Create Functions_-_distance_EuclMan.c

Functions_-_distance_EuclMan.c

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+
+#include "raylib.h"
+#include <math.h>
+
+static float distance(float x1,float y1,float x2,float y2);
+static float edistance(float x1,float y1,float x2,float y2);
+
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib example.");
+ 
+    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        
+        int x1 = GetMouseX();
+        int y1 = GetMouseY();
+        int x2 = 400;
+        int y2 = 200;
+        
+        //----------------------------------------------------------------------------------
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+            
+            DrawLine(x1,y1,x2,y2,RED);
+            
+            DrawText(FormatText("Manhattan distance : %f ",distance(x1,y1,x2,y2)),0,0,20,DARKGRAY);
+            DrawText(FormatText("Euclidean distance : %f ",edistance(x1,y1,x2,y2)),0,20,20,DARKGRAY);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+
+
+}
+
+// Manhattan Distance (less precise)
+float distance(float x1,float y1,float x2,float y2){
+    return (float)abs(x2-x1)+abs(y2-y1);
+}
+
+// Euclidean distance (more precise)
+float edistance(float x1,float y1,float x2,float y2){
+    return sqrt( (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2) );
+}