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52 lines
903 B
52 lines
903 B
#ifndef IS_GAME_H_
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#define IS_GAME_H_
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#define _VRAM 0x8000
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#define _VRAM8000 _VRAM
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#define _VRAM8800 (_VRAM + 0x800)
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#define _VRAM9000 (_VRAM + 0x1000)
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#define _SCRN0 0x9800
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#define _SCRN1 0x9c00
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#define SCRN_X 160
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#define SCRN_Y 144
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#define SCRN_X_B 20
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#define SCRN_Y_B 18
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#define SCRN_VX 256
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#define SCRN_VY 256
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#define SCRN_VX_B 32
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#define SCRN_VX_Y 32
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#define SCREEN_HEIGHT_TILES 18
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#define SCREEN_WIDTH_TILES 20
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typedef enum {
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GAME_STATE_TITLE,
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GAME_STATE_LEVEL,
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GAME_STATE_MENU,
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} game_state_t;
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extern game_state_t game_state;
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/**
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* @brief Render the title screen.
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*/
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void title(void);
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/**
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* @brief Render the current game level.
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*/
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void level(void);
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/**
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* @brief Enable interrupts.
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*/
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void interrupts_enable(void) __preserves_regs(a, b, c, d, e, h, l);
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/**
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* @brief Disable interrupts.
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*/
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void interrupts_disable(void) __preserves_regs(a, b, c, d, e, h, l);
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#endif
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