93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
#include "ground_lib.h"
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#include <SDL3/SDL.h>
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#include <SDL3/SDL_main.h>
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#include <SDL3/SDL_render.h>
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SDL_Window* window;
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SDL_Renderer* renderer;
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SDL_Event event;
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int width;
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int height;
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bool hasRunInit;
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GroundValue initSDL(GroundValue* args, int arg_count) {
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if (hasRunInit) return GROUND_INT_VAL(2);
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// args are window title, width, height
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VALIDATE_ARGS_3(GROUND_STRING, GROUND_INT, GROUND_INT);
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SDL_Init(SDL_INIT_VIDEO);
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width = GET_INT(args[1]);
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height = GET_INT(args[2]);
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SDL_CreateWindowAndRenderer(GET_STRING(args[0]), width, height, SDL_WINDOW_OPENGL, &window, &renderer);
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if (window == NULL) {
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std::cout << "Couldn't create SDL window" << std::endl;
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return GROUND_INT_VAL(1);
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}
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hasRunInit = true;
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return GROUND_INT_VAL(0);
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}
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GroundValue pollEvent(GroundValue* args, int arg_count) {
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if (!hasRunInit) {
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std::cout << "Cannot poll event, please run !grogs:initSDL first" << std::endl;
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return GROUND_INT_VAL(-1);
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}
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SDL_PollEvent(&event);
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if (event.type == SDL_EVENT_QUIT) {
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return GROUND_INT_VAL(0);
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}
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return GROUND_INT_VAL(-1);
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}
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GroundValue clearRenderer(GroundValue* args, int arg_count) {
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if (!hasRunInit) {
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std::cout << "Cannot clear renderer, please run !grogs:initSDL first" << std::endl;
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return GROUND_INT_VAL(-1);
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}
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SDL_RenderClear(renderer);
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return GROUND_INT_VAL(0);
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}
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GroundValue renderFrame(GroundValue* args, int arg_count) {
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if (!hasRunInit) {
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std::cout << "Cannot render frame, please run !grogs:initSDL first" << std::endl;
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return GROUND_INT_VAL(-1);
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}
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SDL_RenderPresent(renderer);
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return GROUND_INT_VAL(0);
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}
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GroundValue setPixel(GroundValue* args, int arg_count) {
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if (!hasRunInit) {
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std::cout << "Cannot set pixel, please run !grogs:initSDL first" << std::endl;
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return GROUND_INT_VAL(-1);
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}
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VALIDATE_ARGS_5(GROUND_INT, GROUND_INT, GROUND_INT, GROUND_INT, GROUND_INT);
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// xpos, ypos, red, green, blue
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int pixelX = GET_INT(args[0]);
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int pixelY = GET_INT(args[1]);
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int red = GET_INT(args[2]);
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int green = GET_INT(args[3]);
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int blue = GET_INT(args[4]);
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SDL_SetRenderDrawColor(renderer, red, green, blue, 255);
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SDL_RenderPoint(renderer, pixelX, pixelY);
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return GROUND_INT_VAL(0);
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}
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GROUND_LIBRARY_INTERFACE()
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GROUND_LIBRARY_INIT()
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REGISTER_GROUND_FUNCTION(initSDL);
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REGISTER_GROUND_FUNCTION(renderFrame);
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REGISTER_GROUND_FUNCTION(pollEvent);
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REGISTER_GROUND_FUNCTION(clearRenderer);
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REGISTER_GROUND_FUNCTION(setPixel);
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GROUND_LIBRARY_INIT_END()
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GROUND_LIBRARY_CLEANUP()
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GROUND_LIBRARY_CLEANUP_END()
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