Added function: DrawLineEx()

Supports line thickness

3 files changed, 59 insertions, 8 deletions

diff --git a/examples/core_basic_window.c b/examples/core_basic_window.c
index fb83400a..888f3460 100644
--- a/examples/core_basic_window.c
+++ b/examples/core_basic_window.c
@@ -39,6 +39,11 @@ int main()
         // Update
         //----------------------------------------------------------------------------------
         // TODO: Update your variables here
+        float dx = 600 - 100;
+        float dy = 105 - 405;
+        
+        float d = sqrtf(dx*dx + dy*dy);
+        float angle = asinf(dy/d);
         //----------------------------------------------------------------------------------
 
         // Draw
@@ -47,7 +52,22 @@ int main()
 
             ClearBackground(RAYWHITE);
 
-            DrawText("Congrats! You created your first window!", 190, 200, 20, LIGHTGRAY);
+            //DrawText("Congrats! You created your first window!", 190, 200, 20, LIGHTGRAY);
+            
+            DrawRectangle(100, 400, 1, 10, BLACK);
+            DrawRectangle(96, 404, 10, 1, BLACK);
+
+            DrawRectangle(600, 100, 1, 10, BLACK);
+            DrawRectangle(596, 104, 10, 1, BLACK);
+            
+            DrawLine(100, 405, 600, 105, RED);
+            
+            // Draw lines using textures
+            /*
+            DrawTexturePro(GetDefaultTexture(), (Rectangle){ 0, 0, GetDefaultTexture().width, GetDefaultTexture().height }, 
+                           (Rectangle){ 100, 405, (float)GetDefaultTexture().width*d, 1 },
+                           (Vector2){ 0, (float)GetDefaultTexture().height/2 }, -RAD2DEG*angle, BLUE);
+            */
 
         EndDrawing();
         //----------------------------------------------------------------------------------
diff --git a/src/raylib.h b/src/raylib.h
index beda833c..b0f03bbe 100644
--- a/src/raylib.h
+++ b/src/raylib.h
@@ -98,13 +98,13 @@
 #define RAD2DEG (180.0f/PI)
 
 // raylib Config Flags
-#define FLAG_SHOW_LOGO              1       // Set this flag to show raylib logo at startup
-#define FLAG_FULLSCREEN_MODE        2       // Set this flag to run program in fullscreen
-#define FLAG_WINDOW_RESIZABLE       4       // Set this flag to allow resizable window
-#define FLAG_WINDOW_DECORATED       8       // Set this flag to show window decoration (frame and buttons)
-#define FLAG_WINDOW_TRANSPARENT    16       // Set this flag to allow transparent window
-#define FLAG_MSAA_4X_HINT          32       // Set this flag to try enabling MSAA 4X
-#define FLAG_VSYNC_HINT            64       // Set this flag to try enabling V-Sync on GPU
+#define FLAG_SHOW_LOGO              1       // Set to show raylib logo at startup
+#define FLAG_FULLSCREEN_MODE        2       // Set to run program in fullscreen
+#define FLAG_WINDOW_RESIZABLE       4       // Set to allow resizable window
+#define FLAG_WINDOW_DECORATED       8       // Set to show window decoration (frame and buttons)
+#define FLAG_WINDOW_TRANSPARENT    16       // Set to allow transparent window
+#define FLAG_MSAA_4X_HINT          32       // Set to try enabling MSAA 4X
+#define FLAG_VSYNC_HINT            64       // Set to try enabling V-Sync on GPU
 
 // Keyboard Function Keys
 #define KEY_SPACE            32
@@ -763,6 +763,7 @@ RLAPI void DrawPixel(int posX, int posY, Color color);
 RLAPI void DrawPixelV(Vector2 position, Color color);                                                    // Draw a pixel (Vector version)
 RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color);                // Draw a line
 RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color);                                     // Draw a line (Vector version)
+RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color);                       // Draw a line defining thickness
 RLAPI void DrawCircle(int centerX, int centerY, float radius, Color color);                              // Draw a color-filled circle
 RLAPI void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Color color2);       // Draw a gradient-filled circle
 RLAPI void DrawCircleV(Vector2 center, float radius, Color color);                                       // Draw a color-filled circle (Vector version)
diff --git a/src/shapes.c b/src/shapes.c
index a42b0551..9cbe1da4 100644
--- a/src/shapes.c
+++ b/src/shapes.c
@@ -103,6 +103,36 @@ void DrawLineV(Vector2 startPos, Vector2 endPos, Color color)
     rlEnd();
 }
 
+// Draw a line defining thickness
+void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color)
+{
+    float dx = endPos.x - startPos.x;
+    float dy = endPos.y - startPos.y;
+    
+    float d = sqrtf(dx*dx + dy*dy);
+    float angle = asinf(dy/d);
+    
+    rlEnableTexture(GetDefaultTexture().id);
+
+    rlPushMatrix();
+        rlTranslatef((float)startPos.x, (float)startPos.y, 0);
+        rlRotatef(-RAD2DEG*angle, 0, 0, 1);
+        rlTranslatef(0, -thick/2.0f, 0);
+
+        rlBegin(RL_QUADS);
+            rlColor4ub(color.r, color.g, color.b, color.a);
+            rlNormal3f(0.0f, 0.0f, 1.0f);
+
+            rlVertex2f(0.0f, 0.0f);
+            rlVertex2f(0.0f, thick);
+            rlVertex2f(d, thick);
+            rlVertex2f(d, 0.0f);
+        rlEnd();
+    rlPopMatrix();
+
+    rlDisableTexture();
+}
+
 // Draw a color-filled circle
 void DrawCircle(int centerX, int centerY, float radius, Color color)
 {