work

1 files changed, 241 insertions, 0 deletions

diff --git a/map.c b/map.c
new file mode 100644
index 0000000..443255f
--- /dev/null
+++ b/map.c
@@ -0,0 +1,241 @@
+#include "include/map.h"
+
+static int get_height_of_tile_tl(int current_height, int x, int y) {
+	int highest_point = current_height;
+	if (y > 0) {
+		int tile_above = map[y-1][x];
+		if (tile_above > highest_point) {
+			highest_point = tile_above;
+		}
+	}
+	if (y > 0 && x > 0) {
+		int tile_above = map[y-1][x-1];
+		if (tile_above > highest_point) {
+			highest_point = tile_above;
+		}
+	}
+	if (x > 0) {
+		int tile_above = map[y][x-1];
+		if (tile_above > highest_point) {
+			highest_point = tile_above;
+		}
+	}
+	return highest_point;
+}
+
+
+static int get_height_of_tile_br(int current_height, int x, int y) {
+	int highest_point = current_height;
+	if (x < 9) {
+		int tile_right = map[y][x+1];
+		if (tile_right > highest_point) {
+			highest_point = tile_right;
+		}
+	}
+	if (y < 9 && x < 9) {
+		int tile_bottom_right = map[y+1][x+1];
+		if (tile_bottom_right > highest_point) {
+			highest_point = tile_bottom_right;
+		}
+	}
+	if (y < 9) {
+		int tile_bottom = map[y+1][x];
+		if (tile_bottom > highest_point) {
+			highest_point = tile_bottom;
+		}
+	}
+	return highest_point;
+}
+
+static int get_height_of_tile_bl(int current_height, int x, int y) {
+	int highest_point = current_height;
+	if (y > 0 && x > 0) {
+		int tile_left = map[y][x-1];
+		if (tile_left > highest_point) {
+			highest_point = tile_left;
+		}
+	}
+	if (y < 9 && x > 0) {
+		int tile_bottom_left = map[y+1][x-1];
+		if (tile_bottom_left > highest_point) {
+			highest_point = tile_bottom_left;
+		}
+	}
+	if (y < 9) {
+		int tile_bottom = map[y+1][x];
+		if (tile_bottom > highest_point) {
+			highest_point = tile_bottom;
+		}
+	}
+	return highest_point;
+}
+
+static int get_height_of_tile_tr(int current_height, int x, int y) {
+	int highest_point = current_height;
+	if (y > 0) {
+		int tile_above = map[y-1][x];
+		if (tile_above > highest_point) {
+			highest_point = tile_above;
+		}
+	}
+	if (y > 0 && x < 9) {
+		int tile_above_right = map[y-1][x+1];
+		if (tile_above_right > highest_point) {
+			highest_point = tile_above_right;
+		}
+	}
+	if (x < 9) {
+		int tile_right = map[y][x+1];
+		if (tile_right > highest_point) {
+			highest_point = tile_right;
+		}
+	}
+	return highest_point;
+}
+
+// load hardcoded map.
+void load_map_from_data() {
+	for (int y = 0; y < 10; y++) {
+		for (int x = 9; x >= 0; x--) {
+			int h = map[y][x];
+			int highest_point_topleft = get_height_of_tile_tl(h, x, y);
+			int highest_point_topright = get_height_of_tile_tr(h, x, y);
+			int highest_point_bottomright = get_height_of_tile_br(h, x, y);
+			int highest_point_bottomleft = get_height_of_tile_bl(h, x, y);
+			map_loaded[y][x] = (tile){h, highest_point_topleft, highest_point_topright, highest_point_bottomleft, highest_point_bottomright};
+		}
+	}
+}
+
+tile get_tile_under_coords(platform_window* window, float x, float y) {
+	return map_loaded[(int)(y)][(int)(x)];
+}
+
+float get_height_of_tile_under_coords(platform_window* window, float tocheckx, float tochecky) {
+	tile tile_under_coords = get_tile_under_coords(window, tocheckx, tochecky);
+
+	int ty = (int)(tochecky);
+	int tx = (int)(tocheckx);
+
+	float percentage_x = tocheckx - tx;
+	float percentage_y = tochecky - ty;
+
+	float topline_h = min(tile_under_coords.topright, tile_under_coords.topleft);
+	float topline_diff = (tile_under_coords.topright - tile_under_coords.topleft) * percentage_x;
+	if (topline_diff < 0.0f) topline_diff = abs(tile_under_coords.topright - tile_under_coords.topleft) + topline_diff;
+	topline_h += topline_diff;
+
+	float bottomline_h = min(tile_under_coords.bottomright, tile_under_coords.bottomleft);
+	float bottomline_diff = (tile_under_coords.bottomright - tile_under_coords.bottomleft) * percentage_x;
+	if (bottomline_diff < 0.0f) bottomline_diff = abs(tile_under_coords.bottomright - tile_under_coords.bottomleft) + bottomline_diff;
+	bottomline_h += bottomline_diff;
+
+	float playerline = min(topline_h, bottomline_h);
+	float playerline_diff = (bottomline_h - topline_h) * percentage_y;
+	if (bottomline_h < topline_h) {
+		playerline_diff = (topline_h - bottomline_h) * (1 -percentage_y);
+	}
+	playerline += playerline_diff;
