mouse support, solved some funcs clash on linux, started sprite editor

mini.cpp

@@ -58,6 +58,9 @@ int debug_cursor = 0;
 const Uint8 *keys;
 Uint8 key_just_pressed = 0;
 
+int mouse_x, mouse_y;
+Uint32 mouse_buttons;
+
 void reinit() {
     ds::pen_color = 6;
     ds::cam[0] = ds::cam[1] = 0;
@@ -130,7 +133,9 @@ int main(int argc,char*argv[]){
             }
         }
         keys = SDL_GetKeyboardState(NULL);
-
+        mouse_buttons = SDL_GetMouseState(&mouse_x, &mouse_y);
+        mouse_x /= 4; mouse_y /= 4;
+        
         if (lua_is_playing()) {
             lua_call_update();
         } else {
@@ -595,6 +600,18 @@ bool btnp(uint8_t i) {
     return key_just_pressed == i;
 }
 
+int mouseX() {
+    return mouse_x;
+}
+
+int mouseY() {
+    return mouse_y;
+}
+
+bool mouseButton(uint8_t i) {
+    return mouse_buttons & SDL_BUTTON(i);
+}
+
 float time() {
     return float(SDL_GetTicks())/1000.0f;
 }
@@ -603,10 +620,6 @@ float time() {
     return SDL_fabsf(x);
 }*/
 
-float ceil(float x) {
-    return SDL_ceilf(x);
-}
-
 float flr(float x) {
     return SDL_floorf(x);
 }
@@ -615,6 +628,12 @@ float sgn(float x) {
     return x >= 0 ? 1 : -1; 
 }
 
+#ifndef __LINUX__
+
+float ceil(float x) {
+    return SDL_ceilf(x);
+}
+
 float sin(float x) {
     return SDL_sinf(x);
 }
@@ -631,6 +650,8 @@ float sqrt(float x) {
     return SDL_sqrtf(x);
 }
 
+#endif
+
 float max(float x, float y) {
     return SDL_max(x, y);
 }