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#include "isogfx-demo.h"
#include <gfx/gfx_app.h>
#include <isogfx/isogfx.h>
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
static const int TILE_WIDTH = 64;
static const int TILE_HEIGHT = TILE_WIDTH / 2;
static const int WORLD_WIDTH = 20;
static const int WORLD_HEIGHT = 20;
static const TileDesc tile_set[] = {
{.type = TileFromColour,
.width = TILE_WIDTH,
.height = TILE_HEIGHT,
.colour = (Pixel){.r = 0x38, .g = 0x3b, .b = 0x46, .a = 0xff}},
{.type = TileFromColour,
.width = TILE_WIDTH,
.height = TILE_HEIGHT,
.colour = (Pixel){.r = 0xA5, .g = 0xb3, .b = 0xc0, .a = 0xff}},
{.type = TileFromColour,
.width = TILE_WIDTH,
.height = TILE_HEIGHT,
.colour = (Pixel){.r = 0xdc, .g = 0x76, .b = 0x84, .a = 0xff}},
};
typedef enum Colour {
Black,
White,
Red,
} Colour;
typedef struct State {
Tile red;
int xpick;
int ypick;
} State;
static void make_checkerboard(IsoGfx* iso, Tile black, Tile white) {
assert(iso);
for (int y = 0; y < isogfx_world_height(iso); ++y) {
for (int x = 0; x < isogfx_world_width(iso); ++x) {
const int odd_col = x & 1;
const int odd_row = y & 1;
const Tile value = (odd_row ^ odd_col) == 0 ? black : white;
isogfx_set_tile(iso, x, y, value);
}
}
}
static void shutdown(IsoGfx* iso, void* app_state) {
assert(iso);
if (app_state) {
free(app_state);
}
}
static void update(IsoGfx* iso, void* app_state, double t, double dt) {
assert(iso);
assert(app_state);
State* state = (State*)(app_state);
double mouse_x, mouse_y;
gfx_app_get_mouse_position(&mouse_x, &mouse_y);
isogfx_pick_tile(iso, mouse_x, mouse_y, &state->xpick, &state->ypick);
printf("Picked tile: (%d, %d)\n", state->xpick, state->ypick);
}
static void render(IsoGfx* iso, void* app_state) {
assert(iso);
assert(app_state);
State* state = (State*)(app_state);
isogfx_render(iso);
if ((state->xpick != -1) && (state->ypick != -1)) {
isogfx_draw_tile(iso, state->xpick, state->ypick, state->red);
}
}
bool make_checkerboard_app(IsoGfx* iso, IsoGfxApp* app) {
assert(iso);
assert(app);
State* state = calloc(1, sizeof(State));
if (!state) {
return false;
}
if (!isogfx_make_world(
iso, &(WorldDesc){
.tile_width = TILE_WIDTH,
.tile_height = TILE_HEIGHT,
.world_width = WORLD_WIDTH,
.world_height = WORLD_HEIGHT})) {
goto cleanup;
}
const Tile black = isogfx_make_tile(iso, &tile_set[Black]);
const Tile white = isogfx_make_tile(iso, &tile_set[White]);
state->red = isogfx_make_tile(iso, &tile_set[Red]);
make_checkerboard(iso, black, white);
isogfx_render(iso);
app->state = state;
app->shutdown = shutdown;
app->update = update;
app->render = render;
return true;
cleanup:
free(state);
return false;
}
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