+
+	return playerline;
+}
+
+inline int get_tile_width(platform_window* window) {
+	int tile_width = window->height / 14;
+	if (window->width > window->height) tile_width = window->width / 14;
+	return tile_width;
+}
+
+inline int get_tile_height(platform_window* window) {
+	int tile_width = get_tile_width(window);
+	int tile_height = tile_width * 1;
+	return tile_height;
+}
+
+bool is_in_bounds(platform_window* window, float x, float y) {
+	int tile_width = get_tile_width(window);
+	int tile_height = get_tile_height(window);
+	int xdiff_between_bottom_and_top = tile_width/3;
+	return (x >= 0 && x <= 10 && y >= 0 && y < 10);
+}
+
+
+void draw_grid(platform_window* window) {
+	map_info info = get_map_info(window);
+
+	for (int y = 0; y < 10; y++) {
+		for (int x = 9; x >= 0; x--) {
+			tile tile = map_loaded[y][x];
+
+			int xdiff_between_bottom_and_top = info.tile_width/3;
+			int render_x =  (info.tile_width * x) + (xdiff_between_bottom_and_top * y);
+			int render_y = info.tile_height * y;
+			render_y -= tile.height*info.px_raised_per_h;
+
+			vec2f topleft;
+			vec2f bottomleft;
+			vec2f bottomright;
+			vec2f topright;
+
+			int highest_point_topleft = tile.topleft;
+			topleft = (vec2f){render_x, info.tile_width * y - highest_point_topleft*info.px_raised_per_h};
+			
+			int highest_point_topright = tile.topright;
+			topright = (vec2f){render_x + info.tile_width, info.tile_height * y - highest_point_topright*info.px_raised_per_h};
+
+			int highest_point_bottomright = tile.bottomright;
+			bottomright = (vec2f){render_x + xdiff_between_bottom_and_top+info.tile_width, info.tile_height * y + info.tile_height - highest_point_bottomright*info.px_raised_per_h};
+
+			int highest_point_bottomleft = tile.bottomleft;
+			bottomleft = (vec2f){render_x + xdiff_between_bottom_and_top, info.tile_height * y + info.tile_height - highest_point_bottomleft*info.px_raised_per_h};
+
+			int r = 220;
+			if (highest_point_topleft > highest_point_bottomleft || highest_point_topright > highest_point_bottomright ||
+				highest_point_topleft > highest_point_bottomright || highest_point_topright > highest_point_bottomleft ||
+				highest_point_topright > highest_point_topleft || highest_point_bottomright > highest_point_bottomleft) r = 180;
+			if (highest_point_topleft < highest_point_bottomleft || highest_point_topright < highest_point_bottomright ||
+				highest_point_topleft > highest_point_topright) r = 240;
+
+			renderer->render_quad(
+				topleft.x, topleft.y, 
+				bottomleft.x, bottomleft.y, 
+				bottomright.x, bottomright.y, 
+				topright.x, topright.y, 
+				rgb(r,0,0));
+
+			if (highest_point_topleft != highest_point_bottomright && highest_point_bottomleft == highest_point_topright) {
+				if (highest_point_bottomleft < highest_point_topleft || highest_point_bottomleft < highest_point_bottomright) {
+					renderer->render_tri(topleft.x, topleft.y, 
+						bottomleft.x, bottomleft.y, 
+						bottomright.x, bottomright.y, rgb(180,0,0));
+				}
+				renderer->render_line(topleft.x, topleft.y, bottomright.x, bottomright.y, 1, rgb(0,0,255)); // diag
+			}
+
+			if (highest_point_bottomleft != highest_point_topright && highest_point_topleft == highest_point_bottomright) {
+				renderer->render_line(topright.x, topright.y, bottomleft.x, bottomleft.y, 1, rgb(0,0,255)); // diag
+			}
+			
+			renderer->render_line(topleft.x, topleft.y, topright.x, topright.y, 1, rgb(0,0,255)); // top
+			renderer->render_line(topleft.x, topleft.y, bottomleft.x, bottomleft.y, 1, rgb(0,0,255)); // left
+			renderer->render_line(topright.x, topright.y, bottomright.x, bottomright.y, 1, rgb(0,0,255)); // right
+			renderer->render_line(bottomleft.x, bottomleft.y, bottomright.x, bottomright.y, 1, rgb(0,0,255)); // bottom
+
+			map_loaded[y][x].tl = topleft;
+			map_loaded[y][x].tr = topright;
+			map_loaded[y][x].bl = bottomleft;
+			map_loaded[y][x].br = bottomright;
+		}
+
+		draw_objects_at_row(window, y);
+	}
+}
+
+inline map_info get_map_info(platform_window* window) {
+	map_info info;
+	info.tile_width = get_tile_width(window);
+	info.tile_height = get_tile_height(window);
+	info.px_incline = info.tile_width/3;
+	info.px_raised_per_h = info.tile_height/2.5;
+	return info;
+}
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