Add pause menu

commandblockguy · Jan 14, 2021 · 11239e1 · 11239e1
1 parent c8cd80d
commit 11239e1
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Showing 3 changed files with 91 additions and 0 deletions.
diff --git a/src/graphics/gui.cpp b/src/graphics/gui.cpp
@@ -328,6 +328,83 @@ void display_game_banner(uint8_t mission, uint8_t lives) {
     gfx_PrintUInt(lives, 1);
 }
 
+void rounded_rectangle(uint24_t x, uint8_t y, uint24_t width, uint8_t height, uint8_t radius) {
+    gfx_FillCircle_NoClip(x + radius + 1, y + radius + 1, radius);
+    gfx_FillCircle_NoClip(x + radius + 1, y + height - radius - 1, radius);
+    gfx_FillCircle_NoClip(x + width - radius - 1, y + radius + 1, radius);
+    gfx_FillCircle_NoClip(x + width - radius - 1, y + height - radius - 1, radius);
+
+    gfx_FillRectangle_NoClip(x + radius + 1, y, x + width - x - 2 * radius - 2, radius + 1);
+    gfx_FillRectangle_NoClip(x, y + radius + 1, x + width - x, y + height - y - 2 * radius - 2);
+    gfx_FillRectangle_NoClip(x + radius + 1, y + height - radius - 1, x + width - x - 2 * radius - 2, radius + 1);
+}
+
+uint8_t pause_menu() {
+    const uint8_t OUTER_BORDER_WIDTH = 2;
+    const uint8_t INNER_BORDER_WIDTH = 2;
+    const uint8_t BORDER_CURVE_RADIUS = 7;
+    const uint24_t BUTTON_WIDTH = 244;
+    //const uint24_t BUTTON_WIDTH_SELECTED = 269;
+    const uint8_t BUTTON_HEIGHT = 58;
+    //const uint8_t BUTTON_HEIGHT_SELECTED = 63;
+    const uint8_t BUTTON_GAP = 7;
+
+    const uint8_t TOP_BUTTON_CENTER_Y = LCD_HEIGHT / 2 - BUTTON_GAP - BUTTON_HEIGHT;
+
+    needs_redraw = true;
+
+    int8_t selection = 0;
+
+    gfx_SetTextFGColor(COL_BLACK);
+    gfx_SetTextScale(2, 2);
+
+    while(true) {
+        kb_Scan();
+        if(kb_IsDown(kb_KeyClear)) {
+            gfx_SetTextScale(1, 1);
+            return 0;
+        }
+        if(kb_IsDown(kb_Key2nd) || kb_IsDown(kb_KeyClear)) {
+            gfx_SetTextScale(1, 1);
+            return selection;
+        }
+        if(kb_IsDown(kb_KeyEnter)) return selection;
+
+        if(kb_IsDown(kb_KeyUp)) selection--;
+        if(kb_IsDown(kb_KeyDown)) selection++;
+        if(selection < 0) selection = 2;
+        if(selection >= 3) selection = 0;
+
+        while(kb_IsDown(kb_KeyUp) || kb_IsDown(kb_KeyDown)) kb_Scan();
+
+        for(int8_t button = 0; button < 3; button++) {
+            const char *strings[3] = {"Continue", "Start Over", "Quit"};
+            uint8_t center_y = TOP_BUTTON_CENTER_Y + button * (BUTTON_HEIGHT + BUTTON_GAP);
+            uint24_t x = LCD_WIDTH / 2 - BUTTON_WIDTH / 2;
+            uint8_t y = center_y - BUTTON_HEIGHT / 2;
+
+            gfx_SetColor(COL_WHITE);
+            rounded_rectangle(x, y, BUTTON_WIDTH, BUTTON_HEIGHT, BORDER_CURVE_RADIUS);
+
+            gfx_SetColor(COL_LIVES_TXT);
+            rounded_rectangle(x + OUTER_BORDER_WIDTH, y + OUTER_BORDER_WIDTH,
+                              BUTTON_WIDTH - 2 * OUTER_BORDER_WIDTH, BUTTON_HEIGHT - 2 * OUTER_BORDER_WIDTH,
+                              BORDER_CURVE_RADIUS - OUTER_BORDER_WIDTH);
+
+            gfx_SetColor(button == selection ? COL_RIB_SHADOW : COL_WHITE);
+            rounded_rectangle(x + OUTER_BORDER_WIDTH + INNER_BORDER_WIDTH,
+                              y + OUTER_BORDER_WIDTH + INNER_BORDER_WIDTH,
+                              BUTTON_WIDTH - 2 * (OUTER_BORDER_WIDTH + INNER_BORDER_WIDTH),
+                              BUTTON_HEIGHT - 2 * (OUTER_BORDER_WIDTH + INNER_BORDER_WIDTH),
+                              BORDER_CURVE_RADIUS - OUTER_BORDER_WIDTH - INNER_BORDER_WIDTH);
+
+            gfx_SetTextXY(LCD_WIDTH / 2 - gfx_GetStringWidth(strings[button]) / 2, y + BUTTON_HEIGHT / 2 - 8);
+            gfx_PrintString(strings[button]);
+        }
+        gfx_BlitBuffer();
+    };
+}
+
 void bang() {
     gfx_FillScreen(COL_BLACK);
     gfx_SetColor(COL_WHITE);

diff --git a/src/graphics/gui.h b/src/graphics/gui.h
@@ -21,6 +21,8 @@ void display_game_kill_counter();
 
 void display_game_banner(uint8_t mission, uint8_t lives);
 
+uint8_t pause_menu();
+
 void bang();
 
 #endif //TANKS_GUI_H
diff --git a/src/input.cpp b/src/input.cpp
@@ -3,6 +3,7 @@
 #include "util/profiler.h"
 #include "objects/tank.h"
 #include "globals.h"
+#include "graphics/gui.h"
 
 //Player action cooldown
 #define SHOT_COOLDOWN 5
@@ -99,6 +100,17 @@ uint8_t handle_input() {
     if(kb_IsDown(kb_KeyGraphVar)) {
         player->barrel_rot += PLAYER_BARREL_ROTATION;
     }
+    if(kb_IsDown(kb_KeyAdd)) {
+        switch(pause_menu()) {
+            default:
+            case 0:
+                break;
+            case 1:
+                // todo: restart
+            case 2:
+                return QUIT;
+        }
+    }
     if(kb_IsDown(kb_KeyDel)) { // TODO: remove
         return NEXT_LEVEL;
     }