From fdf1a42bba882acc87db3bdd322f4458367d0952 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Sun, 29 Nov 2020 08:04:13 -0500
Subject: display optimization; sprites

---
 main.c | 162 ++++++++++++++++++++++++++++++++++++++---------------------------
 1 file changed, 95 insertions(+), 67 deletions(-)

(limited to 'main.c')

diff --git a/main.c b/main.c
index 126c47e..e7949a8 100644
--- a/main.c
+++ b/main.c
@@ -1,67 +1,95 @@
-/**
- * main.c - Firmware entry point and main loop for game or testing.
- * Copyright (C) 2020  Clyne Sullivan
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * See the GNU General Public License for more details.
- */
-
-#include "buttons.h"
-#include "ch.h"
-#include "dogs.h"
-#include "hal.h"
-
-/*
- * Progress:
- *  - Serial through LPUART1 works (38400 baud, takes over swdio pins)
- *  - Display comm. over SPI, can clear screen
- *  - Can read buttons through PAL (through interrupts now)
- */
-
-THD_WORKING_AREA(waThread2, 96);
-THD_FUNCTION(Thread2, arg)
-{
-    (void)arg;
-
-    dogs_init();
-
-    while (1) {
-        chThdSleepMilliseconds(100);
-        dogs_buffer[0] = button_state;
-        dogs_buffer[1] = button_state;
-        dogs_buffer[2] = button_state;
-        dogs_buffer[3] = button_state;
-        dogs_flush();
-    }
-}
-
-THD_TABLE_BEGIN
-    THD_TABLE_THREAD(0, "game", waThread2, Thread2, NULL)
-THD_TABLE_END
-
-int main(void)
-{
-    halInit();
-    chSysInit();
-
-    buttons_init();
-
-    // Below code for serial -- note that it cuts off debugging, and MUST be used in a thread
-    //chThdSleepMilliseconds(2000);
-    //palSetPadMode(GPIOA, 13, PAL_MODE_ALTERNATE(6));
-    //palSetPadMode(GPIOA, 14, PAL_MODE_ALTERNATE(6));
-    //sdStart(&LPSD1, NULL);
-    //chnWrite(&LPSD1, (const uint8_t *)"Hello World!\r\n", 14);
-
-
-
-    /* This is now the idle thread loop, you may perform here a low priority
-       task but YOU MUST NEVER TRY TO SLEEP OR WAIT in this loop. Note that
-       this tasks runs at the lowest priority level so any instruction added
-       here will be executed after all other tasks have been started. */
-    while (1);
-}
-
+/**
+ * main.c - Firmware entry point and main loop for game or testing.
+ * Copyright (C) 2020  Clyne Sullivan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * See the GNU General Public License for more details.
+ */
+
+#include "buttons.h"
+#include "ch.h"
+#include "dogs.h"
+#include "hal.h"
+
+/*
+ * Progress:
+ *  - Serial through LPUART1 works (38400 baud, takes over swdio pins)
+ *  - Display comm. over SPI, can clear screen
+ *  - Can read buttons through PAL (through interrupts now)
+ */
+
+THD_WORKING_AREA(waThread2, 96);
+THD_FUNCTION(Thread2, arg)
+{
+    (void)arg;
+
+    dogs_init();
+
+    const unsigned char testbitmap[] = {
+        8, 8,
+        0b00111100,
+        0b01100110,
+        0b01000010,
+        0b01111110,
+        0b01100110,
+        0b01000010,
+        0b11000000,
+        0b11000000,
+    };
+
+
+    int x = 0, y = 0;
+    while (1) {
+        chThdSleepMilliseconds(100);
+
+        unsigned char b = button_state;
+        if ((b & (BUTTON_JOYUR | BUTTON_JOYUL)) == (BUTTON_JOYUR | BUTTON_JOYUL))
+            y--;
+        else if ((b & (BUTTON_JOYUR | BUTTON_JOYDR)) == (BUTTON_JOYUR | BUTTON_JOYDR))
+            x++;
+        else if ((b & (BUTTON_JOYDR | BUTTON_JOYDL)) == (BUTTON_JOYDR | BUTTON_JOYDL))
+            y++;
+        else if ((b & (BUTTON_JOYDL | BUTTON_JOYUL)) == (BUTTON_JOYDL | BUTTON_JOYUL))
+            x--;
+
+        dogs_clear();
+        draw_bitmap(x, y, testbitmap);
+        dogs_flush();
+    }
+}
+
+THD_TABLE_BEGIN
+    THD_TABLE_THREAD(0, "game", waThread2, Thread2, NULL)
+THD_TABLE_END
+
+int main(void)
+{
+    halInit();
+    chSysInit();
+
+    buttons_init();
+
+    // Below code for serial -- note that it cuts off debugging, and MUST be used in a thread
+    //chThdSleepMilliseconds(2000);
+    //palSetPadMode(GPIOA, 13, PAL_MODE_ALTERNATE(6));
+    //palSetPadMode(GPIOA, 14, PAL_MODE_ALTERNATE(6));
+    //sdStart(&LPSD1, NULL);
+    //chnWrite(&LPSD1, (const uint8_t *)"Hello World!\r\n", 14);
+
+
+
+    /* This is now the idle thread loop, you may perform here a low priority
+       task but YOU MUST NEVER TRY TO SLEEP OR WAIT in this loop. Note that
+       this tasks runs at the lowest priority level so any instruction added
+       here will be executed after all other tasks have been started. */
+    while (1);
+}
+
+void HardFault_Handler()
+{
+    while (1);
+}
+
-- 
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