1 files changed, 115 insertions, 0 deletions
diff --git a/src/engine/client/ui.cpp b/src/engine/client/ui.cpp
new file mode 100644
index 00000000..3353feca
--- /dev/null
+++ b/src/engine/client/ui.cpp
@@ -0,0 +1,115 @@
+#include <engine/interface.h>
+#include "ui.h"
+
+/********************************************************
+ UI                                                      
+*********************************************************/
+//static unsigned mouse_buttons_last = 0;
+
+struct pretty_font
+{
+    char m_CharStartTable[256];
+	char m_CharEndTable[256];
+	int font_texture;
+};
+
+extern pretty_font *current_font;
+void gfx_pretty_text(float x, float y, float size, const char *text);
+
+
+static void *hot_item = 0;
+static void *active_item = 0;
+static void *becomming_hot_item = 0;
+static float mouse_x, mouse_y; // in gui space
+static float mouse_wx, mouse_wy; // in world space
+static unsigned mouse_buttons = 0;
+
+float ui_mouse_x() { return mouse_x; }
+float ui_mouse_y() { return mouse_y; }
+float ui_mouse_world_x() { return mouse_wx; }
+float ui_mouse_world_y() { return mouse_wy; }
+int ui_mouse_button(int index) { return (mouse_buttons>>index)&1; }
+
+void ui_set_hot_item(void *id) { becomming_hot_item = id; }
+void ui_set_active_item(void *id) { active_item = id; }
+void *ui_hot_item() { return hot_item; }
+void *ui_active_item() { return active_item; }
+
+int ui_update(float mx, float my, float mwx, float mwy, int buttons)
+{
+    //mouse_buttons_last = mouse_buttons;
+    mouse_x = mx;
+    mouse_y = my;
+    mouse_wx = mwx;
+    mouse_wy = mwy;
+    mouse_buttons = buttons;
+    hot_item = becomming_hot_item;
+    becomming_hot_item = 0;
+    return 0;
+}
+
+/*
+static int ui_mouse_button_released(int index)
+{
+    return ((mouse_buttons_last>>index)&1) && !();
+}*/
+
+int ui_mouse_inside(float x, float y, float w, float h)
+{
+    if(mouse_x >= x && mouse_x <= x+w && mouse_y >= y && mouse_y <= y+h)
+        return 1;
+    return 0;
+}
+
+void ui_do_image(int texture, float x, float y, float w, float h)
+{
+    gfx_blend_normal();
+    gfx_texture_set(texture);
+    gfx_quads_begin();
+    gfx_quads_setcolor(1,1,1,1);
+    gfx_quads_setsubset(
+        0.0f, // startx
+        0.0f, // starty
+        1.0f, // endx
+        1.0f); // endy                                
+    gfx_quads_drawTL(x,y,w,h);
+    gfx_quads_end();
+}
+
+void ui_do_label(float x, float y, char *text)
+{
+    gfx_blend_normal();
+    gfx_texture_set(current_font->font_texture);
+    gfx_pretty_text(x, y, 18.f, text);
+}
+
+int ui_do_button(void *id, const char *text, int checked, float x, float y, float w, float h, draw_button_callback draw_func, void *extra)
+{
+    // logic
+    int r = 0;
+    int inside = ui_mouse_inside(x,y,w,h);
+
+	if(inside)
+	{
+		ui_set_hot_item(id);
+
+		if(ui_mouse_button(0))
+			ui_set_active_item(id);
+	}
+
+	if(ui_active_item() == id && ui_hot_item() == id && !ui_mouse_button(0))
+	{
+		ui_set_active_item(0);
+		r = 1;
+	}
+
+    draw_func(id, text, checked, x, y, w, h, extra);
+
+    return r;
+}
+
+int ui_do_button(void *id, const char *text, int checked, float x, float y, float w, float h, draw_button_callback draw_func)
+{
+	return ui_do_button(id, text, checked, x, y, w, h, draw_func, 0x0);
+}
+