Corrected some bugs and warnings

src/core.c

@@ -718,7 +718,7 @@ Ray GetMouseRay(Vector2 mousePosition, Camera camera)
 
     float realy = (float)GetScreenHeight() - mousePosition.y;
 
-    float z;
+    //float z;
     // glReadPixels(mousePosition.x, mousePosition.y, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &z);
     //http://www.bfilipek.com/2012/06/select-mouse-opengl.html
 
@@ -955,7 +955,7 @@ bool IsCursorHidden()
 
 // TODO: Enable gamepad usage on Rapsberry Pi
 // NOTE: emscripten not implemented
-#if defined(PLATFORM_DESKTOP)
+#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
 // Detect if a gamepad is available
 bool IsGamepadAvailable(int gamepad)
 {

src/gestures.c

@@ -30,7 +30,8 @@
 #include <stdlib.h>             // malloc(), free()
 #include <stdio.h>              // printf(), fprintf()
 #include <math.h>               // Used for ...
-#include <time.h>
+#include <time.h>               // Used for clock functions
+#include <stdint.h>             // Defines int32_t, int64_t
 
 #if defined(PLATFORM_ANDROID)
     #include <jni.h>                        // Java native interface
@@ -40,7 +41,7 @@
 
 #if defined(PLATFORM_WEB)
     #include <emscripten/emscripten.h>
-    #include <emscripten/emscripten/html5.h>
+    #include <emscripten/html5.h>
 #endif
 
 //----------------------------------------------------------------------------------
@@ -78,7 +79,7 @@ typedef struct {
 static GestureType gestureType = TYPE_MOTIONLESS;
 
 // Gestures detection variables
-static int32_t touchId;
+//static int32_t touchId;         // Not used...
 
 // Event
 static int64_t eventTime = 0;
@@ -616,13 +617,12 @@ static EM_BOOL EmscriptenInputCallback(int eventType, const EmscriptenTouchEvent
     else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) gestureEvent.action = MOVE;
     
     // Points
-    gestureEvent.pointCount = event->numTouches;
+    gestureEvent.pointCount = touchEvent->numTouches;
     
     // Position
     gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].canvasX, touchEvent->touches[0].canvasY };
     gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].canvasX, touchEvent->touches[1].canvasY };
     
-    
     ProcessMotionEvent(gestureEvent);
 
     return 1;

src/raylib.h

@@ -437,7 +437,7 @@ void HideCursor(void);                                   // Hides cursor
 bool IsCursorHidden(void);                               // Returns true if cursor is not visible
 #endif
 
-#if defined(PLATFORM_DESKTOP)
+#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
 bool IsGamepadAvailable(int gamepad);                   // Detect if a gamepad is available
 Vector2 GetGamepadMovement(int gamepad);                // Return axis movement vector for a gamepad
 bool IsGamepadButtonPressed(int gamepad, int button);   // Detect if a gamepad button has been pressed once

src/raymath.c

@@ -920,13 +920,13 @@ Quaternion QuaternionSlerp(Quaternion q1, Quaternion q2, float amount)
 
     float cosHalfTheta =  q1.x*q2.x + q1.y*q2.y + q1.z*q2.z + q1.w*q2.w;
 
-    if (abs(cosHalfTheta) >= 1.0f) result = q1;
+    if (fabs(cosHalfTheta) >= 1.0f) result = q1;
     else
     {
         float halfTheta = acos(cosHalfTheta);
         float sinHalfTheta = sqrt(1.0f - cosHalfTheta*cosHalfTheta);
 
-        if (abs(sinHalfTheta) < 0.001f)
+        if (fabs(sinHalfTheta) < 0.001f)
         {
             result.x = (q1.x*0.5f + q2.x*0.5f);
             result.y = (q1.y*0.5f + q2.y*0.5f);
@@ -1072,7 +1072,7 @@ Matrix QuaternionToMatrix(Quaternion q)
 // Returns the axis and the angle for a given quaternion
 void QuaternionToAxisAngle(Quaternion q, Vector3 *outAxis, float *outAngle)
 {
-    if (abs(q.w) > 1.0f) QuaternionNormalize(&q);
+    if (fabs(q.w) > 1.0f) QuaternionNormalize(&q);
 
     Vector3 resAxis = { 0, 0, 0 };
     float resAngle = 0;

src/rlgl.c

@@ -1411,12 +1411,14 @@ Vector3 rlglUnproject(Vector3 source, Matrix proj, Matrix view)
     //glGetIntegerv(GL_VIEWPORT, viewport);
 
     // Viewport data
+/*
     int x = 0;
     int y = 0;
     int width = GetScreenWidth();
     int height = GetScreenHeight();
     float minDepth = 0.0f;
     float maxDepth = 1.0f;
+*/
 /*
     Matrix modelviewprojection = MatrixMultiply(modelview, projection);
     MatrixInvert(&modelviewprojection);

src/shapes.c

@@ -395,8 +395,8 @@ bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec)
 {
     bool collision = false;
 
-    float dx = abs((rec.x + rec.width/2) - center.x);
-    float dy = abs((rec.y + rec.height/2) - center.y);
+    float dx = fabs((rec.x + rec.width/2) - center.x);
+    float dy = fabs((rec.y + rec.height/2) - center.y);
 
     if ((dx <= (rec.width/2 + radius)) && (dy <= (rec.height/2 + radius))) collision = true;