINTABLE.find(k)!=PRINTABLE.end()){
+				if (GetKey(SHIFT).bHeld){
+					document[cursors[0].line].insert(cursors[0].pos++,std::string(1,PRINTABLE[k].shift));
+				} else {
+					document[cursors[0].line].insert(cursors[0].pos++,std::string(1,PRINTABLE[k].normal));
+				}
+			}
 		}
 	}
 };